ASTM D6886-18
(Test Method)Standard Test Method for Determination of the Weight Percent Individual Volatile Organic Compounds in Waterborne Air-Dry Coatings by Gas Chromatography
Standard Test Method for Determination of the Weight Percent Individual Volatile Organic Compounds in Waterborne Air-Dry Coatings by Gas Chromatography
SIGNIFICANCE AND USE
5.1 In using Practice D3960 to measure the volatile organic compound content of waterborne coatings, precision can be poor for low volatile organic compound content air-dry coatings if the volatile organic weight percent is determined indirectly. The present method directly identifies and then quantifies the weight percent of individual volatile organic compounds in air-dry coatings (Note 6). The total volatile organic weight percent can be obtained by adding the individual weight percent values (Note 7).
Note 6: 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 other methods contained in Practice D3960, where the volatile fraction is determined by a direct weight loss determination.
Note 7: Detectable compounds may result from thermal decomposition in a hot injection port or from reaction with the extraction solvent. If it can be shown that a material is a decomposition product, or is the result of a reaction with the extraction solvent, then results for that compound should be discounted from the volatile measured by Test Method D6886.
SCOPE
1.1 This test method is for the determination of the weight percent of individual volatile organic compounds in waterborne air-dry coatings (Note 1).
1.2 This method may be used for the analysis of coatings containing silanes, siloxanes, and silane-siloxane blends.
1.3 This 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 the dilution herein required will impede the chemical reaction required for these types of coatings.
1.4 Precision statistics for this method have been determined for waterborne coatings in which the volatile organic compound weight percent is below 5 percent. The method has been used successfully with higher organic content waterborne coatings and with solventborne coatings (Note 2).
1.5 This method may also be used to measure the exempt volatile organic compound content (for example, acetone, methyl acetate, t-butyl acetate and p-chlorobenzotrifluoride) of waterborne and solvent-borne coatings. Check local regulations for a list of exempt compounds. The methodology is virtually identical to that used in Test Method D6133 which, as written, is specific for only exempt volatile compounds.
1.6 Volatile compounds that are present at the 0.005 weight percent level (50 ppm) or greater can be determined. A procedure for doing so is given in Section 9.
1.7 Volatile organic compound content of a coating can be calculated using data from Test Method D6886 but requires other data (see Appendix X2.)
Note 1: Data from this method will not always provide the volatile organic compound content of a paint film equivalent to EPA Method 24. Some compounds and some semi-volatile compounds may be considered volatile using the GC conditions specified but will not fully volatilize during the one hour at 110°C conditions of EPA Method 24. Some or all of these materials remain in the paint film and therefore are not considered volatile organic compounds according to EPA Method 24. In addition, some compounds may decompose at the high inlet temperature of the GC. However, note the EPA Method 24 has poor precision and accuracy at low levels of volatile organic compounds.
Note 2: This method measures volatile organic compound weight of air-dry coatings directly as opposed to other methods in Practice D3960 which measure the volatile organic compound weight percent indirectly. A direct measurement of the weight percent particularly in low volatile organic compound 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...
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6886 − 18
Standard Test Method for
Determination of the Weight Percent Individual Volatile
Organic Compounds in Waterborne 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.
during the one hour at 110°C conditions of EPA Method 24. Some or all
1. Scope
ofthesematerialsremaininthepaintfilmandthereforearenotconsidered
1.1 This test method is for the determination of the weight
volatile organic compounds according to EPA Method 24. In addition,
percent of individual volatile organic compounds in water- some compounds may decompose at the high inlet temperature of the GC.
However, note the EPAMethod 24 has poor precision and accuracy at low
borne air-dry coatings (Note 1).
levels of volatile organic compounds.
1.2 This method may be used for the analysis of coatings
NOTE 2—This method measures volatile organic compound weight of
containing silanes, siloxanes, and silane-siloxane blends. air-dry coatings directly as opposed to other methods in Practice D3960
whichmeasurethevolatileorganiccompoundweightpercentindirectly.A
1.3 This method is not suitable for the analysis of coatings
direct measurement of the weight percent particularly in low volatile
that cure by chemical reaction (this includes two-component
organic compound content waterborne coatings, generally gives better
precision. California Polytechnic State University carried out an extensive
coatings and coatings which cure when heated) because the
study for the California Air Resources Board comparing the precision of
dilution herein required will impede the chemical reaction
the direct method with the indirect method (CARB Standard Agreement
required for these types of coatings.
No. 04.329) Detailed results of this study may be found at http://
www.arb.ca.gov/coatings/arch/Final_Report_6_11_09.pdf. This study
1.4 Precision statistics for this method have been deter-
may be used to decide if the present method or other methods in Practice
mined for waterborne coatings in which the volatile organic
D3960 are preferred for a specific coating.
compound weight percent is below 5 percent. The method has
1.8 The values stated in SI units are to be regarded as
been used successfully with higher organic content waterborne
standard. No other units of measurement are included in this
coatings and with solventborne coatings (Note 2).
standard.
1.5 This method may also be used to measure the exempt
1.9 This standard does not purport to address all of the
volatile organic compound content (for example, acetone,
safety concerns, if any, associated with its use. It is the
methyl acetate, t-butyl acetate and p-chlorobenzotrifluoride) of
responsibility of the user of this standard to establish appro-
waterborne and solvent-borne coatings. Check local regula-
priate safety, health, and environmental practices and deter-
tions for a list of exempt compounds. The methodology is
mine the applicability of regulatory limitations prior to use.
virtually identical to that used inTest Method D6133 which, as
1.10 This international standard was developed in accor-
written, is specific for only exempt volatile compounds.
dance with internationally recognized principles on standard-
1.6 Volatile compounds that are present at the 0.005 weight
ization established in the Decision on Principles for the
percent level (50 ppm) or greater can be determined. A
Development of International Standards, Guides and Recom-
procedure for doing so is given in Section 9.
mendations issued by the World Trade Organization Technical
1.7 Volatile organic compound content of a coating can be
Barriers to Trade (TBT) Committee.
calculated using data from Test Method D6886 but requires
other data (see Appendix X2.)
2. Referenced Documents
NOTE 1—Data from this method will not always provide the volatile
2
2.1 ASTM Standards:
organic compound content of a paint film equivalent to EPA Method 24.
D1475 Test Method for Density of Liquid Coatings, Inks,
Some compounds and some semi-volatile compounds may be considered
volatile using the GC conditions specified but will not fully volatilize 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, andApplications and is the direct responsibility of
2
Subcommittee D01.21 on C
...
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.
´1
Designation: D6886 − 14 D6886 − 18
Standard Test Method for
Determination of the Weight Percent Individual Volatile
Organic Compounds in Waterborne 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
ε NOTE—Research report was added editorially in August 2014.
1. Scope
1.1 This test method is for the determination of the weight percent of individual volatile organic compounds in waterborne
air-dry coatings (Note 1).
1.2 This method may be used for the analysis of coatings containing silanes, siloxanes, and silane-siloxane blends.
1.3 This 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 the dilution herein required will impede the chemical reaction required for these
types of coatings.
1.4 This method can be used to determine the weight percent organic content of Precision statistics for this method have been
determined for waterborne coatings in which the volatile organic compound weight percent is below 5 percent. The method has
been used successfully with higher organic content waterborne coatings and with solventborne coatings (Note 2).
1.5 This method may also be used to measure the exempt volatile organic compound content (for example, acetone, methyl
acetate, t-butyl acetate and p-chlorobezotrifluoride)-chlorobenzotrifluoride) of waterborne and solvent-borne coatings. Check local
regulations for a list of exempt compounds. The methodology is virtually identical to that used in Test Method D6133 which, as
written, is specific for only exempt volatile compounds.
1.6 Volatile compounds that are present at the 0.005 weight percent level (50 ppm) or greater can be determined. A procedure
for doing so is given in Section 9.
1.7 Volatile organic compound content of a coating can be calculated using data from Test Method D6886 but requires other
data (see Appendix X2.)
NOTE 1—Data from this method will not always provide the volatile organic compound content of a paint film equivalent ofto EPA Method 24. Some
compounds and some semi-volatile compounds may be considered volatile using the GC conditions specified but will not fully volatilize during the one
hour at 110°C conditions of EPA Method 24. Some or all of these materials remain in the paint film and therefore are not considered volatile organic
compounds according to EPA Method 24. In addition, some compounds may decompose at the high inlet temperature of the GC. However, note the EPA
Method 24 has poor precision and accuracy at low levels of volatile organic compounds.
NOTE 2—This method measures volatile organic compound weight of air-dry coatings directly as opposed to other methods in Practice D3960 which
measure the volatile organic compound weight percent indirectly. A direct measurement of the weight percent particularly in low volatile organic
compound 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) Detailed
results of this study may be found at http://www.arb.ca.gov/coatings/arch/Final_Report_6_11_09.pdf. This study may be used to decide if the present
method or other methods in Practice D3960 are preferred for a specific coating.
1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.9 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.10 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1
This test method is under the jurisdiction
...
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