ASTM D6806-02(2012)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D6806 − 02 (Reapproved 2012)
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. 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 3.1.2 Or 100 − [sum(impurities + stabilizer)/10000] when
impurities are expressed in ppm.
1.1 This practice covers the determination of impurities,
stabilizers and assay of halogenated organic solvents and their 3.2 Accuracy is defined per A2.2.1 of Practice E180 or the
admixtures by gas chromatography. agreement between an experimentally determined value and
the accepted reference value.
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 3.3 Precision is defined per A2.1.7 of Practice E180 or the
define what is required for a user to demonstrate that a method degree of agreement of repeated measurements of the same
to be used is valid.The reason for this approach, as opposed to property. It is generally expressed in standard deviations or
statingamethod,isthatgaschromatographyissuchadynamic percent relative standard deviation (s/X)·100, also known as
field that methods are often obsolete by the time they are coefficient of variation.
validated. The use of this practice allows the user to use most
4. Summary of Practice
effective technology and demonstrate that the method in use
complies with a standard practice and is valid for the analysis
4.1 This practice will define the requirements for a gas
of halogenated organic solvents and their admixtures.
chromatographic (GC) method to be valid for the determina-
tion of impurities, stabilizers and assay of halogenated organic
1.3 This standard does not purport to address all of the
solvents and their admixtures.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Method Requirements
priate safety and health practices and determine the applica-
5.1 The GC method must give adequate separation of the
bility of regulatory limitations prior to use.
impuritiesandstabilizerscommontotheproductinquestionso
2. Referenced Documents
thattheinstrumentresponse(areacounts,millivolts,etc.)tothe
individual impurities or stabilizers can be measured with
2.1 ASTM Standards:
adequate precision and accuracy as defined in Section 6.
E180Practice for Determining the Precision of ASTM
Process knowledge from the supplier or manufacturer of the
Methods for Analysis and Testing of Industrial and Spe-
productisaresourceofinformationastowhatthoseimpurities
cialty Chemicals (Withdrawn 2009)
and stabilizers are. GC-Mass Spectrometry (GC-MS) is an-
3. Terminology
other resource to initially determine what components are
present to be measured. See Table 1 for a list of possible
3.1 Purity and assay are used interchangeably in this stan-
impurities and stabilizers for each product.
dard.
3.1.1 Purity or assay are defined as 100 − sum(impurities +
5.2 Non polar capillary columns of about 0.32 mm by 30 m
stabilizer) when impurities and stabilizers are expressed in %;
generally work well. Table 2 provides a list of columns that
may prove suitable for the analysis of the halogenated organic
products.
This practice is under the jurisdiction of ASTM Committee D26 on Haloge-
nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-
5.3 Instrument Conditions—The following GC conditions
bility of Subcommittee D26.04 on Test Methods.
are often appropriate for the analysis of halogenated organic
Current edition approved March 1, 2012. Published June 2012. Originally
approved in 2002. Last previous edition approved in 2007 as D6806-02 (2007).
products and their admixtures though actual conditions should
DOI: 10.1520/D6806-02R12.
be optimized for the analysis being performed.
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
5.4 The separation is determined to be adequate by prepar-
Standards volume information, refer to the standard’s Document Summary page on
ing standards of known amounts of the impurities and stabi-
the ASTM website.
3 lizers in concentrations near enough to the expected concen-
The last approved version of this historical standard is referenced on
www.astm.org. trations in the sample for the instrument response to be linear
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D6806 − 02 (2012)
TABLE 1 Impurities and Stabilizer
allow adequate measurement as defined by Section 6. Out of
Possible Impurities range response can be corrected by changing the range of the
Product
and Stabilizers
instrument or changing sample size.
Methylene Chloride Methyl Chloride
5.6 Purity or assay of unblended halogenated organic sol-
Vinyl Chloride
Ethyl Chloride
vents will be determined by determining the amounts of the
Vinylidene Chloride
individualimpuritiesandstabilizersandsubtractingthetotalof
Trans 1,2-Dichloroethylene
those impur
...