ASTM D6806-02(2007)e1
(Practice)Standard Practice for Analysis of Halogenated Organic Solvents and Their Admixtures by Gas Chromatography
Standard Practice for Analysis of Halogenated Organic Solvents and Their Admixtures by Gas Chromatography
ABSTRACT
This practice covers the standard procedure for determining impurities, stabilizers, and assays of halogenated organic solvents and their admixtures by gas chromatography. It is not the intent of this practice to provide a specific method of gas chromatography, but rather it defines what is required for a user to demonstrate that a method to be used is valid. The use of this practice allows the user to use the most effective technology and demonstrate that the method in use complies with a standard practice and is valid for the analytes involved.
SCOPE
1.1 This practice covers the determination of impurities, stabilizers and assay of halogenated organic solvents and their admixtures by gas chromatography.
1.2 It is not the intent of this practice to provide a specific method of gas chromatography. The intent of this practice is to define what is required for a user to demonstrate that a method to be used is valid. The reason for this approach, as opposed to stating a method, is that gas chromatography is such a dynamic field that methods are often obsolete by the time they are validated. The use of this practice allows the user to use most effective technology and demonstrate that the method in use complies with a standard practice and is valid for the analysis of halogenated organic solvents and their admixtures.
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.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D6806–02 (Reapproved 2007)
Standard Practice for
Analysis of Halogenated Organic Solvents and Their
Admixtures by Gas Chromatography
This standard is issued under the fixed designation D6806; 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.
´ NOTE—The spelling of millivolts was corrected in 5.1 in March 2007.
1. Scope 3.1.1 Purity or assay are defined as 100 − sum(impurities +
stabilizer) when impurities and stabilizers are expressed in %;
1.1 This practice covers the determination of impurities,
3.1.2 Or 100 − [sum(impurities + stabilizer)/10000] when
stabilizers and assay of halogenated organic solvents and their
impurities are expressed in ppm.
admixtures by gas chromatography.
3.2 Accuracy is defined per A2.2.1 of Practice E180 or the
1.2 It is not the intent of this practice to provide a specific
agreement between an experimentally determined value and
method of gas chromatography.The intent of this practice is to
the accepted reference value.
define what is required for a user to demonstrate that a method
3.3 Precision is defined per A2.1.7 of Practice E180 or the
to be used is valid.The reason for this approach, as opposed to
degree of agreement of repeated measurements of the same
statingamethod,isthatgaschromatographyissuchadynamic
property. It is generally expressed in standard deviations or
field that methods are often obsolete by the time they are
percent relative standard deviation (s/X)·100, also known as
validated. The use of this practice allows the user to use most
coefficient of variation.
effective technology and demonstrate that the method in use
complies with a standard practice and is valid for the analysis
4. Summary of Practice
of halogenated organic solvents and their admixtures.
4.1 This practice will define the requirements for a gas
1.3 This standard does not purport to address all of the
chromatographic (GC) method to be valid for the determina-
safety concerns, if any, associated with its use. It is the
tion of impurities, stabilizers and assay of halogenated organic
responsibility of the user of this standard to establish appro-
solvents and their admixtures.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Method Requirements
5.1 The GC method must give adequate separation of the
2. Referenced Documents
2 impuritiesandstabilizerscommontotheproductinquestionso
2.1 ASTM Standards:
thattheinstrumentresponse(areacounts,millivolts,etc.)tothe
E180 Practice for Determining the Precision of ASTM
individual impurities or stabilizers can be measured with
Methods for Analysis and Testing of Industrial and Spe-
3 adequate precision and accuracy as defined in Section 6.
cialty Chemicals
Process knowledge from the supplier or manufacturer of the
3. Terminology productisaresourceofinformationastowhatthoseimpurities
and stabilizers are. GC-Mass Spectrometry (GC-MS) is an-
3.1 Purity and assay are used interchangeably in this stan-
other resource to initially determine what components are
dard.
present to be measured. See Table 1 for a list of possible
impurities and stabilizers for each product.
This practice is under the jurisdiction of ASTM Committee D26 on Haloge-
5.2 Non polar capillary columns of about 0.32 mm by 30 m
nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-
generally work well. Table 2 provides a list of columns that
bility of Subcommittee D26.04 on Test Methods.
may prove suitable for the analysis of the halogenated organic
Current edition approved Feb. 1, 2007. Published March 2007. Originally
approved in 2002. Last previous edition approved in 2002 as D6806-02. DOI:
products.
10.1520/D6806-02R07E01.
5.3 Instrument Conditions—The following GC conditions
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
are often appropriate for the analysis of halogenated organic
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 products and their admixtures though actual conditions should
the ASTM website.
be optimized for the analysis being performed.
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6806–02 (2007)
TABLE 1 Impurities and Stabilizer
5.5 Responsetocomponentsmustnotbeoutofrangeofthe
Possible Impurities detector and should be sufficiently Gaussian (symmetrical) to
Product
and Stabilizers
allow adequate measurement as defined by Section 6. Out of
Methylene Chloride Methyl Chloride
range response can be corrected by changing the range of the
Vinyl Chloride
instrument or changing sample size.
Ethyl Chloride
5.6 Purity or assay of unblended halogenated organic sol-
Vinylidene Chloride
Trans 1,2-Dichloroethylene
vents will be determined by determining the amounts of the
Cis 1,2-Dichloroethylene
individualimpuritiesandstabilizersandsubtractingthetotalof
Chloroform
those impurities and stabilizers from 100%. Purity or assay
Carbon Tetra
...
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