Norm

ASTM D4889 - 04(2011) en

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

  • Deze norm is ingetrokken sinds 01-05-2015

45,11 54,58 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 3
Gepubliceerd op 01-02-2011
Taal Engels

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.

Details

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