ASTM D4889-98 - 10.7.1998
 
1. Scope

1.1 These test methods determine the viscosity of crude or modified iso cyanates. It is applicable to products derived from toluene di iso cyanate, methylene-bis-(4-phenyl iso cyanate), and polymethylene polyphenyl iso cyanates. (See Note

1.)

1.2 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 hazards statements see Note 2 and 10.5.

Note 1-There is no equivalent ISO standard.
 
2. Referenced Documents

ISO 3219

Plastics--Polymers/Resins in the Liquid State or as Emulsions or Dispersions--Determination of Viscosity Using a Rotational Viscometer with Defined Shear Rate

D445-26

Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

D883-26b

Standard Terminology Relating to Plastics (Includes all amendments and changes 8/24/2026).

E2251-14(2021)

Standard Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids

ISO 3104

Petroleum Products--Transparent and Opaque Liquids--Determination of Kinematic Viscosity and Calculation of Dynamic Viscosity