ASTM D5713-23
(Test Method)Standard Test Method for Analysis of High Purity Benzene for Cyclohexane Feedstock by Capillary Gas Chromatography
Standard Test Method for Analysis of High Purity Benzene for Cyclohexane Feedstock by Capillary Gas Chromatography
SIGNIFICANCE AND USE
5.1 This test method is useful for benzene purity on the basis of impurities normally present in benzene and may be used for final product inspections and process control.
5.2 This test method will detect the following impurities: toluene, methylcyclopentane, n-hexane, 2-methylhexane, cyclohexane, cyclopentane, 2-methylpentane, 2,3-dimethylpentane, 3-methylhexane, n-heptane, methylcyclohexane, ethylcyclopentane, 2,4-dimethylhexane, trimethylpentane, and others where specific impurity standards are available. Absolute purity cannot be accurately determined if unknown impurities are present.
SCOPE
1.1 This test method covers the determination of specific impurities in, and the purity of benzene for cyclohexane feedstock by gas chromatography.
1.2 This test method has been found applicable to benzene in the range from 99 % to 100 % purity and to impurities at concentrations of 2 mg/kg to 10 000 mg/kg. The limit of detection (LOD) is 2 mg/kg for an impurity and the limit of quantitation (LOQ) is 6 mg/kg for an impurity.
1.3 In determining the 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 E29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 7.2 and Section 8.
1.6 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
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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: D5713 − 23
Standard Test Method for
Analysis of High Purity Benzene for Cyclohexane Feedstock
1
by Capillary Gas Chromatography
This standard is issued under the fixed designation D5713; 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* D3437 Practice for Sampling and Handling Liquid Cyclic
Products
1.1 This test method covers the determination of specific
D4790 Terminology of Aromatic Hydrocarbons and Related
impurities in, and the purity of benzene for cyclohexane
Chemicals
feedstock by gas chromatography.
D6809 Guide for Quality Control and Quality Assurance
1.2 This test method has been found applicable to benzene
Procedures for Aromatic Hydrocarbons and Related Ma-
in the range from 99 % to 100 % purity and to impurities at
terials
concentrations of 2 mg ⁄kg to 10 000 mg ⁄kg. The limit of
E29 Practice for Using Significant Digits in Test Data to
detection (LOD) is 2 mg/kg for an impurity and the limit of
Determine Conformance with Specifications
quantitation (LOQ) is 6 mg/kg for an impurity.
E260 Practice for Packed Column Gas Chromatography
1.3 In determining the conformance of the test results using E355 Practice for Gas Chromatography Terms and Relation-
ships
this method to applicable specifications, results shall be
rounded off in accordance with the rounding-off method of E1510 Practice for Installing Fused Silica Open Tubular
Capillary Columns in Gas Chromatographs
Practice E29.
2.2 Other Document:
1.4 The values stated in SI units are to be regarded as
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
standard. No other units of measurement are included in this
3
1910.1200
standard.
1.5 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 See Terminology D4790 for definition of terms used in
priate safety, health, and environmental practices and deter-
this test method.
mine the applicability of regulatory limitations prior to use.
For specific hazard statements, see 7.2 and Section 8.
4. Summary of Test Method
1.6 This international standard was developed in accor-
4.1 In this test method, the chromatogram peak area for each
dance with internationally recognized principles on standard-
impurity is compared to the peak area of the internal standard
ization established in the Decision on Principles for the
(n-octane or other suitable known) added to the sample. From
Development of International Standards, Guides and Recom-
the response factor of toluene relative to that of the internal
mendations issued by the World Trade Organization Technical
standard, and using a response factor of 1.00 for nonaromatic
Barriers to Trade (TBT) Committee.
impurities and the amount of internal standard added, the
2. Referenced Documents
concentrations of the impurities are calculated. The benzene
2
content is obtained by subtracting the total amount of all
2.1 ASTM Standards:
impurities from 100.00.
1
This test method is under the jurisdiction of ASTM Committee D16 on
5. Significance and Use
Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsi-
bility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and 5.1 This test method is useful for benzene purity on the
Their Derivatives.
basis of impurities normally present in benzene and may be
Current edition approved May 1, 2023. Published May 2023. Originally
used for final product inspections and process control.
ɛ1
approved in 1995. Last previous edition approved in 2018 as D5713 – 14 (2018) .
DOI: 10.1520/D5713-23.
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 U.S. Government Printing Office Superintendent of Documents,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
*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 ----------------------
D5713 − 23
TABLE 2 Summary of Precision Data
5.2 This test method will detect the following impurities:
toluene, methylcyclopentane,
...
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.
´1
Designation: D5713 − 14 (Reapproved 2018) D5713 − 23
Standard Test Method for
Analysis of High Purity Benzene for Cyclohexane Feedstock
1
by Capillary Gas Chromatography
This standard is issued under the fixed designation D5713; 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
ε NOTE—Editorial corrections made in Footnote 1 and 8.1 in June 2018.
1. Scope Scope*
1.1 This test method covers the determination of specific impurities in, and the purity of benzene for cyclohexane feedstock by
gas chromatography.
1.2 This test method has been found applicable to benzene in the range from 9999 % to 100 % purity and to impurities at
concentrations of 22 mg ⁄kg to 10 000 mg/kg.mg ⁄kg. The limit of detection (LOD) is 2 mg/kg for an impurity and the limit of
quantitation (LOQ) is 6 mg/kg for an impurity.
1.3 In determining the 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 E29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use. For specific hazard statements, see 7.2 and Section 8.
1.6 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:
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D4790 Terminology of Aromatic Hydrocarbons and Related Chemicals
D6809 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
E260 Practice for Packed Column Gas Chromatography
E355 Practice for Gas Chromatography Terms and Relationships
1
This test method is under the jurisdiction of ASTM Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsibility of
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.
Current edition approved June 1, 2018May 1, 2023. Published June 2018May 2023. Originally approved in 1995. Last previous edition approved in 20142018 as
ɛ1
D5713 – 14.D5713 – 14 (2018) . DOI: 10.1520/D5713-14R18E01.10.1520/D5713-23.
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 ----------------------
D5713 − 23
E1510 Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs
2.2 Other Document:
3
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Terminology
3.1 Definitions:
3.1.1 See Terminology D4790 for definition of terms used in this test method.
4. Summary of Test Method
4.1 In this test method, the chromatogram peak area for each impurity is compared to the peak area of the internal standard
(n-octane or other suitable known) added to the sample. From the response factor of toluene relative to that of the internal standard,
and using a response factor of 1.00 for nonaromatic impurities and the amount of internal standard added, the concentrations of
the impurities are calculated. The benzene content is obtained by subtracting the total amount of all impurities from 100.00.
5. Significance and Use
5.1 This test method is useful for benzene purity on the basis of impurities normally present in benzene and may be used for final
product inspections and process control.
5.2 T
...
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