ASTM D7706-11
(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
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.
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.
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.
This practice can also be used to monitor the quality of raw materials for manufacturing processes.
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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7706 − 11
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
products for their vapor-phase emissions of volatile organic
1.8 This standard does not purport to address all of the
compounds (VOCs) including formaldehyde and other carbo-
safety concerns, if any, associated with its use. It is the
nyl compounds. It is intended to complement, not replace
responsibility of the user of this standard to establish appro-
reference methods for measuring chemical emissions for
priate safety and health practices and determine the applica-
example, small-scale chamber tests (Guide D5116) and emis-
bility of regulatory limitations prior to use.
sion cell tests (Practice D7143).
1.2 This practice is suitable for use in and outside of
2. Referenced Documents
laboratories, in manufacturing sites and in field locations with
2
2.1 ASTM Standards:
access to electrical power.
D1356 Terminology Relating to Sampling and Analysis of
1.3 Compatible material/product types that may be tested in
Atmospheres
the micro-scale chamber apparatus include rigid materials,
D1914 PracticeforConversionUnitsandFactorsRelatingto
dried or cured paints and coatings, compressible products, and
Sampling and Analysis of Atmospheres
small, irregularly-shaped components such as polymer beads.
D5116 Guide for Small-Scale Environmental Chamber De-
1.4 Thispracticedescribesteststocorrelateemissionresults
terminations of Organic Emissions from Indoor Materials/
obtained from the micro-scale chamber with results obtained
Products
from VOC emission reference methods (for example, Guide
D5197 Test Method for Determination of Formaldehyde and
D5116,Test Method D6007, Practice D7143, and ISO 16000-9
OtherCarbonylCompoundsinAir(ActiveSamplerMeth-
and ISO 16000-10).
odology)
D6007 TestMethodforDeterminingFormaldehydeConcen-
1.5 The micro-scale chamber apparatus operates at moder-
ately elevated temperatures, 30°C to 60°C, to eliminate the trations in Air from Wood Products Using a Small-Scale
needforcooling,toreducetesttimes,boostemissionrates,and Chamber
enhance analytical signals for routine emission screening, and
D6196 Practice for Selection of Sorbents, Sampling, and
tofacilitatescreeningofsemi-volatileVOC(SVOC)emissions
Thermal Desorption Analysis Procedures for Volatile Or-
such as emissions of some phthalate esters and other plasticiz-
ganic Compounds in Air
ers.
D5337 Practice for Flow RateAdjustment of Personal Sam-
pling Pumps
1.6 Gas sample collection and chemical analysis are depen-
D7143 Practice for Emission Cells for the Determination of
dent upon the nature of the VOCs targeted and are beyond the
Volatile Organic Emissions from Indoor Materials/
scope of this practice. However, the procedures described in
Products
Test Method D7339, Practice D6196 and ISO 16000-6 for
analysis ofVOCs and inTest Method D5197 and ISO 16000-3 D7339 Test Method for Determination of Volatile Organic
for analysis of formaldehyde and other carbonyl compounds Compounds Emitted from Carpet using a Specific Sorbent
are applicable to this practice. Tube and Thermal Desorption / Gas Chromatography
1 2
This practice is under the jurisdiction ofASTM Committee D22 on Air Quality For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and is the direct responsibility of Subcommittee D22.05 on Indoor Air. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved March 1, 2011. Published March 2011. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
D7706-11. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7706 − 11
3
2.2 ISO Standards: 4.3 After the test specimen has equilibrated in the micro-
ISO 16000-3 Determination of formaldehyde and other car- scale chamber (typically for 20-40 minutes), a sampling device
bonyl compounds – Active sampling method is connected to the outlet for collection of vapor-phase com-
ISO 16000-6 Determination of volatile organic compounds pounds exiting the chamber.
in indoor and test
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.