简述：不同管件参照的标准不同

bs 4677-1984   
specification for arc welding of austenitic stainless steel pipework for carrying fluids
输送液体用奥氏体不锈钢管件的电弧焊规范

cj/t 152-2001   
stainless steel press-fittings
不锈钢卡压式管件

cj/t 232-2006   
light gauge stainless steel pipes and insert.pressfittings
薄壁不锈钢内插卡压式管材及管件

din 11867-2005   
elbows for pigging systems, welding fittings in stainless steel, for aseptic, chemical and pharmaceutical industries
无菌、化学和制药工业的生铁系统用弯头、不锈钢焊接管件

din 32676-2001   
fittings for the food, chemical and pharmaceutical industries - clamp connections for stainless steel tubes - weld-on type
饮食业、化工业和医药业用管件.不锈钢管卡箍连接.焊接式

ej/t 403-1999   
specification for primary system arc-welded stainless steel larger size pipes and fittings for pressurized water reactor nuclear power plants
压水堆核电厂一回路系统大口径电弧焊接不锈钢卷制钢管及管件技术条件

ej/t 404-1999   
specification for primary system seamless stainless steel butt-welding fittings for pressurized water reactor nuclear power plants
压水堆核电厂一回路系统无缝对接焊不锈钢管件技术条件

gb/t 19228.1-2003   
stainless steel press fittings
不锈钢卡压式管件

gb/t 19228.2-2003   
light gauge stainless steel pipes for stainless steel press-fittings
不锈钢卡压式管件连接用薄壁不锈钢管

gb/t 19228.3-2003   
o-rings for stainless steel press-fittings
不锈钢卡压式管件用橡胶o型密封圈

qb/t 2003-1994   
食品工业用不锈钢对缝焊接管件