ASTM D4671-21
Standard Test Method for Polyurethane Raw Materials: Determination of Unsaturation of Polyols
- Standard No.
- ASTM D4671-21
- Release Date
- 2021
- Published By
- American Society for Testing and Materials (ASTM)
- Latest
- ASTM D4671-21
- Scope
- 1.1?This test method measures unsaturation in polyether polyols. (See Note 1.) It uses 2 mL of ca. 0.05 M mercuric acetate reagent in methanol and about 1 g of sample or less. This test method uses a potentiometric determination of an end point. 1.2?The values stated in SI unit
ASTM D4671-21 Referenced Document
- ASTM D883 Standard Terminology Relating to Plastics
- ASTM E180 Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
- ASTM E2935 Standard Practice for Evaluating Equivalence of Two Testing Processes
- ASTM E456 Standard Terminology for Relating to Quality and Statistics
- ISO 17710 Plastics — Polyols for use in the production of polyurethanes — Determination of degree of unsaturation by microtitration
ASTM D4671-21 history
- 2021 ASTM D4671-21 Standard Test Method for Polyurethane Raw Materials: Determination of Unsaturation of Polyols
- 2016 ASTM D4671-16 Standard Test Method for Polyurethane Raw Materials: Determination of Unsaturation of Polyols
- 2010 ASTM D4671-05(2010)e1 Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols
- 2005 ASTM D4671-05 Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols
- 1999 ASTM D4671-99 Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols
