1226010

ASTM D4273-05

Standard Test Methods for Polyurethane Raw Materials Determination of Primary Hydroxyl Content of Polyether Polyols

standard by ASTM International , 07/01/2005

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Full Description

1.1 Carbon-13 Nuclear Magnetic Resonance Spectroscopy(carbon-13 NMR), measures the primary hydroxyl content of ethylene oxide-propylene oxide polyethers used in preparing flexible foams. It is best suited for polyethers with primary hydroxyl contents of 10 to 90 %.

Note 1 - There is no equivalent ISO standard.

1.2 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.

 

Product Details

Published:
07/01/2005
Number of Pages:
8
File Size:
1 file , 110 KB
Redline File Size:
2 files , 230 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. ASTM D4273-23


    Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols

    • Most Recent

  2. ASTM D4273-18


    Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols

    • Historical Version

  3. ASTM D4273-11


    Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols

    • Historical Version

  4. ASTM D4273-05

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    Standard Test Methods for Polyurethane Raw Materials Determination of Primary Hydroxyl Content of Polyether Polyols

    • Historical Version

  5. ASTM D4273-99


    Standard Test Methods for Polyurethane Raw Materials Determination of Primary Hydroxyl Content of Polyether Polyols

    • Historical Version