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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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:
|Moisture and Other Matter Volatile at 105°C (Oven Method)||5 and 6|
|Free Alkali or Free Acid||7 and 8|
|Anhydrous, Salt-Free, Soda Soap||9-12|
|Alcohol-Soluble Matter||13 and 14|
|Matter Insoluble in Water||15|
|Total Alkalinity of Matter Insoluble in Alcohol (Alkaline Salts)||16 and 17|
|Phosphate (Colorimetric Method Using Molybdenum Blue)||29-34|
|Unsaponified and Unsaponifiable Matter||35-39|
|Free Fatty Matter||40|
|Chlorides in Alcohol-Soluble Matter||41-43|
|Rosin (McNicoll Method)||44-47|
|Synthetic Detergent (by Difference)||48|
|Neutral, Inorganic Salts||49|
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D216 Method of Test for Distillation of Natural Gasoline
D459 Terminology Relating to Soaps and Other Detergents
D875 Method for Calculating of Olefins and Aromatics in Petroleum Distillates from Bromine Number and Acid Absorption
D1193 Specification for Reagent Water
D1768 Test Method for Sodium Alkylbenzene Sulfonate in Synthetic Detergents by Ultraviolet Absorption
D2357 for Qualitative Classification of Surfactants by Infrared Absorption
D2358 Test Method for Separation of Active Ingredient from Surfactant and Syndet Compositions
D3049 Test Method for Synthetic Anionic Ingredient by Cationic Titration
ICS Number Code 71.100.40 (Surface active agents)
UNSPSC Code 12161902(Detergent surfactants)
ASTM D820-93(2009), Standard Test Methods for Chemical Analysis of Soaps Containing Synthetic Detergents, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top