ASTM D6886-12
(Test Method)Standard Test Method for Determination of the Individual Volatile Organic Compounds (VOCs) in Air-Dry Coatings by Gas Chromatography
Standard Test Method for Determination of the Individual Volatile Organic Compounds (VOCs) in Air-Dry Coatings by Gas Chromatography
SIGNIFICANCE AND USE
In using Practice D3960 to measure the VOC content of waterborne coatings, precision tends to be poor for low VOC content air-dry coatings when the VOC weight fraction is determined indirectly. The present method first identifies and then quantifies the weight fraction of individual VOCs directly in air-dry coatings. The total VOC weight fraction can be obtained by adding the individual weight fraction values (Note 4).
Note 4—The present method may be used to speciate solvent-borne air-dry coatings. However, since these normally contain high, and often complex, quantities of solvent, precision tends to be better using the methods contained in Practice D3960, where the VOC fraction is determined by a direct weight loss determination.
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 air-dry coatings.
1.2 The method can be used to determine the weight fraction VOC content 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 and with solvent-borne coatings (Note 1).
1.3 The method may also be used to measure the exempt volatile organic compound content (acetone, methyl acetate, t-butyl acetate and p-chlorobezotrifluoride) of waterborne and solvent-borne coatings. The methodology is virtually identical to that used in Test Method D6133 which, as written, is specific for only exempt volatile compounds.
1.4 Volatile compounds that are present at the 0.005 weight percent level or greater can be determined.
Note 1—This test method may be used for the VOC analysis of coatings containing silanes, siloxanes, and silane-siloxane blends. The test method is not suitable for the analysis of coatings that cure by chemical reaction (this includes two-component coatings and coatings which cure when heated) because dilution with a solvent would impede the chemical reaction required for these types of coatings. This test method measures the VOC weight fraction of air-dry coatings directly as opposed to the methods of Practice D3960 which measure the VOC weight fraction of air-dry waterborne coatings indirectly. A direct measurement of VOC weight fraction, particularly in low VOC content waterborne coatings, generally gives better precision. California Polytechnic State University carried out an extensive study for the California Air Resources Board comparing the precision of the direct method with the indirect method (CARB Standard Agreement No. 04.329). This study may be used to decide if the present method or the methods of Practice D3960 are preferred as an analysis method for obtaining the best possible precision for measuring the mass-based VOC content of a specific coating.
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.
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Designation: D6886 − 12
StandardTest Method for
Determination of the Individual Volatile Organic Compounds
1
(VOCs) in Air-Dry Coatings by Gas Chromatography
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 1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This test method is for the determination of the weight
responsibility of the user of this standard to establish appro-
percent of individual volatile organic compounds in air-dry
priate safety and health practices and determine the applica-
coatings.
bility of regulatory limitations prior to use.
1.2 The method can be used to determine the weight
fraction VOC content of waterborne coatings in which the
2. Referenced Documents
material VOC content is below 5 weight percent. The method
3
2.1 ASTM Standards:
has been used successfully with higher VOC content water-
D2369 Test Method for Volatile Content of Coatings
borne coatings and with solvent-borne coatings (Note 1).
D3792 Test Method forWater Content of Coatings by Direct
1.3 The method may also be used to measure the exempt
Injection Into a Gas Chromatograph
volatile organic compound content (acetone, methyl acetate,
D3960 PracticeforDeterminingVolatileOrganicCompound
t-butyl acetate and p-chlorobezotrifluoride) of waterborne and
(VOC) Content of Paints and Related Coatings
solvent-borne coatings. The methodology is virtually identical
D4017 Test Method for Water in Paints and Paint Materials
tothatusedinTestMethodD6133which,aswritten,isspecific
by Karl Fischer Method
for only exempt volatile compounds.
D6133 Test Method for Acetone, p-Chlorobenzotrifluoride,
1.4 Volatile compounds that are present at the 0.005 weight Methyl Acetate or t-Butyl Acetate Content of Solvent-
borne and Waterborne Paints, Coatings, Resins, and Raw
percent level or greater can be determined.
NOTE 1—This test method may be used for the VOC analysis of
Materials by Direct Injection Into a Gas Chromatograph
coatings containing silanes, siloxanes, and silane-siloxane blends.The test
E177 Practice for Use of the Terms Precision and Bias in
method is not suitable for the analysis of coatings that cure by chemical
ASTM Test Methods
reaction (this includes two-component coatings and coatings which cure
E691 Practice for Conducting an Interlaboratory Study to
when heated) because dilution with a solvent would impede the chemical
Determine the Precision of a Test Method
reaction required for these types of coatings. This test method measures
the VOC weight fraction of air-dry coatings directly as opposed to the
methods of Practice D3960 which measure the VOC weight fraction of 3. Terminology
air-dry waterborne coatings indirectly. A direct measurement of VOC
3.1 Abbreviations:
weight fraction, particularly in low VOC content waterborne coatings,
3.1.1 EGDE—ethylene glycol diethyl ether
generally gives better precision. California Polytechnic State University
carried out an extensive study for the California Air Resources Board 4
3.1.2 DB—2-(2-butoxyethoxy)ethanol; Butyl Carbitol; di-
comparing the precision of the direct method with the indirect method
ethylene glycol monobutyl ether
2
(CARB Standard Agreement No. 04.329). This study may be used to
5
decide if the present method or the methods of Practice D3960 are
3.1.3 EB—2-butoxyethanol; Butyl Cellosolve; ethylene
preferred as an analysis method for obtaining the best possible precision
glycol monobutyl ether
for measuring the mass-based VOC content of a specific coating.
3.1.4 EG—ethylene glycol
1.5 The values stated in SI units are to be regarded as
3.1.5 FID—flame ionization detector
standard. No other units of measurement are included in this
standard.
3.1.6 F-VOC—formulation data calculated volatile organic
compound in g/(L-water)
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
3
Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2012. Published June 2012. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2003. Last previous edition approved in 2009 as D6886 - 03 (2009). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/D6886-12. the ASTM website.
4
2
Detailed results of this study may be found at http://www.arb.ca.
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D6886–03(Reapproved2009) Designation:D6886–12
Standard Test Method for
Speciation of the Volatile Organic Compounds (VOCs) in
Low VOC Content Waterborne Air-Dry Coatings by Gas
ChromatograpyDetermination of the Individual Volatile
Organic Compounds (VOCs) in Air-Dry Coatings by Gas
1
Chromatography
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
1.1 ThistestmethodisforthedeterminationoftheweightpercentofindividualvolatileorganiccompoundsinlowVOCcontent
waterborne latex air-dry coatings. The method is intended primarily for analysisair-dry coatings.
1.2 The method can be used to determine the weight fraction VOC content of waterborne coatings in which the material VOC
content is below 5 weight percent.The method has been used successfully with higherVOC content waterborne coatings and with
solvent-borne coatings (Note 1).
1.2This1.3 The method may also be used to measure the exempt volatile organic compound content (acetone, methyl acetate,
t-butyl acetate and p-chlorobezotrifluoride) of waterborne and solvent-borne coatings. The methodology is virtually identical to
that used in Test Method D6133 and similar to that used in Test Method D6438.
1.3Volatilecompoundsthatarepresentatthe0.05weightpercentlevelorgreatercanbedetermined.Solidphasemicroextraction
will detect volatile compounds at lower levels.
1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5which, as written, is specific for only exempt volatile compounds.
1.4 Volatile compounds that are present at the 0.005 weight percent level or greater can be determined.
NOTE 1—This test method may be used for the VOC analysis of coatings containing silanes, siloxanes, and silane-siloxane blends. The test method
is not suitable for the analysis of coatings that cure by chemical reaction (this includes two-component coatings and coatings which cure when heated)
because dilution with a solvent would impede the chemical reaction required for these types of coatings. This test method measures the VOC weight
fraction of air-dry coatings directly as opposed to the methods of Practice D3960 which measure the VOC weight fraction of air-dry waterborne coatings
indirectly. A direct measurement of VOC weight fraction, particularly in low VOC content waterborne coatings, generally gives better precision.
CaliforniaPolytechnicStateUniversitycarriedoutanextensivestudyfortheCaliforniaAirResourcesBoardcomparingtheprecisionofthedirectmethod
2
with the indirect method (CARB Standard Agreement No. 04.329). This study may be used to decide if the present method or the methods of Practice
D3960 are preferred as an analysis method for obtaining the best possible precision for measuring the mass-based VOC content of a specific coating.
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.
2. Referenced Documents
2.1 ASTM Standards:
3
D1475Test Method For Density of Liquid Coatings, Inks, and Related Products
D2369 Test Method for Volatile Content of Coatings
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials.
Current edition approved JuneMay 1, 2009.2012. Published June 2009.2012. Originally approved in 2003. Last previous edition approved in 20032009 as
D6886 - 03 (2009). DOI: 10.1520/D6886-03R09.10.1520/D6886-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
2
Detailed results of this study may be found at http://www.arb.ca.gov/coatings/arch/Final_Report_6_11_09.pdf.
3
Available from the Supelco Company, Supelco Park, Bellefo
...
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