The Weights and Measures Act 1987 determines trade law when the weight or measurement of a product being traded is important to that trade or sale. Wedderburn are able to assist you with choosing an approved scale as well as ongoing verification of accuracy.
When trading by weight in New Zealand, it is a legal requirement to have an approved scale that carries a mark of verification. It is also strongly recommended retailers maintain current Certificates of Accuracy for their weighing equipment.
When used for trade, your measuring equipment must be:
Random checks on retailers, importers and packers can be carried out by Trading Standards Officers. Should your equipment not meet requirements, you could face considerable fines.
Approved Scale Type
Before you buy, check that the scale you will be trading from is an approved type. Approved scales will have a verification mark in the form of either a crown or the letters “AP” followed by a number on a seal or sticker. Good practice also suggests you should always check to ensure the seal is in place after the scale has been serviced.
Accredited Persons are able to test equipment for weighing and measuring goods in compliance with weights and measures legislation. They are able to issue a Certificate of Accuracy which is valid for 12 months.
Other Requirements To Note
Wedderburn is authorised to certify approved equipment legal for trade use. Our large force of field technicians are trained and approved as Accredited Persons to issue Certificates of Accuracy to the Weights and Measures Regulations for this purpose.
We can also provide full calibrations, making any necessary adjustments or repairs, often all in the same visit.
Regular technical service is essential to maintain accuracy and reliability as temperature variations, ageing, power fluctuations or moving the equipment may alter your scale accuracy.
Best practices for keeping scales accurate include;
The legalities surrounding Trading by Weight are outlined on the Ministry of Business, Innovation and Employment website. This guide is not intended to provide legal advice or replace in anyway whatsoever information provided by the Ministry of Business, Innovation and Employment.
Wedderburn Scales Ltd is an established weighing solutions company with more than 120 years industry experience. Our Accreditation Certificate can be viewed on our website.
We are committed to providing products and services which are of a constantly high standard and ensuring these standards are monitored and maintained at all times. Part of that commitment ensures all staff involved in calibration work have appropriate training and qualifications.
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