ASTM-D4659 › Historical Revision Information
Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
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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.Keywords
Hydrometer analysis; Purity-plast; Pycnometer; Toluene diisocyanate; specific gravity of isocyanates, test,; Isocyanates; Urethanes-polyurethane raw materials (isocyanates); specific gravity, test,; Specific gravity-plast; isocyanates, test; ICS Number Code 83.040.30 (Auxiliary materials and additives for plast); 83.080.20 (Thermoplastic materials)
To find similar documents by ASTM Volume:
08.02 (Plastics (II): D3222 - D5083)
To find similar documents by classification:
83.080.20 (Thermoplastic materials)
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Document Number
ASTM-D4659-87
Revision Level
1987 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Feb. 27, 1987
Document Type
Test Method
Page Count
3 pages
Committee Number
D20.22