ASTM D4878-08
Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols

Standard No.

ASTM D4878-08

Release Date

2008

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4878-15

Latest

ASTM D4878-23

Scope

These test methods are suitable for research or as quality control or specification tests.

Viscosity measures the resistance of a fluid to uniformly continuous flow without turbulence or other forces.

1.1 These test methods (A and B) determine the viscosity of polyols in the range from 10 to 100 000 mPa·s(cP) at 25°C or at 50°C. Test Method A also applies to more viscous samples that are soluble in n-butyl acetate. Test Method B is simply a reference to a general procedure for kinematic viscosity, D 445. (See Note 1.)

1.2 The values stated in SI units are to be regarded as the standard. Other equivalent units are provided because of current common usage.

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.

Note 18212;There is no equivalent ISO standard for Test Method A although ISO 3219 is similar. Test Method B is equivalent to ISO 3104.

ASTM D4878-08 history

• 2023 ASTM D4878-23 Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
• 2015 ASTM D4878-15 Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
• 2008 ASTM D4878-08 Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
• 2003 ASTM D4878-03 Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
• 1998 ASTM D4878-98 Standard Test Methods for Polyurethane Raw Materials Determination of Viscosity of Polyols