CNIS GB/T 223.12-91 Methods for chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content. Формат поставки-PDF. Язык стандарта-Английский
Другие Стандарты CNIS
CNIS GB/T 3079-93 Alloy structure steel wires
CNIS GB/T 9123.26-88 Steel pipe blank flanges with tongue and groove face for PN 4.0MPa (40 bar)
CNIS GB 3423-82 Seamless steel tubes standard use diamond core drilling
CNIS GB/T 223.50-94 Methods for chemical analysis of iron, steel and alloy. The phenylfluorone-CTMA...
CNIS GB/T 10751-89 Marine oval-shaped steel pipe flanges,weld-on
CNIS GB/T 3206-82 Carbon constructional quality steel wires