ASTM E298-17a
(Test Method)Standard Test Methods for Assay of Organic Peroxides
Standard Test Methods for Assay of Organic Peroxides
SIGNIFICANCE AND USE
3.1 Organic peroxides are widely used as chemical intermediates, catalysts, and initiators. These test methods provide procedures for assaying organic peroxides to determine if they are suitable for their intended use.
SCOPE
1.1 These test methods cover the assay of organic peroxides. Two procedures are given, depending upon the ease of reduction:
1.1.1 Sodium Iodide, Room Temperature Test Method, for organic peroxides easy to reduce, and
1.1.2 Sodium Iodide, 60°C Test Method, for organic peroxides that are moderately stable.
1.2 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first-aid procedures, and safety precautions.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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.
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.
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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: E298 − 17a
Standard Test Methods for
1
Assay of Organic Peroxides
This standard is issued under the fixed designation E298; 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* Methods for Analysis and Testing of Industrial and Spe-
3
cialty Chemicals (Withdrawn 2009)
1.1 Thesetestmethodscovertheassayoforganicperoxides.
E200 Practice for Preparation, Standardization, and Storage
Two procedures are given, depending upon the ease of reduc-
of Standard and Reagent Solutions for ChemicalAnalysis
tion:
1.1.1 Sodium Iodide, Room Temperature Test Method, for
3. Significance and Use
organic peroxides easy to reduce, and
3.1 Organic peroxides are widely used as chemical
1.1.2 Sodium Iodide, 60°C Test Method, for organic perox-
intermediates, catalysts, and initiators. These test methods
ides that are moderately stable.
provide procedures for assaying organic peroxides to deter-
1.2 Review the current Safety Data Sheets (SDS) for de-
mine if they are suitable for their intended use.
tailedinformationconcerningtoxicity,first-aidprocedures,and
safety precautions.
4. Purity of Reagents
1.3 The values stated in SI units are to be regarded as
4.1 Purity of Reagents—Reagent grade chemicals shall be
standard. The values given in parentheses are for information
used in all tests. Unless otherwise indicated, it is intended that
only.
all reagents shall conform to the specifications of the Commit-
1.4 This standard does not purport to address all of the
tee onAnalytical Reagents of theAmerican Chemical Society,
4
safety concerns, if any, associated with its use. It is the
where such specifications are available. Other grades may be
responsibility of the user of this standard to establish appro-
used, provided it is first ascertained that the reagent is of
priate safety, health, and environmental practices and deter-
sufficiently high purity to permit its use without lessening the
mine the applicability of regulatory limitations prior to use.
accuracy of the determination.
1.5 This international standard was developed in accor-
4.2 Unless otherwise indicated, references to water shall be
dance with internationally recognized principles on standard-
understood to meanType II orType III reagent water conform-
ization established in the Decision on Principles for the
ing to Specification D1193.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
SODIUM IODIDE, ROOM TEMPERATURE TEST
Barriers to Trade (TBT) Committee.
METHOD
2. Referenced Documents
5. Scope
2
2.1 ASTM Standards:
5.1 This test method covers the assay of organic peroxides
D1193 Specification for Reagent Water
that are easily reduced, such as hydroperoxides and diacyl
D6809 Guide for Quality Control and Quality Assurance
peroxides. Dialkyl peroxides do not react, while peresters and
Procedures for Aromatic Hydrocarbons and Related Ma-
bridge-type peroxides like ascaridole react slowly and incom-
terials
pletely.
E180 Practice for Determining the Precision of ASTM
5.2 Specific peroxides that can be analyzed by this proce-
dure include the following:
1
These test methods are under the jurisdiction of ASTM Committee D16 on
Aromatic, Industrial, Specialty and Related Chemicals and are the direct responsi-
3
bility of Subcommittee D16.12 on Caustics and Peroxides. The last approved version of this historical standard is referenced on
Current edition approved July 1, 2017. Published July 2017. Originally approved www.astm.org.
4
in 1966. Last previous edition approved in 2017 as E298 – 17. DOI: 10.1520/ Reagent Chemicals, American Chemical Society Specifications, American
E0298-17a. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
*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
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...
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: E298 − 17 E298 − 17a
Standard Test Methods for
1
Assay of Organic Peroxides
This standard is issued under the fixed designation E298; 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 These test methods cover the assay of organic peroxides. Two procedures are given, depending upon the ease of reduction:
1.1.1 Sodium Iodide, Room Temperature Test Method, for organic peroxides easy to reduce, and
1.1.2 Sodium Iodide, 60°C Test Method, for organic peroxides that are moderately stable.
1.2 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first-aid procedures, and safety
precautions.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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.
1.4 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first-aid procedures, and safety
precautions.
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:
D1193 Specification for Reagent Water
D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
3
(Withdrawn 2009)
E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
3. Significance and Use
3.1 Organic peroxides are widely used as chemical intermediates, catalysts, and initiators. These test methods provide
procedures for assaying organic peroxides to determine if they are suitable for their intended use.
4. Purity of Reagents
4.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all
reagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where
4
such specifications are available. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high
purity to permit its use without lessening the accuracy of the determination.
1
These test methods are under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and are the
direct responsibility of Subcommittee D16.15 on Industrial and Specialty General Standards.
Current edition approved Feb. 1, 2017July 1, 2017. Published February 2017July 2017. Originally approved in 1966. Last previous edition approved in 20082017 as
E298 – 08.E298 – 17. DOI: 10.1520/E0298-17.10.1520/E0298-17a.
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Reagent Chemicals, American Chemical Society Specifications, American Chemical Society, Washington, DC. For suggestions on the testing of reagents not listed by
the American Chemical Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia and National
Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville, MD.
*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
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E298 − 17a
4.2 Unless otherwise indicated, references to water shall be understood to mean Type II or Type III reagent water conforming
to Specification D1193.
S
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