This standard applies to membrane presses with rated exhaust pressure not higher than 25MPa. Pressurized membrane presses with rat

This standard specifies the inspection, test methods and inspection rules for gas cylinder valves. This standard applies to gas cy

This standard specifies the flaw detection method and defect grade classification using the Type A pulse reflection ultrasonic fla

This standard specifies the liquid penetrant inspection method for surface opening defects and the grade classification of defect

This standard specifies the structural type, technical requirements, test methods, marking, packaging, transportation and storage

This standard specifies the terminology, structural type, technical requirements, test methods and inspection rules, marking and s

This standard specifies the general requirements, test system, test method and performance requirements for valve fire resistance

JB/T 6897-2000 This standard is a revision of JB/T 6897-1993 "Cryogenic Liquid Tank Truck". The revised standard has major changes