000 00525 a2200241 4500
001 280759
020 _a
041 _aeng
080 _aDBSI 6869 : 1987
245 _aCode of practice for procedures for ensuring the cleanliness of industrial-process measurement and control equipment in oxygen service
250 _a
260 _aLondon
260 _bBSI
260 _c1987
300 _a11 p.
300 _c
856 _u
490 _aBSI 6869 : 1987
700 _a
650 _a
650 _a
942 _cPP
942 _2UDC
999 _c240203
_d240203