Measurement of airborne noise emitted by machines; enveloping surface method; electric tools; additional specifications for impact screw drivers— 4 стр.
Pipe joints and their elements of glass fibre reinforced polyester resins - Part 7: Bushings, flanges, flanged and butt joints; general quality requirements and test methods— 7 стр.
Spotlights for film and television studios, stages and photographic use - Part 24: Fixing elements for projectors and luminaires, main reflector support, pipe clamp, pivot plug, socket for pivot plug for photo-luminaires and reportage-luminaires— 7 стр.