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ASTM D820-93(2003)

Historical Reaffirmation

Standard Test Methods for Chemical Analysis of Soaps Containing Synthetic Detergents

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1.1 These test methods cover procedures for the chemical analysis of soaps containing synthetic detergents.

1.2 The analytical procedures appear in the following order:

Sections
Moisture and Other Matter Volatile at 105°C (Oven Method)5 and 6
Free Alkali or Free Acid7 and 8
Anhydrous, Salt-Free, Soda Soap9-12
Alcohol-Soluble Matter13 and 14
Matter Insoluble in Water15
Total Alkalinity of Matter Insoluble in Alcohol (Alkaline Salts)16 and 17
Sodium Silicate18-20
Phosphates21-28
Phosphate (Colorimetric Method Using Molybdenum Blue)29-34
Unsaponified and Unsaponifiable Matter35-39
Free Fatty Matter40
Chlorides in Alcohol-Soluble Matter41-43
Rosin (McNicoll Method)44-47
Synthetic Detergent (by Difference)48
Neutral, Inorganic Salts49

1.3 This standard does not purport to address all of the safety problems, 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.


These test methods detail the standard procedures for the chemical analysis of soaps containing synthetic detergents. The analytical procedures include the determination of the following chemical properties and substances: moisture and other matter volatile at a specified temperature; free alkali or free acid; anhydrous, salt-free soda soap; alcohol-soluble matter; matter insoluble in water; total alkalinity of matter insoluble in alcohol (alkaline salts); sodium silicate; phosphates; phosphates by colorimetric method using molybdenum blue); unsaponified and unsaponifiable matter; free fatty matter; chlorides in alcohol-soluble matter; rosin by McNicoll method; synthetic detergent by difference; and neutral inorganic salts.


SDO ASTM: ASTM International
Document Number D820
Publication Date May 17, 1993
Language en - English
Page Count 10
Revision Level 93(2003)
Supercedes
Committee D12.12
Publish Date Document Id Type View
Jan. 1, 1993 D0820-93 Revision
July 1, 2023 D0820-93R23 Reaffirmation
July 1, 2016 D0820-93R16 Reaffirmation
Oct. 1, 2009 D0820-93R09 Reaffirmation
May 17, 1993 D0820-93R03 Reaffirmation