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ASTM International - ASTM D4273-05

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

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Organization: ASTM International
Publication Date: 1 July 2005
Status: inactive
Page Count: 8
ICS Code (Thermoplastic materials): 83.080.20
significance And Use:

Measurements of primary hydroxyl content are useful for providing information regarding the relative reactivities of polyols.

scope:

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.

Document History

April 1, 2018
Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
1.1 Carbon-13 Nuclear Magnetic Resonance Spectroscopy (13C NMR) measures the primary hydroxyl content of ethylene oxide (EO)-propylene oxide (PO) polyether polyols used in preparing flexible...
April 1, 2011
Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
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...
ASTM D4273-05
July 1, 2005
Standard Test Methods for Polyurethane Raw Materials Determination of Primary Hydroxyl Content of Polyether Polyols
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...
November 10, 1999
Standard Test Methods for Polyurethane Raw Materials Determination of Primary Hydroxyl Content of Polyether Polyols
1.1 Test Method A-Fluorine-19 Nuclear Magnetic Resonance Spectroscopy (fluorine-19 NMR), measures the primary hydroxyl content in ethylene oxide-propylene oxide polyethers used in flexible urethane...
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