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ASTM D4878-23
Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols
Translate name
STANDARD published on 1.5.2023
The information about the standard:
Designation standards: ASTM D4878-23
Publication date standards: 1.5.2023
SKU: NS-1143481
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Auxiliary materials and additives for plasticsThermoplastic materials
Annotation of standard text ASTM D4878-23 :
Keywords:
dynamic viscosity, kinematic viscosity, polyols, polyurethane raw materials, rotational viscosity,, ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics),83.080.20 (Thermoplastic materials)
Additional information
| Significance and Use | ||||||||||||
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4.1?These test methods are suitable for research or as quality control or specification tests. 4.2?Viscosity measures the resistance of a fluid to uniformly continuous flow without turbulence or other forces. |
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| 1. Scope | ||||||||||||
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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. Test Method A is a rotational procedure for determining dynamic viscosity. Test Method B is a general procedure for kinematic viscosity of transparent polyols. (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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1:?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. |
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| 2. Referenced Documents | ||||||||||||
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