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The phrase, legal for trade scale means, a weighing scale, which is granted the legal permission to be used for commercial operation. Such a scale is used for weight measurement in a manufacturing, retail or trading facility where accuracy in the weight is of paramount importance. The National Conference on Weights and Measures (NCWM) runs a program called National Type Evaluation Program or NTEP to oversee the enforcement of guidelines laid out in handbook 44 of National Institute of Standards and Technology (NIST). The program ensures that manufacturers, users and officials from the department of weights and measures interact and cooperate with each other, and implement the guidelines of the program so that manufacturer can manufacture and sell the legal for trade scale for commercial purpose, without compromising the quality. A legal for trade scale ensures fairness and transparency during the commercial weighing operation because it has a “legal for trade” indent marked on it. This mark guarantees accuracy in measurement because the concerned weighing scale is manufactured and tested according to the guidelines of the program. To make the weighing process more transparent, the weighing scale, which does not have a dual display unit, is marked as “not for direct sales”. This latest addition, aims to make it compulsory for all such scales to have a dual display unit instead of a single unit. A dual display unit allows the customer to have a clear and direct view of the weight reading. Hence from now on legal for trade scales, which have a dual display unit, will be used where both end user and customer are present during the weighing operation. Before a weighing scale is indented with the legal for trade scale mark it has to under go a series of stringent tests. The scale is subject to testing under different environments and all the results are noted. The features advertised by the manufacturer are thoroughly checked. If they conform to the program guidelines the scale is granted the status of, legal for trade scale and can be used for commercial operations. In the end a legal for trade scale makes weight measurement very easy, precise and transparent for end users and customers. You can see a range of legal for trade scales at http://denisson01.bravejournal.com/entry/102491
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