IS 11802 : 1986 Method of determination of diffusible hydrogen content of deposited weld metal from covered electrodes in welding mild and low alloy steels

1 Scope

1.1 This standard covers the procedures for determination ofcontent of diffusible hydrogen in deposited weld metal arising fromthe use of shielded metal arc electrodes for welding mild and lowalloy steels by mercury and glycerin methods. For glycerin method,the values reported shall be in terms of evaluation by mercurymethod using the formula given in Appendix A. The glycerin methodshall be used as a routine method. The mercury method shall be usedas a referee method in case of disputes, in addition to being usedas a routine method.

2 References

IS 226 : 1975Specification for structural steel (standard quality)

IS 812 : 1957Glossary of terms relating to welding and cutting ofmetals

IS 2002 : 1982Specification for steel plates for pressure vessels forintermadiate and low temperature service including boilers

IS 2062 : 1984Specification for weldable structural steel