. . . . . "Specifications"@en . "Welding of austenitic stainless stell tube and pipe systems in sanitary (hygienic) applications"@en . . . . . . . "Specification for welding of austenitic stainless steel tube and pipe systems in sanitary (hygienic) applications prepared by AWS D18 Committee on Welding in Sanitary Applications under the direction of AWS Technical Activities Committee"@en . . .