IEC 60704-2-6:2012

IEC 60704-2-6 ®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination
of airborne acoustical noise –
Part 2-6: Particular requirements for tumble dryers

Appareils électrodomestiques et analogues – Code d’essai pour la détermination
du bruit aérien –
Partie 2-6: Règles particulières pour les sèche-linge à tambour

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IEC 60704-2-6 ®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination

of airborne acoustical noise –

Part 2-6: Particular requirements for tumble dryers

Appareils électrodomestiques et analogues – Code d’essai pour la détermination

du bruit aérien –
Partie 2-6: Règles particulières pour les sèche-linge à tambour

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 17.140.20; 97.060 ISBN 978-2-8322-0063-6

– 2 – 60704-2-6  IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
1.1 Scope . 6
1.2 Object . 6
1.3 Measurement uncertainty . 6
2 Normative references . 7
3 Terms and definitions . 7
4 Measurement methods and acoustical environments . 8
4.2 Direct method . 8
4.3 Comparison method . 8
5 Instrumentation . 8
6 Operation and location of appliances under test . 8
6.1 Equipping and pre-conditioning of appliances . 8
6.2 Supply of electric energy and of water or gas . 9
6.3 Climatic conditions . 9
6.4 Loading and operating of appliances during tests . 9
6.5 Location and mounting of appliances . 10
6.101 Standard test programme for noise measurements . 10
6.102 Standard test load for noise measurements . 11
7 Measurement of sound pressure levels . 12
7.1 Microphone array, measurement surface and RSS location for essentially

free-field conditions over reflecting plane(s) . 12
7.4 Measurements . 12
8 Calculation of sound pressure and sound power levels . 13
9 Information to be recorded. 13
9.6 Equipment and pre-conditioning of appliance under test . 13
9.7 Electric supply, water supply, etc. . 13
10 Information to be reported . 13
Annexes . 15
Annex A (normative) Standard test table . 15

Figure 101 – Standard Exhaust . 14

Table 101 – Standard deviations of sound power levels . 7
Table 102 – Standard deviations for declaration and verification . 7

60704-2-6  IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION
OF AIRBORNE ACOUSTICAL NOISE –

Part 2-6: Particular requirements for tumble dryers

FOREWORD
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International Standard IEC 60704-2-6 has been prepared by subcommittee 59D: Home
laundry appliances, of IEC technical committee 59: Performance of household electrical
appliances.
This third edition cancels and replaces the second edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) it does not contain the description of an appropriate test enclosure which has been
incorporated in Part 1;
b) it clarifies that only appliances designed for front loading and specified by the
manufacturer for building-in, under a counter or placing under a worktop between cabinets
(under-counter types) shall be placed in a test enclosure.

– 4 – 60704-2-6  IEC:2012
The text of this standard is based on the following documents:
FDIS Report on voting
59D/394/FDIS 59D/397/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-6 is intended to be used in conjunction with the third edition (2010) of
IEC 60704-1, Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise – Part 1: Genera
...