ASTM D2119-09
(Test Method)Standard Test Method for Aldehydes in Styrene Monomer (Withdrawn 2018)
Standard Test Method for Aldehydes in Styrene Monomer (Withdrawn 2018)
SIGNIFICANCE AND USE
This test method is suitable for determining the quantity of aldehydes, both for quality control and quality assurance of the product.
SCOPE
1.1 This test method covers the wet chemical determination of aldehydes in styrene monomer. Aldehydes are calculated and reported as benzaldehyde. The range of concentration for this test method is 0.001 % to 0.030 %.
1.2 In determining conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E 29.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.
WITHDRAWN RATIONALE
This test method covers the wet chemical determination of aldehydes in styrene monomer. Aldehydes are calculated and reported as benzaldehyde. The range of concentration for this test method is 0.001 % to 0.030 %.
Formerly under the jurisdiction of Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals, this test method was withdrawn in January 2018 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the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.
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Designation: D2119 − 09
Standard Test Method for
1
Aldehydes in Styrene Monomer
This standard is issued under the fixed designation D2119; 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* 2.2 Other Documents:
OSHA Regulations, 29 CFR paragraphs 1910.1000
1.1 This test method covers the wet chemical determination
3
and1910.1200
of aldehydes in styrene monomer. Aldehydes are calculated
and reported as benzaldehyde. The range of concentration for
3. Summary of Test Method
this test method is 0.001 % to 0.030 %.
3.1 An alcoholic solution of hydroxylamine hydrochloride
1.2 In determining conformance of the test results using this
is added to a specimen of styrene monomer. Active aldehydes
methodtoapplicablespecifications,resultsshallberoundedoff
present react in accordance with the following equation:
in accordance with the rounding-off method of Practice E29.
RCHO1NH OH·HCl→RCHNOH1H O1HCl
2 2
1.3 The values stated in SI units are to be regarded as
The hydrochloric acid, which is equivalent to the aldehyde
standard. No other units of measurement are included in this
present in the sample, is titrated with standard sodium hydrox-
standard.
ide solution.
1.4 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 This test method is suitable for determining the quantity
priate safety and health practices and determine the applica-
of aldehydes, both for quality control and quality assurance of
bility of regulatory limitations prior to use. For specific hazard
the product.
statements, see Section 8.
5. Interferences
2. Referenced Documents
5.1 Ketones, if present, interfere by partially reacting with
2
2.1 ASTM Standards:
the reagent.
D1193 Specification for Reagent Water
D3437 Practice for Sampling and Handling Liquid Cyclic 6. Apparatus
Products
6.1 Erlenmeyer Flasks, glass-stoppered, 250-mL.
D6809 Guide for Quality Control and Quality Assurance
6.2 Pipets, 25-mL.
Procedures for Aromatic Hydrocarbons and Related Ma-
terials 6.3 Volumetric Flasks, 100-mL.
E29 Practice for Using Significant Digits in Test Data to
6.4 Burets, 10-mL. (Microburets are preferred.)
Determine Conformance with Specifications
6.5 Thermometers, capable of differentiating 1°C at ambi-
ent.
1
This test method is under the jurisdiction of ASTM Committee D16 on
7. Reagents and Materials
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.07 on Styrene, Ethylbenzene and C9 and C10 Aromatic
7.1 Purity of Reagents—Reagent grade chemicals shall be
Hydrocarbons.
used in all tests. Unless otherwise indicated, it is intended that
CurrenteditionapprovedJune1,2009.PublishedJuly2009.Originallyapproved
in 1962. Last previous edition approved in 2003 as D2119 – 03. DOI: 10.1520/
all reagents conform to the specifications of the Committee on
D2119-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
the ASTM website. www.dodssp.daps.mil.
*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 ----------------------
D2119 − 09
Analytical Reagents of the American Chemical Society where the flask occasionally. Titrate to the original red-yellow end
4
such specifications are available. Other grades may be used, point with 0.05 N NaOH solution, dispensed from a 10-mL
provided it is first ascertained that the reagent is of sufficiently buret, and record the volume used. Let stand 1 h and again
high purity to permit its use without lessening the accuracy of titrate any acid that may have been liberated. Record the total
the determination. volume of NaOH used.
7.2 Purity of Water—Unless otherwise indicated, references 10.2 Since methanol may contain aldehydes, run a blank
to water shall be understood to mean reagent water as defined determination on 25 mL of methanol.
by Type III of Specification D1193.
11. Calculation
7.3 Hydrochloric Acid, Standard (0.05 N)—Preparea0.05 N
11.1 Calculate the percentage of aldehydes as benzaldehyde
solution of hydrochloric acid (HCl) by diluting 4.15 mL of
as follo
...
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:D2119–03 Designation: D 2119 – 09
Standard Test Method for
1
Aldehydes in Styrene Monomer
This standard is issued under the fixed designation D 2119; 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*
1.1This laboratory test method covers the wet chemical determination of aldehydes in styrene monomer. Aldehydes are
calculated and reported as benzaldehyde. The range of concentration for this test method is 0.001% to 0.030%.
1.2For purposes of determining conformance with this test method, 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 E29
1.1 This test method covers the wet chemical determination of aldehydes in styrene monomer. Aldehydes are calculated and
reported as benzaldehyde. The range of concentration for this test method is 0.001 % to 0.030 %.
1.2 In determining conformance of the test results using this method to applicable specifications, results shall be rounded off
in accordance with the rounding-off method of Practice E 29.
1.3
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 and health practices and determine the applicability of regulatory
limitations prior to use. For specific hazard statements, see Section 8.
2. Referenced Documents
2
2.1 ASTM Standards:
D 1193 Specification for Reagent Water
D 3437 Practice for Sampling and Handling Liquid Cyclic Products
D 6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.2 Other Documents:
OSHA Regulations, 29CFR, paragraphs 1910.1000 and 1910.1200 OSHA Regulations, 29 CFR paragraphs 1910.1000
3
and1910.1200
3. Summary of Test Method
3.1 Analcoholicsolutionofhydroxylaminehydrochlorideisaddedtoaspecimenofstyrenemonomer.Activealdehydespresent
react in accordance with the following equation:
RCHO 1 NH OH·HCl→ RCHNOH 1 H O 1 HCl
2 2
The hydrochloric acid, which is equivalent to the aldehyde present in the sample, is titrated with standard sodium hydroxide
solution.
4. Significance and Use
4.1 This test method is suitable for determining the quantity of aldehydes, both for quality control and quality assurance of the
product.
1
This test method is under the jurisdiction ofASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.07 on Styrene, Ethylbenzene, and C and C Aromatic Hydrocarbons.
9 10
Current edition approved Aug. 10, 2003. Published August 2003. Originally approved in 1962. Last previous edition approved in 1996 as D2119–96.
Current edition approved June 1, 2009. Published July 2009. Originally approved in 1962. Last previous edition approved in 2003 as D 2119 – 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
, Vol 11.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 06.04.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
*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 ----------------------
D2119–09
5. Interferences
5.1 Ketones, if present, interfere by partially reacting with the reagent.
6. Apparatus
6.1 Erlenmeyer Flasks, glass-stoppered, 250-mL.
6.2 Pipets, 25-mL.
6.3 Volumetric Flasks, 100-mL.
6.4 Burets, 10-mL. (Microburets are preferred.)
6.5 Thermometers, capable of differentiating 1°C at ambient.
7. Reagents Reagents and Materials
7.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is i
...
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