ISO 9296:2017

ISO 9296:2017 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, LWA,m;
-      the declared mean A-weighted emission sound pressure level, LpA,m;
-      the statistical adder for verification, Kv;
-      the statistical upper limit A-weighted sound power level, LWA,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 the noise emission values that are declared by the manufacturer or declarer.