ASTM D7359-14a

Standard Test Method for Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their Mixtures by Oxidative Pyrohydrolytic Combustion followed by Ion Chromatography Detection (Combustion Ion Chromatography-CIC)

SIGNIFICANCE AND USE
5.1 The total fluorine, chlorine and sulfur contained in aromatic hydrocarbon matrices can contribute to emissions, be harmful to many catalytic chemical processes, and lead to corrosion. This test method can be used to determine total sulfur and halogens in aromatic hydrocarbons and their mixtures. The results can be used for compliance determinations when acceptable to a regulatory authority using performance based criteria.
SCOPE
1.1 This test method covers the individual determination of total fluorine, chlorine and sulfur in aromatic hydrocarbons and their mixtures. Samples containing 0.10 to 10 mg/kg of each element can be analyzed.  
1.2 This method can be applied to sample concentrations outside the range of the scope by dilution of the sample in an appropriate solvent to bring the total concentrations of fluorine, chlorine and sulfur within the range covered by the test method. However, it is the responsibility of the analyst to verify the solubility of the sample in the solvent and that the diluted sample results conform to the precision and accuracy of the method.  
1.2.1 Special considerations must be made in order to attain detection limits below 1.0 mg/kg in a sample. The instrument must be clean and properly maintained to address potential sources of contamination, or carryover, or both. Multiple sequential injections shall be completed until a stable background is attained. A stable background is considered to be achieved when the analysis of a minimum of three consecutive system blanks have area counts equal to or less than 5 % RSD for the anions of interest.  
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 and health practices and determine the applicability of regulatory limitations prior to use. See Section 9.

General Information

• Status: Historical
• Publication Date: 30-Nov-2014
• ICS: 71.080.20 - Halogenated hydrocarbons
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.04 - Instrumental Analysis

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
Designation: D7359 − 14a
Standard Test Method for
Total Fluorine, Chlorine and Sulfur in Aromatic
Hydrocarbons and Their Mixtures by Oxidative
Pyrohydrolytic Combustion followed by Ion
Chromatography Detection (Combustion Ion
1
Chromatography-CIC)
This standard is issued under the fixed designation D7359; 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* responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This test method covers the individual determination of
bility of regulatory limitations prior to use. See Section 9.
totalfluorine,chlorineandsulfurinaromatichydrocarbonsand
their mixtures. Samples containing 0.10 to 10 mg/kg of each
2. Referenced Documents
element can be analyzed.
2
2.1 ASTM Standards:
1.2 This method can be applied to sample concentrations
D1193Specification for Reagent Water
outside the range of the scope by dilution of the sample in an
D3437Practice for Sampling and Handling Liquid Cyclic
appropriatesolventtobringthetotalconcentrationsoffluorine,
Products
chlorine and sulfur within the range covered by the test
D3505Test Method for Density or Relative Density of Pure
method. However, it is the responsibility of the analyst to
Liquid Chemicals
verify the solubility of the sample in the solvent and that the
D6809Guide for Quality Control and Quality Assurance
dilutedsampleresultsconformtotheprecisionandaccuracyof
Procedures for Aromatic Hydrocarbons and Related Ma-
the method.
terials
1.2.1 Special considerations must be made in order to attain
E29Practice for Using Significant Digits in Test Data to
detection limits below 1.0 mg/kg in a sample. The instrument
Determine Conformance with Specifications
must be clean and properly maintained to address potential
E177Practice for Use of the Terms Precision and Bias in
sources of contamination, or carryover, or both. Multiple
ASTM Test Methods
sequential injections shall be completed until a stable back-
E288Specification for Laboratory Glass Volumetric Flasks
ground is attained. A stable background is considered to be
E691Practice for Conducting an Interlaboratory Study to
achievedwhentheanalysisofaminimumofthreeconsecutive
Determine the Precision of a Test Method
system blanks have area counts equal to or less than 5% RSD
E969Specification for Glass Volumetric (Transfer) Pipets
for the anions of interest.
2.2 Other Documents:
1.3 In determining the conformance of the test results using
OSHA Regulations, 29 CFRparagraphs 1910.1000 and
3
this method to applicable specifications, results shall be
1910.1200
rounded off in accordance with the rounding-off method of
Practice E29. 3. Terminology
1.4 The values stated in SI units are to be regarded as 3.1 Definitions:
standard. No other units of measurement are included in this 3.1.1 combustion ion chromatography, n—ananalyticalsys-
standard. tem consisting of pyrohydrolytic combustion followed by ion
chromatographic detection.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee D16 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Standards volume information, refer to the standard’s Document Summary page on
Subcommittee D16.04 on Instrumental Analysis. the ASTM website.
3
Current edition approved Dec. 1, 2014. Published January 2015. Originally AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
approved in 2008. Last previous edition approved in 2014 as D7359 – 14. DOI: 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
10.1520/D7359-14A. 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 ----------------------
D7359 − 14a
3.1.2 oxidative pyrohydrolytic combustion, n—a process in 3.2.9 SO —sulfur dioxide
2
which a sample undergoes combustion at temperatures greater
3.2.10 SO —sulfur trioxide
3
than 900°C in an oxygen rich environment and in the presence
3.2.11 SO —sulfate
4
of excess water vapor not originating from the combustion of
3.2.12 Std—standard
the sample. In oxidative pyrohydrolytic combustion, the
sample is pyrolyzed into carbon dioxide, water, hydrogen 3.2.13 SRM—standard refere
...

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: D7359 − 14 D7359 − 14a
Standard Test Method for
Total Fluorine, Chlorine and Sulfur in Aromatic
Hydrocarbons and Their Mixtures by Oxidative
Pyrohydrolytic Combustion followed by Ion
Chromatography Detection (Combustion Ion
1
Chromatography-CIC)
This standard is issued under the fixed designation D7359; 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 individual determination of total fluorine, chlorine and sulfur in aromatic hydrocarbons and their
mixtures. Samples containing 0.10 to 10 mg/kg of each element can be analyzed.
1.2 This method can be applied to sample concentrations outside the range of the scope by dilution of the sample in an
appropriate solvent to bring the total concentrations of fluorine, chlorine and sulfur within the range covered by the test method.
However, it is the responsibility of the analyst to verify the solubility of the sample in the solvent and that the diluted sample results
conform to the precision and accuracy of the method.
1.2.1 Special considerations must be made in order to attain detection limits below 1.0 mg/kg in a sample. The instrument must
be clean and properly maintained to address potential sources of contamination, or carryover, or both. Multiple sequential
injections shall be completed until a stable background is attained. A stable background is considered to be achieved when the
analysis of a minimum of three consecutive system blanks have area counts equal to or less than 5 % 5 % RSD for the anions of
interest.
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 and health practices and determine the applicability of regulatory
limitations prior to use. See Section 9.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D3505 Test Method for Density or Relative Density of Pure Liquid 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
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E288 Specification for Laboratory Glass Volumetric Flasks
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E969 Specification for Glass Volumetric (Transfer) Pipets
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
D16.04 on Instrumental Analysis.
Current edition approved July 1, 2014Dec. 1, 2014. Published September 2014January 2015. Originally approved in 2008. Last previous edition approved in 20132014
as D7359 – 13.14. DOI: 10.1520/D7359-14.10.1520/D7359-14A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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 ----------------------
D7359 − 14a
2.2 Other Documents:
3
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Terminology
3.1 Definitions:
3.1.1 combustion ion chromatography, n—an analytical system consisting of pyrohydrolytic combustion followed by ion
chromatographic detection.
3.1.2 oxidative pyrohydrolytic combustion, n—a process in which a sample undergoes combustion at temperatures greater than
900°C in an oxygen rich environment and in the presence of excess water vapor not originating from the combustion of the sample.
...