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ASTM D5351-93(2009)

Historical Reaffirmation

Standard Test Method for Determination of Organically Combined Sulfuric Anhydride by Extraction Titration, Test Method B

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1.1 This test method covers the determination of the organically combined sulfuric anhydride existing in a sample of sulfated oil by extracting the undecomposed sulfated fat and other fatty matter over an acidulated, concentrated salt solution, boiling the residue with sulfuric acid after evaporating the solvent, and titrating the products of reaction. This test method is applicable only to sulfated oils that split off their combined SO3 upon boiling with mineral acids, including samples containing sodium acetate or other compounds that cannot be accurately titrated in water solution with methyl orange as the indicator. This test method was derived from Test Methods D 500, Sections 20 through 24, and ALCA Method H-43.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This test method is intended for the determination of organically combined sulfuric anhydride in sulfated oils.

SDO ASTM: ASTM International
Document Number D5351
Publication Date April 1, 2009
Language en - English
Page Count 2
Revision Level 93(2009)
Supercedes
Committee D31.08
Publish Date Document Id Type View
Dec. 1, 2021 D5351-93R21 Reaffirmation
April 1, 2017 D5351-93R17 Reaffirmation
April 1, 2009 D5351-93R09 Reaffirmation
May 10, 2003 D5351-93R03 Reaffirmation
Oct. 10, 1997 D5351-93R97 Reaffirmation