UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

ASTM D4273

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

active, Most Current
Buy Now
Organization: ASTM
Publication Date: 1 April 2018
Status: active
Page Count: 7
ICS Code (Thermoplastic materials): 83.080.20
scope:

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 polyurethane foams. This method is best suited for polyether polyols with primary hydroxyl contents of 10 to 90 %.

The values stated in SI units are to be regarded as standard.

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-There is no known ISO equivalent to this standard.

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.

*A Summary of Changes section appears at the end of this standard

 

Document History

ASTM D4273
April 1, 2018
Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
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 polyurethane...
April 1, 2011
Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
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...
July 1, 2005
Standard Test Method for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
(Footnote *) 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....
November 10, 1999
Standard Test Methods for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
1. Scope 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...
October 15, 1994
Standard Test Methods for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
A description is not available for this item.
July 29, 1983
Standard Methods for Testing POLYURETHANE RAW MATERIALS: DETERMINATION OF PRIMARY HYDROXYL CONTENTS OF POLYETHER POLYOLS
Method A-Fluorine-19 Nuclear Magnetic Resonance Spectroscopy(fluorine-19 NMR) measures primary hydroxyl contents in ethylene oxide-propylene oxide polyethers used in flexible urethane foams. It is...
July 29, 1983
Standard Test Methods for Polyurethane Raw Materials: Determination of Primary Hydroxyl Content of Polyether Polyols
A description is not available for this item.

References

Advertisement