Acoustics. Determination of sound insulation performances of enclosures. Part 2. Measurements in situ (for acceptance and verification purposes)— 20 стр.
Acoustics. Measurement of sound insulation in buildings and of building elements, Laboratory measurement of airborne sound insulation of building elements— 26 стр.
Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles (ISO 12100-2:2003) German version EN ISO 12100-2:2003— 40 стр.
Textile machinery - Safety requirements - Part 1: Common requirements (ISO 11111-1:2009); German version EN ISO 11111-1:2009, Corrigendum to DIN EN ISO 11111-1:2009-12— 2 стр.