Domestic and foreign valve industry standard code list

China's standard code

GB National Standard

MT Coal Industry Standard

GB/T country recommendation

HB Aviation Industry Standard

GBn National Standard (Internal Release)

QJ Aerospace Industry Standard

GJB National Military Standard

QB, SG Light Industry Standard

ZB industry standard (professional standard)

JZ, JG Ministry of Environmental Protection Standards

ZBn industry standard (internal release)

CB China Shipbuilding Corporation Standard

ZJB professional military standard

LD Labor and Personnel Standard

JB Machinery Industry Standards (Original) Ministry of Machinery Industry Standards

JC National Building Material Bureau Standard

JB/Z (former) Ministry of Machinery Industry Guidance Documents

JJC National Bureau of Metrology Standard

EJ (former) Nuclear Industry Standard

CAS China Standards Association Standard

YB Metallurgical Standard

CVA China valve industry standard

HG Chemical Industry Standard

Q/TH (original) Ministry of Machinery Industry General standard for chemical general machinery

SY (formerly) Ministry of Oil Standards

JB/TQ Ministry of Machinery and Electronics Industry General Standard for Internal Machinery Industry

SD Hydroelectric Power Standard

H Universal Design Standards for High Pressure Pipes, Fittings and Fasteners

Foreign standard code

ISO International Standard

AISI American Iron and Steel Institute Standard

ANSI American National Standard

API American Petroleum Institute Standard

BS British National Standard

MSS Standards Institute for Valves and Fittings Manufacturers' Standards, USA

DIN German national standard

AWS American Welding Association Standard

NF French National Standard

ASI American Standard Institute Standard

JIS Japanese Industrial Standard

MIL U.S. Military Standard

ASME ASME Standard

JPI Japan Petroleum Institute Standard

ASTM American Materials Testing Association Standard