DIN EN 60704-2-7:2000-08

INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Measurement methods and acoustical environments
5 Instrumentation
6 Operation and location of appliances under test
7 Measurement of sound pressure levels
8 Calculation of sound pressure and sound power levels
9 Information to be recorded
10 Information to be reported
Figure 101
Annexes
A Guidelines for the design of simple test rooms with
    essentially free-field conditions
B Standard test table
ZA (normative) Normative references to international
    publications with their corresponding European
    publications

Applicable to electrical fans (including accessories and component parts) for household and similar use, designed for a.c. or d.c. supply. Motor, impeller and housing, if included, form a single unit. Applicable to table, pedestal, ceiling and partition fans, but not to fans which are part of a ventilation system, designed exclusively for industrial purposes, part of an appliance such as cooling fans or fans with extra functions, such as heating or humidifying).