ASTM-D4889 2011

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D4889-04(2011) Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Crude or Modified Isocyanates

Published By	Publication Date	Number of Pages
ASTM	2011	3

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Categories: 83.040.30 - Auxiliary materials and additives for plastics, ASTM

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Description

ASTM D4889-04-Reapproved2011

Historical Standard: Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Crude or Modified Isocyanates

ASTM D4889

Scope

1.1 These test methods (A and B) determine the viscosity of crude or modified isocyanates. They are applicable to products derived from toluene diisocyanate, methylene-bis-(4-phenylisocyanate), and polymethylene polyphenylisocyanates (see Note 1).

Note 1—Test method A includes a procedure for measuring dynamic viscosity using a rotational Brookfield instrument. Test method B is simply a reference to a general procedure for measuring kinematic viscosity using a Cannon-Fenske instrument, D445.

1.2 The values stated in SI units are to be regarded as 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 hazards statements see Warnings at the end of 5.1 and 10.5.

Note 2—There is no known ISO equivalent to this standard.

Keywords

Brookfield; Cannon-Fenske; isocyanates; polyurethane raw materials; viscosity; Viscosity–plastics; Cannon-Fonske viscosity; Isocyanates; Methylene-bis-(4-phenylisocyanate); Polymethylene polyphenylisocyanate; Polyurethane raw materials–isocyanates; Toluene diisocyanate (TDI)

ICS Code

ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics)

DOI: 10.1520/D4889-04R11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Significance and Use Sampling Test Conditions Summary of Test Method Interferences
2	Apparatus Procedure Calculation Precision and Bias General: Keywords TABLE 1
3	TABLE 2

Additional information

Standard Title	D4889-04(2011) Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Crude or Modified Isocyanates
Published Code	ASTM
Publication Date	2011
Pages Count	3
ICS Codes	83.040.30 - Auxiliary materials and additives for plastics