Acoustics; determination of sound power levels of noise sources; precision methods for broad-band sources in reverberation rooms (ISO 3741:1988); german version EN 23741:1991— 16 стр.
Aerospace series - Fibre reinforced plastics - Standard procedures for conditioning prior to testing unaged materials; German and English version EN 2743:2001— 13 стр.
Aerospace - Fabric sheet and tape prepreg from glas fibres and non-reactive thermoplastics - Technical specification; Text in German and English— 36 стр.