Department Weights & Measures

The Department of Weights and Measures / National Measurement Institute (NMI) is responsible for regulating and monitoring the measurements that are provided to consumers, including growlers and squealers.

As growlers and squealers are not considered to be measuring instrument but instead just a receptacle there is a need to batch test our growlers and squealers to ensure we are providing the correct amount when filling them for customers. Overfilling is considered OK as when this happens consumers are "winning" by getting more than they pay for, under filling is not OK.

To batch test out growlers we use approved NMI Acoroc glassware/jub of different volumes to batch test the final volume of our growlers and squealers.

There are 5 vessels used for testing:

200ml glass

360ml glass

390ml glass

425ml glass

1140 jug

To batch test squealers use this method:

1 x 1140ml jug

Plus 360ml glass

Less 3 x 200ml glass

= 900ml

To batch test growlers use this method:

4 x 425ml glass

Plus 390ml glass

Less 200ml glass

= 1890ml

Once a batch of growlers has been tested mark them so as to know where the fill line is, this can then be used as a reference in future if need be. The fill line will be on or above the marked fill lines that are embossed on the squealers/growlers.

Glassware is found in store on the growler and squealer shelves.

For more information about growlers and squealers you can visit the NMI website or read their fact sheet.

http://www.measurement.gov.au/Industry/business/Documents/SaleBeer.pdf