ASTM D4662-08
Historical Standard: ASTM D4662-08 Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols
SUPERSEDED (see Active link, below)
ASTM D4662
1. Scope
1.1 These test methods measure the acidic and basic constituents in polyols and other materials of high acidity or alkalinity that are soluble in mixtures of toluene and ethyl alcohol. These test methods do not apply to polyethers. (See Note 1.)
1.2 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.
Note 1There is no known ISO equivalent to this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D883 Terminology Relating to Plastics
D1193 Specification for Reagent Water
Keywords
acidity; acid number; alkalinity number; polyols; acidity; acid number; alkalinity number; polyols; Polyurethane raw materials--polyols; Reactivity; Titration; Acidity, alkalinity, pH--plastics; Acid number; Alkalinity; Batch-to-batch uniformity; Correction factors; Hydroxyl numbers; Polyols ;
ICS Code
ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics); 83.080.20 (Thermoplastic materials)
DOI: 10.1520/D4662-08
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