ASTM D5917-15e1
(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 C10 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.
General Information
Relations
Buy Standard
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
´1
Designation: D5917 − 15
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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Research Report information was added editorially in September 2015.
1. Scope* bility of regulatory limitations prior to use. For specific hazard
statement, see Section 9.
1.1 This test method covers the determination of the total
nonaromatic hydrocarbons and trace monocyclic aromatic
2. Referenced Documents
hydrocarbons in toluene, mixed xylenes, and p-xylene by gas
2
2.1 ASTM Standards:
chromatography. The purity of toluene, mixed xylenes, or
D841Specification for Nitration Grade Toluene
p-xylene can also be calculated. Calibration of the gas chro-
D2360Test Method for Trace Impurities in Monocyclic
matographic system is done by the external standard calibra-
Aromatic Hydrocarbons by Gas Chromatography
tion technique. A similar test method, using the internal
D3437Practice for Sampling and Handling Liquid Cyclic
standard calibration technique, is Test Method D2360.
Products
1.2 Total aliphatic hydrocarbons containing 1 through 10
D4052Test Method for Density, Relative Density, and API
carbon atoms (methane through decanes) can be detected by
Gravity of Liquids by Digital Density Meter
this test method at concentrations ranging from 0.001 to 2.500
D4307Practice for Preparation of Liquid Blends for Use as
weight %.
Analytical Standards
1.2.1 A small amount of benzene in mixed xylenes or
D4790Terminology ofAromatic Hydrocarbons and Related
p-xylenesmaynotbedistinguishedfromthenonaromaticsand
Chemicals
the concentrations are determined as a composite (see 6.1).
D5136Specification for High Purity p-Xylene
1.3 Monocyclicaromatichydrocarbonimpuritiescontaining
D5211Specification for Xylenes for p-Xylene Feedstock
6 through 10 carbon atoms (benzene through C aromatics)
D6526Test Method for Analysis of Toluene by Capillary
10
canbedetectedbythistestmethodatindividualconcentrations
Column Gas Chromatography
ranging from 0.001 to 1.000 weight %.
D6563Test Method for Benzene, Toluene, Xylene (BTX)
Concentrates Analysis by Gas Chromatography
1.4 In determining the conformance of the test results to
D6809Guide for Quality Control and Quality Assurance
applicable specifications, results shall be rounded off in accor-
Procedures for Aromatic Hydrocarbons and Related Ma-
dance with the rounding-off method of Practice E29.
terials
1.5 The values stated in SI units are to be regarded as
E29Practice for Using Significant Digits in Test Data to
standard. No other units of measurement are included in this
Determine Conformance with Specifications
standard.
E260Practice for Packed Column Gas Chromatography
1.6 This standard does not purport to address all of the
E355PracticeforGasChromatographyTermsandRelation-
safety concerns, if any, associated with its use. It is the
ships
responsibility of the user of this standard to establish appro-
E691Practice for Conducting an Interlaboratory Study to
priate safety and health practices and determine the applica-
Determine the Precision of a Test Method
E1510Practice for Installing Fused Silica Open Tubular
1 Capillary Columns in Gas Chromatographs
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
2
Derivatives. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 1, 2015. Published May 2015. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1996. Last previous edition approved in 2012 as D5917–12. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D5917-15E01. 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 ----------------------
´1
D5917 − 15
TABLE 1 Recommended Operating Conditions
unknown or undetected components are contained within the
Inlet Split material being examined.
Temperature, °C 270
5.3 This test method is similar to Test Method D2360,
Column:
Tubing fused silica
however, interlaboratory testing has indicated a bias may exist
Length, m 60
between the two methods. Therefore the user is cautioned that
Internal diameter, mm
...
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: D5917 − 15 D5917 − 15
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
ε NOTE—Research Report information was added editorially in September 2015.
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-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 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
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 Feb. 1, 2015. Published May 2015. Originally approved in 1996. Last previous edition approved in 2012 as D5917 – 12. DOI:
10.1520/D5917-15.10.1520/D5917-15E01.
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 ----------------------
´1
D5917 − 15
TABLE 1 Recommended Operating Conditions
Inlet Split
Temperature, °C 270
Column:
Tubing fused silica
Length, m 60
Internal diameter, mm 0.32
Stationary phase crosslinked polyethylene glycol
Film thickness, μm 0.25
Column temperature program
Initial t
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.