Standard Test Method for Speciation of the Volatile Organic Compounds (VOCs) in Low VOC Content Waterborne Air-Dry Coatings by Gas Chromatograpy

SIGNIFICANCE AND USE
In using Practice D 3960 to measure the regulatory VOC content of coatings, precision tends to be poor for low VOC content waterborne coatings because the VOC weight fraction is determined indirectly. The present method first identifies and then quantifies the weight fraction of individual VOCs directly in low VOC content waterborne air-dry coatings. The total VOC weight fraction can be obtained by adding the individual weight fraction values (Note 3).
Note 3—An effort is currently underway in California to consider changing mass-based VOC regulations for architectural coatings to reactivity-based VOC regulations. In California, reactivity based regulations have already been implemented for aerosol coatings, that is, MIR-indexed regulations (California Air Resources Board). Reactivity based regulations would require knowing the weight fractions of each individual volatile compound present in a coating.
SPME/GC makes it possible to identify very low levels of volatile compounds in a coating and could serve to make it possible to identify the presence of hazardous air pollutants (HAPs).
SCOPE
1.1 This test method is for the determination of the weight percent of individual volatile organic compounds in low VOC content waterborne latex air-dry coatings. The method is intended primarily for analysis of waterborne coatings in which the material VOC content is below 5 weight percent. The method has been used successfully with higher VOC content waterborne coatings.
1.2 This method may also be used to measure the exempt volatile organic compound content (acetone, methyl acetate, and p-chlorobezotrifluoride) of waterborne coatings. The methodology is virtually identical to that used in Test Method D 6133 and similar to that used in Test Method D 6438.  
1.3 Volatile compounds that are present at the 0.05 weight percent level or greater can be determined. Solid phase microextraction will detect volatile compounds at lower levels.
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.

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31-May-2009
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ASTM D6886-03(2009) - Standard Test Method for Speciation of the Volatile Organic Compounds (VOCs) in Low VOC Content Waterborne Air-Dry Coatings by Gas Chromatograpy
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D6886–03(Reapproved2009)
Standard Test Method for
Speciation of the Volatile Organic Compounds (VOCs) in
Low VOC Content Waterborne Air-Dry Coatings by Gas
1
Chromatograpy
This standard is issued under the fixed designation D6886; 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 D3792 Test Method for Water Content of Coatings by
Direct Injection Into a Gas Chromatograph
1.1 This test method is for the determination of the weight
D3925 Practice for Sampling Liquid Paints and Related
percent of individual volatile organic compounds in low VOC
Pigmented Coatings
content waterborne latex air-dry coatings. The method is
D3960 Practice for Determining Volatile Organic Com-
intendedprimarilyforanalysisofwaterbornecoatingsinwhich
pound (VOC) Content of Paints and Related Coatings
the material VOC content is below 5 weight percent. The
D4017 Test Method for Water in Paints and Paint Materials
method has been used successfully with higher VOC content
by Karl Fischer Method
waterborne coatings.
D6133 Test Method for Acetone, p-Chlorobenzotrifluoride,
1.2 This method may also be used to measure the exempt
MethylAcetateor t-ButylAcetateContentofSolventborne
volatile organic compound content (acetone, methyl acetate,
and Waterborne Paints, Coatings, Resins, and Raw Mate-
andp-chlorobezotrifluoride)ofwaterbornecoatings.Themeth-
rials by Direct Injection Into a Gas Chromatograph
odology is virtually identical to that used in Test Method
D6438 Test Method for Acetone, Methyl Acetate, and
D6133 and similar to that used in Test Method D6438.
Parachlorobenzotrifluoride Content of Paints, and Coat-
1.3 Volatile compounds that are present at the 0.05 weight
ings by Solid Phase Microextraction-Gas Chromatography
percent level or greater can be determined. Solid phase
E177 Practice for Use of the Terms Precision and Bias in
microextraction will detect volatile compounds at lower levels.
ASTM Test Methods
1.4 The values stated in SI units are to be regarded as
E691 Practice for Conducting an Interlaboratory Study to
standard. No other units of measurement are included in this
Determine the Precision of a Test Method
standard.
1.5 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Abbreviations:
responsibility of the user of this standard to establish appro-
3.1.1 CW/DVB—Carbowaxy/divinylbenzene
priate safety and health practices and determine the applica-
3.1.2 DB—2-(2-butoxyethoxy)ethanol; Butyl Carbitoly;
bility of regulatory limitations prior to use.
diethylene glycol monobutyl ether
2. Referenced Documents 3.1.3 EB—2-butoxyethanol; Butyl Cellosolvey; ethylene
2
glycol monobutyl ether
2.1 ASTM Standards:
3.1.4 EG—ethylene glycol
D1475 Test Method For Density of Liquid Coatings, Inks,
3.1.5 FID—flame ionization detector
and Related Products
3.1.6 F-VOC—formulation data calculated volatile organic
D2369 Test Method for Volatile Content of Coatings
compound in g/(L-water)
3.1.7 GC—gas chromatograph
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
3.1.8 PG—propylene glycol
and Related Coatings, Materials, andApplications and is the direct responsibility of
3.1.9 % RSD—percent relative standard deviation
Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials.
3.1.10 SPME—solid phase microextraction
Current edition approved June 1, 2009. Published June 2009. Originally
approved in 2003. Last previous edition approved in 2003 as D6886 - 03. DOI:
3.1.11 Std Dev—standard deviation
10.1520/D6886-03R09.
3.1.12 TX—2,2,4-trimethypentane-1,3-diol, monoisobu-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tyrate; Texanoly
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3.1.13 VOC—volatile organic compound
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D6886–03 (2009)
individual volatile compound present in a coating.
3.1.14 X-VOC—experimental volatile organic compound in
g/(L-water)
5.2 SPME/GC makes it possible to identify very low levels
of volatile compounds in a coating and could serve to make it
4. Summary of Test Method
possible to identify the presence of hazardous air pollutants
4.1 A known weight of coating is dispersed in tetrahydro-
(HAPs).
furan(THF),internallystandardized,andanalyzedbycapillary
gas chromatogr
...

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