NF EN ISO 140-8 : 1997

Superseded

ACOUSTICS - MEASUREMENT OF SOUND INSULATION IN BUILDINGS AND OF BUILDING ELEMENTS - PART 8: LABORATORY MEASUREMENTS OF THE REDUCTION OF TRANSMITTED IMPACT NOISE BY FLOOR COVERINGS ON A HEAVYWEIGHT STANDARD FLOOR

Superseded date

01-03-2013

Published date

12-01-2013

Publisher

Association Francaise de Normalisation

1 Scope
2 Normative references
3 Definitions
4 Equipment
5 Test arrangement
    5.1 General arrangement
    5.2 Details of test arrangement
          5.2.1 Source room
          5.2.2 Receiving room
          5.2.3 Test floor
          5.2.4 Condition of floor surface
    5.3 Preparation and installation of test specimen
          5.3.1 Classification
          5.3.2 Installation
          5.3.3 Size and number of specimen
    5.4 Influence of temperature and humidity
6 Test procedure and evaluation
    6.1 Generation of sound field
    6.2 Measurement of impact sound pressure level
          6.2.1 Microphone positions
          6.2.2 Averaging time
    6.3 Frequency range of measurements
    6.4 Measurement of reverberation time and evaluation
          of the equivalent sound absorption area
    6.5 Correction for background noise
    6.6 Position of the tapping machine
          6.6.1 Adjustment of the tapping machine
          6.6.2 Materials of category I
          6.6.3 Materials of category II and III
7 Precision
8 Expression of results
9 Test report
Annexes
A Requirements for the tapping machine
B Form for the expression of results
C Bibliography

Defines a procedure for measurement of the acoustic properties of floor coverings from the view-point of reduction of impact noise transmission. Defines a procedure for determination of the noise reducing value of a floor covering under standard test conditions. This test is limited to the definition of methods for the physical measurement of sound originating from an artificial source (standard tapping machine) under laboratory conditions and is not directly related to the subjective significance of the results. Applies to all floor coverings, both single- or multi-layered, as installed on a standard floor. Multi-layered coverings can be factory- or test-site- assembled. Does not provide for allowing the assessing of effectiveness of a floor covering in situ.

DocumentType	Standard
PublisherName	Association Francaise de Normalisation
Status	Superseded

Standards	Relationship
UNE-EN ISO 140-8:1998	Identical
UNI EN ISO 140-8 : 1999	Identical
DIN EN ISO 140-8:1998-03	Identical
EN ISO 140-8 : 1997	Identical
I.S. EN ISO 140-8:1998	Identical
BS EN ISO 140-8:1998	Identical

NFS 31 074 : 2002	ACOUSTICS - MEASUREMENT OF SOUND INSULATION IN BUILDINGS AND OF BUILDING ELEMENTS - LABORATORY MEASUREMENT OF IN ROOM IMPACT NOISE BY FLOOR COVERING PUT IN THIS ROOM
NFP 63 201 : 2004	PARQUET - PARQUET TO BE NAILED - PART 1: TECHNICAL SPECIFICATION - PART 2: SPECIAL CLAUSES
NFP 61 203 : 2003	INSTALLATION OF INSULATING UNDERCOATS UNDER FLOATING SCREED OR PLATES, SLAB AND UNDER TILES - TECHNICAL SPECIFICATIONS