Acoustics. Preferred frequencies1 Scope This International Standard specifies preferred frequencies for acoustical measurements. The preferred frequencies are based on the R10 series of preferred numbers in ISO 3 and the reference frequency of 1 000 Hz. For most acoustical measurements and presentations of data, a frequency spacing based on a constant percentage increment is generally preferred and the test frequencies then form a geometric series. For certain acoustical

It applies to all types of leather below 3

and detailed specification of the DAT logo

It provides guidance for users (as defined in ISO/IEC 2382‑37) of biometric recognition systems on specific requirements in relation to deployments when children are included as subjects in the biometric process

It covers the principles of determining heat release and the parameters used to report heat release data

1 - Electrical insulation tests for equipment in aircraft for

Who is BS EN 62827-1 - Wireless power transfer system for

Standardization approaches for exchange of finger image quality

Who is BS 2866 - Determining the mass of wrap for

11 –Footwear sole heat testing about

This Standard provides requirements and tests for the construction and performance of cable glands

It specifies technicalities such as terms

BS EN 13177:2010 Chemicals used for treatment of water intended for human consumption