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PDF Standards BS 2G 100-1:1961

Specification for general requirements for electrical equipment and indi cating instruments for aircraft. Environmental and operating conditions-Identification, declarations and construction
standard by BSI Group, 12/13/1961

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BS

PDF Standards BS 2497-7:1988

Standard reference zero for the calibration of pure tone air conduction audiometers-Specification for a standard reference zero at frequencies intermediate between those given in Parts 5 and 6 of BS 2497
standard by BSI Group, 02/29/1988

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