ASTM D4875-18
(Test Method)Standard Test Methods of Polyurethane Raw Materials: Determination of the Polymerized Ethylene Oxide Content of Polyether Polyols
Standard Test Methods of Polyurethane Raw Materials: Determination of the Polymerized Ethylene Oxide Content of Polyether Polyols
SIGNIFICANCE AND USE
5.1 Measurements of EO content correlate to polyol reactivity (as related to primary hydroxyl content), linearity of foam rise, and hydrophilicity of the polyol and final product.
SCOPE
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.
1.2 Test Method B—Carbon-13 Nuclear Magnetic Resonance Spectroscopy (13C NMR) measures the polymerized EO content of EO-PO polyether polyols used in flexible polyurethane foams and non-foams. It is suitable for diols and triols made from the commonly used initiators and containing EO percentages >5.
1.3 The values stated in SI units are to be regarded as standard.
1.4 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.
1.5 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
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.
Designation: D4875 − 18
Standard Test Methods of
Polyurethane Raw Materials: Determination of the
1
Polymerized Ethylene Oxide Content of Polyether Polyols
This standard is issued under the fixed designation D4875; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 Test Method A—Proton Nuclear Magnetic Resonance
1
Spectroscopy( HNMR)measurespolymerizedethyleneoxide D883Terminology Relating to Plastics
E691Practice for Conducting an Interlaboratory Study to
(EO) content of ethylene oxide (EO) propylene oxide (PO)
polyether polyols used in flexible polyurethane foams and Determine the Precision of a Test Method
E2977PracticeforMeasuringandReportingPerformanceof
non-foams. It is suitable for diols initiated from glycols of EO
or PO containing EO percentages >5. For triols initiated with Fourier-Transform Nuclear Magnetic Resonance (FT-
NMR) Spectrometers for Liquid Samples
glycerol (glycerin) and trimethylolpropane, an uncorrected EO
value is obtained since both initiators have protons that
3. Terminology
contribute to the EO measurement.
3.1 Definitions—For definitions of terms that appear in this
1.2 Test Method B—Carbon-13 Nuclear Magnetic Reso-
13 method refer to Terminology D883 and Practice E2977.
nance Spectroscopy ( C NMR) measures the polymerized EO
content of EO-PO polyether polyols used in flexible polyure- 3.2 Definitions of Terms Specific to This Standard:
thane foams and non-foams. It is suitable for diols and triols 3.2.1 heteric polyol, n—a polyether polyol in which ethyl-
made from the commonly used initiators and containing EO ene oxide and propylene oxide units are randomly arranged.
percentages >5.
3.2.2 initiator, n—a substance with which ethylene oxide or
propylene oxide reacts to form a polyether polyol.
1.3 The values stated in SI units are to be regarded as
3.2.2.1 Discussion—One initiator unit is incorporated into
standard.
each polymer or oligomer molecule.
1.4 This standard does not purport to address all of the
3.2.3 EO capped polyol—a polyol that contains a terminal
safety concerns, if any, associated with its use. It is the
block of ethylene oxide units
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Summary of Test Methods
mine the applicability of regulatory limitations prior to use.
1
4.1 Test Method A—The H NMR spectra of polyether
NOTE 1—There is no known ISO equivalent to this standard.
polyols show two groups of resonance peaks. The first group
1.5 This international standard was developed in accor-
corresponds to the methyl protons of propylene oxide (PO).
dance with internationally recognized principles on standard-
The second group corresponds to the methylene and methine
ization established in the Decision on Principles for the
protons of PO and the methylene protons of EO. The EO peak
Development of International Standards, Guides and Recom-
areaisobtainedbysubtractingtheareaofthePOmethylpeaks
mendations issued by the World Trade Organization Technical
from the area of the methylene and methine peaks. Initiators
Barriers to Trade (TBT) Committee.
other than glycols of EO and PO give systematic errors (see
Note 2).
NOTE 2—The initiator error can be estimated by calculating the
1
These test methods are under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.22 on Cellular
2
Materials - Plastics and Elastomers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2018. Published April 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1988. Last previous edition approved in 2011 as D4875-11. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D4875-18. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4875 − 18
theoretical contribution of initiator protons to the EO and PO peak areas.
9.1.2 Number of Scans—Select the appropriate number to
This calculation is outside the scope of this method.
yield a signal to noise of >100:1 between 2 and 0.5 ppm
13
4.2 Test Method B—The C NMR sp
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4875 − 11 D4875 − 18
Standard Test Methods of
Polyurethane Raw Materials: Determination of the
1
Polymerized Ethylene Oxide Content of Polyether Polyols
This standard is issued under the fixed designation D4875; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1
1.1 Test Method A—Proton Nuclear Magnetic Resonance Spectroscopy ( H NMR) measures polymerized ethylene oxide (EO)
in content of ethylene oxide-propylene oxide polyethers oxide (EO) propylene oxide (PO) polyether polyols used in flexible
urethanepolyurethane foams and nonfoams.non-foams. It is suitable for diols made from the commonly used initiators andinitiated
from glycols of EO or PO containing EO percentages above five. >5. For triols initiated with glycerin and trimethylol propane,
glycerol (glycerin) and trimethylolpropane, an uncorrected EO value is obtained since both initiators have protons that contribute
to the EO measurement.
13
1.2 Test Method B—Carbon-13 Nuclear Magnetic Resonance Spectroscopy ( C NMR) measures the polymerized EO content
of ethylene oxide-propylene oxide polyethers EO-PO polyether polyols used in flexible urethanepolyurethane foams and
nonfoams.non-foams. It is suitable for diols and triols made from the commonly used initiators and containing EO percentages
above five.>5.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
NOTE 1—There is no known ISO equivalent to this standard.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D883 Terminology Relating to Plastics
E386 Practice for Data Presentation Relating to High-Resolution Nuclear Magnetic Resonance (NMR) Spectroscopy
3
(Withdrawn 2015)
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E2977 Practice for Measuring and Reporting Performance of Fourier-Transform Nuclear Magnetic Resonance (FT-NMR)
Spectrometers for Liquid Samples
3. Terminology
3.1 Definitions—DefinitionsFor—Terminology in these test methods follows the standard terminology defined in definitions of
terms that appear in this method refer to Terminology D883 and Practice E386E2977.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 heteric polyol, n—a polyether polyol in which ethylene oxide and propylene oxide units are randomly arranged.
3.2.2 initiator, n—a substance with which ethylene oxide or propylene oxide reacts to form a polyether polyol.
1
These test methods are under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.22 on Cellular Materials - Plastics
and Elastomers.
Current edition approved April 1, 2011April 1, 2018. Published April 2011April 2018. Originally approved in 1988. Last previous edition approved in 20052011 as
D4875 - 05.D4875 - 11. DOI: 10.1520/D4875-11.10.1520/D4875-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4875 − 18
3.2.2.1 Discussion—
One initiator unit is incorporated into each polymer or oligomer molecule.
3.2.3 EO capped polyol—a polyol that contains a terminal block of ethylene oxide units
4. Summary of Test Methods
1
4.1 Test Method A—The H NMR spectra of polyether polyols show two groups of resonance peaks corresponding pe
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D4875 − 18
Standard Test Methods of
Polyurethane Raw Materials: Determination of the
1
Polymerized Ethylene Oxide Content of Polyether Polyols
This standard is issued under the fixed designation D4875; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2
1.1 Test Method A—Proton Nuclear Magnetic Resonance 2.1 ASTM Standards:
1
Spectroscopy ( H NMR) measures polymerized ethylene oxide D883 Terminology Relating to Plastics
(EO) content of ethylene oxide (EO) propylene oxide (PO) E691 Practice for Conducting an Interlaboratory Study to
polyether polyols used in flexible polyurethane foams and Determine the Precision of a Test Method
non-foams. It is suitable for diols initiated from glycols of EO E2977 Practice for Measuring and Reporting Performance of
or PO containing EO percentages >5. For triols initiated with Fourier-Transform Nuclear Magnetic Resonance (FT-
glycerol (glycerin) and trimethylolpropane, an uncorrected EO NMR) Spectrometers for Liquid Samples
value is obtained since both initiators have protons that
3. Terminology
contribute to the EO measurement.
3.1 Definitions—For definitions of terms that appear in this
1.2 Test Method B—Carbon-13 Nuclear Magnetic Reso-
method refer to Terminology D883 and Practice E2977.
13
nance Spectroscopy ( C NMR) measures the polymerized EO
3.2 Definitions of Terms Specific to This Standard:
content of EO-PO polyether polyols used in flexible polyure-
3.2.1 heteric polyol, n—a polyether polyol in which ethyl-
thane foams and non-foams. It is suitable for diols and triols
ene oxide and propylene oxide units are randomly arranged.
made from the commonly used initiators and containing EO
percentages >5.
3.2.2 initiator, n—a substance with which ethylene oxide or
propylene oxide reacts to form a polyether polyol.
1.3 The values stated in SI units are to be regarded as
3.2.2.1 Discussion—One initiator unit is incorporated into
standard.
each polymer or oligomer molecule.
1.4 This standard does not purport to address all of the
3.2.3 EO capped polyol—a polyol that contains a terminal
safety concerns, if any, associated with its use. It is the
block of ethylene oxide units
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Summary of Test Methods
mine the applicability of regulatory limitations prior to use.
1
4.1 Test Method A—The H NMR spectra of polyether
NOTE 1—There is no known ISO equivalent to this standard.
polyols show two groups of resonance peaks. The first group
1.5 This international standard was developed in accor-
corresponds to the methyl protons of propylene oxide (PO).
dance with internationally recognized principles on standard-
The second group corresponds to the methylene and methine
ization established in the Decision on Principles for the
protons of PO and the methylene protons of EO. The EO peak
Development of International Standards, Guides and Recom-
area is obtained by subtracting the area of the PO methyl peaks
mendations issued by the World Trade Organization Technical
from the area of the methylene and methine peaks. Initiators
Barriers to Trade (TBT) Committee.
other than glycols of EO and PO give systematic errors (see
Note 2).
NOTE 2—The initiator error can be estimated by calculating the
1
These test methods are under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.22 on Cellular
2
Materials - Plastics and Elastomers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2018. Published April 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1988. Last previous edition approved in 2011 as D4875 - 11. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D4875-18. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4875 − 18
theoretical contribution of initiator protons to the EO and PO peak areas.
9.1.2 Number of Scans—Select the appropriate number to
This calculation is outside the scope of this method.
yield a signal to noise of >100:1 between 2 and 0.5 ppm
13
4.2 Test Method B—The C NMR spectra of polyether (usually 16 to 64).
polyols contain multiple resonances arising from initiator, EO, 9.1.3 Sweep Wid
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.