ASTM D5917-12
(Test Method)Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and External Calibration
Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and External Calibration
SIGNIFICANCE AND USE
5.1 Determining the type and amount of hydrocarbon impurities remaining from the manufacture of toluene, mixed xylenes, and p-xylenes used as chemical intermediates and solvents is often required. This test method is suitable for setting specifications and for use as an internal quality control tool where these products are produced or are used. Typical impurities are: alkanes containing 1 to 10 carbons atoms, benzene, toluene, ethylbenzene (EB), xylenes, and aromatic hydrocarbons containing nine carbon atoms.
5.2 Purity is commonly reported by subtracting the determined expected impurities from 100.00. However, a gas chromatographic analysis cannot determine absolute purity if unknown or undetected components are contained within the material being examined.
5.3 This test method is similar to Test Method D2360, however, interlaboratory testing has indicated a bias may exist between the two methods. Therefore the user is cautioned that the two methods may not give comparable results.
SCOPE
1.1 This test method covers the determination of the total nonaromatic hydrocarbons and trace monocyclic aromatic hydrocarbons in toluene, mixed xylenes, and p-xylene by gas chromatography. The purity of toluene, mixed xylenes, or p-xylene can also be calculated. Calibration of the gas chromatographic system is done by the external standard calibration technique. A similar test method, using the internal standard calibration technique, is Test Method D2360.
1.2 Total aliphatic hydrocarbons containing 1 through 10 carbon atoms (methane through decanes) can be detected by this test method at concentrations ranging from 0.001 to 2.500 weight %.
1.2.1 A small amount of benzene in mixed xylenes or p-xylenes may not be distinguished from the nonaromatics and the concentrations are determined as a composite (see 6.1).
1.3 Monocyclic aromatic hydrocarbon impurities containing 6 through 10 carbon atoms (benzene through C 10 aromatics) can be detected by this test method at individual concentrations ranging from 0.001 to 1.000 weight %.
1.4 In determining the conformance of the test results to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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 statement, see Section 9.
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Designation: D5917 − 12
StandardTest Method for
Trace Impurities in Monocyclic Aromatic Hydrocarbons by
1
Gas Chromatography and External Calibration
This standard is issued under the fixed designation D5917; 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
1.1 This test method covers the determination of the total 2.1 ASTM Standards:
nonaromatic hydrocarbons and trace monocyclic aromatic
D841Specification for Nitration Grade Toluene
hydrocarbons in toluene, mixed xylenes, and p-xylene by gas D2360Test Method for Trace Impurities in Monocyclic
chromatography. The purity of toluene, mixed xylenes, or
Aromatic Hydrocarbons by Gas Chromatography
p-xylene can also be calculated. Calibration of the gas chro- D3437Practice for Sampling and Handling Liquid Cyclic
matographic system is done by the external standard calibra-
Products
tion technique. A similar test method, using the internal D4052Test Method for Density, Relative Density, and API
standard calibration technique, is Test Method D2360.
Gravity of Liquids by Digital Density Meter
D4307Practice for Preparation of Liquid Blends for Use as
1.2 Total aliphatic hydrocarbons containing 1 through 10
Analytical Standards
carbon atoms (methane through decanes) can be detected by
D4790Terminology ofAromatic Hydrocarbons and Related
this test method at concentrations ranging from 0.001 to 2.500
Chemicals
weight %.
D5136Specification for High Purity p-Xylene
1.2.1 A small amount of benzene in mixed xylenes or
D5211Specification for Xylenes for p-Xylene Feedstock
p-xylenesmaynotbedistinguishedfromthenonaromaticsand
D6526Test Method for Analysis of Toluene by Capillary
the concentrations are determined as a composite (see 6.1).
Column Gas Chromatography
1.3 Monocyclicaromatichydrocarbonimpuritiescontaining D6563Test Method for Benzene, Toluene, Xylene (BTX)
Concentrates Analysis by Gas Chromatography
6 through 10 carbon atoms (benzene through C aromatics)
10
canbedetectedbythistestmethodatindividualconcentrations D6809Guide for Quality Control and Quality Assurance
Procedures for Aromatic Hydrocarbons and Related Ma-
ranging from 0.001 to 1.000 weight %.
terials
1.4 In determining the conformance of the test results to
E29Practice for Using Significant Digits in Test Data to
applicable specifications, results shall be rounded off in accor-
Determine Conformance with Specifications
dance with the rounding-off method of Practice E29.
E260Practice for Packed Column Gas Chromatography
1.5 The values stated in SI units are to be regarded as
E355PracticeforGasChromatographyTermsandRelation-
standard. No other units of measurement are included in this ships
standard.
E691Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.6 This standard does not purport to address all of the
E1510Practice for Installing Fused Silica Open Tubular
safety concerns, if any, associated with its use. It is the
Capillary Columns in Gas Chromatographs
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 2.2 Other Document:
bility of regulatory limitations prior to use. For specific hazard OSHA Regulations, 29 CFRparagraphs 1910.1000 and
3
statement, see Section 9. 1910.1200
1 2
This test method is under the jurisdiction of ASTM Committee D16 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Standards volume information, refer to the standard’s Document Summary page on
Derivatives. the ASTM website.
3
Current edition approved Sept. 15, 2012. Published September 2102. Originally AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
approved in 1996. Last previous edition approved in 2009 as D5917–09. DOI: 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
10.1520/D5917-12. 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
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D5917 − 12
TABLE 1 Recommended Operating Conditions
3. Terminology
Inlet Split
3.1 SeeTerminology D4790 for definitions of terms used in
Temperature, °C 270
this test method.
Column:
Tubing fused silica
3.2 Mixed xylenes are a mixture of C aromatics
...
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: D5917 − 09 D5917 − 12
Standard Test Method for
Trace Impurities in Monocyclic Aromatic Hydrocarbons by
1
Gas Chromatography and External Calibration
This standard is issued under the fixed designation D5917; 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 This test method covers the determination of the total nonaromatic hydrocarbons and trace monocyclic aromatic
hydrocarbons in toluene, mixed xylenes, and p-xylenes-xylene by gas chromatography. The purity of toluene, mixed xylenes, or
p-xylenes-xylene can also be calculated. Calibration of the gas chromatographic system is done by the external standard calibration
technique. A similar test method, using the internal standard calibration technique, is Test Method D2360.
1.2 Total aliphatic hydrocarbons containing 1 through 10 carbon atoms (methane through decanes) can be detected by this test
method at concentrations ranging from 0.001 to 2.500 weight %.
1.2.1 A small amount of benzene in mixed xylenes or p-xylenes may not be distinguished from the nonaromatics and the
concentrations are determined as a composite (see 6.1).
1.3 Monocyclic aromatic hydrocarbon impurities containing 6 through 10 carbon atoms (benzene through C aromatics) can
10
be detected by this test method at individual concentrations ranging from 0.001 to 1.000 weight %.
1.4 In determining the conformance of the test results to applicable specifications, results shall be rounded off in accordance
with the rounding-off method of Practice E29.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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 statement, see Section 9.
2. Referenced Documents
2
2.1 ASTM Standards:
D841 Specification for Nitration Grade Toluene
3
D2306 Test Method for C Aromatic Hydrocarbon Analysis by Gas Chromatography (Withdrawn 2006)
8
D2360 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards
D4790 Terminology of Aromatic Hydrocarbons and Related Chemicals
D5136 Specification for High Purity p-Xylene
D5211 Specification for Xylenes for p-Xylene Feedstock
D6526 Test Method for Analysis of Toluene by Capillary Column Gas Chromatography
D6563 Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography
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 Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.
Current edition approved Jan. 1, 2009Sept. 15, 2012. Published January 2009September 2102. Originally approved in 1996. Last previous edition approved in 20022009
as D5917 – 02.D5917 – 09. DOI: 10.1520/D5917-09.10.1520/D5917-12.
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 ----------------------
D5917 − 12
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1510 Practice for Installing Fused Silica Open Tubular Capillary Columns in Ga
...
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