ASTM D4875-05
Historical Standard: ASTM D4875-05 Standard Test Methods of Polyurethane Raw Materials: Determination of the Polymerized Ethylene Oxide Content of Polyether Polyols
SUPERSEDED (see Active link, below)
ASTM D4875
1. Scope
1.1 Test Method AProton Nuclear Magnetic Resonance Spectroscopy ( 1 H NMR) measures polymerized ethylene oxide (EO) in ethylene oxide-propylene oxide polyethers used in flexible urethane foams and nonfoams. It is suitable for diols made from the commonly used initators and containing EO percentages above five. For triols initiated with glycerin and trimethylol propane, an uncorrected EO value is obtained since both initiators have protons that contribute to the EO measurement.
1.2 Test Method BCarbon-13 Nuclear Magnetic Resonance Spectroscopy ( 13 C NMR) measures the polymerized EO content of ethylene oxide-propylene oxide polyethers used in flexible urethane foams and nonfoams. It is suitable for diols and triols made from the commonly used initiators and containing EO percentages above five.
Note 1There are no equivalent ISO standards.
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.
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
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
EO polymer; EO/PO ratio; ethylene oxide; NMR; polyethers; polyols; polyurethane raw materials; Ethylene oxide (ETO); FTIR analysis; Nuclear magnetic resonance (NMR) spectrometry; Polyether polyols; Polyols; Polyurethane raw materials--polyols; Propylene oxide; Proton nuclear magnetic resonance spectroscopy; Pulse Fourier-transform NMR (FT-NMR); Spectral data; Spectrometry; Carbon-13 nuclear magnetic resonance spectroscopy;
ICS Code
ICS Number Code 83.080.20 (Thermoplastic materials)
DOI: 10.1520/D4875-05
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