BSI - BS 90
Specification for Direct-acting electrical recording instruments and their accessories
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| Organization: | BSI |
| Publication Date: | 28 February 1975 |
| Status: | active |
| Page Count: | 50 |
| ICS Code (Measurement of electrical and magnetic quantities): | 17.220.20 |
scope:
Defines and classifies accuracy classes, methods of determining intrinsic error and variations for measured quantity and time-keeping, lists influence quantities, electrical and mechanical requirements, marking requirements and symbols. Concept used and effect of friction between marking device and chart explained in appendices.
Document History
BS 90
February 28, 1975
Specification for Direct-acting electrical recording instruments and their accessories
Defines and classifies accuracy classes, methods of determining intrinsic error and variations for measured quantity and time-keeping, lists influence quantities, electrical and mechanical...
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