ASME SFA-5.12+ Y! h5 o' t8 |2 d1 c0 Y& d
用于弧焊和切断的钨和钨合金电极规范1 u; x% f5 D& `# |2 [# F% L
Specification for Tungsten and Tungsten-Alloy Electrodes for Arc Welding and Cutting 3 I g) j- X4 D m- @) v9 |, B3 T: r) X8 ?0 S
ISO 6848:2004 specifies requirements for classification of nonconsumable tungsten electrodes for inert gas shielded arc welding, and for plasma welding