000 00248nam a2200073 4500
080 _a
_b
245 _aIS: 1179 - 1967 (Reaffirmed 1991); Specification for equipment for eye and face protection during welding
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1978
300 _a17p
999 _c34665
_d34665