BS-1821 › Complete Document History
Specification for Class I Oxy-Acetylene Welding of Ferritic Steel Pipework for Carryi


Obsolete Revision Information:
   AMD 9738 - AMENDMENT 2 FOR 1982 EDITION - April 15, 1999
   AMD 4501 - AMENDMENT 1 FOR 1982 EDITION - March 1, 1984
   1982 EDITION - REAFFIRMED IN 2001 - Jan. 1, 1982