ASTM D4273-05
Historical Standard: ASTM D4273-05 Standard Test Methods for Polyurethane Raw Materials Determination of Primary Hydroxyl Content of Polyether Polyols
SUPERSEDED (see Active link, below)
ASTM D4273
1. 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 1There 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D883 Terminology Relating to Plastics
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E386 Practice for Data Presentation Relating to High-Resolution Nuclear Magnetic Resonance (NMR) Spectroscopy
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Keywords
NMR; nuclear magnetic resonance spectroscopy; polyurethane raw materials; primary hydroxyl, polyether polyol; Hydroxyl (hydroxide ion) content; Nuclear magnetic resonance (NMR) spectrometry; Polyether polyols; Polyols; Polyurethane insulation; Polyurethane raw materials--polyols;
ICS Code
ICS Number Code 83.080.20 (Thermoplastic materials)
DOI: 10.1520/D4273-05
ASTM International is a member of CrossRef.
