Methods of measuring the characteristics of reproducing equipment for digital audio compact discs; (IEC 61096:1992/A1:1996); Amendment A1; German version EN 61096:1993/A1:1996— 10 стр.
Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 1: Noise control strategies (ISO 11690-1:1996); German version EN ISO 11690-1:1996— 23 стр.