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Collaborative Testing Services, Inc. Containerboard Interlaboratory Testing Program Participant Summary Report #587 (J) - August 2018 Introduction to the Containerboard Program Explanation of Tables and Definitions of Terms Analysis Sample Analysis Name 201 BX 12 Box Compression Strength , Corrugated Boxes 202 EC 11 Edgewise Compressive Strength , Wax ( T 811 ) , Corrugated Board 203 EC 11 Edgewise Compressive Strength by Clamp ( T 839 ) , Corrugated Board 205 42 D 3 Mullen Burst of Linerboard , 42 lb Linerboard 207 35 E 1 Mullen Burst of Linerboard , 35 lb Linerboard 215 42 D 3 Ring Crush of Linerboard , Rigid Platen Type , 42 lb Linerboard 217 35 E 1 Ring Crush of Linerboard , Rigid Platen Type , 35 lb Linerboard 223 42 D 3 STFI of Linerboard , 42 lb Linerboard 225 35 E 1 STFI of Linerboard , 35 lb Linerboard 228 56 A Roughness - Stylus Method , 56 lb Linerboard 229 42 D 3 Roughness - Sheffield Method , 42 lb Linerboard 231 36 Z Internal Bond Strength , Linerboard , 36 lb Linerboard 234 56 A Coefficient of Static Friction - Inclined Plane , 56 lb Linerboard 237 36 Z Air Resistance - Gurley Method , Linerboard , 36 lb Linerboard 240 CM 92 Flat Crush Strength ( CMT ) of Medium , 26 lb Corrugating Medium 250 CM 92 Fluted Crush of Medium , 26 lb Corrugating Medium 255 CM 92 Ring Crush of Medium , 26 lb Corrugating Medium 261 CM 92 STFI of Medium , 26 lb Corrugating Medium

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Page 1: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Collaborative Testing Services, Inc.

Containerboard Interlaboratory Testing Program

Participant Summary Report #587 (J) - August 2018

Introduction to the Containerboard Program

Explanation of Tables and Definitions of Terms

Analysis Sample Analysis Name

201 BX12 Box Compression Strength , Corrugated Boxes

202 EC11 Edgewise Compressive Strength , Wax ( T 811 ) , Corrugated Board

203 EC11 Edgewise Compressive Strength by Clamp ( T 839 ) , Corrugated Board

205 42D3 Mullen Burst of Linerboard , 42 lb Linerboard

207 35E1 Mullen Burst of Linerboard , 35 lb Linerboard

215 42D3 Ring Crush of Linerboard , Rigid Platen Type , 42 lb Linerboard

217 35E1 Ring Crush of Linerboard , Rigid Platen Type , 35 lb Linerboard

223 42D3 STFI of Linerboard , 42 lb Linerboard

225 35E1 STFI of Linerboard , 35 lb Linerboard

228 56A Roughness - Stylus Method , 56 lb Linerboard

229 42D3 Roughness - Sheffield Method , 42 lb Linerboard

231 36Z Internal Bond Strength , Linerboard , 36 lb Linerboard

234 56A Coefficient of Static Friction - Inclined Plane , 56 lb Linerboard

237 36Z Air Resistance - Gurley Method , Linerboard , 36 lb Linerboard

240 CM92 Flat Crush Strength ( CMT ) of Medium , 26 lb Corrugating Medium

250 CM92 Fluted Crush of Medium , 26 lb Corrugating Medium

255 CM92 Ring Crush of Medium , 26 lb Corrugating Medium

261 CM92 STFI of Medium , 26 lb Corrugating Medium

Page 2: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Collaborative Testing Services, Inc.CONTAINERBOARD INTERLABORATORY TESTING PROGRAM

INTRODUCTION

The Interlaboratory Testing Program for Containerboard is operated and maintained by Collaborative Testing Services, Inc. (CTS), with technical guidance provided by the Containerboard Group of the American Forest & Paper Association. The tests are conducted on a monthly basis.

For these tests samples of linerboard and corrugating medium, that each have been separately randomized from narrow rolls, are distributed for testing weekly. One weight of medium (26 lb.) is used for Concora Flat Crush Strength, Corrugated Fluted Crush Strength, Ring Crush Strength, and STFI Compression. Two weights of linerboard are tested each month for Mullen Burst, Ring Crush, and STFI Compression: 42 lb. - every month; 36 lb. and 56 lb. - alternate months. The participants return their test results for analysis and receive a monthly report.

Please refer to the section, "EXPLANATION OF TABLES", for definitions of terms and guidelines to interpreting the results.

USE OF AVERAGE MEAN AS A COLLABORATIVE REFERENCE VALUE

The samples of linerboard and corrugating medium, which have been randomized and placed in sealed packages for distribution in this program, may be used as collaborative reference materials. The values most representative of each material are the Cumulative Grand Means in the latest reports, given at the bottom right of each table. Comparisons can only be made within one lot of material; therefore check your measurements against the Cumulative Grand Means with the same lot code as on the packages being tested.

Material Lot Code Dates in Use

26 lb Corrugating Medium CM92 January 2018-CurrentCM91 October 2016-December 2017

35 lb Linerboard 35E1 June 2017-Current

42 lb Linerboard 42D3 November 2017-Current42D2 August 2016-October 2017

56 lb Linerboard 56A2 January 2018-Current56A1 July 2016-November 2017

ABOUT CTSFounded in 1971, Collaborative Testing Services, Inc. (CTS) is a privately-owned company that specializes in interlaboratory tests for a wide variety of industries, including rubber, plastics, fasteners and metals, containerboard, paper, color, and wine, as well as proficiency tests for forensic laboratories. All of the tests are designed to assist organizations in achieving and maintaining quality

control objectives. Labs from the U.S., as well as more than 80 countries, currently participate in the CTS programs.

For further information, contact:Collaborative Testing Services, Inc

21331 Gentry DriveSterling, VA 20166 USA

Voice: 571-434-1925Fax: 571-434-1937

[email protected]

Page 3: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Definitions of Terms Used Weekly Results

Laboratory Data

WebCode - A six character laboratory identifier used to maintain information on a confidential basis. The WebCodeis unique for each cycle and will change for each report. Your WebCode can be found in yourIndividual Report (Current Month Performance Report) and your datasheet.

Weekly Means - The average of the test results obtained by the participant for each week that data were reported.

Consensus Data

Wk Mean - For each week, the average of the Means for all the participants, excluding those laboratories flagged with an 'X'.

Avg SD - For each week, the average of the within-laboratory standard deviations (SD's) for all the participants,excluding those laboratories flagged with an 'X'. The Avg SD is an indication of the variation of measurements within an average laboratory.

SD btwn Labs - For each week, the standard deviation of the laboratory Means about the Wk Mean, excluding thoselaboratories flagged with an 'X'. The SD LABS is an indication of the precision of measurement between the laboratories.

Labs Incld - The number of laboratory Means included in the Wk Mean for that week.Labs Excld - The number of laboratory Means reported but excluded from the Wk Mean for that week because of

outlying results ('X' following Mean).Labs not rcvd - The number of laboratories failing to report for that week.

Monthly Results

Laboratory Data

Mean - For each laboratory, the average of all the weekly Means reported for this month.CPV - Comparative Performance Value, an indication of how well a laboratory's Mean agrees with the

other participants. The CPV is a ratio indicating the number of standard deviations from the consensus mean (Monthly Mean). The closer a laboratory's CPV is to zero, the more consistent its results are with the other participants' data.

SD - For each laboratory, the average of the weekly within-lab standard deviations (SD's) for all reported Weekly Means this month.

SD Wk - The standard deviation among the laboratory's weekly Means, including those Means flagged with an 'X'. The SD Wks is an indication of that laboratory's ability to obtain constant results from week to week.

Consensus Data

Month Mean - The average of the Means for all the participants, excluding those laboratories flagged with an 'X,' reporting data for this month.

Avg SD - For the current month, the average of the within-laboratory standard deviations (SD's) for all the participants, excluding those laboratories flagged with an 'X'.

SD btwn Labs - For the current month, the standard deviation of the laboratory Means about the Month Mean, excludingthose laboratories flagged with an 'X'.

SD btwn Group - For the current month, the standard deviation of the laboratory Means within the group about the Month Mean, excluding those laboratories flagged with an 'X'.

SD btwn Wks - For the current month, the average of the laboratory between week standard deviations (SD Wks') for all the participants, excluding those laboratories flagged with an 'X'.

EXPLANATION OF TABLES

Each analysis is divided into three time spans. On the left side of the table are the individual laboratory results for each week of the month; in the center are each lab's statistical data for the month; and on the right are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants for each of the three time spans.

Page 4: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Cumulative Results

Laboratory Data

Mean - For each lab, the average of all the monthly Means reported for the weeks shown.CPV - Comparative Performance Value, an indication of how well a laboratory's cumulative mean agrees

with the other participants. The CPV is a ratio indicating the number of standard deviations from the consensus mean (Monthly Mean).

SDr - For each laboratory, the average of the weekly within-lab standard deviations (SD's) for the weeks shown.

SD Wk - The standard deviation among the laboratory's weekly Means for the weeks shown, including those Means flagged with an 'X'. The SD Wks is an indication of that laboratory's ability to obtain constant results from week to week.

Wks - The number of weeks included in the cumulative period.Inst - The two letter instrument code. Codes are summarized at the bottom of the last analysis page.

Consensus Data

Grand Mean - The average of the Means for all the participants, excluding those laboratories flagged with an 'X,' reporting data for the number of weeks included in the cumulative period.

Avg SD - For the cumulative period, the average of the within-laboratory standard deviations (SD's) for all theparticipants, excluding those laboratories flagged with an 'X'.

SD btwn Labs - For the cumulative period, the standard deviation of the laboratory Means about the Month Mean, excluding those laboratories flagged with an 'X'.

SD btwn Wks - For the cumulative period, the average of the laboratory between week standard deviations for all the participants, excluding those laboratories flagged with an 'X'.

Any laboratory that receives a 'flag' following a mean or standard deviation should refer to the chart below for an explanation of the data flag symbol:

Flag Explanation

Data Flags " X " and " * " indicate a laboratory's performance on an average value differed from the consensus.Data Flags " H " and " L " indicate a laboratory's performance on a standard deviation differed from the consensus.

Flags assigned to Weekly Means, Monthly Mean and Cumulative Mean: X Excluded from the weekly means, monthly means and/or the cumulative mean. Immediate review of data

and/or testing procedure is recommended. * Included in the weekly means, monthly means and/or the cumulative mean; however, lab should review

testing procedure and monitor future results.

Flags assigned to Weekly Means: H Indicates high within-laboratory standard deviation. The laboratory SD for each week is not shown, but

laboratory average SD and consensus average SD values are shown. L Indicates low within-laboratory standard deviation. The laboratory SD for each week is not shown, but

laboratory monthly average SD and consensus average SD values are shown.

Flags assigned to Monthly SD Wks and Cumulative SD Wks: H Indicates high variabilty between weekly means (high week-to-week variation). L Indicates low variabilty between weekly means (low week-to-week variation).

Page 5: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 201

Report #587 (J)August 2018

Top to Bottom Box Compression Strength, Corrugated Boxes - BX12TAPPI Official Test Method T804

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

2M994B 1.70623.3 591.4 41.21 LG21.9812.42

4AF8ZA -0.47555.8 571.6 30.26 LH32.6221.88

76YHCH 1.14606.0 592.3 21.25 EX19.3032.07

7BH4YU -1.38527.2 546.9 4-0.91 EX13.7822.99

94G9E2 -1.27530.6 533.1 4-1.57 LS38.8232.00

AYK3FP 1.30611.0 596.8 41.46 ES14.2416.00

ETYVKD -0.79545.8 547.8 4-0.87 LM11.5625.66

FGJAR4 0.34580.8 567.8 40.08 EX40.2328.10

FN2L66 0.64590.2 588.8 41.08 ER3.6134.94 L

G2Z7MK 0.14574.8 576.4 40.49 ET17.0417.87

GCGQ6W -0.23563.2 555.3 4-0.51 LG18.4213.89

HG9KF3 0.05572.0 578.0 40.57 LM11.3615.84

K8V8DP 0.43583.8 596.4 41.45 LS12.985.57 L

MMJYBV -1.52522.9 528.8 4-1.77 LS19.8341.57

MPQEKM -0.52554.1 558.8 4-0.34 TE11.4633.49

UB9TLN -0.70548.4 547.4 4-0.89 LG3.8318.85 L

VEZGHL -0.91542.0 545.9 4-0.96 LL4.3026.81

VW37NQ 2.08635.2 * 646.4 43.83 X ER10.4231.28

X3HJN2 1.01601.8 571.6 40.26 ER22.1314.39

XZDZGT -0.42557.4 543.7 4-1.06 LS9.9215.49

YBAGPV 0.89598.2 584.9 40.90 LG12.9124.86

ZK8LBF 0.02571.0 552.4 4-0.65 LS60.2523.81 H

ZPJMEY -0.24563.0 556.3 4-0.47 ER13.8521.16

ZQDHUF -1.30529.9 586.9 40.99 ET50.2217.99 H

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

570.35 566.06

31.19 20.99

24 23

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

24.36 24.82

Consensus By Method

Test Method Group MeanSD btwnGroup

Difference from Grand Mean Labs Included

Hot melt adhesive sealing 561.50 33.32 8.84 6

Clip sealing 573.29 30.87 2.95 18

Printed: September 24, 2018 Copyright © 2018 CTS, Inc5

Page 6: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 201

Report #587 (J)August 2018

Top to Bottom Box Compression Strength, Corrugated Boxes - BX12TAPPI Official Test Method T804

Key to Instrument Codes Reported by Participants

ER Emerson 6200 Series ES Emerson 8510

ET Emerson 7200 EX Emerson Apparatus (Model not specified)

LG TLS / L.A.B. Validator Series LH L.A.B. Compression Tester Model #10610

LL Lansmont 76-5K LM Lansmont 122-15k

LS Lansmont Squeezer TE Testometric M500 - 25 KN

Printed: September 24, 2018 Copyright © 2018 CTS, Inc6

Page 7: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 202

Report #587 (J)August 2018

Edgewise Compressive Strength, by T811, Corrugated Board - EC11TAPPI Official Test Method T811

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

7BH4YU 0.2241.5 40.7 3-0.05 LC0.751.17

DFBFYY 0.5843.2 40.1 3-0.19 LC3.692.32 H

F3XXEA -1.4633.8 35.7 2-1.29 WK2.720.82 L

K6NPFT 0.0640.8 41.1 30.06 TD1.281.32

K8V8DP -2.1330.7 * 32.8 3-2.04 * EM1.801.67

QY6FTR -0.0240.4 42.5 20.41 XX2.914.95 H

UB9TLN 0.6643.6 43.6 30.68 TH0.491.85

XULTYK 1.6548.1 48.1 11.83 TD0.001.96

XZDZGT 0.6343.4 43.9 30.76 LC0.851.98

YBAGPV 0.3942.3 43.1 30.55 LE0.811.61

ZK8LBF -0.0640.2 40.0 3-0.21 LD0.482.11

ZPJMEY -0.5238.1 38.8 3-0.52 EN0.601.93

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

40.52 40.86

4.60 3.97

12 12

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

2.21 1.84

Key to Instrument Codes Reported by Participants

EM Emerson 1200 Series EN Emerson 2200

LC L&W Crush Tester 48 LD L&W Crush Tester 248

LE L&W Crush Tester 840 TD TMI Digital Crush Tester, Model 17-09

TH TMI Monitor/Compression Tester, Model 17-76 WK Zwick Z005 Crush Tester

XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc7

Page 8: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 203

Report #587 (J)August 2018

Edgewise Compressive Strength by T839, Corrugated Board - EC11TAPPI Official Test Method T839

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

2M994B 1.3746.4 44.7 30.53 EM1.451.68

2UWMBQ -9.6822.7 X 22.7 1-10.66 X LD0.000.61 L

4AF8ZA 0.4044.3 43.4 3-0.14 EM1.021.73

4NHXG8 4.0152.1 X 44.5 30.40 LD9.050.66 HL

76YHCH 0.2343.9 44.0 20.15 TL0.090.86

7BH4YU -0.3542.7 43.1 3-0.30 LC0.461.00

94G9E2 -1.3240.6 41.9 3-0.91 TB1.182.12

9BE7ZJ 0.3944.3 43.7 3-0.01 LD0.542.16

AYK3FP 0.7345.0 45.0 30.64 LD1.241.80

CW3WN6 1.1445.9 46.0 31.16 LD0.121.66 L

DFBFYY 0.4944.5 44.7 30.48 LC0.191.50 L

DFVY47 0.8045.2 45.1 30.69 TK2.112.56

ETYVKD 3.4150.8 X 47.6 31.95 * EM2.900.98

F3XXEA -2.5238.0 * 39.0 2-2.36 * WK1.441.00

FGJAR4 0.9745.5 44.4 30.34 LD1.201.66

G2Z7MK -0.8841.5 42.8 3-0.43 EM2.021.38

GCGQ6W -0.7241.9 42.9 3-0.41 TJ1.062.13

HG9KF3 1.2746.2 46.4 31.35 TG0.190.88 L

JNMN3V -0.9541.4 41.5 3-1.13 LD0.110.78 L

K6NPFT -0.2542.9 43.3 3-0.21 TD0.690.74 L

K8V8DP -0.9241.5 42.2 3-0.76 EM0.861.56

KXRVGV 0.7645.1 45.0 30.66 EM0.091.74 L

L3HHW2 0.1443.7 42.3 3-0.70 LC1.691.79

M3X7PF -1.5140.2 40.0 2-1.89 XX0.310.40 L

M9GLY6 -0.9141.5 43.2 3-0.27 LD1.471.77

MFLAT7 0.1843.8 45.3 30.81 XX1.822.96 H

MPQEKM 0.4744.5 45.1 30.72 LD0.581.27

NDAUY6 -1.0041.3 43.9 30.10 LD2.291.23

U8728W 1.3546.3 46.3 31.34 CT1.151.69

UB9TLN 0.4044.3 44.8 30.54 TH0.700.94

UDBVA6 0.6444.8 44.5 30.38 LD0.621.31

V8Z7ZV -0.2742.9 42.8 3-0.46 EM1.051.85

VEZGHL 0.2243.9 43.8 30.06 LC0.181.56 L

VW37NQ -0.9541.4 40.9 3-1.42 EM0.481.65

WHBY4V 2.6549.1 * 48.4 32.37 * TG1.031.40

WKJBMH -0.8441.6 41.5 3-1.13 TD1.981.69

X3HJN2 -0.0843.3 43.0 3-0.37 LD0.642.35

X3JCJN -1.2040.9 40.6 3-1.58 LD1.041.60

XZDZGT 0.9545.5 44.3 30.31 LC1.412.08

Printed: September 24, 2018 Copyright © 2018 CTS, Inc8

Page 9: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 203

Report #587 (J)August 2018

Edgewise Compressive Strength by T839, Corrugated Board - EC11TAPPI Official Test Method T839

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

YBAGPV -0.0943.3 44.1 30.22 LY1.273.15 H

YZ84MA 0.3144.1 44.3 20.31 LC0.321.43

ZK8LBF 1.2746.2 46.3 31.31 LD0.511.55

ZPJMEY -0.4542.5 40.7 3-1.50 EN1.501.58

ZQDHUF -0.9141.5 41.6 3-1.05 TD0.241.43 L

ZZ2B6R -0.9941.3 41.9 3-0.90 TD0.641.41

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

43.44 43.71

2.15 1.97

42 43

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

1.69 1.82

Key to Instrument Codes Reported by Participants

CT Con-Ten EM Emerson 1200 Series

EN Emerson 2200 LC L&W Crush Tester 48

LD L&W Crush Tester 248 LY L&W 830

TB TMI Monitor/Compression Tester, Model 17-70 TD TMI Digital Crush Tester, Model 17-09

TG TMI Digital Crush Tester, 17-76 TH TMI Monitor/Compression Tester, Model 17-76

TJ TLS Compression Tester, Model CDM-5 TK TLS Compression Tester, Model 5184

TL Tech-Lab Systems Compression WK Zwick Z005 Crush Tester

XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc9

Page 10: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 205

Report #587 (J)August 2018

Bursting Strength (Mullen), 42 lb Linerboard - 42D3TAPPI Official Test Method T807

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2JTGCH 0.5105.6 106.3 106.9 106.3 106.3 105.8 164.4 5.2 2.0-1.13L L L -1.09 LAL

3RM2ZV 1.0113.9 114.9 115.9 113.7 114.6 115.9 129.8 11.6 2.71.85 1.73 AH

3TRTLG 1.3112.5 114.3 113.1 111.2 112.8 112.2 167.1 7.2 2.01.20L 0.72 LC

4RHYPG 7.399.0 115.0 111.2 113.4 109.7 105.1 1616.9 14.2 4.90.08XH -1.28 LCH

4RKNUE 2.1106.7 102.1 106.3 104.5 104.9 105.3 1610.2 11.0 2.3-1.64 -1.23 LA

843F8E 1.8 No Data No Data105.9 103.4 104.7 106.5 149.2 11.0 3.7-1.72 -0.90 LC

96BEER 3.5112.8 110.8 110.1 104.7 109.6 110.7 1613.2 11.0 3.40.07 0.28 TB

9BE7ZJ 2.9106.0 109.6 113.0 109.0 109.4 113.2 1610.3 12.2 5.3-0.01 0.97 LC

9ETZH2 1.5106.4 106.0 108.8 108.9 107.5 107.8 167.5 6.8 1.7-0.68 -0.52 TP

9U6EXD 0.4109.0 110.0 109.1 109.2 109.3 109.1 84.4 4.2 0.7-0.04L L L -0.15 LAL L

AYK3FP 3.1106.9 112.5 105.4 107.7 108.1 107.6 1610.3 11.3 3.0-0.47 -0.59 LA

CLLC49 6.0108.9 106.8 103.9 117.8 109.3 107.8 169.4 11.4 3.5-0.03 -0.52 LA

CW3WN6 0.8111.3 111.8 110.2 112.1 111.3 111.7 167.1 8.7 0.80.69 0.57 LAL

DAR9JF 3.0108.5 103.6 102.0 106.7 105.2 107.2 1611.4 13.1 3.1-1.52 -0.69 LC

DHJN9J 2.8110.5 110.0 110.5 115.9 111.7 109.3 1613.2 11.4 3.20.82H -0.11 TB

DLZVN7 0.1109.2 109.2 109.4 109.3 109.3 109.4 168.2 7.5 0.2-0.05 -0.09 LJL L

EEW63F 3.7110.3 106.6 110.2 102.5 107.4 116.3 1612.2 10.1 8.5-0.73 1.85 TB

EFQYJW 0.6107.0 108.4 107.5 107.7 107.7 108.5 167.3 6.4 0.9-0.64 -0.33 AHL

FGJAR4 3.3112.8 110.2 105.6 112.2 110.2 109.6 169.7 10.9 3.10.28 -0.02 AH

FN2L66 3.6107.5 104.6 99.2 105.9 104.3 104.2 1611.7 11.5 3.8-1.84* -1.54 LZ

FZWMQL 5.0114.9 111.2 103.8 106.0 109.0 109.6 1612.6 10.8 4.9-0.17 -0.03 LC

GAFJ8D 2.5109.0 103.1 105.3 104.8 105.5 106.5 1611.1 10.9 3.1-1.40 -0.90 LC

HCCVYV 4.1109.9 104.7 113.0 104.8 108.1 106.1 1610.0 10.2 3.5-0.48 -1.00 XX

K6NPFT 6.1106.6 118.7 105.1 109.9 110.1 110.1 415.2 15.2 6.10.23* 0.11 XX

L3HHW2 0.6109.3 110.3 108.9 109.5 109.5 111.3 1611.2 11.7 3.10.02 0.45 LA

LLWY2E 3.8104.9 108.4 103.3 111.8 107.1 106.9 1614.2 12.1 2.4-0.85 -0.78 LC

LNWCFR 8.4129.2 114.1 110.0 120.4 118.4 X 117.6 1612.5 13.4 6.73.22X * 2.23 * LCH

M9GLY6 2.4109.5 105.0 105.4 104.2 106.0 106.6 168.9 8.9 2.6-1.23 -0.88 LA

MLQ4VE 5.8121.1 113.9 114.8 106.9 114.2 115.4 1613.6 13.0 4.11.71X H 1.59 LA

NQCKF4 1.8110.9 114.0 110.2 113.4 112.1 111.2 1611.1 10.1 3.70.97 0.43 LC

NXZYP4 2.6107.9 113.8 110.3 112.7 111.2 112.2 1211.3 12.0 3.20.62 0.69 AX

PK9UVC 5.8106.9 119.0 117.0 119.2 115.5 * 114.1 1614.0 12.6 3.82.19*H * * 1.25 LZ

Q322KU 2.8116.9 119.8 122.0 123.2 120.5 X 115.8 1214.4 13.7 4.33.96* * X XH 1.70 LA

QPFP9K 4.5118.8 108.6 111.2 110.6 112.3 113.9 139.9 11.3 5.11.03* 1.17 LC

QPYLHZ 2.0107.1 107.8 108.1 111.5 108.6 107.1 1212.3 12.6 3.5-0.29 -0.73 LC

Printed: September 24, 2018 Copyright © 2018 CTS, Inc10

Page 11: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 205

Report #587 (J)August 2018

Bursting Strength (Mullen), 42 lb Linerboard - 42D3TAPPI Official Test Method T807

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

QXBKCB 1.2109.4 110.1 108.0 110.8 109.6 107.8 167.2 8.3 2.10.05 -0.52 LA

RJKHZW 3.1106.7 106.7 112.5 111.4 109.4 111.2 1611.3 12.1 3.4-0.03 0.44 LC

T2JRJT 4.9112.9 110.5 112.8 102.6 109.7 111.1 1310.9 12.0 4.00.10 0.41 LZ

TP4ZVJ 3.3114.9 114.5 115.9 121.5 116.7 * 118.8 168.0 69.1 22.32.61* 2.56 * AHH

U8728W 1.5114.6 114.4 117.6 114.6 115.3 * 114.0 1612.9 13.3 2.82.11* 1.22 XX

UB6BL6 5.8115.1 104.1 102.1 108.4 107.4 105.4 169.3 10.0 3.9-0.72 -1.20 LC

UVPEXV 1.6 No Data No Data110.4 108.1 109.3 109.7 93.7 4.2 1.7-0.07L L 0.00 XX

W7PHLP 1.5107.7 105.6 106.8 104.2 106.1 106.1 411.5 11.5 1.5-1.21 -1.01 LC

WJUX8K 4.0112.2 115.6 106.2 109.2 110.8 111.2 1610.8 10.1 3.90.49 0.41 AH

WNGRZC 0.7108.6 109.4 109.6 108.2 109.0 108.0 165.4 5.6 2.0-0.17L L -0.48 RE

X3HJN2 2.3111.0 111.9 107.2 107.9 109.5 106.9 1611.3 10.7 6.20.02 -0.78 AH

X3JCJN 3.1104.6 110.7 107.0 111.0 108.3 107.1 1610.3 11.0 3.9-0.40 -0.72 LC

X3M2NL 0.8108.9 108.9 107.9 109.9 108.9 107.6 1611.6 13.2 2.7-0.19 -0.58 LC

XWQGCP 4.8118.6 111.7 107.1 110.5 112.0 111.6 1610.2 12.3 5.20.91* 0.53 LA

XZDZGT 0.8107.9 106.9 107.0 108.7 107.6 103.6 1612.0 11.4 3.0-0.65 -1.69 AH

Y7WL2K 3.0111.1 112.7 106.4 112.8 110.8 111.1 1614.5 12.4 3.30.48H 0.39 LJ

YBAGPV 1.4111.2 113.9 110.8 111.5 111.9 112.5 1612.4 12.4 1.90.87 0.79 LZ

YYTUGU 1.8105.7 104.8 108.7 107.5 106.7 105.7 1610.6 10.9 2.4-0.99 -1.10 LB

ZK8LBF 5.5103.4 107.2 115.3 113.2 109.8 107.9 169.0 10.3 5.10.12 -0.50 LA

ZPN4EJ 1.6108.5 107.1 109.4 110.9 109.0 107.7 1611.3 11.1 2.7-0.16 -0.55 LA

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

109.76

3.53

10.68

52

0

3

109.99

4.16

10.94

54

1

0

108.90

3.97

10.83

52

2

1

109.86

4.30

10.42

53

1

1

109.43 109.68

2.79 3.57

10.78 14.32

3.31 4.73

53 55

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Analysis Notes

DHJN9J - Data appears to be switched between Analysis 205 and Analysis 207 for Week 1. Data switched by CTS.

QPYLHZ - Data appears to be switched between Analysis 205 and Analysis 207 for Week 1. Data switched by CTS.

Printed: September 24, 2018 Copyright © 2018 CTS, Inc11

Page 12: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 205

Report #587 (J)August 2018

Bursting Strength (Mullen), 42 lb Linerboard - 42D3TAPPI Official Test Method T807

Key to Instrument Codes Reported by Participants

AH Perkins Model AH AX Perkins Mullen Tester (model not specified)

LA L&W Bursting Strength Tester LB L&W Burst-O-Matic

LC L&W Autoline LJ L&W Bursting Strength Tester J-Type

LZ L&W (model not specified) RE Regmed/Mullen Tester

TB TMI Monitor/Burst 1000 TP Technidyne PROFILE/Plus

XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc12

Page 13: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 207

Report #587 (J)August 2018

Bursting Strength (Mullen), 35 lb Linerboard - 35E1TAPPI Official Test Method T807

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2JTGCH 0.690.1 89.1 90.6 89.9 89.9 88.5 124.0 4.5 3.9-0.81 -1.27 LA

3RM2ZV 2.499.4 97.6 103.3 100.2 100.1 X 97.9 88.1 8.5 3.23.06* X * 1.90 AH

4RHYPG 3.688.0 95.6 93.9 89.2 91.7 89.0 128.2 9.4 3.7-0.15 -1.09 LC

4RKNUE 2.389.0 92.4 94.5 91.6 91.9 90.9 127.8 7.3 3.1-0.08 -0.45 LA

843F8E 2.0 No Data No Data90.1 92.9 91.5 89.8 105.6 7.4 3.4-0.21 -0.85 LA

96BEER 4.893.2 90.4 92.5 82.7 89.7 92.7 129.2 9.8 3.7-0.91* 0.14 TB

9BE7ZJ 1.293.0 90.7 90.5 92.0 91.6 94.1 126.5 8.8 2.6-0.20 0.62 LC

9ETZH2 1.187.8 89.7 88.1 90.0 88.9 89.0 126.8 5.6 0.8-1.20 -1.11 TPL

9U6EXD 0.692.8 91.8 92.0 93.0 92.4 92.3 124.3 3.7 0.40.13L 0.02 LAL

AYK3FP 2.089.2 90.1 90.2 86.0 88.9 90.3 127.0 8.4 2.0-1.21 -0.65 LA

CLLC49 4.889.2 94.5 91.6 100.5 93.9 90.9 128.4 8.3 4.00.71* -0.46 LA

CW3WN6 0.591.6 92.3 92.3 92.7 92.2 92.4 127.1 6.8 1.00.05 0.03 LA

DAR9JF 2.592.1 89.2 91.5 95.2 92.0 92.2 127.0 8.2 2.6-0.02 -0.03 LC

DHJN9J 4.593.9 97.4 98.8 88.7 94.7 93.9 118.3 8.6 3.51.00 0.54 TB

DLZVN7 0.092.1 92.1 92.1 92.1 92.1 91.9 125.6 6.4 0.60.01 -0.13 LJL L

EEW63F 2.693.3 98.7 94.1 93.3 94.9 100.1 128.9 8.1 4.71.06 2.64 * TB

EFQYJW 0.691.0 90.4 89.6 90.1 90.3 89.7 126.2 5.5 1.0-0.68 -0.88 AH

FGJAR4 1.492.2 94.4 93.4 95.4 93.9 90.7 127.4 8.6 7.20.68 -0.55 AHH

FN2L66 2.791.1 88.8 86.0 85.0 87.7 86.6 127.6 8.7 2.8-1.65 -1.91 LA

FZWMQL 2.691.8 93.4 88.8 94.8 92.2 91.9 129.7 9.0 1.90.05H -0.11 LC

GAFJ8D 1.889.9 87.7 89.7 85.9 88.3 88.7 127.3 8.0 2.4-1.43 -1.22 LA

HCCVYV 2.292.5 87.4 91.4 90.1 90.4 95.7 128.4 8.8 8.1-0.65 1.16 XXH

K6NPFT 2.491.5 92.6 87.6 92.9 91.2 91.2 47.7 7.7 2.4-0.35 -0.38 XX

L3HHW2 1.494.5 93.6 96.0 92.6 94.2 95.3 129.2 8.9 2.80.80H 1.03 LA

LLWY2E 1.990.2 87.2 89.4 91.8 89.7 91.1 128.3 8.1 2.0-0.91 -0.40 LC

LNWCFR 2.392.5 90.1 95.5 93.5 92.9 94.6 127.9 8.5 7.20.32 0.78 LCH

M9GLY6 3.587.5 95.4 93.1 89.8 91.5 87.8 125.2 6.9 4.3-0.23L -1.51 LA

MLQ4VE 3.897.2 92.6 98.6 101.7 97.5 * 97.9 1210.8 9.1 2.22.07H * 1.89 LA

NQCKF4 2.594.9 96.1 92.4 98.3 95.4 95.4 129.6 9.2 3.91.27 1.05 LC

NXZYP4 5.0101.1 91.5 92.8 90.0 93.8 93.2 128.6 8.3 3.50.67XH 0.33 AX

PK9UVC 3.095.1 99.6 100.1 94.4 97.3 * 97.5 108.4 8.3 2.81.99* * 1.77 LZ

Q322KU 5.292.6 98.3 91.0 102.2 96.0 95.0 1210.5 9.7 4.11.51H * 0.94 LA

QPFP9K 2.293.5 88.3 89.7 90.9 90.6 93.6 119.9 9.4 3.4-0.56 0.44 LC

QPYLHZ 2.488.6 92.0 92.3 87.5 90.1 89.4 86.6 7.3 1.8-0.75 -0.96 LC

QXBKCB 2.390.1 87.8 89.0 93.3 90.0 91.4 126.3 7.1 2.7-0.77 -0.30 LA

Printed: September 24, 2018 Copyright © 2018 CTS, Inc13

Page 14: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 207

Report #587 (J)August 2018

Bursting Strength (Mullen), 35 lb Linerboard - 35E1TAPPI Official Test Method T807

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

RJKHZW 3.891.4 98.2 90.4 90.3 92.6 92.0 129.2 9.6 2.60.20 -0.10 LC

T2JRJT 1.695.4 95.9 95.0 92.2 94.6 93.0 128.5 9.6 2.10.97 0.25 LZ

TP4ZVJ 4.690.3 99.1 98.2 91.2 94.7 94.1 127.3 6.9 3.11.00 0.62 AH

U8728W 4.096.7 91.6 101.0 94.3 95.9 96.1 127.6 8.9 4.11.46* 1.30 XX

UB6BL6 2.189.6 93.9 89.3 90.0 90.7 88.6 128.3 8.3 3.4-0.52 -1.24 LC

UVPEXV 0.4 No Data No Data89.7 89.1 89.4 90.0 94.8 4.8 1.8-1.01 -0.77 XX

W7PHLP 1.992.7 88.8 92.6 90.0 91.0 91.0 48.0 8.0 1.9-0.40 -0.42 XX

WJUX8K 1.693.5 95.2 94.4 97.2 95.1 95.3 127.3 7.8 2.51.14 1.02 AH

WNGRZC 0.695.2 94.0 94.0 94.2 94.4 94.2 125.0 6.2 0.80.87 0.64 REL

X3HJN2 0.889.1 90.9 89.2 90.1 89.8 88.3 129.0 7.8 2.3-0.85 -1.34 AH

X3JCJN 3.789.8 95.5 86.6 91.7 90.9 90.7 127.4 8.5 3.2-0.44 -0.51 LC

X3M2NL 2.494.7 93.0 90.7 89.4 92.0 91.2 128.9 8.9 3.4-0.04 -0.35 LC

XWQGCP 0.794.8 95.3 93.7 94.9 94.7 94.7 129.1 9.0 1.81.00 0.82 LA

XZDZGT 1.488.2 91.3 88.5 88.8 89.2 88.8 127.0 8.2 1.7-1.09 -1.19 AH

Y7WL2K 2.493.2 93.1 88.3 90.2 91.2 92.7 89.9 9.0 2.5-0.33H 0.14 LJ

YBAGPV 2.097.5 95.5 100.3 98.1 97.8 * 96.3 128.4 8.8 2.82.19* * 1.36 LZ

YYTUGU 1.486.7 83.4 86.0 85.6 85.5 * 88.4 126.2 6.2 2.5-2.51* -1.30 LB

ZK8LBF 2.088.5 92.8 92.3 92.3 91.5 93.9 127.0 7.5 3.8-0.23 0.56 LA

ZPN4EJ 1.288.5 88.4 90.9 90.1 89.5 90.8 127.0 7.6 1.6-0.98 -0.51 LA

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

91.83

2.82

7.74

53

0

1

92.52

3.54

7.91

53

1

0

92.17

3.59

8.25

51

2

1

92.09

4.06

7.44

53

0

1

92.06 92.26

2.63 2.96

7.82 8.04

2.62 3.28

53 54

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Analysis Notes

DHJN9J - Data appears to be switched between Analysis 205 and Analysis 207 for Week 1. Data switched by CTS.

QPYLHZ - Data appears to be switched between Analysis 205 and Analysis 207 for Week 1. Data switched by CTS.

Printed: September 24, 2018 Copyright © 2018 CTS, Inc14

Page 15: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 207

Report #587 (J)August 2018

Bursting Strength (Mullen), 35 lb Linerboard - 35E1TAPPI Official Test Method T807

Key to Instrument Codes Reported by Participants

AH Perkins Model AH AX Perkins Mullen Tester (model not specified)

LA L&W Bursting Strength Tester LB L&W Burst-O-Matic

LC L&W Autoline LJ L&W Bursting Strength Tester J-Type

LZ L&W (model not specified) RE Regmed/Mullen Tester

TB TMI Monitor/Burst 1000 TP Technidyne PROFILE/Plus

XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc15

Page 16: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 215

Report #587 (J)August 2018

Ring Crush, 42 lb Linerboard - 42D3TAPPI Official Test Method T822

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2JTGCH 0.383.7 84.4 83.9 83.7 83.9 84.0 161.8 2.3 0.9-0.95L L L -0.94 TUL L

2M994B 2.687.5 82.1 84.7 82.1 84.1 84.6 164.3 4.1 2.2-0.92H -0.80 EM

3LVWYE 1.987.8 84.6 83.4 84.2 85.0 86.8 123.8 4.2 2.5-0.72 -0.27 XX

4RHYPG 2.490.1 89.5 94.6 92.8 91.8 90.0 163.8 3.7 4.40.72L 0.47 LC

4RKNUE 3.185.8 90.7 85.4 91.3 88.3 86.3 164.4 4.9 3.7-0.02H -0.39 LZ

843F8E 1.788.8 90.7 92.2 88.6 90.1 88.3 163.4 3.7 1.90.36 0.06 LD

8R7GB2 0.872.7 71.4 73.1 71.9 72.2 X 72.2 42.9 2.9 0.8-3.46X * * X -3.68 X THL

9BE7ZJ 1.188.0 85.9 87.3 88.3 87.4 86.0 163.9 3.8 2.1-0.21 -0.47 LD

9BTPJF 2.180.3 75.6 77.3 76.6 77.4 * 77.2 125.3 4.9 1.8-2.35* * -2.52 * LC

9ETZH2 1.586.5 88.9 85.5 87.9 87.2 89.1 163.0 3.7 1.6-0.26 0.26 TH

9U6EXD 0.188.5 88.4 88.7 88.7 88.6 89.0 81.9 2.4 0.90.05L L 0.23 LZL L

CLLC49 12.191.7 96.4 91.6 69.6 87.3 90.7 165.9 5.4 9.1-0.23XH 0.64 LCH H

CW3WN6 0.791.6 91.2 92.1 92.8 91.9 91.5 163.7 3.3 0.60.76 0.81 LDL

DAR9JF 5.094.8 85.7 84.9 84.0 87.4 90.0 158.3 7.8 5.2-0.22H H 0.47 LC

DFBFYY 0.985.3 84.5 86.5 85.8 85.5 85.4 162.8 3.2 1.9-0.61 -0.62 LC

DFVY47 2.270.0 74.0 72.7 74.9 72.9 X 71.7 165.7 4.4 4.9-3.32X * *H * -3.82 X MZ

DHJN9J 4.294.2 85.9 93.7 87.8 90.4 90.7 164.1 4.6 2.70.43L 0.62 LD

DLZVN7 0.187.6 87.5 87.8 87.7 87.6 88.8 164.4 4.2 0.9-0.16 0.19 LDL L

EBDA39 0.5 No Data No Data85.9 85.2 85.5 85.5 23.7 3.7 0.5-0.61 -0.58 EX

EEW63F 4.4103.9 95.8 103.5 96.4 99.9 * 102.1 163.8 4.6 3.92.47X L * 3.28 X LX

FD33CH 1.693.4 94.3 91.0 94.5 93.3 91.9 163.6 3.6 1.51.06 0.92 LD

FN2L66 1.987.8 85.7 87.5 83.8 86.2 86.5 163.6 4.0 2.8-0.47L -0.37 LD

GAFJ8D 1.086.5 86.2 84.2 85.6 85.6 83.7 163.4 3.8 2.5-0.59 -1.02 LC

HKU4K7 6.089.0 74.3 82.5 82.8 82.2 85.1 1412.9 8.2 5.6-1.33*H -0.67 MB

KXRVGV 2.883.8 78.9 85.3 81.7 82.4 82.3 163.8 4.2 2.3-1.28 -1.33 EM

L3HHW2 13.296.5 72.2 73.2 94.5 84.1 78.9 166.7 7.6 10.0-0.92* *H -2.12 * LCH H

LLWY2E 1.285.6 85.2 85.3 87.8 86.0 86.8 163.1 3.1 1.3-0.52 -0.27 LD

M9GLY6 3.182.1 85.5 83.6 89.3 85.1 86.0 163.3 3.5 1.9-0.70 -0.47 LD

MLQ4VE 0.492.1 92.9 93.0 92.3 92.6 93.1 164.0 4.1 2.90.90 1.19 LZL

MPQEKM 0.990.5 92.2 92.3 91.7 91.7 91.6 162.5 2.3 0.90.71 0.85 LD

NXZYP4 3.872.9 80.3 81.1 79.7 78.5 * 76.5 125.4 4.8 5.3-2.12X -2.70 * LC

PK9UVC 0.386.9 87.0 86.5 87.1 86.9 87.3 164.2 4.0 2.0-0.32 -0.16 LCL

Q322KU 0.4100.2 100.7 99.9 100.6 100.3 * 96.5 124.3 5.8 3.82.56* * * 1.99 * LDL

QPFP9K 2.190.6 89.8 93.1 88.0 90.4 90.9 133.3 3.6 2.10.42L 0.68 LD

QXBKCB 0.886.5 86.8 88.1 86.5 87.0 88.1 162.3 3.9 4.7-0.30L L 0.03 LD

Printed: September 24, 2018 Copyright © 2018 CTS, Inc16

Page 17: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 215

Report #587 (J)August 2018

Ring Crush, 42 lb Linerboard - 42D3TAPPI Official Test Method T822

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

TH937V 1.293.3 95.2 92.9 92.6 93.5 93.5 44.3 4.3 1.21.10 1.28 EM

TP4ZVJ 2.896.2 92.1 94.9 89.8 93.2 95.2 164.9 4.7 3.91.04 1.67 LZ

UB6BL6 3.490.6 87.3 89.0 95.1 90.5 90.5 164.7 4.3 3.80.46 0.57 LD

UE4QPL 0.395.4 95.8 95.2 95.8 95.5 95.7 123.5 3.8 2.51.54 1.80 LDL

UVPEXV 4.5 No Data80.0 86.5 77.8 81.4 82.1 104.0 3.6 3.6-1.49* -1.39 LD

WHBY4V 0.892.6 92.6 94.2 92.8 93.0 90.3 162.9 3.2 2.31.00L 0.54 TH

WJUX8K 2.788.4 95.0 91.8 92.2 91.8 88.3 153.7 6.1 6.90.74 0.06 LCH

WNGRZC 0.586.8 87.9 87.6 87.1 87.4 89.5 162.5 3.2 1.7-0.22 0.35 LZL

X3HJN2 1.583.7 87.0 84.1 84.2 84.8 85.9 163.3 3.8 1.7-0.78 -0.49 LD

X3JCJN 2.485.6 88.4 82.6 86.4 85.8 86.5 163.9 4.1 1.7-0.56 -0.35 LD

X3M2NL 2.090.8 88.3 92.7 88.7 90.1 90.8 164.1 4.6 1.40.37 0.65 LD

XZDZGT 0.989.4 90.1 91.4 91.1 90.5 90.5 164.4 4.4 1.70.45 0.58 LC

Y7WL2K 2.790.0 86.6 93.2 91.0 90.2 88.4 165.1 4.6 2.80.39 0.09 LD

YBAGPV 1.386.6 85.2 88.5 86.5 86.7 86.8 163.2 3.6 1.3-0.36 -0.29 LG

YYTUGU 2.495.8 97.2 92.5 92.6 94.5 92.6 164.8 4.3 2.31.32 1.06 LC

ZK8LBF 0.888.8 90.7 90.1 90.2 90.0 87.3 163.8 3.7 2.10.34 -0.16 LD

ZPJMEY 1.483.6 80.1 81.5 81.8 81.7 82.2 163.9 4.1 1.5-1.42 -1.36 EN

ZPN4EJ 0.491.1 91.2 90.7 90.4 90.9 91.4 164.5 4.1 1.60.53 0.78 LDL

ZZ2B6R 1.990.6 93.8 91.5 94.6 92.6 91.9 161.3 1.3 1.70.91L L L L 0.91 TD

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

88.97

4.26

3.77

50

0

4

87.43

6.34

5.05

54

0

0

87.88

6.28

4.63

53

1

0

88.44

5.10

3.93

50

2

2

88.37 88.02

4.66 4.28

4.41 4.35

3.36 3.34

52 51

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Key to Instrument Codes Reported by Participants

EM Emerson 1200 EN Emerson 2200

EX Emerson (model not specified) LC L&W Crush Tester 48

LD L&W Crush Tester 248 LG L&W 753

LX L&W 506 LZ L&W Crush Tester (model not specified)

MB Messmer Buchel K440 MZ Messmer Buchel (model not specified)

TD TMI Digital Crush Tester, Model 17-09 TH TMI Compression Tester, Model 17-76

TU TMI Universal Crush Tester (TMI K440) XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc17

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Containerboard Interlaboratory Testing ProgramAnalysis 217

Report #587 (J)August 2018

Ring Crush, 35 lb Linerboard - 35E1TAPPI Official Test Method T822

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2JTGCH 0.572.7 73.7 73.6 73.1 73.3 74.2 121.8 1.8 0.7-0.80L L -0.75 TUL L

2M994B 2.879.9 75.2 75.0 73.5 75.9 77.6 124.0 3.5 2.7-0.32 -0.04 EM

3LVWYE 1.478.0 75.2 78.1 78.0 77.3 78.3 103.9 3.7 2.9-0.06 0.10 XX

4RHYPG 0.979.1 80.6 80.5 78.9 79.8 80.2 123.1 3.4 2.50.38 0.49 LC

4RKNUE 3.171.9 79.6 75.6 75.5 75.6 74.5 123.5 4.7 5.9-0.37 -0.67 LZ

843F8E 1.879.4 82.6 79.7 82.9 81.1 80.5 122.7 3.1 1.30.63 0.56 LD

8R7GB2 0.964.9 66.9 65.7 66.6 66.0 * 66.0 42.4 2.4 0.9-2.12* * -2.42 * THL

9BE7ZJ 0.276.5 76.3 76.8 76.8 76.6 76.7 122.7 2.6 0.5-0.20L -0.22 LDL L

9BTPJF 0.969.4 68.1 67.2 68.0 68.2 67.5 84.4 4.2 1.4-1.73* -2.11 * LC

9ETZH2 0.778.7 77.2 78.5 78.4 78.2 77.9 123.0 3.3 1.30.09 0.02 TH

9U6EXD 1.378.9 82.0 79.6 79.8 80.1 80.2 121.6 2.4 1.00.43L L 0.49 LZ

BRV2CH 1.760.8 63.1 64.0 64.6 63.1 * 71.5 126.0 6.4 8.9-2.65XH *H *H * -1.29 MBH

CLLC49 12.287.2 85.8 86.2 62.1 80.3 81.6 125.1 5.7 11.40.48*H 0.78 LCH H

CW3WN6 0.480.9 81.5 81.6 81.0 81.3 81.1 123.6 3.1 0.50.65 0.67 LDL L

DAR9JF 1.779.8 76.9 76.7 76.1 77.4 78.8 125.4 5.4 2.8-0.06H 0.21 LC

DFBFYY 0.477.8 77.1 78.0 77.3 77.5 76.7 122.4 2.9 1.2-0.03 -0.23 LCL

DFVY47 2.766.2 65.3 60.1 64.7 64.1 * 60.7 123.8 4.7 5.1-2.48* * X * -3.52 X MB

DHJN9J 1.280.3 78.8 79.5 77.5 79.0 80.4 115.4 4.7 3.20.24H H 0.54 LC

DLZVN7 0.277.6 77.8 77.8 77.9 77.8 78.5 124.4 4.7 0.90.02 0.15 LDL L

EBDA39 0.4 No Data No Data75.1 75.7 75.4 76.5 43.0 3.9 1.3-0.41 -0.27 EX

EEW63F 4.894.5 84.7 86.0 92.5 89.4 * 89.9 125.6 4.9 2.82.13X H * 2.48 * LX

FD33CH 1.281.7 83.2 80.8 83.1 82.2 81.2 122.6 2.7 1.50.82 0.69 LD

FN2L66 1.477.8 74.6 76.4 77.4 76.6 77.6 123.6 3.9 1.8-0.21 -0.05 LD

GAFJ8D 1.874.3 72.2 76.5 74.8 74.5 75.7 123.1 3.2 3.2-0.59 -0.42 LC

HKU4K7 4.283.7 79.5 79.2 73.5 79.0 76.7 114.4 5.7 5.10.23H -0.23 MB

KXRVGV 1.372.1 69.4 72.2 71.3 71.3 71.2 124.1 4.2 1.6-1.17 -1.35 EM

L3HHW2 10.883.3 64.4 64.5 83.1 73.8 68.7 126.1 7.1 7.6-0.70*H *H -1.88 LCH H

LLWY2E 1.776.5 80.7 78.4 78.6 78.6 78.0 122.4 2.3 1.10.16L 0.05 LD

M9GLY6 1.478.0 79.5 76.2 76.7 77.6 76.0 122.6 2.9 1.5-0.01 -0.37 LD

MLQ4VE 1.083.1 84.2 82.4 84.5 83.6 80.1 124.1 5.2 8.11.07 0.47 LZH

MPQEKM 0.382.8 83.0 82.5 83.1 82.8 82.3 122.1 2.1 0.70.94 0.91 LDL L

NXZYP4 1.164.3 64.4 66.6 65.6 65.2 * 64.7 123.3 3.8 3.6-2.27* * * -2.69 * LC

PK9UVC 1.374.3 73.4 72.0 71.3 72.8 74.7 103.5 3.4 2.6-0.90 -0.63 LC

Q322KU 0.887.8 87.8 89.4 88.6 88.4 * 87.4 123.3 3.9 1.71.95* 1.96 * LD

QPFP9K 2.377.0 81.1 80.4 76.4 78.7 79.5 112.9 2.9 2.20.19 0.35 LD

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Containerboard Interlaboratory Testing ProgramAnalysis 217

Report #587 (J)August 2018

Ring Crush, 35 lb Linerboard - 35E1TAPPI Official Test Method T822

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

QXBKCB 0.779.5 79.1 78.0 79.5 79.0 78.6 122.6 2.7 1.20.24 0.17 LD

TH937V 2.882.0 80.8 83.9 77.2 81.0 80.3 73.0 3.3 2.60.59 0.51 EM

TP4ZVJ 1.180.6 80.7 81.4 83.0 81.4 82.8 124.8 4.4 3.30.68 1.02 LZ

UB6BL6 2.582.2 84.7 80.0 79.2 81.5 81.7 124.1 4.4 1.60.70 0.81 LD

UE4QPL 0.586.4 86.1 85.1 85.8 85.8 84.7 123.5 3.6 1.41.48 1.41 LD

UVPEXV 3.3 No Data66.5 71.5 72.6 70.2 70.3 103.2 3.1 3.5-1.36* -1.55 LD

WHBY4V 1.378.2 77.3 79.7 80.3 78.9 78.3 122.4 2.9 0.90.22L 0.10 THL

WJUX8K 4.574.2 82.2 78.6 84.4 79.9 78.3 114.0 6.2 8.30.40H 0.09 LCH

WNGRZC 1.178.6 78.7 78.8 76.4 78.1 81.6 123.5 3.0 2.80.08 0.78 LZ

X3HJN2 0.574.2 75.4 74.7 74.6 74.7 75.1 123.2 3.0 0.9-0.54 -0.57 LDL

X3JCJN 2.274.6 78.1 76.3 73.1 75.5 75.7 123.7 3.4 1.5-0.40 -0.43 LD

X3M2NL 2.580.0 81.5 83.8 85.7 82.7 81.7 123.0 2.9 1.60.92 0.81 LD

XZDZGT 1.183.7 82.5 80.9 82.4 82.4 82.2 122.8 3.5 0.90.85 0.90 LCL

Y7WL2K 1.682.0 81.6 78.8 82.4 81.2 80.3 123.4 3.2 3.20.64 0.51 LD

YBAGPV 1.180.0 80.1 81.6 79.1 80.2 79.5 123.1 3.2 1.20.45 0.35 LG

YYTUGU 1.388.9 85.7 87.1 86.6 87.1 84.6 123.8 4.0 2.31.71* 1.40 LC

ZK8LBF 1.577.8 78.7 80.9 77.8 78.8 75.6 123.1 3.5 3.60.21L -0.46 LD

ZPJMEY 1.777.0 74.9 73.2 76.1 75.3 75.4 124.1 3.4 1.5-0.43H -0.48 EN

ZPN4EJ 0.979.0 79.5 77.6 79.4 78.9 78.9 124.0 3.4 0.90.22 0.23 LDL

ZZ2B6R 2.679.7 75.6 80.3 75.3 77.7 73.5 121.6 2.1 3.70.01L L -0.89 TD

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

78.04

5.38

3.41

53

0

2

77.75

5.85

3.66

55

0

0

77.95

5.47

3.78

53

1

1

77.57

6.21

3.71

53

0

2

77.69 77.81

5.50 4.87

3.65 3.85

2.87 3.53

55 54

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

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Containerboard Interlaboratory Testing ProgramAnalysis 217

Report #587 (J)August 2018

Ring Crush, 35 lb Linerboard - 35E1TAPPI Official Test Method T822

Key to Instrument Codes Reported by Participants

EM Emerson 1200 EN Emerson 2200

EX Emerson (model not specified) LC L&W Crush Tester 48

LD L&W Crush Tester 248 LG L&W 753

LX L&W 506 LZ L&W Crush Tester (model not specified)

MB Messmer Buchel K440 TD TMI Digital Crush Tester, Model 17-09

TH TMI Compression Tester, Model 17-76 TU TMI Universal Crush Tester (TMI K440)

XX Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 223

Report #587 (J)August 2018

STFI, 42 lb Linerboard - 42D3TAPPI Official Test Method T826

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2UWMBQ 1.825.8 25.2 21.8 24.0 24.2 23.5 162.4 2.1 1.21.50*H *H 1.05 LHH

3LVWYE 10.644.0 23.4 22.4 23.1 28.2 X 24.1 123.0 2.3 6.35.30XH 1.76 XXH H

3RM2ZV 0.924.1 24.8 26.2 24.8 25.0 * 24.1 121.9 2.4 1.42.23X H 1.76 LU

3RNUWH 0.7 No Data No Data22.6 23.7 23.1 22.4 101.2 1.7 0.60.50L -0.21 LW

3TRTLG 0.322.5 21.7 22.1 22.2 22.1 23.0 161.8 1.8 1.0-0.47 0.46 LA

4RHYPG 4.020.5 27.4 29.7 27.4 26.2 X 23.3 161.6 2.0 2.63.42XL X X 0.84 LAH H

4RKNUE 0.520.8 21.2 21.7 20.7 21.1 20.9 161.5 1.8 0.9-1.44 -1.98 * LA

843F8E 0.5 No Data No Data23.0 22.3 22.7 22.5 142.0 1.8 0.70.04 -0.06 LA

8R7GB2 1.021.0 21.9 20.8 19.6 20.8 20.8 41.8 1.8 1.0-1.71* -2.14 * LH

96BEER 0.620.7 21.8 21.9 21.5 21.5 21.3 161.6 1.7 0.5-1.07 -1.54 LZ

9BE7ZJ 0.821.9 21.8 21.8 23.4 22.2 22.1 162.0 1.8 0.7-0.36 -0.62 LA

9ETZH2 0.321.8 22.4 22.3 22.3 22.2 22.2 161.3 1.2 0.2-0.39L -0.44 TTL

BAWTCX 1.520.8 24.3 22.7 23.6 22.9 22.6 162.2 2.2 1.00.23H 0.02 LY

BRV2CH 0.922.0 22.6 20.9 20.8 21.6 22.3 162.0 2.0 0.8-0.96 -0.32 BK

CW3WN6 0.222.5 22.7 22.6 22.8 22.6 22.6 161.4 1.3 0.20.02L -0.01 LAL

DAR9JF 1.021.5 23.8 22.3 23.2 22.7 22.8 151.9 2.2 1.00.09 0.27 LA

DHJN9J 0.423.0 23.4 23.1 23.8 23.3 23.5 161.9 1.9 0.40.67 1.05 LW

EBDA39 2.1 No Data No Data24.1 21.2 22.6 22.6 20.0 0.0 2.10.02L L 0.03 TT

EFQYJW 0.122.3 22.4 22.4 22.6 22.4 22.5 161.3 1.2 0.2-0.20L -0.12 TTL L

FD33CH 1.121.0 22.7 23.7 22.7 22.5 22.6 161.8 1.7 0.9-0.08 -0.01 LY

FN2L66 0.621.8 21.9 22.6 23.0 22.3 22.1 161.8 1.8 0.6-0.25 -0.56 LY

FZWMQL 0.822.6 22.6 24.4 23.3 23.2 22.4 161.7 1.9 1.10.56 -0.24 LA

GAFJ8D 0.222.6 22.5 22.3 22.3 22.4 22.1 161.4 1.6 0.6-0.17 -0.65 LA

HCCVYV 1.122.4 24.0 22.4 24.6 23.3 22.8 162.2 2.1 1.00.69 0.23 LH

HKU4K7 0.723.2 23.0 24.6 23.4 23.5 23.0 141.9 1.7 0.70.87* 0.46 LA

JBGA74 0.323.8 24.0 23.6 24.2 23.9 23.9 162.0 2.0 0.51.20 1.53 XX

JNMN3V 0.720.2 20.7 21.3 19.7 20.5 * 20.9 161.8 1.8 0.6-2.01* -1.99 * LH

L3HHW2 0.824.1 25.1 23.1 24.0 24.1 23.6 162.2 2.1 0.71.39 1.21 LU

LNWCFR 0.622.5 21.7 22.9 23.1 22.6 22.8 162.2 2.0 1.3-0.04 0.26 LA

M9GLY6 0.321.2 21.6 21.9 21.5 21.5 21.9 161.4 1.5 0.4-1.00L -0.84 BK

MFZW7E 0.423.4 24.1 23.9 23.4 23.7 23.7 41.7 1.7 0.41.05L 1.33 XX

MLQ4VE 0.521.1 21.3 21.7 22.2 21.6 21.8 161.8 1.9 0.4-0.96 -0.98 LW

MPQEKM 0.920.2 21.1 19.3 21.4 20.5 * 20.7 161.5 1.5 0.6-1.97X -2.22 * LY

NQCKF4 0.121.9 22.1 22.0 22.1 22.0 22.5 161.9 1.9 0.6-0.56 -0.06 LAL

NXZYP4 1.123.7 23.8 26.0 24.9 24.6 23.3 121.7 1.7 1.61.86X 0.83 XX

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Containerboard Interlaboratory Testing ProgramAnalysis 223

Report #587 (J)August 2018

STFI, 42 lb Linerboard - 42D3TAPPI Official Test Method T826

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

PACQT4 1.925.0 29.2 28.8 28.6 27.9 X 25.1 152.1 2.0 3.64.97* XH X X 3.02 X LWH H

PK9UVC 0.522.5 21.4 21.4 21.9 21.8 22.3 162.1 2.0 0.7-0.75 -0.31 LW

QPFP9K 1.221.8 19.9 22.5 20.3 21.1 21.3 131.9 2.0 1.1-1.38* -1.50 LZ

QPYLHZ 0.623.2 24.2 24.6 23.9 24.0 23.6 122.3 2.4 1.41.28*H 1.15 LA

QXBKCB 0.722.7 23.1 21.4 22.4 22.4 22.5 161.4 1.8 0.8-0.19L -0.07 LA

RJKHZW 0.524.1 23.6 23.0 23.2 23.5 23.2 161.8 1.8 0.50.82 0.73 LA

T2JRJT 1.326.3 24.9 23.6 23.7 24.6 25.2 132.2 2.2 4.61.90X 3.12 X LZH

UB6BL6 1.122.2 23.7 24.8 22.8 23.4 23.6 161.9 2.1 0.70.70* 1.22 LA

UE4QPL 0.123.1 23.3 23.2 23.4 23.2 23.6 121.5 1.6 1.00.60 1.15 LH

WJUX8K 1.023.6 24.0 21.8 22.9 23.1 22.4 163.7 3.2 1.00.43H H H -0.24 LH

X3HJN2 1.122.0 20.5 21.9 19.8 21.0 21.2 161.3 1.8 0.6-1.49L * -1.66 LU

X3JCJN 0.722.0 22.8 21.1 22.4 22.1 22.2 161.8 1.8 0.6-0.51L -0.43 LA

X3M2NL 0.621.7 22.6 23.2 22.9 22.6 23.2 162.0 1.9 0.60.00 0.68 LA

XWQGCP 1.022.4 23.3 24.0 24.8 23.6 23.6 162.1 1.9 1.00.95 1.14 LU

XZDZGT 0.621.1 22.5 21.2 21.9 21.7 22.2 162.0 2.0 0.5-0.88 -0.49 LU

Y7WL2K 1.324.6 21.8 22.0 23.0 22.8 23.2 161.9 2.0 1.50.23 0.69 LU

YBAGPV 0.521.6 21.8 21.7 20.7 21.4 21.6 161.8 1.7 0.4-1.09 -1.15 LU

YYTUGU 0.323.5 22.9 23.0 23.5 23.2 22.9 162.0 1.7 0.40.58H L 0.38 LW

ZK8LBF 1.720.3 23.7 24.2 22.7 22.7 22.8 161.4 1.9 1.30.11L L 0.27 LZH

ZPJMEY 0.421.1 21.9 21.6 21.1 21.4 21.1 161.5 1.9 0.5-1.10L -1.74 LY

ZPN4EJ 0.323.6 23.2 22.7 23.2 23.2 22.7 161.8 1.7 0.40.52 0.08 LY

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

22.38

1.28

1.85

54

0

2

22.73

1.23

1.96

52

2

2

22.54

1.03

1.77

48

3

5

22.65

1.29

1.91

53

2

1

22.61 22.60

1.06 0.84

1.88 1.90

0.86 1.27

53 53

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Printed: September 24, 2018 Copyright © 2018 CTS, Inc22

Page 23: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 223

Report #587 (J)August 2018

STFI, 42 lb Linerboard - 42D3TAPPI Official Test Method T826

Key to Instrument Codes Reported by Participants

BK Buchel Strip Compression Tester BK-155 LA L&W Autoline

LH L&W 282 LU L&W 52 without moisture correction(was 53)

LW L&W 53 with moisture correction (was 53M) LY L&W 152 without moisture correction

LZ L&W (model not specified) TT TMI Short Span Compression, 17-34 (MB K455)

XX Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 225

Report #587 (J)August 2018

STFI, 35 lb Linerboard - 35E1TAPPI Official Test Method T826

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2UWMBQ 0.423.9 24.1 23.3 23.5 23.7 23.5 121.6 1.5 0.81.53 1.48 LH

3LVWYE 0.221.7 22.0 22.2 22.0 22.0 22.4 102.0 1.9 0.8-0.16H 0.24 XX

3RM2ZV 0.623.4 24.5 23.6 24.6 24.0 23.6 81.8 1.9 0.71.83* 1.68 LU

3RNUWH 0.7 No Data No Data21.8 22.8 22.3 21.9 101.8 1.7 0.60.16 -0.37 LW

3TRTLG 0.722.7 22.0 21.9 21.1 21.9 22.2 121.5 1.8 1.2-0.26L -0.12 LA

4RHYPG 2.322.4 24.6 27.7 26.2 25.2 X 23.0 122.0 1.9 2.13.04H X X 0.88 LAH H

4RKNUE 0.520.7 20.6 21.3 20.1 20.7 21.2 121.8 1.6 0.8-1.49 -1.23 LA

843F8E 0.6 No Data No Data23.2 22.4 22.8 22.5 101.2 1.4 0.60.62 0.32 LW

8R7GB2 0.521.0 20.6 21.0 19.9 20.6 20.6 41.6 1.6 0.5-1.52* -1.96 * LH

96BEER 0.620.3 21.5 21.4 21.7 21.2 21.1 121.5 1.4 0.5-0.95 -1.37 LZ

9BE7ZJ 0.521.2 22.2 21.8 22.4 21.9 22.2 121.7 1.6 0.5-0.26 -0.12 LA

9ETZH2 0.221.9 21.7 21.5 21.7 21.7 21.6 121.2 1.1 0.2-0.47L -0.81 TT

BAWTCX 1.221.0 23.7 22.7 23.3 22.7 23.5 121.6 1.9 1.10.51 1.46 LY

BRV2CH 0.219.5 19.8 19.4 19.7 19.6 * 21.3 121.7 1.7 1.5-2.54* * * -1.13 BKH

CW3WN6 0.222.1 22.4 22.0 22.2 22.2 22.1 121.3 1.4 0.10.00L -0.20 LAL

DAR9JF 1.321.7 23.8 23.9 24.8 23.6 23.1 121.7 1.7 1.11.37* 1.00 LAH

DHJN9J 0.622.3 22.5 22.7 23.7 22.8 23.0 111.7 1.6 0.60.65 0.88 LW

EBDA39 0.8 No Data No Data21.7 22.8 22.3 22.2 40.0 0.0 0.40.10L L -0.05 LZ

EFQYJW 0.321.9 21.3 22.0 22.0 21.8 21.9 121.0 1.0 0.3-0.38L L -0.45 TT

FD33CH 0.421.5 22.3 22.1 21.9 22.0 22.0 121.7 1.6 0.3-0.20 -0.35 LY

FN2L66 0.422.0 21.4 21.8 22.5 21.9 21.9 121.6 1.5 0.4-0.24 -0.40 LY

FZWMQL 0.422.4 23.1 23.3 23.0 23.0 22.2 121.5 1.7 0.70.78 -0.01 LA

GAFJ8D 0.721.7 20.1 20.3 20.4 20.6 21.2 121.4 1.7 0.7-1.52L -1.25 LA

HCCVYV 0.622.2 23.7 23.1 23.0 23.0 23.0 122.0 1.9 0.50.84 0.89 LH

HKU4K7 0.822.2 20.5 21.5 22.2 21.6 22.0 111.9 1.7 1.3-0.55 -0.33 LA

JBGA74 0.822.7 24.0 22.0 22.9 22.9 23.5 121.6 1.6 0.70.72 1.48 XX

JNMN3V 0.421.1 20.3 20.4 21.1 20.7 21.1 81.5 1.5 0.6-1.44 -1.43 LH

L3HHW2 0.823.6 23.9 22.2 22.7 23.1 23.4 121.5 1.7 0.60.94 1.44 LU

LNWCFR 0.422.1 21.3 21.9 22.1 21.9 22.0 121.5 1.6 0.3-0.31 -0.27 LA

M9GLY6 0.221.1 20.8 21.3 21.2 21.1 21.1 121.5 1.3 0.4-1.06 -1.36 BK

MFZW7E 0.421.8 21.6 22.4 21.5 21.8 21.8 41.8 1.8 0.4-0.33 -0.50 XX

MLQ4VE 0.121.3 21.3 21.4 21.6 21.4 21.5 121.2 1.6 0.3-0.76 -0.92 LW

MPQEKM 0.620.1 20.6 19.2 20.6 20.1 * 20.5 121.4 1.4 0.5-2.04* * -2.06 * LY

NQCKF4 0.521.8 22.8 22.6 22.0 22.3 22.4 121.7 1.6 0.50.14 0.20 LA

NXZYP4 0.423.5 24.2 23.8 23.1 23.6 23.0 121.7 1.5 1.01.46 0.93 XX

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Containerboard Interlaboratory Testing ProgramAnalysis 225

Report #587 (J)August 2018

STFI, 35 lb Linerboard - 35E1TAPPI Official Test Method T826

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

PACQT4 1.724.7 28.8 27.4 26.8 26.9 X 25.8 121.6 1.7 2.64.73* X X X 4.28 X LWH H

PK9UVC 0.822.8 21.2 21.0 21.1 21.5 22.0 101.7 1.7 0.8-0.64 -0.36 LW

QPFP9K 0.321.2 21.1 21.4 21.7 21.3 21.5 111.5 1.8 0.7-0.81 -0.87 LZ

QPYLHZ 0.223.2 23.3 23.6 23.2 23.3 23.0 81.3 1.5 0.51.14L L 0.86 LA

QXBKCB 0.222.0 21.7 21.7 22.0 21.9 22.0 121.9 1.6 0.5-0.31H -0.32 LA

RJKHZW 0.323.5 23.4 23.2 22.9 23.2 23.1 121.9 1.7 0.61.05 0.99 LA

T2JRJT 1.626.4 24.4 23.1 23.1 24.3 * 24.1 122.2 1.9 1.12.08XH H 2.24 * LZH

UB6BL6 1.121.8 22.9 22.3 20.2 21.8 22.3 122.0 1.8 0.7-0.35 0.03 LA

UE4QPL 0.122.7 23.0 22.8 22.9 22.8 22.8 121.5 1.5 0.30.67 0.70 LH

WJUX8K 0.623.5 23.6 22.3 23.2 23.2 22.5 113.3 3.4 1.20.99H H H H 0.24 LH

X3HJN2 0.221.2 21.0 21.5 21.1 21.2 21.3 121.1 1.5 0.3-0.97L -1.21 LU

X3JCJN 0.821.4 22.6 20.7 22.1 21.7 22.0 121.5 1.5 0.7-0.46 -0.31 LA

X3M2NL 1.022.1 21.8 23.8 21.7 22.3 22.7 121.8 1.5 0.60.18 0.51 LA

XWQGCP 0.623.2 24.1 24.4 23.4 23.8 23.7 121.7 1.8 0.61.58* 1.75 LU

XZDZGT 0.322.7 22.1 22.3 22.2 22.3 22.3 121.6 1.6 0.40.16 0.10 LU

Y7WL2K 0.323.4 23.0 23.7 23.2 23.3 23.1 121.6 1.8 0.41.16 1.03 LU

YBAGPV 0.321.9 21.2 21.3 21.8 21.6 21.5 121.6 1.5 0.3-0.59 -0.96 LW

YYTUGU 0.422.2 23.0 23.1 23.0 22.8 22.8 121.2 1.3 0.40.64L 0.61 LW

ZK8LBF 0.422.6 21.8 22.6 22.1 22.3 22.2 121.6 1.7 0.60.11 -0.08 LZ

ZPJMEY 0.320.8 21.3 21.4 21.4 21.2 21.1 121.7 1.6 0.3-0.92 -1.34 LY

ZPN4EJ 0.523.0 22.0 22.2 22.0 22.3 22.4 121.7 1.7 0.40.13 0.17 LU

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

22.10

1.02

1.64

55

0

1

22.27

1.29

1.71

53

2

1

22.12

1.11

1.60

51

3

2

22.15

1.10

1.69

53

2

1

22.16 22.25

1.01 0.83

1.66 1.67

0.61 0.73

54 55

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Printed: September 24, 2018 Copyright © 2018 CTS, Inc25

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Containerboard Interlaboratory Testing ProgramAnalysis 225

Report #587 (J)August 2018

STFI, 35 lb Linerboard - 35E1TAPPI Official Test Method T826

Key to Instrument Codes Reported by Participants

BK Buchel Strip Compression Tester BK-155 LA L&W Autoline

LH L&W 282 LU L&W 52 without moisture correction (was 53)

LW L&W 53 with moisture correction (was 53M) LY L&W 152 (was 52M)

LZ L&W (model not specified) TT TMI Short Span Compression, 17-34 (MB K455)

XX Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 228

Report #587 (J)August 2018

Roughness - Stylus Method, 56 lb Linerboard - 56ATAPPI Official Test Method T575

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

3LVWYE 4.09225.3 X 232.7 43.55 X EV22.1927.53 H

4RHYPG 1.69190.8 185.5 41.12 LA4.1120.08

4RKNUE 0.44172.9 150.2 4-0.70 EV15.8411.58

843F8E 0.31171.0 175.8 30.61 LA5.2714.44

96BEER -0.82154.8 157.4 4-0.34 EV7.363.85 L

BNUXMG -1.45145.7 149.2 3-0.76 EV3.5513.78

BRV2CH 1.79192.3 204.5 42.09 * EV11.2420.67

CW3WN6 0.02166.9 165.9 40.10 XX0.8020.87 L

DAR9JF -1.67142.5 142.7 4-1.09 LA20.8022.09 H

FN2L66 1.04181.5 178.6 30.76 EV3.9618.64

HKU4K7 0.89179.3 188.5 41.27 LA8.7225.17

L3HHW2 -1.65142.8 133.1 4-1.59 EV8.658.48

MLQ4VE 1.18183.5 175.7 40.61 EV5.6714.41

NQCKF4 -0.20163.7 171.9 40.41 LA11.6322.43

PK9UVC 0.02166.8 170.3 40.33 XX4.4216.67

Q322KU -1.12150.4 150.1 3-0.71 EV7.3016.44

QPFP9K -0.59158.1 152.1 4-0.61 LA7.7015.36

QPYLHZ -0.61157.8 156.6 3-0.37 LA3.4019.50

T2JRJT 0.26170.3 174.8 30.56 XX4.0022.61

UB6BL6 -0.10165.2 161.2 4-0.14 LA5.6322.08

WJUX8K -3.36118.2 X 116.7 4-2.43 * EV8.0011.23

X3HJN2 0.67176.2 178.0 40.73 EV1.3315.19 L

XWQGCP -0.57158.4 156.3 4-0.39 EV3.8220.10

ZPJMEY 0.46173.2 174.5 40.55 EV4.637.78 L

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

166.54 163.89

14.37 19.39

22 23

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

17.74 8.21

Key to Instrument Codes Reported by Participants

EV Emveco Microgage Model 210-R LA L&W Autoline

XX Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 229

Report #587 (J)August 2018

Roughness - Sheffield Method, 42 lb Linerboard - 42D3TAPPI Official Test Method T538

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

3TRTLG -0.06364.3 365.4 40.10 XX0.875.58 L

QXBKCB 1.28374.9 368.7 40.44 LA6.539.61

TP4ZVJ -5.18323.7 X 349.7 4-1.46 TS17.9497.88 HH

W7PHLP -1.32354.3 352.9 4-1.14 LA1.649.57

X3JCJN -1.22355.1 356.7 4-0.77 LA1.329.99

X3M2NL 0.74370.6 374.1 40.98 LA3.229.32

XZDZGT 0.76370.8 371.7 40.74 XX3.176.20

ZK8LBF -0.18363.3 375.5 41.12 XX8.9416.89 H

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

364.77 364.34

7.93 9.98

7 8

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

10.18 7.66

Key to Instrument Codes Reported by Participants

LA L & W Roughness Sheffield - Autoline TS TMI Monitor/Smoothness

XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc28

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Containerboard Interlaboratory Testing ProgramAnalysis 231

Report #587 (J)August 2018

Internal Bond, 36 lb Linerboard - 36ZTAPPI Official Test Method T569

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

3TRTLG -1.27140.6 128.9 4-1.56 SC23.195.68

3YKXEL -0.51155.4 157.2 4-0.24 TM12.094.16

4RHYPG 1.35192.0 205.9 42.03 * SC15.7251.43 H

4RKNUE -0.09163.8 155.2 4-0.33 TM5.688.58

843F8E 1.27190.4 182.9 40.96 HY28.9312.86

9BE7ZJ -0.33159.0 172.9 40.49 TM11.991.73 L

DAR9JF 0.99185.0 168.3 40.27 SC39.1917.68 H

FN2L66 0.75180.2 181.7 40.90 XX11.714.87

GAFJ8D -0.18162.0 156.9 4-0.25 TM4.246.36

L3HHW2 -1.04145.2 147.6 4-0.69 TM6.1011.43

LLWY2E 1.10187.0 181.0 40.87 SC5.396.17

NXZYP4 -1.74131.3 124.1 3-1.78 SC6.597.85

Q322KU 0.40173.4 173.1 30.50 HY14.2018.62

QXBKCB 0.79181.0 178.8 40.76 SC2.625.84 L

RJKHZW -0.05164.6 163.5 40.05 TM5.006.31

T2JRJT -1.68132.4 138.4 3-1.12 TM20.086.69

X3HJN2 -0.50155.6 154.0 4-0.39 TM5.777.54

X3M2NL -5.2662.2 X 64.5 4-4.56 X LZ4.221.60 L

XWQGCP -1.08144.4 132.1 4-1.41 TM14.922.74 L

XZDZGT 1.02185.5 188.4 41.21 HY6.268.00

Y7WL2K 0.79181.0 156.7 4-0.27 HZ33.0211.85

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

165.49 162.36

19.64 21.46

20 20

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

14.62 16.98

Consensus By Method

Test Method Group MeanSD btwnGroup

Difference from Grand Mean Labs Included

Scott Bond Type 163.05 19.67 2.44 17

Modified Scott Bond Mechanics 187.97 3.44 22.48 2

Analysis Notes

RJKHZW - Data appears to be reported in the wrong unit. Data corrected by CTS.

X3M2NL - Method used is not covered in this test. Data excluded from consensus calculation.

Printed: September 24, 2018 Copyright © 2018 CTS, Inc29

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Containerboard Interlaboratory Testing ProgramAnalysis 231

Report #587 (J)August 2018

Internal Bond, 36 lb Linerboard - 36ZTAPPI Official Test Method T569

Key to Instrument Codes Reported by Participants

HY Huygen Digitized Scott Internal Bond Tester HZ Huygen Internal Bond Tester with AccuPress

LZ L&W (model not specified) SC Scott Internal Bond Tester (Manual)

TM TMI Monitor/Internal Bond Tester XX Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 234

Report #587 (J)August 2018

COF Inclined Plane (Slide Angle), 56 lb Linerboard - 56ATAPPI Official Test Method T815

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV

3TRTLG 0.2527.8 27.1 40.07 2.641.30

4RHYPG 1.3231.0 30.6 41.27 1.031.10

4RKNUE -0.0826.8 29.4 40.84 3.264.76

843F8E -0.6725.0 24.1 4-0.97 1.172.00

96BEER -0.8124.6 24.8 4-0.73 1.001.14

9BE7ZJ -0.6525.1 22.6 4-1.46 2.092.55

CW3WN6 -0.2826.2 26.3 4-0.20 0.260.84 L

DAR9JF -1.8021.6 21.8 4-1.76 0.720.89

DHJN9J 1.3131.0 28.7 40.62 2.093.54

FN2L66 -2.5919.2 * 20.6 4-2.14 * 1.462.17

HCCVYV 0.3828.2 27.6 40.23 1.453.90

JBGA74 -0.2826.2 28.0 40.38 2.755.23 H

L3HHW2 0.4228.3 28.2 40.44 0.844.71

LNWCFR 1.3131.0 30.0 41.06 1.613.00

MLQ4VE -0.0127.0 26.2 4-0.25 1.063.00

NQCKF4 0.7129.2 28.6 40.59 1.621.62

PK9UVC -0.0826.8 26.0 4-0.32 1.962.77

QG4NVW 1.3431.1 31.6 41.61 1.241.85

T2JRJT -1.1623.5 22.6 3-1.47 1.260.60 L

X3HJN2 -0.0826.8 28.6 40.59 3.443.42

X3M2NL -0.7124.9 27.5 40.20 4.111.02 H

XWQGCP 0.1927.6 27.0 40.05 2.913.71

XZDZGT 0.1527.5 25.5 4-0.46 1.441.15

ZK8LBF 1.6131.9 31.5 41.58 2.800.42 L

ZPJMEY 0.2027.6 27.6 40.24 1.283.30

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

27.04 26.89

3.03 2.92

25 25

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

2.77 2.05

Key to Instrument Codes Reported by Participants

ZZ Instruments No Longer Tracked

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Containerboard Interlaboratory Testing ProgramAnalysis 237

Report #587 (J)August 2018

Air Resistance, 36 lb Linerboard - 36ZTAPPI Official Test Method T460

WebCode Mean SD

Monthly Results

CPV

Cumulative Results

Mean SD Months MonthsCPV Inst

3LVWYE -0.1349.5 49.4 4-0.08 LW1.671.82

4RHYPG 1.4855.9 53.1 40.75 LA1.913.40

4RKNUE 0.0550.2 51.3 40.34 LP0.932.08

843F8E 0.0050.0 53.5 40.86 LP2.391.80

96BEER 0.0450.2 42.3 4-1.72 LP15.561.79 H

9BE7ZJ 0.7553.0 51.9 40.49 LA1.192.27

9U6EXD 0.2551.0 49.9 20.02 XX1.563.43

AXNJFA -0.1749.4 49.0 4-0.18 LP0.462.04 L

BRV2CH 0.4651.9 51.4 40.37 XX0.641.16 L

CW3WN6 0.7653.1 52.7 40.67 LA1.091.32

DAR9JF -1.1645.4 41.7 4-1.86 LA6.592.22

DHJN9J -0.7647.0 48.5 4-0.29 LP1.232.62

FN2L66 0.2451.0 51.7 40.43 LP0.701.83

JBGA74 -2.4140.4 * 41.0 4-2.01 * LA0.621.65 L

JMXALX -1.8642.6 48.1 4-0.40 XX3.811.67

L3HHW2 0.8553.4 53.6 30.87 LA0.141.42 L

MLQ4VE -3.4536.2 X 35.4 4-3.30 X XX1.704.64 H

MPQEKM -0.3648.6 48.8 4-0.24 LP0.311.51 L

QG4NVW 0.6252.5 55.0 41.20 GA4.511.80

QXBKCB 1.2755.1 55.2 41.24 LA0.212.70 L

T2JRJT -1.8342.7 40.1 3-2.22 * TD7.483.97 H

UB6BL6 0.3151.2 51.1 40.30 LA0.962.09

UB9TLN 0.8053.2 52.1 40.53 TL1.823.04

UVPEXV -0.5647.8 49.2 4-0.15 GG3.542.70

X3M2NL 1.1154.4 53.8 40.91 LA0.862.51

XWQGCP -1.2445.1 44.0 4-1.32 LA1.841.80

XZDZGT 0.8753.5 52.7 40.65 TP0.914.17 H

ZK8LBF 0.6152.5 53.5 40.84 XX2.113.05

Consensus (All Labs) Results

Month Mean

Avg SD

SD btwn Labs

Labs Incld

50.02 49.80

4.00 4.36

27 27

Grand Mean

Avg SD Months

SD btwn Labs

Labs Incld

2.42 3.96

Printed: September 24, 2018 Copyright © 2018 CTS, Inc32

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Containerboard Interlaboratory Testing ProgramAnalysis 237

Report #587 (J)August 2018

Air Resistance, 36 lb Linerboard - 36ZTAPPI Official Test Method T460

Key to Instrument Codes Reported by Participants

GA Gurley Precision #4340 Automatic Densometer GG Gurley Precision #4320 Densometer

LA L&W Autoline LP L&W Air Permeance Tester SE 166

LW L&W Gurley Densometer, Oil Flotation TD TMI Gurley Densometer

TL Teledyne Gurley Densometer #4110, Oil Flotation

TP Technidyne Profile/ plus Roughness & Porosity

XX Instrument make/model not specified by lab

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Containerboard Interlaboratory Testing ProgramAnalysis 240

Report #587 (J)August 2018

Flat Crush Strength (CMT), 26 lb Corrugating Medium - CM92TAPPI Official Test Method T809

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2JTGCH 0.262.8 62.5 62.4 62.8 62.6 62.7 161.9 2.1 1.40.96L 1.11 TUL

2UWMBQ 1.063.2 61.4 62.1 60.9 61.9 61.9 163.7 3.3 1.00.69 0.70 LD

3K32HX 0.460.2 61.0 60.4 60.7 60.6 60.4 163.8 3.3 0.50.21 -0.18 LCL L

3K7HHG 1.562.6 60.0 60.1 59.2 60.5 60.1 162.9 2.8 1.60.17 -0.36 EM

3LVWYE 10.042.6 53.2 33.2 54.6 45.9 X 50.0 123.6 3.9 7.9-5.21X * X X -6.08 X XXH H

843F8E 0.857.8 58.2 57.4 59.2 58.1 64.8 123.2 3.0 9.9-0.69 2.31 * LDH

8HHPPA 0.359.7 60.5 60.1 59.9 60.1 59.9 161.9 2.2 0.90.01 -0.44 THL

8R7GB2 1.253.3 54.7 52.3 52.1 53.1 * 53.1 42.6 2.6 1.2-2.56* X X -4.31 X TH

96BEER 1.458.0 59.8 60.9 60.9 59.9 58.8 163.3 3.1 1.5-0.04 -1.05 LZ

AXNJFA 0.960.7 60.9 60.5 62.5 61.1 61.4 162.8 2.8 1.20.42 0.42 LD

BRV2CH 2.058.1 55.0 59.4 58.8 57.8 60.0 165.5 4.6 2.8-0.81H H -0.40 MB

CW3WN6 0.161.2 61.4 61.3 61.5 61.3 61.0 162.1 2.0 0.50.49 0.17 LDL L

DFVY47 1.875.2 71.1 73.3 72.1 72.9 X 71.5 164.8 4.8 3.84.78X X XH XH 6.14 X MB

DHJN9J 0.763.8 64.0 63.1 62.6 63.4 61.8 163.0 3.2 2.01.24 0.63 LD

DLZVN7 0.360.2 60.8 60.9 60.4 60.6 60.8 163.7 3.2 0.60.21 0.07 LDL L

EBDA39 0.1 No Data No Data54.9 54.7 54.8 * 54.8 23.6 3.6 0.1-1.93 -3.35 X EM

EFQYJW 1.461.8 58.9 60.4 59.0 60.0 60.1 164.5 5.0 2.00.01 -0.34 TG

FD33CH 1.060.4 59.3 61.7 60.6 60.5 61.9 163.0 2.9 1.90.19 0.67 LD

FN2L66 0.7 No Data58.4 59.8 59.3 59.2 59.4 153.3 3.2 2.8-0.32 -0.76 LZ

FZWMQL 17.160.5 65.0 59.4 27.9 53.2 * 61.7 168.4 7.4 9.7-2.52H H H X 0.55 XXH H

GAFJ8D 1.959.0 62.8 58.6 59.3 59.9 57.4 162.8 2.7 2.5-0.03 -1.89 LC

GBM6C6 1.264.8 63.9 66.5 64.2 64.9 67.7 164.2 4.1 2.51.79* * 3.99 X LC

HKU4K7 2.252.6 56.8 56.7 57.0 55.8 58.5 142.2 3.3 2.9-1.56* * -1.25 MB

JMXALX 1.4 No Data60.5 63.3 62.2 62.0 60.1 153.2 3.2 1.50.73 -0.36 LD

KKHE96 1.361.0 63.9 61.3 62.1 62.1 61.7 163.2 3.1 1.60.76 0.56 LC

L3HHW2 5.468.6 56.5 58.1 59.3 60.6 59.8 163.0 3.7 3.10.23X -0.52 LC

LBFCRE 0.560.0 60.5 59.9 60.9 60.3 60.3 163.4 3.0 0.50.12 -0.22 LDL L

LNWCFR 1.663.3 63.9 65.9 62.0 63.8 62.7 162.5 2.9 1.61.39* 1.12 LD

NXZYP4 1.157.8 56.9 58.0 59.4 58.0 58.4 123.0 3.4 1.7-0.73 -1.32 LC

QPFP9K 2.057.4 52.9 56.1 54.2 55.1 56.2 133.8 3.7 1.8-1.80* * X -2.57 * LD

RJKHZW 1.763.2 61.3 60.2 59.2 61.0 62.1 163.1 3.7 1.70.35 0.79 LC

TCK9FP 0.160.4 60.4 60.4 60.1 60.3 60.5 161.1 1.3 0.20.12L L L L -0.11 LDL L

UE4QPL 1.260.9 59.2 60.3 62.0 60.6 61.5 122.7 3.0 1.80.22 0.48 LD

WNGRZC 0.658.2 59.5 59.5 58.6 58.9 59.4 162.0 2.1 0.6-0.40 -0.72 XXL

X3HJN2 0.856.9 57.7 57.8 58.8 57.8 59.1 163.1 3.4 1.7-0.82 -0.88 LD

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Containerboard Interlaboratory Testing ProgramAnalysis 240

Report #587 (J)August 2018

Flat Crush Strength (CMT), 26 lb Corrugating Medium - CM92TAPPI Official Test Method T809

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

X3M2NL 1.955.1 53.5 57.5 57.1 55.8 53.2 162.7 2.8 2.0-1.56* * -4.22 X LD

XWQGCP 4.265.2 56.4 56.7 61.1 59.9 59.2 163.6 3.4 2.9-0.06 -0.83 XX

XZDZGT 0.3 No Data60.6 61.2 60.8 60.8 61.4 153.5 3.7 1.40.30 0.42 LCL

Y7WL2K 2.758.6 62.2 62.5 65.2 62.1 61.6 166.4 6.7 2.50.78H H H * 0.51 LC

YBAGPV 1.159.8 60.6 61.4 58.9 60.2 62.5 163.9 3.3 1.80.06 1.01 LZ

YC3C7C 0.161.1 60.8 60.9 60.9 60.9 61.4 82.0 2.2 0.70.34 0.41 TML L

YJKMHR 1.962.9 63.6 65.2 67.3 64.7 63.9 83.9 3.6 1.81.75* X 1.79 LD

YYTUGU 1.262.0 64.6 62.7 62.3 62.9 63.0 163.5 3.0 0.91.07 1.29 LD

ZK8LBF 0.957.7 59.2 59.6 59.6 59.0 59.0 162.9 2.8 1.1-0.36 -0.97 LZ

ZPJMEY 2.156.8 60.0 60.6 61.8 59.8 58.3 163.4 3.0 2.0-0.08 -1.35 EN

ZPN4EJ 0.963.1 61.0 61.5 61.8 61.9 61.1 163.5 3.2 1.20.68 0.24 LD

ZZ2B6R 2.061.5 65.7 62.6 61.3 62.8 62.9 161.2 1.0 2.01.02L L L 1.26 TD

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

59.95

2.87

3.89

44

0

3

59.98

3.24

3.48

46

0

1

60.53

2.27

3.35

43

1

3

60.60

1.78

3.19

37

6

4

60.01 60.69

2.71 1.76

3.49 3.41

3.01 2.76

45 41

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Key to Instrument Codes Reported by Participants

EM Emerson 1200 Series EN Emerson 2200 Series

LC L&W Crush Tester 48 LD L&W Crush Tester 248

LZ L&W Crush Tester (model not specified) MB Messmer Buchel K440

TD TMI Digital Crush Tester, Model 17-09 TG TMI Compression Tester, Model 17-10

TH TMI Compression Tester, Model 17-76 TM TMI/Hinde & Dauch

TU TMI Universal Crush Tester (TMI K440) XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc35

Page 36: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 250

Report #587 (J)August 2018

Fluted Edge Crush Strength (CFC), 26 lb Corrugating Medium - CM92TAPPI Official Test Method T843

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

3K32HX 0.472.1 72.6 73.0 72.8 72.6 73.3 163.6 3.2 0.7-0.33 0.17 LDL

843F8E 0.778.5 77.9 79.2 77.8 78.3 71.3 122.9 2.7 10.41.81* * -0.52 LDH

96BEER 1.375.6 74.0 73.8 72.4 73.9 73.8 162.5 2.5 1.60.16 0.33 LZ

9U6EXD 1.971.1 68.7 73.3 72.0 71.3 72.1 81.4 1.4 1.6-0.83L -0.24 LZ

AXNJFA 1.474.8 77.0 77.8 75.2 76.2 75.2 162.7 2.6 1.41.01 0.81 LD

CW3WN6 0.373.1 73.0 73.1 72.4 72.9 73.5 162.6 2.3 0.5-0.23 0.24 LDL L

DFVY47 2.867.3 66.5 69.2 72.7 68.9 66.4 163.6 2.9 3.4-1.71* * H -2.21 * MB

DHJN9J 0.677.0 77.0 76.1 77.5 76.9 75.3 163.1 4.3 1.41.27* 0.86 LD

JMXALX 0.4 No Data72.2 72.0 72.7 72.3 72.3 153.0 2.8 0.8-0.46 -0.19 XXL

L3HHW2 6.877.4 71.7 62.6 64.6 69.1 66.4 166.8 7.3 3.7-1.66H XH XH -2.24 * XXH

M9GLY6 2.068.3 72.2 72.9 71.3 71.2 71.6 162.7 2.6 1.3-0.87 -0.42 XX

TCK9FP 0.173.2 73.3 73.1 73.3 73.2 73.7 161.0 1.1 0.5-0.11L L L 0.32 LDL L

X3M2NL 0.674.7 75.8 74.8 74.6 75.0 75.8 162.2 2.5 1.00.55 1.03 LD

XZDZGT 1.9 No Data76.1 79.7 76.9 77.6 77.7 152.4 2.5 1.11.52 1.70 LC

YBAGPV 2.275.3 72.0 77.2 73.5 74.5 73.8 162.0 2.2 1.50.37 0.36 LZ

YJKMHR 1.272.8 73.8 75.6 74.7 74.2 74.7 82.5 2.4 1.20.25 0.67 LD

YYTUGU 0.471.0 71.5 70.7 71.6 71.2 71.1 161.7 1.9 0.8-0.86 -0.58 LDL

ZZ2B6R 2.274.2 76.5 71.1 73.4 73.8 72.5 161.0 1.1 2.30.11L L L -0.09 TD

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

73.60

2.99

2.65

18

0

0

73.62

3.27

2.82

18

0

0

74.14

2.69

2.69

17

0

1

73.68

1.97

2.22

15

1

2

73.51 72.82

2.67 2.88

2.93 3.00

2.14 2.96

18 18

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Key to Instrument Codes Reported by Participants

LC L&W Crush Tester 48 LD L&W Crush Tester 248

LZ L&W Crush Tester (model not specified) MB Messmer Buchel K440

TD TMI Digital Crush Tester, Model 17-09 XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc36

Page 37: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 255

Report #587 (J)August 2018

Ring Crush (RCT), 26 lb Corrugating Medium - CM92TAPPI Official Test Method T822

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

2JTGCH 0.041.2 41.2 41.2 41.2 41.2 41.0 161.3 2.0 0.5-1.30L L -1.31 TUL

2UWMBQ 0.847.5 45.8 47.4 47.6 47.1 46.6 162.7 2.7 1.01.21 1.08 LD

3K7HHG 0.246.5 46.7 46.9 47.0 46.8 45.6 161.3 1.4 0.81.10L L L 0.64 LCL

3LVWYE 5.733.6 46.0 44.8 43.7 42.0 43.6 123.8 3.2 5.5-0.95* H -0.24 XXH H

3TD8CF 1.542.9 43.7 45.2 46.2 44.5 45.1 122.2 2.4 1.10.11 0.41 LZ

8HHPPA 0.940.9 41.2 41.6 39.5 40.8 40.6 162.3 1.9 1.0-1.46L * -1.48 TH

AXNJFA 0.944.9 46.8 45.1 44.9 45.4 45.3 161.9 2.1 0.70.51L 0.50 LD

CW3WN6 0.343.2 43.8 43.8 43.6 43.6 43.8 163.0 2.6 0.3-0.27 -0.13 LDL

DFVY47 1.832.9 33.8 37.0 34.9 34.7 X 33.4 161.9 2.5 3.1-4.08* X X X -4.60 X MB

DLZVN7 0.143.8 43.7 43.9 43.7 43.8 44.4 163.7 3.2 1.2-0.18H 0.12 LDL

EBDA39 0.9 No Data No Data41.8 40.6 41.2 41.2 22.1 2.1 0.9-1.30 -1.26 EM

F3XXEA 0.243.7 44.1 43.8 44.1 43.9 45.4 161.1 1.2 0.9-0.12L L 0.54 WKL

GBM6C6 1.133.1 31.0 31.7 33.4 32.3 X 32.5 162.5 2.5 1.3-5.09* X X X -4.99 X XX

JMXALX 0.9 No Data42.7 44.2 42.5 43.1 41.4 153.9 3.4 1.3-0.47H -1.17 LD

KKHE96 1.246.0 47.6 47.0 49.0 47.4 46.7 162.7 2.4 2.11.35 1.09 LC

QPFP9K 1.842.4 44.7 45.8 42.0 43.7 44.5 132.4 2.4 1.6-0.22 0.18 LD

UE4QPL 0.547.7 46.7 46.9 46.6 47.0 47.3 122.6 2.0 0.81.17 1.34 LD

WHBY4V 1.446.8 45.2 43.9 43.8 44.9 44.1 161.8 2.1 1.30.29L -0.03 TH

X3M2NL 1.449.1 47.9 50.0 46.7 48.4 47.7 162.8 2.8 1.51.79* 1.55 LD

XZDZGT 1.347.6 44.5 45.7 45.9 45.9 45.9 162.9 3.0 0.90.72 0.76 LC

Y7WL2K 0.545.3 45.8 45.1 46.1 45.6 45.0 162.6 2.9 1.70.57 0.37 LD

YCMVD4 2.735.5 41.3 41.3 39.6 39.4 * 38.8 162.2 2.6 1.6-2.05* -2.26 * LZ

YGBTLR 0.942.1 43.2 44.1 43.9 43.3 43.2 165.0 5.1 1.3-0.39H H H H -0.41 TX

YJKMHR 1.344.4 44.2 47.0 45.9 45.4 45.6 82.5 2.4 1.00.49 0.64 LD

ZK8LBF 1.342.3 41.5 43.4 44.4 42.9 41.9 162.2 2.5 1.3-0.58 -0.96 LD

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

42.71

4.57

2.64

25

0

0

44.36

2.16

2.77

23

0

2

44.84

2.19

2.78

22

1

2

44.54

2.49

2.62

21

2

2

44.23 44.12

2.34 2.34

2.71 2.65

1.63 1.64

23 23

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Printed: September 24, 2018 Copyright © 2018 CTS, Inc37

Page 38: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 255

Report #587 (J)August 2018

Ring Crush (RCT), 26 lb Corrugating Medium - CM92TAPPI Official Test Method T822

Key to Instrument Codes Reported by Participants

EM Emerson 1200 Series LC L&W Crush Tester 48

LD L&W Crush Tester 248 LZ L&W Crush Tester (model not specified)

MB Messmer Buchel K440 TH TMI Compression Tester, Model 17-76

TU TMI Universal Crush Tester (TMI K440) TX TMI Digital Crush Tester (model not specified)

WK Zwick Z005 Crush Tester XX Instrument make/model not specified by lab

Printed: September 24, 2018 Copyright © 2018 CTS, Inc38

Page 39: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 261

Report #587 (J)August 2018

STFI, 26 lb Corrugating Medium - CM92TAPPI Official Test Method T826

WebCode

Weekly Means

Week 1 Week 2 Week 3 Week 4 Mean SD

Monthly Results

SD WksCPV

Cumulative Results

Mean SD SD Wks WksCPV Inst

3K32HX 0.414.8 14.3 14.9 14.1 14.5 14.5 161.0 0.9 0.4-0.15 -0.08 LB

3K7HHG 0.314.3 14.2 14.2 13.5 14.0 14.3 160.9 1.0 0.3-1.04 -0.56 LB

3LVWYE 0.714.9 15.2 14.0 13.8 14.5 14.6 121.1 1.0 0.4-0.30H -0.04 XX

3TD8CF 0.313.6 14.2 14.1 13.9 14.0 14.2 121.1 1.1 0.4-1.19 -0.77 LA

8R7GB2 0.513.4 13.6 14.2 13.0 13.5 * 13.5 40.8 0.8 0.5-1.98 -1.91 * LH

9ETZH2 0.313.9 14.0 14.6 14.2 14.2 14.6 160.9 0.8 0.4-0.86 0.05 TT

AXNJFA 0.214.5 14.1 14.5 14.2 14.3 14.4 160.8 0.9 0.2-0.55 -0.38 LZ

BRV2CH 0.412.6 12.2 12.3 13.1 12.6 X 13.7 161.0 0.9 0.9-3.70*L X X -1.55 BKH

CW3WN6 0.214.5 14.3 14.8 14.6 14.6 14.7 160.9 0.8 0.2-0.14 0.19 LB

FN2L66 0.514.1 13.9 14.5 15.0 14.4 14.2 161.0 0.9 0.4-0.42 -0.65 LB

FZWMQL 0.414.9 15.5 15.2 14.6 15.0 14.9 161.1 1.1 0.40.73H 0.61 LA

HKU4K7 0.214.0 14.3 14.4 14.1 14.2 14.2 141.0 0.9 0.7-0.76 -0.77 LA

LBFCRE 0.414.5 14.4 14.8 15.2 14.7 14.6 160.9 0.9 0.40.14 0.12 LB

LNWCFR 0.414.6 14.6 15.4 14.8 14.9 14.8 160.8 0.9 0.30.41L 0.42 LA

MFZW7E 0.414.8 15.4 15.0 15.8 15.2 15.2 41.0 1.0 0.41.06 1.16 XX

QPFP9K 0.114.0 14.2 14.2 14.0 14.1 14.0 130.9 1.0 0.5-1.00 -0.96 LZ

RJKHZW 0.415.2 15.4 14.6 15.4 15.1 15.1 160.9 1.0 0.30.92 0.95 LA

TCK9FP 0.114.7 14.5 14.6 14.5 14.6 14.5 161.0 1.8 0.1-0.12 -0.06 LAL

UE4QPL 0.315.8 15.5 15.6 15.1 15.5 15.6 121.0 1.0 0.71.60 1.93 * LH

X3HJN2 0.314.6 14.3 13.9 14.4 14.3 14.1 160.9 1.0 0.4-0.59L -0.93 LU

X3JCJN 0.315.0 15.0 15.2 14.4 14.9 14.7 160.9 0.9 0.30.51 0.20 LA

X3M2NL 0.915.7 14.5 16.0 16.5 15.7 15.2 161.2 1.0 0.61.87H H *L * 1.18 LAH

XZDZGT 0.314.7 14.9 15.0 14.3 14.7 14.7 160.8 0.9 0.30.15 0.18 LU

YC3C7C 0.315.6 16.0 15.3 15.9 15.7 * 15.9 80.9 1.0 0.31.99* 2.35 * LA

YGBTLR 0.313.5 13.8 14.3 14.0 13.9 13.8 160.9 1.0 0.3-1.32 -1.48 TT

YJKMHR 0.515.4 14.5 15.3 14.7 15.0 14.8 81.1 1.0 0.40.60 0.36 LB

ZK8LBF 0.215.0 14.8 15.1 14.6 14.9 14.8 160.8 0.9 0.40.45L 0.44 LZ

Wk Mean

Avg SDr

SD btwn Labs

Labs Incld

Labs Excld

Labs not Rcvd

Month Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

14.54

0.75

1.00

27

0

0

14.58

0.61

0.94

26

0

1

14.75

0.54

0.97

26

0

1

14.51

0.80

0.87

27

0

0

14.63 14.58

0.56 0.55

0.95 0.99

0.39 0.42

26 27

Grand Mean

Avg SD

SD btwn Labs

Labs Incld

SD btwn Wks

Consensus (All Labs) Results

Printed: September 24, 2018 Copyright © 2018 CTS, Inc39

Page 40: Containerboard Interlaboratory Testing Program · are each lab's cumulative data for up to 16 weeks. At the bottom of the table are the consensus statistics for all the participants

Containerboard Interlaboratory Testing ProgramAnalysis 261

Report #587 (J)August 2018

STFI, 26 lb Corrugating Medium - CM92TAPPI Official Test Method T826

Key to Instrument Codes Reported by Participants

BK Buchel Strip Compression Tester BK-155 LA L&W Autoline

LB L&W Model 152 LH L&W 282

LU L&W 52 without moisture correction (was 53) LZ L&W (model not specified)

TT TMI Short Span Compression, 17-34 (MB K455) XX Instrument make/model not specified by lab

End of ReportPrinted: September 24, 2018 Copyright © 2018 CTS, Inc40