Acoustics. Declared noise emission values of information technology and telecommunications equipment
Acoustics. Declared noise emission values of information technology and telecommunications equipment
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1 Scope This document is applicable to information technology and telecommunications equipment . It specifies:
a) for a batch of equipment , the method for determining the following values:
— the declared mean A-weighted sound power level , L W A,m ;
— the declared mean A-weighted emission sound pressure level , L p A,m ;
— the statistical adder for verification , K v ;
— the statistical upper limit A-weighted sound power level , L W A,c ;
b) how acoustical and product information is to be published electronically or in hard-copy format in technical documents or other product literature supplied to users by the manufacturer or declarer;
c) the method for verifying ...
Другие стандарты BS