RULESFORMATERIALSANDWELDING2007PART2RuleChangeNotice(2007)Theeffectivedateofeachtechnicalchangesince1993isshowninparenthesisattheendofthesubsection/paragraphtitleswithinthetextofeachPart.Thisdateisbasedonthedateofpurchaseorderofthematerials.Unlessaparticulardateandmonthareshown,theyearsinparenthesesrefertothefollowingeffectivedates:(2000)andafter1......
