球閥（Q-F）常用標(biāo)準(zhǔn)：NF E29-350-2003 industrial valves. Steel ball valve, ball valve and check valve closing
NF E29-466-1987 industrial valves. Rotary valve. Brass ball valve. Norms
NF E29-354-2003 industrial valves. Cast Iron Ball Valve
NF E29-465-1986 industrial valves. Rotary valve. Copper ball valve. Norms
NF D36-406-2004 buildings with valves. Building drinking water with copper alloy and stainless steel ball hand. Trials and requirements of the
NF E29-335-2003 oil and gas industry with the size of DN 100 and smaller steel gate valve, ball valve and check valve
NF E29-139-1998 gas installations in buildings and dead ball by hand at the end of taper cock
BS EN 13709-2003 industrial valves. Steel ball valve, ball valve and check valve closing
BS EN 13789-2003 industrial valves. Cast Iron Ball Valve
原文：NF E29-350-2003 工業(yè)用閥.鋼制球閥、球狀截止閥和止回閥
NF E29-466-1987 工業(yè)閥門(mén).旋轉(zhuǎn)閥.黃銅球閥.規(guī)范
NF E29-354-2003 工業(yè)用閥.鑄鐵球閥
NF E29-465-1986 工業(yè)閥門(mén).旋轉(zhuǎn)閥.銅鋁球閥.規(guī)范
NF D36-406-2004 建筑物用閥.建筑物內(nèi)飲用水給水用手動(dòng)銅合金和不銹鋼球閥.試驗(yàn)和要求
NF E29-335-2003 石油和天然氣工業(yè)用尺寸為DN 100及更小的鋼閘閥、球閥和止回閥
NF E29-139-1998 建筑物氣體裝置用手工操作球閥和死底錐形旋塞
BS EN 13709-2003 工業(yè)用閥.不銹鋼球閥、球狀截止閥和止回閥
BS EN 13789-2003 工業(yè)用閥.鑄鐵球閥
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