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IEC 60651:1979/AMD2:2000 ed1.0

Заменен
Amendment 2 - Sound level meters — 21 стр.
Specifies requirements for sound level meters with respect to their immunity to power- and radio-frequency fields and to electrostatic discharge, and the permitted radio-frequency emissions, together with test procedures to demonstrate conformance to the specifications of this standard.
ICS
17.140.50 Electroacoustics. Including sound level meters / Электроакустика. Включая слуховые аппараты и шумомеры