ASTM D4415-05
(Test Method)Standard Test Methods for Determination of Dimer in Acrylic Acid (Withdrawn 2011)
Standard Test Methods for Determination of Dimer in Acrylic Acid (Withdrawn 2011)
SIGNIFICANCE AND USE
These test methods provide a measurement of the dimer content of acrylic acid. The results of this measurement can be used for specification purposes but must be on an as-shipped basis since the dimer content will vary with the age and the storage temperature of the acrylic acid.
SCOPE
1.1 Test Method A—Describes a chemical (titrametric) procedure for the determination of acrylic acid dimer in acrylic acid. This procedure may be applicable to other unsaturated organic acids.
1.2 Test Method B—Describes a gas chromatographic procedure for the determination of acrylic acid dimer in acrylic acid. Other impurities may also be determined simultaneously.
1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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. For specific hazard statements, see Section 8.
WITHDRAWN RATIONALE
Test Method ADescribes a chemical (titrametric) procedure for the determination of acrylic acid dimer in acrylic acid. This procedure may be applicable to other unsaturated organic acids. Test Method BDescribes a gas chromatographic procedure for the determination of acrylic acid dimer in acrylic acid. Other impurities may also be determined simultaneously.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications, this test method was withdrawn in June 2011 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
General Information
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Standards Content (Sample)
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:D4415–05
Standard Test Methods for
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Determination of Dimer in Acrylic Acid
This standard is issued under the fixed designation D4415; 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* E200 Practice for Preparation, Standardization, and Storage
of Standard and Reagent Solutions for Chemical Analysis
1.1 Test Method A—Describes a chemical (titrametric) pro-
cedure for the determination of acrylic acid dimer in acrylic
3. Summary of Test Methods
acid. This procedure may be applicable to other unsaturated
3.1 Test Method A—The acid specimen is neutralized and
organic acids.
the dimer (Acrylic acid dimer, CH =CH-COO-CH-CH -
2 2 2
1.2 Test Method B—Describes a gas chromatographic pro-
COOH) determined by saponification and titration. Purity of
cedure for the determination of acrylic acid dimer in acrylic
the acid can also be determined by carrying out the first
acid. Other impurities may also be determined simultaneously.
neutralization, quantitatively, but this is not covered in this
1.3 The following applies to all specified limits in this
method.
standard; for purposes of determining conformance with this
3.2 Test Method B—An internal standard, n-dodecane, is
standard, an observed value or a calculated value shall be
added to the sample and then introduced into a gas chromato-
rounded off “to the nearest unit” in the last right-hand digit
graph containing an appropriate capillary column for separa-
used in expressing the specification limit, in accordance with
tion. The separated components are measured in the column
the rounding-off method of Practice E29.
effluent by a detector and recorded as a chromatogram. The
1.4 The values stated in SI units are to be regarded as
peak areas are measured and the concentration of the compo-
standard. No other units of measurement are included in this
nents of interest are calculated by reference to the internal
standard.
standard.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 These test methods provide a measurement of the dimer
priate safety and health practices and determine the applica-
content of acrylic acid. The results of this measurement can be
bility of regulatory limitations prior to use. For specific hazard
used for specification purposes but must be on an as-shipped
statements, see Section 8.
basis since the dimer content will vary with the age and the
storage temperature of the acrylic acid.
2. Referenced Documents
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2.1 ASTM Standards:
5. Interferences
D268 Guide for Sampling andTestingVolatile Solvents and
5.1 Test Method A—If present, ester impurities present in
Chemical Intermediates for Use in Paint and Related
the acrylic acid will be determined as dimer.
Coatings and Material
5.2 Test Method B—Impurities having the same or similar
D1193 Specification for Reagent Water
retention times as the acrylic acid on the column used may
D4052 Test Method for Density, Relative Density, and API
cause abnormally high results.
Gravity of Liquids by Digital Density Meter
E29 Practice for Using Significant Digits in Test Data to
6. Apparatus
Determine Conformance with Specifications
6.1 Test Method A:
6.1.1 Pressure Bottle, 200 to 350-mL capacity, with lever-
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This test method is under the jurisdiction of ASTM Committee D01 on Paint type closure and made of heat-resistant glass.
and Related Coatings, Materials, andApplications and is the direct responsibility of
6.1.2 Container for Pressure Bottle—A suitable safety de-
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.
vice to contain the pressure bottle. A metal container with a
Current edition approved May 15, 2005. Published July 2005. Originally
´1
hinged top and perforated bottom, a strong synthetic fabric or
approved in 1984. Last previous edition approved in 2000 as D4415 – 91 (2000) .
DOI: 10.1520/D4415-05.
canvas bag, or a safety shield may be used.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1.3 Open-Top Vial,3to5-mLcapacity,ofsuchdiameterto
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
fit the pressure bottle.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.1.4 Buret, 100-mL capacity.
*A Summary of Changes section appears at the end of this standard.
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