ISO 9296:2017
Acoustics — Declared noise emission values of information technology and telecommunications equipment
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.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General definitions
3.2 Definitions relating to acoustics
3.3 Definitions relating to statistics
4 Conformity requirements
4.1 For declaration
4.2 For verification
5 Determination of the noise emission values to declare
5.1 General
5.2 Determination of the declared mean A-weighted sound power level, LWA,m
5.3 Determination of the declared mean A-weighted emission sound pressure level, LpA,m
5.4 Determination of the statistical adder for verification, Kv
6 Presentation of declared noise emission values
6.1 Required information
6.2 Additional information
7 Verification of the statistical upper limit A-weighted sound power level, LWA,c
7.1 General
7.2 Verification of LWA,c for a batch of equipment
Annex A (normative) Procedure for determining the statistical adder for verification, Kv
Annex B (informative) Examples of noise emission declarations
Annex C (informative) Character of noise
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General definitions
3.2 Definitions relating to acoustics
3.3 Definitions relating to statistics
4 Conformity requirements
4.1 For declaration
4.2 For verification
5 Determination of the noise emission values to declare
5.1 General
5.2 Determination of the declared mean A-weighted sound power level, LWA,m
5.3 Determination of the declared mean A-weighted emission sound pressure level, LpA,m
5.4 Determination of the statistical adder for verification, Kv
6 Presentation of declared noise emission values
6.1 Required information
6.2 Additional information
7 Verification of the statistical upper limit A-weighted sound power level, LWA,c
7.1 General
7.2 Verification of LWA,c for a batch of equipment
Annex A (normative) Procedure for determining the statistical adder for verification, Kv
Annex B (informative) Examples of noise emission declarations
Annex C (informative) Character of noise
Bibliography