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
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
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.
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).
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc18
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc19
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc20
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc21
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
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc23
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc24
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
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc26
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc27
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
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
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc30
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc31
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
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc33
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
Printed: September 24, 2018 Copyright © 2018 CTS, Inc34
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
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
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
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
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
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