ASTM D 4659 : 2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
Hardcopy , PDF
09-09-2020
English
01-03-2014
1.1These test methods determine the specific gravity of toluenediisocyanate and crude methylene-bis-(4-phenylisocyanate). These test methods also are applicable to many other liquids. (See Note 1.)
1.1.1Test Method A—Specific gravity by pycnometer, for high-accuracy determination.
1.1.2Test Method B—Specific gravity by hydrometer, for a less accurate, but rapid, determination.
1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3This 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. For specific warning and precautionary statements see Section 7.
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