SR EN ISO 4871:1999

Acoustics. Declaration and verification of noise emission values of machinery and equipment

This International Standard - gives information on the declaration of noise emission values, - describes acoustical and product information to be presented in technical documents for the purposes of noise emission declaration, and - specifies a method for verifying the noise emission declaration. It is applicable to machinery and equipment. The values to be used for the purposes of noise emission declaration are either declared single-number noise emission values, Ld, or declared dual-number noise emission values, L and K. L is a noise emission value determined directly from measurements and K is the uncertainty associated with those measurements. Ld is the sum of L and K represents an upper limit which values from repeated measurements are unlikely to exceed at a given confidence level ; Ld corresponds to the stated or labelled value, Lc, defined in ISO 7574-1. The two forms of noise declaration are alternative means of representing any or all of the A-weighted sound power level, LWA, the A-weighted emission sound pressure level at specified positions, LpA, and the C-

General information

Status : Withdrawn
Approval date : 6/30/1999
Publish date : 7/1/1999
Withdrawal date : 1/29/2010
Number of pages : 26
ICS : 17.140.20 Noise emitted by machines and equipment
Technical Committee : 274 - Human protection against noise and mechanical vibration

Relations with other standards:

Normative reference SR EN ISO 3744:1997
Normative reference SR EN 27574-4:1994
Normative reference SR ISO 1996-1:1995
Normative reference SR EN ISO 9614-1:2001
Normative reference SR EN 23741:1996
Normative reference SR EN ISO 3743-1:1997
Normative reference SR EN 27574-1:1994
Normative reference SR ISO 9296:1997
Normative reference SR EN 27779:1994
Normative reference SR EN 27574-2:1994
Normative reference SR EN ISO 3743-2:1998
Normative reference SR EN ISO 3746:1998
Replaced by SR EN ISO 4871:2010