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ASTM D4875-18

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ASTM D4875-18

Standard Test Methods of Polyurethane Raw Materials: Determination of the Polymerized Ethylene Oxide Content of Polyether Polyols

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1.1 Test Method A—Proton Nuclear Magnetic Resonance Spectroscopy (1H NMR) measures polymerized ethylene oxide (EO) content of ethylene oxide (EO) propylene oxide (PO) polyether polyols used in flexible polyurethane foams and non-foams. It is suitable for diols initiated from glycols of EO or PO containing EO percentages >5. For triols initiated with glycerol (glycerin) and trimethylolpropane, an uncorrected EO value is obtained since both initiators have protons that contribute to the EO measurement.

Author ASTM
Editor ASTM
Document type Standard
Format File
ICS 83.080.20 : Thermoplastic materials
Number of pages 7
Replace ASTM D4875-11
Set ASTMVOL0802
Year 2018
Document history ASTM D4875-11
Country USA
Keyword ASTM 4875;ASTM D4875;ASTM D4875;10.1520/D4875-18