chapter 6 net quantity - canadian food inspection · pdf filemeasurement canada standards...

Page amended 2013/04/20, Manual published 2009/11/25 6 - iProcessed Products - Product Inspection Manual

CHAPTER 6 NET QUANTITY

6.1 OBJECTIVE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.3 REQUIRED FORMS, EQUIPMENT and REFERENCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6.3.1 Forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6.3.2 Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6.3.3 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6.4 NET QUANTITY VERIFICATION (NQV) TOOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6.5 INSPECTION PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6.5.1 Scale Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6.5.1.1 Level the Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 6.5.1.2 Calibrate the Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 6.5.1.3 Conduct a Platform Shift Test.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.5.1.4 Conduct the Zero Drift Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.5.2 Select a Product to Inspect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

6.5.3 Determine the Inspection Lot Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

6.5.4 Enter Data in the Worksheet of the NQV Tool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

6.5.4.1 The NQV Tool Automatically Assigns the Tolerance. . . . . . . . . . . . . . . . . . . . . 6-7 6.5.4.2 The NQV Tool Automatically Determines the Sample Size. . . . . . . . . . . . . . . . 6-8

6.5.5 Determine the Tare Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

6.5.6 Determine the Density for Products Sold by Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6.5.7 Determine the Number of Pallets and Cases per Pallet Required. . . . . . . . . . . . . . . . . . . . 6-11

6.5.7.1 Establish the Number of Pallets to Select from the Inspection Lot.. . . . . . . . . 6-11 6.5.7.2 Establish the Number of Units to Select per Case. . . . . . . . . . . . . . . . . . . . . . 6-11 6.5.7.3 Establish the Total Number of Cases to Select. . . . . . . . . . . . . . . . . . . . . . . . 6-12 6.5.7.4 Establish the Number of Cases to Select per Pallet. . . . . . . . . . . . . . . . . . . . . 6-13

6.5.8 Randomly Select the Pallets, Cases and Sample Units.. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.9 Weigh the Sample Units.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13


Page amended 2013/04/20, Manual published 2009/11/25

Processed Products - Product Inspection Manual 6 - ii

6.6 INTERPRET AND VERIFY THE RESULTS OF THE INSPECTION. . . . . . . . . . . . . . . . . . . . . 6-14

6.6.1 The NQV Tool Automatically Calculates and Indicates the Result of the Inspection. . . . . . 6-14

6.6.2 Acceptance Criteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6.6.3 Verify the Outcome of the Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6.7 PRINT THE PRODUCT LOT INSPECTION REPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

6.8 UNSATISFACTORY INSPECTION RESULTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

6.9 COMPLETE AND DISTRIBUTE THE INSPECTION REPORT (CFIA / ACIA 0992). . . . . . . . . 6-18



Processed Products - Product Inspection Manual 6-1

6.1 OBJECTIVE Return to Index

To verify that the amount of product in a container is at least as much as the net quantity declared on the label, within the tolerances prescribed by the Consumer Packaging and Labelling Regulations (CPLR).

6.2 SCOPE Return to Index

Prepackaged products destined for retail sale when:

• the net quantity is declared:

• by weight; or • by volume, for homogenous products only (see Table 6-1); and

• the product is subject to the Processed Products Regulations (PPR) or produced in a registered establishment and subject solely to the Food and Drugs Act (FDA) and the Consumer Packaging and Labelling Act (CPLA).

Table 6-1: Homogenous and Non-homogenous Products Sold by Volume and Subject to the PPR

Column I Homogenous Products

(Net quantity verification applies)

Column II Non-Homogenous Products

(Net quantity verification does not apply)

Applesauce (smooth, canned) Beans (canned, with or without sauce)

Frozen concentrated juices Cranberry jelly, Jellied cranberries, Cranberries or Cranberry sauce

Horseradish Fruits (canned, except if mentioned in homogenous)

Jellies Jams, Marmalades, Preserves

Juices and Nectars Mincemeat

Ketchup Olives

Pumpkin (canned) Pickles, Relishes and Chutneys

Tomato Paste, Puree or Pulp Pie fillers/fillings

Sauerkraut

Spaghetti in tomato sauce

Tomato chili sauce

Vegetables (canned, with or without sauce, except if mentioned in homogenous)

Note:

This chapter does not apply to non-homogenous products when the net quantity is declared by volume (method under development). However, most non-homogenous products are subject to drained weight requirements which are verified as part of the activities outlined in Chapter 5 -Grades and Standards.




6.3 REQUIRED FORMS, EQUIPMENT and REFERENCES Return to Index

6.3.1 Forms

• Net Quantity Verification (NQV) Tool • Inspection Report (CFIA / ACIA 0992) • Inspector Non-Compliance Report (Short Form) (CFIA / ACIA 5393) • Notice of Detention (CFIA / ACIA 3256) • Official Seal Tape - Yellow (CFIA / ACIA 4561) • Notice of Release from Detention (CFIA / ACIA 3257)

6.3.2 Equipment Return to Index

• SetraTM 12000C scale or equivalent • Laptop computer or Statistic calculator • Weight kit (i.e., reference weights) (calibrated annually) • For products sold by volume:

< Volumetric kit containing a pycnometer, graduated cylinder, beaker, etc. (calibrated every 10 years)

< Thermometer (calibrated every 2 years)

Notes:

1) When calibration is needed, equipment (other than scales) should be sent to:

Measurement Canada Standards Building

151 Tunney's Pasture

Ottawa, ON K1A 0C9

2) When scale repair is needed, it should be sent to the supplier of the scale at:

Scale Services & Sales

28 Crown Steel Drive, Unit 7

Markham, Ontario. L3R 9Y1

E-mail

http://www.ic.gc.ca/eic/site/mc-mc.nsf/eng/h_lm00017.html

http://www.scaleservices.com




6.3.3 References

• Canada Agricultural Products Act (CAPA)

• Processed Products Regulations (PPR)

• Consumer Packaging and Labelling Act (CPLA)

• Consumer Packaging and Labelling Regulations (CPLR)

• Training Package on the Net Quantity Verification (NQV) Program

• Net Quantity Verification Help File

• Setra Scale Operating Instructions

• Measurement Canada - Calibration Services

6.4 NET QUANTITY VERIFICATION (NQV) TOOL Return to Index

The Consumer Protection Division has developed a Net Quantity Verification (NQV) Tool and a comprehensive training package on the NQV program. The NQV Tool contains the relevant worksheets, performs the calculations, and allows an inspector to save and print the completed worksheet.

IMPORTANT: The NQV Tool is the property of the Agency and it should always remain within the Agency’s control. Do not provide a copy of this electronic tool to industry.

6.5 INSPECTION PROCEDURES

Return to Index

6.5.1 Scale Setup

The steps below were extracted from the Setra Scale Operating Instructions. It is specific to the SetraTM brand, model 12000C scale but can be applied to any scale (see the manufacturer’s manual for details).

For details on the functions, operation, testing and care instructions for the scale, see Setra Scale Operating Instructions (you can use the link in 6.3.3). Note that “Part 4 - Setup Functions (for Interface with Computers)” does not apply since the electronic software (called SPRINT) to interface the computer with the scale is not available for Processed Products Inspectors. Therefore, you will need to record the weights from the scale to the computer’s NQV worksheet.

6.5.1.1 Level the Scale Return to Index

Prior to each use, level the scale as follows:

i) Retract the left rear foot completely into the scale.

ii) Adjust the two front feet until the levelling bubble (located on the lower left side of the

http://laws.justice.gc.ca/en/C-0.4/index.html

http://laws.justice.gc.ca/en/C-0.4/C.R.C.-c.291/index.html

http://laws.justice.gc.ca/en/C-38/index.html

http://laws-lois.justice.gc.ca/eng/regulations/C.R.C.,_c._417/index.html

http://www.ic.gc.ca/eic/site/mc-mc.nsf/eng/lm00600.html




keyboard) is centred.

iii) Extend the left rear foot until the scale is stable, making certain all four feet contact the mounting surface.

6.5.1.2 Calibrate the Scale Return to Index

Prior to each use, calibrate the scale using the method for Full Scale or Specific Weight depending on the test weights you have. A cold scale functions very slowly and could malfunction. If you experience difficulty calibrating or using the scale, allow it to warm up.

• Full Scale Method (this method is preferable, as it tests the scale at full capacity)

i) Press the “-” key.

ii) Press the CLEAR key.

iii) Remove all objects from the pan.

iv) Press the ZERO key.

v) Place 12.5 kg of weights on the pan.

vi) Press the SETUP/CAL key.

• Specific Weight Method (this method tests the scale at less than full capacity)

i) Press the "-" key.

ii) Press the CLEAR key.

iii) Remove all objects from the pan.

iv) Press the ZERO key.

v) Press the CONV key until the scale reads in the units of the known weight (such as grams or ounces).

vi) Place the known weight(s) on the pan. Use a weight (or combination) which is as close as possible to the capacity of the scale.

vii) Enter the value of the known weight.

viii) Press the SETUP/CAL key.

6.5.1.3 Conduct a Platform Shift Test Return to Index

Prior to each use:

i) Place a 3 kg test weight on one corner of the pan at a time.

ii) Weight readout should be consistent on all four corners. If a variation of more than 0.2 kg occurs, send the scale for repair.

6.5.1.4 Conduct the Zero Drift Test Return to Index




Zero drift is when the scale does not return to zero (or the intended tare value) when you remove the specimen(s) or test weight(s) from the platform.

If you observe zero drift during normal use, conduct the zero drift test as follows:

i) Ensure the scale is level.

ii) Plug the scale in, turn it on and allow at least 30 minutes warm-up time beforeconducting this test.

iii) Place a 5 kg weight on the scale and record the scale display indication every 5 or 10minutes for a total time of 45 minutes.

iv) If the scale display indicates a drift of more than one scale increment (i.e., 0.1 g forSetraTM 12000C), and the error appears to increase with the length of time, the scaleis not performing properly.

v) Conduct the “ambient calibration (CAL A)” on the scale. Refer to Setra ScaleOperating Instructions (see the link at 6.3.3). Scroll down to “5. SCALE TESTING”,then “C. Ambient Calibration (CAL A)”.

vi) Repeat the zero drift test and record observations to determine if excessive zero driftis still evident.

vii) Request Scale Services and Sales to provide information on the suspected defectiveSetra scale and, when necessary, to make suitable shipping arrangements (using thechannels established for your office). For information for Scale Services & Sales, seesection 6.3.2.

6.5.2 Select a Product to Inspect Return to Index

The Consumer Packaging and Labelling Regulations (CPLR) only apply to prepackaged products sold at retail. Since net quantity verification comes under the CPLR, select a prepackaged product destined for retail sale that:

• declares the net quantity by weight; or

• declares the net quantity by volume and is a homogenous product identified in Column Iof Table 6-1; and

• is subject to the PPR or produced in Registered Establishments and subject solely to theFDA and the CPLA.

6.5.3 Determine the Inspection Lot Size Return to Index




An Inspection Lot is a quantity of food product considered as a distinct unit for inspection purposes. The products in an inspection lot must be of the same style, type, brand, container size and container type. Unique production codes usually identify each inspection lot.

Use the formula below to calculate the inspection lot size.

Inspection Lot Size = no. of pallets x no. of cases per pallet x no. of units per case

Example: If an inspection lot was made up of 4 pallets, each pallet contained 40 cases and each case contained 24 units:

Inspection Lot Size = 4 pallets x 40 cases per pallet x 24 units per case

= 3,840 units

6.5.4 Enter Data in the Worksheet of the NQV Tool Return to Index

a) Retrieve the NQV Tool as follows:

i) If you already saved the establishment details on your computer(see step (c) below), retrieve the NQV Tool by opening the saved document. Proceed to step (d). Otherwise, proceed to step (a)(ii).

ii) Double click on the NQV Tool icon located on the desktop of your computer. When prompted:

Click on the button to allow the program to load properly in Excel. You are now in the main screen of the NQV Tool. Proceed to step (b).

b) If you did not save your name, address, etc directly into your NQV Tool icon.1:

i) Click on the button to record your name, address, telephone number, etc.

ii) Click on the button.

c) Click on the button and record the name of the establishment being inspected, their address, telephone number, etc.

If you wish to save the document, choose “Save As” in Excel (do not click on the floppy disk icon from the Excel toolbar as it will over-write the blank worksheets in your NQV Tool icon). This will eliminate the need to repeatedly conduct steps (a)(ii) and (b) at the same establishment from one product inspection to another, within the same or subsequent visits. There is no set naming convention for these files, but it is suggested to include the company name, product name, product net quantity and date in the name of




the file. You can organize these files into folders, by company, by product, etc.

Then, click on the button.

d) Retrieve the appropriate worksheet by clicking on:

• the button to obtain the worksheet for products sold by weight; or

• the button to obtain the worksheet for homogenous products sold by volume and listed in Column I of Table 6-1.

Note: The “Random Weight” button does not apply to processed products.

e) Record information in the applicable fields of the worksheet [e.g., date, product details (including the net quantity declared on the label), product lot maintenance (including the inspection lot size, as determined during step 6.5.3)] and the weight kit information.

Example:

IN S P E C T IO N DATED e c e m b e r 1 7 ,2 0 0 8

P r o d u c t D e t a i l

F r o z e n s t r a w b e r r ie s

A B C

A B C C o m p a n y

1 2 3 M a i n S t .

O t t a w a . O N K 1 K 1 K 1

P l a s t i c b a g

8 0 0

P r o d u c t L o t M a in t e n a n c e

B a t c h C o d e 1 2 3 4 5

L o t S iz e 3 8 4 0

S a m p le S ize [s y s te m ) ~ 2

For more instructions on entering data into the worksheet, double click on the NQV Help File icon located on the desktop of your computer.

6.5.4.1 The NQV Tool Automatically Assigns the Tolerance Return to Index

The NQV Tool automatically assigns the applicable tolerance based on the net quantity

<

_ _

~ _

| ~ ~




of the product [entered at step 6.5.4(e)] and based on Schedule I, Part III of the CPLR (reproduced in Table 6-2).

Example: In the example in 6.5.4(e), a tolerance of 15 g was automatically assigned by the tool.

Table 6-2: Tolerances for Net Quantities Declared in Metric Units of Weight or Volume (as per Schedule I, Part III, CPLR)

Column I

Declared Net Quantity

Column II

Tolerance (%) grams or millilitres

grams or millilitres

> 0 and # 50 9 -

> 50 and # 100 - 4.5

> 100 and # 200 4.5 -

> 200 and # 300 - 9

> 300 and # 500 3 -

> 500 and # 1 kg or 1 L - 15

kilograms or litres

> 1 and # 10 1.5 -

> 10 and # 15 - 150

> 15 1 -

6.5.4.2 The NQV Tool Automatically Determines the Sample Size Return to Index

The NQV Tool automatically calculates the number of samples to select, based on the inspection lot size [entered at step 6.5.4(e)] and on “Schedule II, Part I - Samples” of the CPLR (reproduced in Table 6-3).

Example: In the example in 6.5.4(e), a sample size of 32 was automatically assigned by the tool.




Table 6-3: Sample Size Determination (as per Schedule II, Part I, CPLR)

Column I

Number of Units

in the Inspection Lot

Column II

Minimum Number of Units

in the Sample

2 to 10 All units in the Inspection Lot

11 to 40 10

41 to 128 25% of the units in the Inspection Lot,

rounded up to the nearest whole number

129 to 4000 32

4001 to 8000 64

8001 to 12000 96

$12000 125

Note: The sample size required for a net quantity verification differs from the sample sizes required for all other inspection and sampling activities in this manual.

6.5.5 Determine the Tare Weight Return to Index

The tare is the total weight of the container and packaging material without the contents. If empty unused packaging material is available, use procedure A below to determine the tare weight. Otherwise, use procedure B.

A) Tare Weight Procedure for Empty/Unused Packages

This procedure is generally used for products inspected at registered establishments.

i) Obtain 10 full sets of package components for the product, including labels, lids, plastic liners, tamper-evident bands, glue, etc.

ii) Weigh each full set of components and record the weights in the “Tare Determination” section of the worksheet.The NQV Tool will automatically

calculate and indicate (at the bottom

of the tare determination section)the average tare,the range (i.e., the weight difference between the lightest and the

heaviestcontainer); andthe ½ Range (i.e., half the range).

1




Example: T a re D ete rm ina tio n :

N U M B E R

1 1 0 . 02 1 0 . 03 1 2 . 04 1 2 . 05 1 3 . 06 1 4 . 07 1 5 . 0S 1 5 . 09 1 6 . 0

1 0 1 6 . 0

A v e r a g e 1 3 . 36 .0

1 /2 r a n g e 3

B) Tare Weight Procedure for Full/Used Packages

This procedure is used for products packed somewhere other than where the inspection is taking place (e.g., imported products, products in a storage facility).

I) Confirm that empty/unused packaging materials are not available. If they are, use procedure A above.

ii) Obtain 10 complete samples, including all package components. You can use returned, damaged or sample product specimens for this destructive tare determination, as long as the packaging materials are identical.

iii) Open the packages. Discard the product or use it for another inspection activity outlined in this manual (if applicable).

iv) Wash the packages to remove any product residues. Avoid wetting labels and other absorbent packaging materials.

v) Throughly dry all package components.

vi) Weigh each completely cleaned and dried package and record the weights in the “Tare Determination” section of the worksheet. The NQV Tool will automatically calculate and indicate the average tare, the range (i.e., the weight difference between the lightest and the heaviest container) and the ½ Range (i.e., half the range) at the bottom of the tare determination section. See the example in (A) above.

For more details, see Section 3 - “Tare Determination Procedures at Various Levels of Trade” of the NQV Help File.

6.5.6 Determine the Density for Products Sold by Volume Return to Index

This method only applies to the homogenous products listed in Column I of Table 6-1:

i) Use a stainless steel pycnometer and wipe it clean with a soft, lint-free cloth.




ii) Record the “certified pycnometer volume” (located on the calibration certificate) in the “Density Determination” section of the worksheet.

iii) Weigh the empty pycnometer, including lid, then record this value on the worksheet as “weight of empty pycnometer”.

iv) Mix the specimen well in the original container. If necessary, transfer some product to another container for mixing. For high viscosity products, mix gently to avoid incorporating air into the product, as air will affect the density.

v) Bring the temperature of the specimen to 20°C. This can be done by pouring approximately 200 ml of the product into a 500 mL beaker and heating or cooling the product (as the case may be) while stirring gently.

vi) Bring the temperature of the pycnometer to 20°C by immersing it in 20°C water.

vii) Dry the pycnometer throughly then fill with product at 20°C. For high viscosity products, tap the pycnometer on a flat surface several times to remove any air trapped in the product.

viii) Place the matching perforated lid on top of the pycnometer and seat it with a careful twisting motion.

ix) Wipe excess product from the pycnometer and lid with a soft, lint-free wiper.

x) Weigh the loaded pycnometer and record this value as “weight of pycnometer and fluid” on the worksheet.

The NQV Tool will automatically calculate the density for you.

Density = weight of sample

volume of sample

6.5.7 Determine the Number of Pallets and Cases per Pallet Required

Return to Index

6.5.7.1 Establish the Number of Pallets to Select from the Inspection Lot

Use Column I of Table 6-3 as the number of pallets in the inspection lot and Column II to determine the minimum number of pallets to sample from.

Example: If there are 4 pallets in the inspection lot, all pallets would be selected (i.e., samples would be drawn from all pallets).

6.5.7.2 Establish the Number of Units to Select per Case Return to Index




As a guide, ten percent of the units in each case (rounded up to the nearest whole number) should be selected as samples, i.e.:

No of units to select per case = No of units per case x 10% (rounded up)

Example: If the number of units in each case is 24, then:

No of units to select per case = 24 x 10%

= 2.4 (to round up to the nearest whole no)

= 3 units are required from each case

Note: Even though the rounded 10% figure is a guideline, it is recommended that a greater number of packages not be sampled from each case.

6.5.7.3 Establish the Total Number of Cases to Select Return to Index

Calculate the number of cases needed as follows:

Total No of cases needed

(rounded up) =

No of samples required

No of units to select per case

Example: If 32 samples are required, then:

Total No of cases needed = 32 samples required (as per 6.5.4.2)

3 units to select per case (task 6.5.7.2)

= 10.7 (to round up to the nearest whole no)

= 11 cases needed




6.5.7.4 Establish the Number of Cases to Select per Pallet Return to Index

Calculate the number of cases to select per pallet as follows:

No of cases to select per pallet* = Total No of cases needed

No of pallets to sample from

* If the result is not a whole number, round down to the whole number and select an additional case per pallet until the required amount is obtained.

Example: If 11 cases from 4 pallets are required:

No of cases to

select per pallet =

11 cases needed [task 6.5.7.3]

4 pallets to sample from [task 6.5.7.1]

= 2.75 cases per pallet

= 2 cases for 4 pallets + 1 additional case for the first 3 pallets*

* 2 cases are to be selected from each pallet (2.75 rounded down to 2), then an additional case from each of the first 3 pallets to obtain the required 11 cases.

6.5.8 Randomly Select the Pallets, Cases and Sample Units Return to Index

Randomly select the pallets, cases and sample units as outlined in task 2.4.5 of Chapter 2 -Sampling. Collect the samples for inspection.

6.5.9 Weigh the Sample Units Return to Index

Conduct the following steps for products sold by weight and for homogenous products sold by volume:

i) Weigh each full container and record the value in the “Gross Weight” column of the “Net Weight Determination” section of the worksheet.

ii) Repeat until all of the samples are weighed and recorded.

Note: If you wish to electronically save the inspection results, choose “Save As” in Excel. Do not click on the floppy disk icon from the Excel toolbar as it will over-write the blank worksheets in your NQV Tool icon. You must save the results after each product verification. There is no set naming convention for these files, but it is suggested to include the company name, product name, product net quantity and date in the name of the file. You can organize these files into folders, by company, by product, etc.




6.6 INTERPRET AND VERIFY THE RESULTS OF THE INSPECTION Return to Index

6.6.1 The NQV Tool Automatically Calculates and Indicates the Result of the Inspection

a) In the “Net Weight Determination” section, the NQV Tool automatically:

i) Calculates the net weight of the package (for products sold by weight or by volume) and indicates the result in the “Net Weight” column, as you enter the gross weight values for each sample.

Net weight = gross weight - tare weight

ii) Indicates the following symbols, in the “Result” column:

(-) The net weight of the package is less than the declared net quantity (weight or volume), but greater than the T1 value)

T1 The net weight of the package is less than the declared net quantity minus one tolerance

T2 The net weight of the package is less than the declared net quantity minus twice the tolerance

Example: If the net quantity declared on the label is 600 g, the tolerance is 15 g (as per Table 6-2). Therefore, the “Result” column of samples:

$ 600 g will be left blank

< 600 g and $ 585 g will be marked (-)

< 585 g and $570 g will be marked T1 (i.e., 600 g - one tolerance)

< 570 g will be marked T2 (i.e., 600 g - twice the tolerance)

iii) Indicates the following symbols, in the “T1" and “T2" columns when a tare range exists (i.e., when there is a weight difference between the empty containers weighed during task 6.5.5) and one or more packages are either marginally short weight, marginally T1 or marginally T2 (i.e., the package is within + or - half the tare range (1/2 Range) around the T1 or T2 values):

T1+ The net weight of the package is within the range of the T1 value plus ½ Range

T1- The net weight of the package is less than the T1 value, but within the limit of 1/2 Range

T2+ The net weight of the package is within the range of the T2 value plus ½




Range

T2- The net weight of the package is less than the T2 value, but within the limit of ½ Range.

Example: If the ½ Range is 3 grams and the net quantity declared on the label is 600 g, the limits of all T values will be indicated as follows:

N e » V e ig h » D e t e r m i n a t io n

S A M P L E H U M B E R

T O R E W EIG HT

(a)MET W EIG HT

(< 0R E S U LT T1 T2

1 6 1 3 ~ 3 1 3 .3 6 0 0 . 0

2 6 1 2 .3 1 3 .3 5 9 9 . 0 (-1

3 6 0 1 .3 1 3 .3 5 3 3 . 0 H

4 6 0 1 .2 1 3 .3 5 3 7 . 9 (-1 T 1 *

5 5 9 9 . 3 1 3 .3 5 3 5 . 0 (-1 T 1 .

e 5 9 9 . 2 1 3 .3 5 3 4 . 9 T 1 T 1 -

7 5 9 5 . 3 1 3 .3 5 3 2 . 0 T 1

z 5 9 5 . 2 1 3 .3 5 3 1 .9 T 1

9 5 3 9 . 3 1 3 .3 5 7 3 . 0 T 1

10 5 3 9 . 2 1 3 .3 5 7 2 . 9 T 1 T 2 *

11 5 3 3 . 3 1 3 .3 5 7 0 . 0 T 1 T 2 *

12 5 8 3 . 2 1 3 .3 5 6 9 . 9 T 2 T 2 -

13 5 3 0 . 3 1 3 .3 5 6 7 . 0 T 2

b) In the “Net Weight Verification Results” section (for products sold by weight) or in the “Volume Verification Results” section (for products sold by volume), the NQV Tool automatically:

i) Calculates and indicates the weighted average or weighted volume of all samples weighed. The weighted volume is automatically calculated as follows:

Weighted volume = (weighted average) x density

For details on weighted average, consult the Training Package on the Net Quantity Verification (NQV) Program.

ii) Indicates the tolerance, T1, T2 and the + or - T limits.

iii) Indicates the outcome of the inspection, based on the acceptance criteria described in section 6.6.2.

1 |




Example: N e t W e i g h t V e r i f i c a t i o n R e s u lts :

D e c l a r e d Q u a n t i t y

M e a n 5 9 9 .1 g

W e i g h t e d A v e r a g e 6 0 1 .6 6 0 1 1 0 4 g

S ta n d a rd D e v ia tio n 5 .2 7 3 9 1 5 3 8 3 g

T o l e r a n c e 1 5 g

T1 + L im it 5 8 8 g

T 1 L i m i t 5 8 5 g

T 1 - L im it 5 8 2 g

T 2 + L im it 5 7 3 g

T 2 L i m i t 5 7 0 g

T 2 - L im it 5 6 7 g

LOT P a s s F a i l C r i t e r ia :

1) 2 o u t o f 3 2 s a m p le s w e re b e lo w T1; 2 - a llo w e d :

2 ) 0 o u t o f 3 2 s a m p le s w e re b e lo w T 2 ; 1 - a llo w e d : P A S S

3 ) W e ig h te d A v e ra g e e q u a l to o r g re a te r th a n D e c la re d Q u a n tity : P A S S

6.6.2 Acceptance Criteria Return to Index

The NQV Tool automatically interprets the results of the inspection (i.e., whether the lot passes or fails) based on the:

i) maximum number of samples found vs. number allowed below one tolerance (T1);

ii) maximum number of samples found vs. number allowed below twice the tolerance (T2); and

iii) minimum weighted average found vs. required weighted average for the lot.

A lot passes when all three criteria above are met. For an explanation of the interpretation of the results and the tolerances established, refer to the NQV Tool help file, under “Interpreting the Results”.

The NQV Tool automatically summarizes the outcome of the inspection (i.e., the lot passes or fails) on the Product Lot Inspection Report (see step 6.6.1).

6.6.3 Verify the Outcome of the Inspection Return to Index

If the :

a) Lot PASSES, proceed to task 6.7.

b) Lot FAILS, check the “T1" and “T2" columns for any samples identified as T1+, T1-, T2+or T2-. If:

1 1I"

-

-




< no samples are identified as T1+, T1-, T2+ or T2-, proceed to task 6.7.

< one or more samples are identified as T1+, T1-, T2+ or T2-, calculate if a determination of the actual tare of those samples (i.e., the actual weight of the emptied and cleaned container) could change the status of the lot from Fail to Pass. If the status of the lot:

< would not change, proceed to task 6.7.

< may change from Fail to Pass, conduct the following steps for each sample identified as T1+, T1-, T2+ or T2-:

(i) Empty the contents of the package.

(ii) Thoroughly clean the packaging material.

(iii) Weigh the packaging material and record the actual tare in the “Actual Tare Weight” column of the worksheet. The system will automatically calculate the new net weight and adjust the calculated lot values.

Note: The net quantity verification uses a non-destructive method, so the average tare weight is used to estimate the actual tare weight of each package weighed. Packages with + or -T values may be good candidates for actual tare determination. If the average tare is heavier than the sample’s actual tare, the sample may go from a marginal T2 to a T1 or from a marginal T1 to a (-). If the average tare is lighter than the actual tare, the opposite may occur.

Example: If a lot failed due to 4 out of 32 samples below T1 (two T1 are allowed) and 2 of those 4 samples were identified as “T1-“ , this lot has the potential of passing if the actual tare these 2 samples weigh less than the average tare found in step 6.5.5.

Original Result Based on the AVERAGE Tare:

Net W eight Determination:

SAMPLE NUMBER

GROSS W E IG H T

(9 )

TARE WEIGHTfg)

NET WEIGHT[gj RESULT T1 T2

1 598.0 13.3 584.7 T1 T1-

2 595.4 13.3 582.1 T1 T1-

3 594.2 13.3 580.9 T14 590.0 13.3 576.7 T1

LOT Pass Fal Criteria; these criteria must ALL be met in order for the lotto PASS1) 4 outof 32 samples were belowH; 2 -allowed FAIL2) 0 outof 32 samples were below T2; 1 -allowed PASS3) Weighted Average equal to or greater than Declared Quantity PASS

^

I

I

r- j .-. ~ I-.-..- . -r

1 1["" ^

II


-

-



New Result Based on the ACTUAL Tare:

Net W eight Determination:

SAMPLE MUMBER

g r o s s WEIGHT

MTARE WEIGHT

(g)NET WEIGHT

(g) RESULT T1 T 2

1 593.0 13.3 1 1 5 586.5 (-) T1 +

2 595.4 13.3 10.0 585.4 (-) T1 +

3 594.2 13.3 580.9 T1

4 590.0 13.3 576.7 T1

LOI P assF a il Criteria: these c iite iia must ALL he m et in order for the lot to PASS

1) 2 outof 32 samples were below T1; 2 -allowed: PASS

2) 0 outof 32 samples were below 12; 1 -allowed: PASS

1 Weighted Average equal to or greaterthan Declared Quantity: PASS

6.7 PRINT THE PRODUCT LOT INSPECTION REPORT Return to Index

To print the Product Lot Inspection Report, click on the button (located at the top of the worksheet). A two-page report will automatically print on your printer*. Do not use Excel’s print function (under file or the printer icon on the toolbar) as the report will not format properly.

* If you do not have a portable printer with you during the inspection, you can view the results by scrolling to the right of the worksheet (Excel columns P to Y).

Keep the report on file. Upon request, you can provide a copy of the report to the regulated party. Do not email the NQV inspection report to the regulated party as it would automatically give them access to the NQV Tool which is the property of CFIA. If email is used, you must scan the report.

6.8 UNSATISFACTORY INSPECTION RESULTS Return to Index

If the lot fails for any of these criteria, refer to Chapter 11 - Enforcement and Compliance or consult with your Supervisor. You, or your Supervisor, may also consult the Program Officer and/or the Processed Products Program Specialist for further guidance.

6.9 COMPLETE AND DISTRIBUTE THE INSPECTION REPORT (CFIA / ACIA 0992)

Return to Index

Summarize the results of the net quantity verification on the Inspection Report (CFIA / ACIA 0992). For all non-compliance issues, request a written corrective action plan from the regulated party (within a specified time frame). Sign and date each copy of the report.

Present the report to the regulated party at the end of your visit and have them sign all copies. Otherwise, mail, fax or email the report with a covering letter asking them to return a signed copy of the report within one week. Distribute copies as specified on the bottom of the report and keep a copy for your files. Upon request, you can provide a copy of the Product Lot Inspection Report to the regulated party (as stated in section 6.7).

chapter 6 net quantity - canadian food inspection · pdf filemeasurement canada standards...

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