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ASTM D7938-15

(Practice)

Standard Practice for Sampling of C-14 in Gaseous Effluents

Standard Practice for Sampling of C-14 in Gaseous Effluents

SIGNIFICANCE AND USE
5.1 This practice was developed4 for the purpose of sampling gaseous effluent streams from a facility that releases 14C in either organic or inorganic forms.  
5.1.1 For many years 14C was not included in gaseous and liquid effluent measurements used for effluent dose calculations at nuclear power facilities. U.S. NRC Regulatory Guide 1.21 now requires 14C analysis (either estimated by calculation or actual measurement) and its impact on annual dose in the environs of nuclear plants be evaluated. Based on the revisions to the Regulatory Guide and NRC guidance to licensees, 14C activity will need to be reported and evaluated for dose contribution based on the activity concentration and chemical form of the 14C in the release.  
5.2 While 14C releases may be estimated, the measurement of actual 14C emissions provides a more reliable and accurate means of reporting emissions. The chemical form of 14C that yields the greatest dose significance due to uptake by living organisms is the inorganic form. Thus the distribution of 14C chemical forms in plant effluents is important in assessing the overall dose impact.  
5.3 Use of this sampling practice has identified that for pressurized water reactors (PWRs) >90 % of all 14C released may be in the organic form during operation, and for boiling water reactors (BWRs) 14C released may be in the organic form during operation.  
5.3.1 Some power plants have catalytic hydrogen recombiners in the waste gas processing system. These can also oxidize organic carbon to CO2, increasing the percentage of 14CO2 in the effluent release.  
5.3.2 During refueling outages, oxidizing conditions exist in the reactor cavity due to air saturation and radiolytic reactions by the nuclear fuel. The combination of these two effects has been shown to increase the 14CO2 content of the sampled atmosphere inside the containment building.  
5.4 The sampling methodology described in this practice is not capable of discriminating between different org...
SCOPE
1.1 The intended use of this practice is for sampling of gasses containing 14C in inorganic, organic or particulate forms. This sampling practice captures the 14C in a media that can be submitted to a laboratory for analysis, typically by liquid scintillation counting (LSC)  
1.2 This practice does not include the needed steps for the liberation of 14C from the media on which it was adsorbed or those for the preparation for LSC sample preparation in the laboratory prior to liquid scintillation analysis. This practice does not include the methodology used to analyze the prepared samples by LSC.  
1.3 The overall 14C analytical detection capability is impacted by a number of factors including the volume sampled, the method used to desorb the 14C from the media, and the analytical method used the measure 14C from the media. This practice only directly addresses the volume of the gas stream from which any present 14C would be adsorbed.  
1.4 The values stated in pCi units are to be regarded as standard given the reporting requirements of the U.S. NRC Regulatory Guide 1.21. The Bq values given in parenthesis are mathematical conversions to SI units that are provided for information only and are not considered standard. Other values stated in SI units are to be regarded as standard.  
1.5 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

Status
Historical
Publication Date
14-Dec-2015
ICS
13.040.40 - Stationary source emissions
Technical Committee
D19 - Water
Drafting Committee
D19.04 - Methods of Radiochemical Analysis
Current Stage
Ref Project

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ASTM D7938-15 - Standard Practice for Sampling of C-14 in Gaseous EffluentsASTM D7938-15 - Standard Practice for Sampling of C-14 in Gaseous Effluents
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ASTM D7938-15 - Standard Practice for Sampling of C-14 in Gaseous Effluents
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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: D7938 − 15
Standard Practice for
1
Sampling of C-14 in Gaseous Effluents
This standard is issued under the fixed designation D7938; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 The intended use of this practice is for sampling of
14
D1129 Terminology Relating to Water
gasses containing C in inorganic, organic or particulate
14
D7282 Practice for Set-up, Calibration, and Quality Control
forms. This sampling practice captures the C in a media that
of Instruments Used for Radioactivity Measurements
can be submitted to a laboratory for analysis, typically by
D7902 Terminology for Radiochemical Analyses
liquid scintillation counting (LSC)
3
2.2 U.S. NRC Publications:
1.2 This practice does not include the needed steps for the
U.S. NRC Regulatory Guide 1.21 “Measuring, Evaluating,
14
liberation of C from the media on which it was adsorbed or
and Reporting Radioactive Material in Liquid and Gas-
those for the preparation for LSC sample preparation in the
eous Effluents and Solid Waste,” revision 2, June 2009
laboratory prior to liquid scintillation analysis. This practice
3. Terminology
does not include the methodology used to analyze the prepared
samples by LSC.
3.1 Definitions:
3.1.1 For definitions of terms used in this standard, refer to
14
1.3 The overall C analytical detection capability is im-
Terminologies D1129 and D7902.
pacted by a number of factors including the volume sampled,
3.2 Definitions of Terms Specific to This Standard:
14
the method used to desorb the C from the media, and the
14 14
3.2.1 organic C, n—any gaseous, chemical C form
14
analytical method used the measure C from the media. This
(including CO) that is not particulate and not CO .
2
practice only directly addresses the volume of the gas stream
3.2.1.1 Discussion—Although no specific organic form is
14
from which any present C would be adsorbed.
determined, the major contributors are likely to be CH,C H ,
4 2 6
1.4 The values stated in pCi units are to be regarded as C H , CO, and C H .
2 4 2 2
14 14
standard given the reporting requirements of the U.S. NRC
3.2.2 inorganic C, n—the gaseous, chemical form of C
Regulatory Guide 1.21. The Bq values given in parenthesis are
as CO .
2
mathematical conversions to SI units that are provided for
3.2.2.1 Discussion—These chemical form categorizations
information only and are not considered standard. Other values
are based on U.S. NRC Regulatory Guide 1.21.
stated in SI units are to be regarded as standard.
4. Summary of Practice
1.5 This standard does not purport to address all of the
4.1 A sample of a flowing gaseous stream is extracted at a
safety concerns, if any, associated with its use. It is the
flow rate of 30 to 3000 mL/min. The sample is filtered, and
responsibility of the user of this standard to establish appro-
split into two parallel flow paths. One flow path is passed
priate safety, health, and environmental practices and deter-
through a furnace to convert all carbon to CO . This will yield
2
mine the applicability of regulatory limitations prior to use.
14
a total C content of the sample. The other flow path collects
1.6 This international standard was developed in accor-
only the CO fraction of the gaseous stream. This yields the
2
dance with internationally recognized principles on standard-
14
inorganic C content of the gaseous stream. The calculated
ization established in the Decision on Principles for the
difference between the measured total and inorganic carbon
Development of International Standards, Guides and Recom-
content is the organic content (U.S. NRC Regulatory Guide
mendations issued by the World Trade Organization Technical
14
1.21). The concentration of C in the particulate matter may
Barriers to Trade (TBT) Committee.
also be determined.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This practice is under the jurisdiction of ASTM Committee D19 on Water and contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
is the direct responsibility of Subcommittee D19.04 on Methods of Radiochemical Standards volume information, refer to the standard’s Document Summary page on
Analysis. the ASTM website.
3
Current edition approved Dec. 15, 2015. Published February 2016. DOI: Available from U.S. Nuclear Regulatory Commission, Washington, DC 20555-
10.1520/D7938-15. 0001, http://www.nrc.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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ASTM D7938-21(Practice)
Standard Practice for Sampling of C-14 in Gaseous Effluents

SIGNIFICANCE AND USE
5.1 This practice was developed4 for the purpose of sampling gaseous effluent streams from a facility that releases 14C in either organic or inorganic forms.  
5.1.1 For many years 14C was not included in gaseous and liquid effluent measurements used for effluent dose calculations at nuclear power facilities. U.S. NRC Regulatory Guide 1.21 now requires 14C analysis (either estimated by calculation or actual measurement) and its impact on annual dose in the environs of nuclear plants be evaluated. Based on the revisions to the Regulatory Guide and NRC guidance to licensees, 14C activity will need to be reported and evaluated for dose contribution based on the activity concentration and chemical form of the 14C in the release.  
5.2 While 14C releases may be estimated, the measurement of actual 14C emissions provides a more reliable and accurate means of reporting emissions. The chemical form of 14C that yields the greatest dose significance due to uptake by living organisms is the inorganic form. Thus the distribution of 14C chemical forms in plant effluents is important in assessing the overall dose impact.  
5.3 Use of this sampling practice has identified that for pressurized water reactors (PWRs) >90 % of all 14C released may be in the organic form during operation, and for boiling water reactors (BWRs) 14C released may be in the organic form during operation.  
5.3.1 Some power plants have catalytic hydrogen recombiners in the waste gas processing system. These can also oxidize organic carbon to CO2, increasing the percentage of 14CO2 in the effluent release.  
5.3.2 During refueling outages, oxidizing conditions exist in the reactor cavity due to air saturation and radiolytic reactions by the nuclear fuel. The combination of these two effects has been shown to increase the 14CO2 content of the sampled atmosphere inside the containment building.  
5.4 The sampling methodology described in this practice is not capable of discriminating between different org...
SCOPE
1.1 The intended use of this practice is for sampling of gasses containing 14C in inorganic, organic or particulate forms. This sampling practice captures the 14C in a media that can be submitted to a laboratory for analysis, typically by liquid scintillation counting (LSC)  
1.2 This practice does not include the needed steps for the liberation of 14C from the media on which it was adsorbed or those for the preparation for LSC sample preparation in the laboratory prior to liquid scintillation analysis. This practice does not include the methodology used to analyze the prepared samples by LSC.  
1.3 The overall 14C analytical detection capability is impacted by a number of factors including the volume sampled, the method used to desorb the 14C from the media, and the analytical method used the measure 14C from the media. This practice only directly addresses the volume of the gas stream from which any present 14C would be adsorbed.  
1.4 The values stated in pCi units are to be regarded as standard given the reporting requirements of the U.S. NRC Regulatory Guide 1.21. The Bq values given in parenthesis are mathematical conversions to SI units that are provided for information only and are not considered standard. Other values stated in SI units are to be regarded as standard.  
1.5 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 applicability of regulatory limitations prior to use.  
1.6 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.

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ASTM D5438-23(Practice)
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5.1 This practice may be used to collect dust from carpeted or bare floor surfaces for gravimetric or chemical analysis. The collected sample is substantially unmodified by the sampling procedure.  
5.2 This practice provides for a reproducible dust removal rate from level loop and plush carpets, as well as bare floors. It has the ability to achieve relatively constant removal efficiency at different loadings of floor dust.  
5.3 This practice also provides for the efficient capture of semivolatile organic chemicals associated with the dust. The test system can be fitted with special canisters downstream of the cyclone for the capture of specific semivolatile organic chemicals that may volatilize from the dust particles during collection.  
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5.6 This practice uses a removable, cleanable dropout jar that facilitates per-event sampling. Other per-event vacuum attachments are commercially available. These are not directly comparable with composite sampling done using whole vacuum cleaner bags.
SCOPE
1.1 This practice covers a procedure for the collection of a sample of dust from carpets and bare floors that can be analyzed for inorganic metals such as lead and organic compounds such as pesticides and other semi-volatile organic compounds (SVOCs).  
1.2 This practice is applicable to a variety of carpeted and bare floor surfaces. It has been tested for level loop and plush pile carpets and bare wood floors, specifically. This practice is not applicable to elevated, non-floor surfaces.  
1.3 This practice is not intended for the collection and evaluation of dust for the presence of asbestos fibers.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This practice describes use of a sampling device, the High-Volume Small Surface Sampler (HVS3). Other event-based sampling devices that use commercially available vacuum attachments are not in scope. Composite sampling using whole vacuum cleaner bags is not in scope. Other approaches for floor or non-floor surface sampling (Practices D6966, D6661, D7144) are not within the scope.  
1.6 This practice only applies to the HVS3. Other dust sampling methods may or may not be directly comparable. Method evaluation for other dust sampling approaches is encouraged. This could be done by comparison with methods outlined in this standard practice for HVS3 or through independent evaluation using field spikes and certified reference materials.  
1.7 This practice provides information on dust loading, chemical dust concentration, and chemical dust loading. Information on the type of floor, the floor surface area sampled, and amount of dust collected is required (see Fig. 2). Cleaning the vacuum attachments in between sampling events is also required (see Section 13).  
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3.1 The purpose of this terminology standard is to help users understand and apply the large number of specialized terms used in connection with the management of lead hazards by providing a single, comprehensive, and consistent terminology.  
3.1.1 This terminology standard includes some terms that may be encountered, but whose use is discouraged. They are included for clarification and in order to provide the user with preferred existing alternate terms.  
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1.1 This terminology standard covers definitions for the following:  
1.1.1 Terms that are commonly used in the field of management of lead hazards in facilities;  
1.1.2 Architectural terms, particularly those associated with older wood-frame buildings; and,  
1.1.3 Specialized terms that may be encountered by users in reports and notices that are generated during lead hazard management activities.  
1.2 This terminology standard is supplementary to Terminology E631.  
1.3 Definitions adopted or derived from other documents include the following:  
1.3.1 Some of the definitions in this terminology standard are adopted as exact copies from other sources. The source is briefly identified at the right margin following the definition and fully identified in Section 2.  
1.3.2 Some of the definitions in this terminology standard are adapted from other sources. Changes in these definitions were made only to clarify the meaning, to incorporate related terms that also are defined in this terminology standard, or to ensure that the revised definition is consistent with those for related terms. The source is briefly identified with the words “adapted” at the right margin following the definition, and is fully identified in Section 2.  
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ASTM D7938-21(Practice)
Standard Practice for Sampling of C-14 in Gaseous Effluents

SIGNIFICANCE AND USE
5.1 This practice was developed4 for the purpose of sampling gaseous effluent streams from a facility that releases 14C in either organic or inorganic forms.  
5.1.1 For many years 14C was not included in gaseous and liquid effluent measurements used for effluent dose calculations at nuclear power facilities. U.S. NRC Regulatory Guide 1.21 now requires 14C analysis (either estimated by calculation or actual measurement) and its impact on annual dose in the environs of nuclear plants be evaluated. Based on the revisions to the Regulatory Guide and NRC guidance to licensees, 14C activity will need to be reported and evaluated for dose contribution based on the activity concentration and chemical form of the 14C in the release.  
5.2 While 14C releases may be estimated, the measurement of actual 14C emissions provides a more reliable and accurate means of reporting emissions. The chemical form of 14C that yields the greatest dose significance due to uptake by living organisms is the inorganic form. Thus the distribution of 14C chemical forms in plant effluents is important in assessing the overall dose impact.  
5.3 Use of this sampling practice has identified that for pressurized water reactors (PWRs) >90 % of all 14C released may be in the organic form during operation, and for boiling water reactors (BWRs) 14C released may be in the organic form during operation.  
5.3.1 Some power plants have catalytic hydrogen recombiners in the waste gas processing system. These can also oxidize organic carbon to CO2, increasing the percentage of 14CO2 in the effluent release.  
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1.1 The intended use of this practice is for sampling of gasses containing 14C in inorganic, organic or particulate forms. This sampling practice captures the 14C in a media that can be submitted to a laboratory for analysis, typically by liquid scintillation counting (LSC)  
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1.3 The overall 14C analytical detection capability is impacted by a number of factors including the volume sampled, the method used to desorb the 14C from the media, and the analytical method used the measure 14C from the media. This practice only directly addresses the volume of the gas stream from which any present 14C would be adsorbed.  
1.4 The values stated in pCi units are to be regarded as standard given the reporting requirements of the U.S. NRC Regulatory Guide 1.21. The Bq values given in parenthesis are mathematical conversions to SI units that are provided for information only and are not considered standard. Other values stated in SI units are to be regarded as standard.  
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4.1 This practice provides the basic criteria to be used by accreditation bodies and others in evaluating the qualifications of laboratories engaged in the testing of lead in paint, or settled dust, or airborne particulates, or soil, or combination thereof, taken from and around buildings and related structures. The criteria in this practice shall be supplemented by additional specific criteria and requirements, when appropriate; for example, when necessary to be in accordance with federal, state, or local government regulations.  
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SCOPE
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1.4 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 applicability of regulatory limitations prior to use.  
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5.1.1 These measurements, when approved by federal and state agencies, are often required for the purpose of determining compliance with regulations and statutes.  
5.1.2 The measurements made before and after control devices are often necessary as a means of demonstrating conformance with contractual performance specifications.  
5.2 The collected residue obtained with these test methods is also important in characterizing stack emissions. However, the utility of these data is limited unless a chemical analysis of the collected residue is performed.
SCOPE
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1.5 These test methods are also applicable for determining compliance with regulations and statutes limiting particulate matter existing in stack gases when approved by federal or state agencies.  
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ASTM D5485-21(Test Method)
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5.1 The metal loss from corrosion is directly related to the increase in electrical resistance of the target due to the decrease in conductive cross-sectional area.  
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SCOPE
1.1 This fire-test-response standard measures the corrosive effect by loss of metal from the combustion products of materials, components, or products.  
1.2 This test method provides corrosion results of product and material specimens limited to a maximum size of 100 by 100 mm in area and 50 mm thick.  
1.3 Additional information regarding the targets, the test conditions, and test limitations is provided in Annex A1.  
1.4 The results of this test method have not been investigated with respect to correlation to actual fires.  
1.5 An ISO standard exists, as developed by ISO TC 61 (Plastics), subcommittee 4 (on burning behavior), which is technically very similar to this test method and is designated ISO 11907-4.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. (See IEEE/ASTM SI10.)  
1.7 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.  
1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.  
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.

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  • Standard
    14 pages
    English language
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ASTM
ASTM E2558-13(2021)(Test Method)
Standard Test Method for Determining Particulate Matter Emissions from Fires in Wood-Burning Fireplaces

SIGNIFICANCE AND USE
5.1 This test method is used for determining emission factors and emission rates for low mass wood-burning fireplaces.  
5.1.1 The emission factor is useful for determining emission performance during product development.  
5.1.2 The emission factor is useful for the air quality regulatory community for determining compliance with emission performance limits.  
5.1.3 The emission rate may be useful for the air quality regulatory community for determining impacts on air quality from fireplaces, but must be used with caution as use patterns must be factored into any prediction of atmospheric particulate matter impacts from fireplaces based on results from this method.  
5.2 The reporting units are grams of particulate per kilogram of dry fuel and grams of particulate per hour.  
5.2.1 Appropriate reporting units for comparing emissions from non-heating appliances: grams per kilogram.  
5.2.2 Appropriate reporting units for predicting atmospheric emission impacts only if hours of fireplace use are factored in: grams per hour.
SCOPE
1.1 This test method covers the fueling and operating protocol for determining particulate matter emissions from wood fires in low mass wood-burning fireplaces. The fueling and operating protocol for determining particular matter emissions from masonry or other high mass fireplaces is covered in Annex A1 of this test method.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 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 applicability of regulatory limitations prior to use.  
1.4 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.

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ASTM
ASTM F2326-04(2021)(Test Method)
Standard Test Method for Collection and Analysis of Visible Emissions from Candles as They Burn

SIGNIFICANCE AND USE
5.1 The intent of this test method is to aid the candle manufacturer to optimize candle formulations in the reduction of visible smoke emissions.  
5.2 This test method is intended to provide candle manufacturers a standard procedure to use during development of candle designs and formulations to compare relative smoke/burn behavior. For the development of this method, a protocol was established for trimming the wick on specially prepared test candles to 6 mm to 7 mm (1/4 in.) prior to each burn cycle. It is recommended that the manufacturer determine a standardized protocol, that is, either not trimming the wick or trimming the wick to an appropriate length in order for direct comparison of results.  
5.3 A relative ranking of candle formulations can be established with the use of a histogram of the data and control charts.  
5.4 This test method is not intended to set forth pass/fail criteria for visible smoke emissions from candles, as such, this method sets no standard level for visible smoke emissions.
SCOPE
1.1 This test method covers the collection and analysis of visible emissions from indoor use candles as they burn.  
1.2 The test is to be used to compare relative smoke/burn behavior during development of candle designs and formulations.  
1.3 This test method may not be suitable for multiple wick candles; tapers and candles intended to be burned while floating on water commonly known as “floaters.”  
1.4 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 applicability of regulatory limitations prior to use.  
1.5 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.

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    5 pages
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