ASTM D 4878 Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
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ASTM D 4878 Document Information:
Title
Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
ASTM International
Publication Date:
Nov 1, 2003
Scope:
Footnote *
These test methods (A and B) determine the viscosities 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.)
The values stated in SI units are to be regarded as the standard.
Other equivalent units are
provided because of current common usage.
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 1 - There is no equivalent ISO standard for Test Method A
although ISO 3219 is similar. Test
Method B is equivalent to ISO 3104.
Footnote * - A Summary of Changes section appears at the end of this Standard.
Keywords:
- Brookfield
- Cannon-Fenske
- polyols
- polyurethane raw materials
- viscosity
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