ASTM D6886-14e1
(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 This method can be used to determine the weight percent organic content of waterborne coatings in which the volatile organic compound weight percent is below 5 percent. The method has been used successfully with higher 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) 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 of 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 me...
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´1
Designation: D6886 − 14
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.
Some compounds and some semi-volatile compounds may be considered
1. Scope
volatile using the GC conditions specified but will not fully volatilize
1.1 This test method is for the determination of the weight
during the one hour at 110°C conditions of EPA Method 24. Some or all
percent of individual volatile organic compounds in water- ofthesematerialsremaininthepaintfilmandthereforearenotconsidered
volatile organic compounds according to EPA Method 24. In addition,
borne air-dry coatings (Note 1).
some compounds may decompose at the high inlet temperature of the GC.
1.2 This method may be used for the analysis of coatings
However, note the EPAMethod 24 has poor precision and accuracy at low
containing silanes, siloxanes, and silane-siloxane blends. levels of volatile organic compounds.
NOTE 2—This method measures volatile organic compound weight of
1.3 This method is not suitable for the analysis of coatings
air-dry coatings directly as opposed to other methods in Practice D3960
that cure by chemical reaction (this includes two-component
whichmeasurethevolatileorganiccompoundweightpercentindirectly.A
direct measurement of the weight percent particularly in low volatile
coatings and coatings which cure when heated) because the
organic compound content waterborne coatings, generally gives better
dilution herein required will impede the chemical reaction
precision. California Polytechnic State University carried out an extensive
required for these types of coatings.
study for the California Air Resources Board comparing the precision of
the direct method with the indirect method (CARB Standard Agreement
1.4 This method can be used to determine the weight
No. 04.329) Detailed results of this study may be found at http://
percent organic content of waterborne coatings in which the
www.arb.ca.gov/coatings/arch/Final_Report_6_11_09.pdf. This study
volatile organic compound weight percent is below 5 percent.
may be used to decide if the present method or other methods in Practice
The method has been used successfully with higher content
D3960 are preferred for a specific coating.
waterborne coatings and with solventborne coatings (Note 2).
1.8 The values stated in SI units are to be regarded as
1.5 This method may also be used to measure the exempt
standard. No other units of measurement are included in this
volatile organic compound content (for example, acetone,
standard.
methyl acetate, t-butyl acetate and p-chlorobezotrifluoride) of
1.9 This standard does not purport to address all of the
waterborne and solvent-borne coatings. Check local regula-
safety concerns, if any, associated with its use. It is the
tions for a list of exempt compounds. The methodology is
responsibility of the user of this standard to establish appro-
virtually identical to that used inTest Method D6133 which, as
priate safety and health practices and determine the applica-
written, is specific for only exempt volatile compounds.
bility of regulatory limitations prior to use.
1.6 Volatile compounds that are present at the 0.005 weight
percent level (50 ppm) or greater can be determined. A 2. Referenced Documents
2
procedure for doing so is given in Section 9.
2.1 ASTM Standards:
1.7 Volatile organic compound content of a coating can be D1475 Test Method For Density of Liquid Coatings, Inks,
and Related Products
calculated using data from Test Method D6886 but requires
other data (see Appendix X2.) D2369 Test Method for Volatile Content of Coatings
NOTE 1—Data from this method will not always provide the volatile D3792 Test Method forWater Content of Coatings by Direct
organic compound content of a paint film equivalent of EPA Method 24.
Injection Into a Gas Chromatograph
D3925 Practice for Sampling Liquid Paints and Related
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 Chemical Analysis of Paints and Paint Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 15, 2014. Published July 2014. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2003. Last
...
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 − 14
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 waterborne coatings in which the volatile
organic compound weight percent is below 5 percent. The method has been used successfully with higher 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) 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 of 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 and health practices and determine the applicability of regulatory
limitations prior to use.
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 June 15, 2014. Published July 2014. Originally approved in 2003. Last previous edition approved in 2012 as D6886 – 12. DOI:
10.1520/D6886-14.10.1520/D6886-14E01.
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