ASTM D4659-98
Historical Standard: ASTM D4659-98 Standard Test Methods for Polyurethane Raw Materials Determination of Specific Gravity of Isocyanates
SUPERSEDED (see Active link, below)
ASTM D4659
1. Scope
1.1 These test methods determine the specific gravity of toluene-2,4-diisocyanate and toluene-2,6-diisocyanate or mixtures of the two. These test methods also are applicable to many other liquids. (See Note 1.)
1.1.1 Test Method A -Specific gravity by pycnometer, for high-accuracy determination.
1.1.2 Test Method B -Specific gravity by hydrometer, for a less accurate, but rapid, determination.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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. For specific warning and precautionary statements see Notes 2 and 3.
Note 1-There is no equivalent ISO 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
D891 Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals
D1193 Specification for Reagent Water
E1 Specification for ASTM Liquid-in-Glass Thermometers
E100 Specification for ASTM Hydrometers
E202 Test Methods for Analysis of Ethylene Glycols and Propylene Glycols
Keywords
density; hydrometer; isocyanates; polyurethane raw materials; pycnometer; specific gravity; Hydrometer analysis; Isocyanates; Polyurethane raw materials--isocyanates; Purity analysis--plastics; Pycnometer/pycnometry; Specific gravity--plastics; Toluene diisocyanate (TDI)
ICS Code
ICS Number Code 83.040.30 (Auxiliary materials and additives for plast); 83.080.20 (Thermoplastic materials)
DOI: 10.1520/D4659-98
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