IS 9000 : Part 21 : 1985 Basic environmental testing procedures for electronic & electrical items: Part 21 Acoustics noise test
| UDC 621.38.038 + 621.31 : 621.317.39 : 534.836.2 | LTD 1 |
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| Reaffirmed 2019 |
1. SCOPE
1.1 This standard ( Part 21 ) deals with the procedure for acoustic noise test for electronic and electrical items as a part of basic environmental testing procedures.