This standard specifies the method for determining chromium and nickel-chromium-iron alloys by the perchloric acid dehydration gra

This standard specifies the method for determining the amount of chromium in chromium and nickel-chromium-iron alloys by ammonium

This standard specifies the method for determining the nickel content of chromium and nickel-chromium-iron alloys by dimethylglyox

This standard specifies the technical requirements for the type, size, parameters, inspection and marking of thyristors used in th

This standard specifies the model preparation method and performance, technology, inspection and acceptance, marking, painting and

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging and storage of motor vehicl

This standard specifies the test methods and conditions for the static natural frequency of steam turbine blades (static frequency