BS 89-9:1990 Direct acting indicating analogue electrical measuring instruments and their accessories. Recommended test methods (AMD 8832)
General test conditions, test methods, error tests, variation tests and other tests. Contains index of tests with reference to other Parts of BS 89.
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
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