ASTM-D4659 › Historical Revision Information
Standard Test Methods for Polyurethane Raw Materials: Determination of Specific Gravity of Isocyanates
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 These 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.)
1.1.1 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 standard. No other units of measurement are included in this standard.
1.3 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. For specific warning and precautionary statements see Section 7. Note 1—There is no equivalent ISO standard.
Significance and Use
These test methods can be used for research or for quality control to characterize isocyanates used in polyurethane products.
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 Number Code 83.040.30 (Auxiliary materials and additives for plastics); 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)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-D4659-09
Revision Level
2009 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Feb. 1, 2009
Document Type
Test Method
Page Count
4 pages
Committee Number
D20.22