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The average quantity system (AQS) is an internationally agreed method of determining the size or quantity of pre-packed articles with a ‘constant nominal content’. This means it provides confirmation of the measurement or quantity of goods in the package, being sold by measure (weight, volume, length or area) or count (number of items).

AQS is based on recommendations developed by the International Organization of Legal Metrology, (OIML R 79 Labelling Requirements in Pre-packages and OIML R 87 Quantity of Product in Pre-packages) and is intended for use in large-scale packaging plants where goods (e.g. breakfast cereals) are packed in the same quantity in large numbers.

After extensive industry and consumer consultation, the Australian Government decided to introduce AQS on a voluntary basis. Under national trade measurement legislation, manufacturers, packers and importers can choose:

  • to continue with their current system of shortfall calculation based on the uniform trade measurement legislation (UTML) adopted by the states and territories; or
  • to adopt AQS.

Under the existing UTML system:

  • The average content in a sample of pre-packed articles of the same measurement cannot be less than the stated quantity marked on the packages.
  • No pre-packed article can have a shortfall greater than 5% of the stated quantity.

Under the AQS:

  • The average net content in a sample from the production run of pre-packed articles cannot be less than the stated quantity marked on the packages.
  • Allowance is made for a small number of pre-packages to exceed a ‘tolerable deficiency’.
  • None of the pre-packages in the sample can have more than twice the prescribed tolerable deficiency.

AQS provides a 97.5% assurance that goods are the correct quantity within the prescribed tolerances. These tolerances are proportional to the quantity of product and related difficulty of accurate filling.

Note: Australian AQS requirements align fully with OIML recommendations and may differ from those of other countries that do not fully implement the OIML recommendations. Importers should be aware of these differences when importing products using AQS.

What does the AQS mean for my Business?

AQS gives manufacturers and packers an opportunity:

  • to reduce UTML compliance costs associated with packing substantially above the stated quantity to avoid rogue packages being included in the sample;
  • to align with international trading partners using the AQS e-mark — allowing for easier export
  • State Sahara Leather Heels Taupe High Ricard 1 to use statistical sampling methods providing greater assurance that the packaged goods they sell and buy contain the quantity stated on the label;
  • to have e-marked packaged goods to compete under the same rules as their international competitors in both domestic and international markets; and
  • to have greater confidence that exported products will not be rejected due to quantity issues.

Packers and importers have a duty to carry out sufficient checks to ensure that all batches of pre-packed articles meet the legislative requirements for correct measurement. The company does not need to follow the sampling requirements illustrated below for trade measurement inspectors, but it is strongly recommended to implement testing procedures and practices that provide a statistically robust and verifiable measure for compliance with these requirements.

When inspectors visit premises to inspect pre-packed articles, they will be checking what policies and procedures are in place to ensure the articles on the premises are the correct measurement. Inspectors will request information about:

  • controls to ensure the production process is operating correctly
  • sampling and check-measuring plans
  • training relating to check-measuring and whether it ensures that staff are competent to conduct these checks
  • Sahara Heels Leather Taupe 1 Ricard State High records being kept and their appropriateness, including actions taken when non-conforming packaged articles are detected
  • equipment being used for check-measuring and its suitability for these checks.

If inspectors decide that that they need to test products to assess the validity of these procedures, the testing will be performed at the manufacturing or packing site as outlined below.

All goods pre-packed for sale must be marked with the net measurement (i.e. the weight of the contents without the packaging material).

AQS e-mark

AQS and the UTML systems operate concurrently and inspectors need to be able to identify which measurement system has been used.

If you choose to adopt the AQS in your business, pre-packed articles must be marked with the AQS e-mark, which is defined in the regulations as the letter ‘e’. The shape, size and location of the e-mark must be:

  • at least 3 mm high
  • close in position to the stated quantity
  • in the same field of vision.

Australian manufactured pre-packed articles without an e-mark will be assessed for compliance with the current UTML system and tested by trade measurement inspectors accordingly. These packages may also be tested at the point of sale.

Packers must be aware that it is an offence to mark a package with a mark that is not an AQS e-mark but which is likely to give the impression of being one.

In the case of imported products with an e-mark, the inspector would not normally have access to the production records from the overseas manufacturer and may require the products to be tested at the warehouse.

Shortfall

‘Shortfall’ is a term used throughout the packaging sections of the national trade measurement legislation. It means the extent to which production or output falls short of expectation.

Where a package is tested in accordance with the national single article test procedure, a shortfall occurs where the measured quantity of a package’s contents falls short of the declared quantity marked on the package.

In other cases, the term refers to the failure of a group of packages of the same kind, when tested according to AQS or non-AQS (UTML) rules. While a large proportion of the packages in a group may be compliant, if a shortfall has occurred then the whole group of packages cannot be sold and the packer must take remedial action.

AQS Threshold

The AQS threshold is the lot size from which the sample number of pre-packages is selected. The sample will be inspected to decide if the lot conforms to AQS requirements. These are the requirements stipulated for an inspector to assess for compliance with regulation, as distinct from a testing program adopted by industry. These thresholds are given in Table 1.

Table 1. Inspection lots and sampling requirements

 Inspection lot thresholds (number of packages) ​

 Sample size requirements  number of packages)​

 Number of packages in sample allowed to exceed tolerable deficiency ​

 100 to 500​

50​

3​

 501 to 3 200​

80​

5​

 3 201 or more​

125​

7​

AQS Sampling Procedures

An inspector will select a sample from a lot of packages at random in accordance with accepted statistical sampling practice. If the sample selected from a lot of packages produced on a production line:

  • is collected from the production line, the size of the batch from which the sample is collected must be equal to the maximum hourly output of the production line
  • is not collected from the production line, where there is a maximum hourly output of :
  • Edelman Strap Edelman Edelman Sam Toe Sam Toe Strap Sandals Sandals Sam EqIESw
    • >10 000 packages, the size of the batch from which the sample is collected must be equal to the maximum hourly output of the production line
    • ≤10 000 packages, the size of the batch from which the sample is collected must not be more than 10 000 packages.

AQS Test Procedures

Testing for compliance with the AQS involves testing against the following three rules:

  • Rule 1 — the average contents of the packages in the sample must not be less than the declared quantity marked on the packages.
  • Rule 2 — the number of ‘inadequate’ packages (that is, packages with a deficiency greater than the tolerable deficiency listed in Table 2) in the sample does not exceed the number listed in the third column 3 of Table 1.
  • Rule 3 — there must be Sahara 1 Taupe Ricard Leather State High Heels no inadequate packages with a deficiency more than twice the tolerable deficiency.

Table 2. Tolerable deficiencies in actual content of pre-packages

(from regulation 4.36 of the National Trade Measurement Regulations 2009)

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Nominal quantity of product (QnRicard Leather High Sahara 1 State Taupe Heels )​

Tolerable deficiency (T) as a percentage of Qn

Tolerable deficiency (T) in g or mL*​

Weight or volume ​ ​ ​

 0 to 50 (g or mL)​

9​

—​

​ 50 to 100 (g or mL)​

1 Taupe Sahara Leather High Ricard Heels State —​

4.5​

 100 to 200 (g or mL)​

4.5​

—​

​ 200 to 300 (g or mL)​

—​

9​

 300 to 500 (g or mL)​

3​

—​

 500 to 1 000 (g or mL)​

—​​

15​

​ 1 000 to 10 000 (g or mL)​

1.5​

—​​

 10 000 to 15 000 (g or mL)​​​

—​​

150​

 15 000 to 50 000 (g or mL)​

1​

—​​​

Length​​ ​

Qn ≤ 5 m​

No tolerable deficiency allowed​

QnLeather High Taupe Heels 1 State Ricard Sahara > 5 m​

2​

Area​

All Qn

3​

Count​​

QnTaupe Sahara Heels State 1 High Leather Ricard ≤ 50 items​

No tolerable deficiency allowed​

QHigh 1 Heels Sahara State Ricard Taupe Leather nHigh Sahara Heels Taupe 1 Leather State Ricard > 50 items​

1#​

* T values are rounded up to the next: tenth of a g or mL for QnTaupe Heels Ricard Sahara High Leather 1 State ≤ 1 000 g or mL and whole g or mL for Qn > 1 000 g or mL.

# Compute the value of T by multiplying the nominal quantity by 1% and rounding the result up to the next whole number. The value may be larger than 1% due to the rounding but this is acceptable because whole items cannot be divided.

Examples of AQS Testing

This figure shows the typical measurements of packages illustrating the use of Q and T values.

AQS Tests for Weight and Volume

In Table 3, 3 500 packs of butter are identified as the lot. Using Table 1, 125 packs of butter are chosen at random as the sample or threshold. Table 2 shows that a 500 g net package is allowed a T of 3% or 15 g. Therefore an inadequate package (T1 error) is allowed to contain between 485 g and 470 g.

A package weighing less than 470 g would be more than twice the tolerable deficiency and would fail rule 3 (T2 error). The reference test identifies two inadequate packages, no packages with a T2 error and an average net weight of 501 g. Therefore the packs of butter pass all three rules.

If potatoes had been chosen from Table 3, an inspection lot of 148 would have resulted in a sample or threshold size of 50 packages. Table 2 indicates a T of 1.5% (45 g) for a 3 kg bag. The reference test identifies no inadequate T1 packages and one inadequate T2 package. The lot fails the reference test because of the one inadequate T2 package when none are permitted under rule 3.

Table 3 Examples of reference tests for weight or volume

​Product

Quantity​

Lot size​

Sample size​

Sample average​

Number of inadequate T1 packs​

Number of inadequate T2 packs​

Pass or fail​

 Butter​

500 g

3 500​

125​

501 g​

2​

0​

P​

 Wine​

750 mL

130​

50​

752 mL​

0​

1​

F​

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 Sugar​

1.5 kg

5 000​

125​

1.6 kg​

4​

0​

P​

 Potatoes​

3 kg​

148​

50​

3.1 kg​

0​

1​

F​

 

AQS Tests for Number

Consider packages of oysters labelled ‘12 Pacific oysters’. There are a total of 150 packs which make up the lot. Therefore, using Table 1, 50 packages must be chosen at random to form the sample.

Testing identifies that 49 out of 50 packages contain a dozen oysters and one package contains 11 oysters. This means the lot fails because under Table 2 no deficiency is allowed.

A second example involves the inspection of mild steel washers. Each of the 500 packages contains 200 washers, according to their labels. Therefore the sample size is 50 packages chosen at random. Testing identifies five packages that contain 197 washers. Table 2 shows that the tolerable deficiency for packages containing more than 50 items is the nominal quantity (QState Ricard Leather Sahara 1 Heels High Taupe nTaupe Heels Sahara High 1 Leather Ricard State ) x 1% (T = 200 x 1%) or two items. Because the number of inadequate T1 packages permitted would be three (using Table 1) the lot fails the reference test.

For more Information

The main laws covering trade measurement are the National Measurement Act 1960 and the National Trade Measurement Regulations 2009.

For more information contact 1300 686 664, infotm@measurement.gov.au or use our on-line form.

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