• ASTM D4889-21

ASTM D4889-21

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

ASTM International, 01/15/2021

Publisher: ASTM

File Format: PDF

$26.00$52.00


Published:15/01/2021

Pages:5

File Size:1 file , 83 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

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 di(phenylisocyanate), and polymeric (methylene phenylisocyanate) (see Note 1).

Note 1:''Test method A includes a procedure for measuring dynamic viscosity using a rotational instrument. Test method B is a general procedure for kinematic viscosity of isocyanate.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazards statement, see Warning at the end of 5.1.

Note 2:''Test Method A is equivalent to ISO 3219, Test Method B is equivalent to ISO 3104.

1.4''This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

More ASTM standard pdf

ASTM B505/B505M-23

ASTM B505/B505M-23

Standard Specification for Copper Alloy Continuous Castings

$31.00 $63.00

ASTM C1621/C1621M-17(2023)

ASTM C1621/C1621M-17(2023)

Standard Test Method for Passing Ability of Self-Consolidating Concrete by J-Ring

$27.00 $55.00

ASTM D6555-23

ASTM D6555-23

Standard Guide for Evaluating System Effects in Repetitive-Member Wood Assemblies

$31.00 $63.00

ASTM D2863-23

ASTM D2863-23

Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)

$34.00 $69.00