BS-4870-1 › Complete Document History
Specification for approval testing of welding procedures. Fusion welding of steel


Obsolete Revision Information:
   AMD 6293 - AMENDMENT 4 FOR 1981 EDITION - Feb. 28, 1990
   AMD 5161 - AMENDMENT 3 FOR 1981 EDITION - Oct. 31, 1986
   AMD 4730 - AMENDMENT 2 FOR 1981 EDITION - Sept. 28, 1984
   AMD 4322 - AMENDMENT 1 FOR 1981 EDITION - July 29, 1983
   1981 EDITION - WITHDRAWN, 9/15/1992 - March 31, 1981
   1974 EDITION - OBSOLETE EDITION - Jan. 1, 1974