Photography. Determination of residual thiosulfate and other related chemicals in processed photographic materials. Methods using iodine-amylose, methylene blue and silver sulfide— 28 стр.
Safety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar; German version EN 14382:2005— 84 стр.
Photography. Determination of residual thiosulfate and other related chemicals in processed photographic materials. Methods using iodine-amylose, methylene blue and silver sulfide— 24 стр.