ASTM D7706-17(2023)
(Practice)Standard Practice for Rapid Screening of VOC Emissions from Products Using Micro-Scale Chambers
Standard Practice for Rapid Screening of VOC Emissions from Products Using Micro-Scale Chambers
SIGNIFICANCE AND USE
6.1 Manufacturers increasingly are being asked or required to demonstrate that vapor-phase emissions of chemicals of concern from their products under normal use conditions comply with various voluntary or regulatory acceptance criteria. This process typically requires manufacturers to have their products periodically tested for VOC emissions by independent laboratories using designated reference test methods (for example, Test Method D6007, ISO 16000-9, and ISO 16000-10). To ensure continuing compliance, manufacturers may opt to, or be required to, implement screening tests at the production level.
6.2 Reference methods for testing chemical emissions from products are rigorous and typically are too time-consuming and impractical for routine emission screening in a production environment.
6.3 Micro-scale chambers are unique in that their small size and operation at moderately elevated temperatures facilitate rapid equilibration and shortened testing times. Provided a sufficiently repeatable correlation with reference test results can be demonstrated, appropriate control levels can be established and micro-scale chamber data can be used to monitor product manufacturing for likely compliance with reference acceptance criteria. Enhanced turnaround time for results allows for more timely adjustment of parameters to maintain consistent production with respect to vapor-phase chemical emissions.
6.4 This practice can also be used to monitor the quality of raw materials for manufacturing processes.
6.5 The use of elevated temperatures additionally facilitates screening tests for emissions of semi-volatile VOCs (SVOCs) such as some phthalate esters and other plasticizers.
SCOPE
1.1 This practice describes a micro-scale chamber apparatus and associated procedures for rapidly screening materials and products for their vapor-phase emissions of volatile organic compounds (VOCs) including formaldehyde and other carbonyl compounds. It is intended to complement, not replace reference methods for measuring chemical emissions for example, small-scale chamber tests (Guide D5116) and emission cell tests (Practice D7143).
1.2 This practice is suitable for use in and outside of laboratories, in manufacturing sites and in field locations with access to electrical power.
1.3 Compatible material/product types that may be tested in the micro-scale chamber apparatus include rigid materials, dried or cured paints and coatings, compressible products, and small, irregularly-shaped components such as polymer beads.
1.4 This practice describes tests to correlate emission results obtained from the micro-scale chamber with results obtained from VOC emission reference methods (for example, Guide D5116, Test Method D6007, Practice D7143, and ISO 16000-9 and ISO 16000-10).
1.5 The micro-scale chamber apparatus operates at moderately elevated temperatures, 30 °C to 60 °C, to eliminate the need for cooling, to reduce test times, boost emission rates, and enhance analytical signals for routine emission screening, and to facilitate screening of semi-volatile VOC (SVOC) emissions such as emissions of some phthalate esters and other plasticizers.
1.6 Gas sample collection and chemical analysis are dependent upon the nature of the VOCs targeted and are beyond the scope of this practice. However, the procedures described in Test Method D7339, Practice D6196 and ISO 16000-6 for analysis of VOCs and in Test Method D5197 and ISO 16000-3 for analysis of formaldehyde and other carbonyl compounds are applicable to this practice.
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.8 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, health, and environmental practices and determine the applicabilit...
General Information
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Standards Content (Sample)
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: D7706 − 17 (Reapproved 2023)
Standard Practice for
Rapid Screening of VOC Emissions from Products Using
1
Micro-Scale Chambers
This standard is issued under the fixed designation D7706; 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 1.7 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
1.1 This practice describes a micro-scale chamber apparatus
standard.
and associated procedures for rapidly screening materials and
1.8 This standard does not purport to address all of the
products for their vapor-phase emissions of volatile organic
safety concerns, if any, associated with its use. It is the
compounds (VOCs) including formaldehyde and other carbo-
responsibility of the user of this standard to establish appro-
nyl compounds. It is intended to complement, not replace
priate safety, health, and environmental practices and deter-
reference methods for measuring chemical emissions for
mine the applicability of regulatory limitations prior to use.
example, small-scale chamber tests (Guide D5116) and emis-
1.9 This international standard was developed in accor-
sion cell tests (Practice D7143).
dance with internationally recognized principles on standard-
1.2 This practice is suitable for use in and outside of
ization established in the Decision on Principles for the
laboratories, in manufacturing sites and in field locations with
Development of International Standards, Guides and Recom-
access to electrical power.
mendations issued by the World Trade Organization Technical
1.3 Compatible material/product types that may be tested in
Barriers to Trade (TBT) Committee.
the micro-scale chamber apparatus include rigid materials,
2. Referenced Documents
dried or cured paints and coatings, compressible products, and
2
small, irregularly-shaped components such as polymer beads.
2.1 ASTM Standards:
D1356 Terminology Relating to Sampling and Analysis of
1.4 This practice describes tests to correlate emission results
Atmospheres
obtained from the micro-scale chamber with results obtained
D1914 Practice for Conversion Units and Factors Relating to
from VOC emission reference methods (for example, Guide
Sampling and Analysis of Atmospheres
D5116, Test Method D6007, Practice D7143, and ISO 16000-9
D5116 Guide for Small-Scale Environmental Chamber De-
and ISO 16000-10).
terminations of Organic Emissions from Indoor Materials/
1.5 The micro-scale chamber apparatus operates at moder-
Products
ately elevated temperatures, 30 °C to 60 °C, to eliminate the
D5197 Test Method for Determination of Formaldehyde and
need for cooling, to reduce test times, boost emission rates, and
Other Carbonyl Compounds in Air (Active Sampler Meth-
enhance analytical signals for routine emission screening, and
odology)
to facilitate screening of semi-volatile VOC (SVOC) emissions
D5337 Practice for Setting and Verifying the Flow Rate of
such as emissions of some phthalate esters and other plasticiz-
Personal Sampling Pumps
ers.
D6007 Test Method for Determining Formaldehyde Concen-
1.6 Gas sample collection and chemical analysis are depen-
trations in Air from Wood Products Using a Small-Scale
dent upon the nature of the VOCs targeted and are beyond the
Chamber
scope of this practice. However, the procedures described in
D6196 Practice for Choosing Sorbents, Sampling Param-
Test Method D7339, Practice D6196 and ISO 16000-6 for
eters and Thermal Desorption Analytical Conditions for
analysis of VOCs and in Test Method D5197 and ISO 16000-3
Monitoring Volatile Organic Chemicals in Air
for analysis of formaldehyde and other carbonyl compounds
D7143 Practice for Emission Cells for the Determination of
are applicable to this practice.
Volatile Organic Emissions from Indoor Materials/
Products
1
This practice is under the jurisdiction of ASTM Committee D22 on Air Quality
2
and is the direct responsibility of Subcommittee D22.05 on Indoor Air. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2023. Published October 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2011. Last previous edition approved in 2017 as D7706 – 17. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7706-17R23. the ASTM website.
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