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ASTM International - ASTM D4671-05(2010)e1

Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols

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Organization: ASTM International
Publication Date: 1 July 2010
Status: inactive
Page Count: 4
ICS Code (Auxiliary materials and additives for plastics): 83.040.30
significance And Use:

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

Side reactions that form unsaturated compounds in polypropylene oxides produce small amounts... View More

scope:

1.1 These test methods measure unsaturation in polyether polyols. (See Note 1.)

1.1.1 Test Method A, High-Volume Reagent Method-Uses about 50 mL of 0.1 M mercuric acetate reagent in methanol and 15 g or more of sample. These test methods use an indicator for colorimetric determination of an end point. It is recommended for polyols with low values (below 0.01 millequivalents per gram (meq/g)) of unsaturation where large sample sizes are required.

1.1.2 Test Method B, Low-Volume Reagent Method-Uses 2 mL of ca. 0.05 M mercuric acetate reagent in methanol and about 1 g of sample or less. These test methods use a potentiometric determination of an end point.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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 1-There is no known ISO equivalent to this standard.

Document History

July 1, 2021
Standard Test Method for Polyurethane Raw Materials: Determination of Unsaturation of Polyols
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...
April 1, 2016
Standard Test Method for Polyurethane Raw Materials: Determination of Unsaturation of Polyols
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...
ASTM D4671-05(2010)e1
July 1, 2010
Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols
1.1 These test methods measure unsaturation in polyether polyols. (See Note 1.) 1.1.1 Test Method A, High-Volume Reagent Method—Uses about 50 mL of 0.1 M mercuric acetate reagent in methanol and 15...
March 1, 2005
Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols
1.1 These test methods measure unsaturation in polyether polyols. (See Note 0.) 1.1.1 Test Method A, High-Volume Reagent MethodUses about 50 mL of 0.1 M mercuric acetate reagent in methanol and 15 g...
November 10, 1999
Standard Test Method for Polyurethane Raw Materials Determination of Unsaturation of Polyols
1.1 This test method measures unsaturation in polyether polyols. (See Note.) 1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the...
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