Designation: A 967 – 01e 1Standard Specification forChemical Passivation Treatments for Stainless Steel Parts1This standard is issued under the fixed designation A 967; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e ) indicates an editorial change since the last revision or reapproval.e 1 NOTE—Paragraph 3.1.1.5 was deleted editorially in April 2002. Paragraph 10.2 was corrected editorially in April 2002.1. Scope1.1 This specificationcovers several different types ofchemical passivation treatments for stainless steel parts. Itincludes recommendations and precautions for descaling,cleaning, and passivation of stainless steel parts. It includesseveral alternative tests, with acceptance criteria, for confirma-tion of effectiveness of such treatments for stainless steel parts.1.2 Practices for the mechanical and chemical treatments ofstainless steel surfaces are discussed more thoroughly inPractice A 380.1.3 Several alternative chemical treatments are defined forpassivation of stainless steel parts. Appendix X1 gives somenonmandatory information and provides some general guide-lines regarding the selection of passivation treatment appropri-ate to particular grades of stainless steel but makes norecommendations regarding the suitability of any grade, treat-ment, and acceptance criteria for any particular application orclass of applications.1.4 The tests in this specification are intended to confirm theeffectiveness of passivation, particularly with regard to theremoval of free iron and other exogenous matter. These testsinclude the following practices:1.4.1 Prac...
