Preparation of steel substrates before application of paints and related products - Specifications for non-metallic blast-cleaning abrasives - Part 9: Staurolite (ISO 11126-9:1999); German version EN ISO 11126-9:2004— 11 стр.
Technical requirements and verification for watches and watch movements; watches with electrical energy source, frequency of oscillating system <kleiner => 1000 Hz— 2 стр.
Technical requirements and verification for clocks and clock movements with electrical energy source; frequency of oscillating system <kleiner => 1000 Hz— 3 стр.