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Jewellers and jewellery collectors often need to determine the weights of precious metals such as gold and silver, gems, precious stones and pieces of jewellery in order to assess their value. Jewellers scales specifically designed to handle these small items are ideally suited to the task, but if the result is to be used to set a price or measure out products for sale, then the scales must have been marked as legal for trade. Class II scales approved for commercial purposes should fulfil the needs of jewellery buyers and sellers alike. Any weighing equipment that is being used for commercial purposes must be approved by the Trading Standards authority. In order to gain this approval, the equipment must undergo testing by an approved qualifier or an inspector of weights and measures. Scales that have passed this testing will be marked as legal for trade. This means that they are considered sufficiently accurate to be relied upon when financial transactions are being made. Scales can also be classified into different accuracy classes according to how precisely they can measure weights. Jewellers will often use scales that are in accuracy class II. A class II ranking indicates an accuracy of 10,000 to 100,000 divisions. Anyone who is weighing any kind of item to be sold by weight is legally required to ensure that the scales they are using have been marked as fit for trade. Jewellers' class II scales that are suitable for this purpose will carry a sticker or stamp showing that they can legally be used commercially. Scales that are not suitable for buying and selling will usually be marked as not fit for trade. Even if this warning is not given, these scales are not suitable for commercial use if there is no legal for trade stamp or sticker. Older jewellers' scales will carry the crown stamp, but most new class II scales will carry a green sticker bearing the letter "M" along with a sticker identifying the approved qualifier who passed the equipment as legal for commercial uses. The reason this legal requirement is so important is that it ensures transactions are fair for both the buyer and the seller. Legal for trade class II scales can be relied upon to provide accurate measurements and the official stamp ensures that both parties can be confident that the equipment is to be trusted. It is a legal requirement to use approved class II scales when a sale is being made, but jewellers' scales can also be useful outside of commercial transactions because their accuracy has been proven. For example, many collectors choose to use legal for trade scales when assessing the value of items in their own collections. Take a look a the Class II trade approved jewellery scale< /a>selection at Oneweigh.
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