ASTM D4659-98
Standard Test Methods for Polyurethane Raw Materials Determination of Specific Gravity of Isocyanates

Standard No.

ASTM D4659-98

Release Date

1998

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4659-03

Latest

ASTM D4659-19

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.

ASTM D4659-98 history

• 2019 ASTM D4659-19 Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
• 2014 ASTM D4659-14 Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
• 2009 ASTM D4659-09 Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
• 2003 ASTM D4659-03 Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
• 1998 ASTM D4659-98 Standard Test Methods for Polyurethane Raw Materials Determination of Specific Gravity of Isocyanates