Acoustics. Declared noise emission values of information technology and telecommunications equipment Ingestion-build-117251 The basis of risk assessment

The basis of risk assessment for estimating durability has been revised (see Clause 5)

clean-up by gel permeation chromatography [6]

For classification purposes

The object of BS 5724-3

Acoustics. Declared noise emission values of information technology and telecommunications equipment Ingestion-build-117251 The basis of risk assessment1 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, 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