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ASTM D8339-20

(Test Method)

Standard Test Method for The Analysis of Flue Gas Desulfurization Solids by Macro Thermogravimetric Analysis

Standard Test Method for The Analysis of Flue Gas Desulfurization Solids by Macro Thermogravimetric Analysis

SIGNIFICANCE AND USE
5.1 Free Moisture, as determined by this instrumental test method, is used for calculating other analytical results to a dry basis using procedures in Practice D3180.  
5.2 Gypsum is the primary product used to assess the quality of the FGD-Solids for industrial purposes, especially construction wallboard. FGD solids are also used in mining applications, cement manufacturing, and for agricultural purposes.  
5.3 Calcium Sulfite Hemihydrate is used to assess the suitability of some FGD-Solids for industrial uses.
SCOPE
1.1 This instrumental test method covers the determination of free moisture, gypsum (CaSO4•2H2O), calcium sulfite hemihydrate (CaSO3•1/2H2O), calcium hydroxide (Ca(OH)2), calcium carbonate (CaCO3), and ash in flue gas desulfurization solids using a macro thermogravimetric analyzer.  
1.2 This instrumental test method is not applicable to thermogravimetric analyzers using microgram size samples.  
1.3 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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.

General Information

Status
Published
Publication Date
30-Jun-2020
ICS
13.040.01 - Air quality in general
Technical Committee
D05 - Coal and Coke
Drafting Committee
D05.29 - Major Elements in Ash and Trace Elements of Coal
Current Stage
Ref Project

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ASTM D8339-20 - Standard Test Method for The Analysis of Flue Gas Desulfurization Solids by Macro Thermogravimetric AnalysisASTM D8339-20 - Standard Test Method for The Analysis of Flue Gas Desulfurization Solids by Macro Thermogravimetric Analysis
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ASTM D8339-20 - Standard Test Method for The Analysis of Flue Gas Desulfurization Solids by Macro Thermogravimetric Analysis
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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: D8339 − 20
Standard Test Method for
The Analysis of Flue Gas Desulfurization Solids by Macro
1
Thermogravimetric Analysis
This standard is issued under the fixed designation D8339; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E691Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 This instrumental test method covers the determination
E1601Practice for Conducting an Interlaboratory Study to
of free moisture, gypsum (CaSO •2H O), calcium sulfite
4 2
Evaluate the Performance of an Analytical Method
hemihydrate (CaSO •½H2O), calcium hydroxide (Ca(OH) ),
3 2
calciumcarbonate(CaCO ),andashinfluegasdesulfurization
3 3. Terminology
solids using a macro thermogravimetric analyzer.
3.1 Definitions of Terms Specific to This Standard:
1.2 This instrumental test method is not applicable to
3.1.1 flue-gas desulfurization solids, n—generally are finely
thermogravimetric analyzers using microgram size samples.
divided materials containing various amounts of free moisture.
3.1.1.1 Discussion—The origin of the materials is dewa-
1.3 Units—The values stated in SI units are to be regarded
teredslurriesresultingfromtheabsorptionofsulfurdioxideby
as standard. The values given in parentheses after SI units are
slurries of lime or limestone fines in a flue gas desulfurization
provided for information only and are not considered standard.
process.
1.4 This standard does not purport to address all of the
3.1.2 free moisture, n—the moisture that evolves from
safety concerns, if any, associated with its use. It is the
flue-gas desulfurization solids, clay materials, hydrated lime,
responsibility of the user of this standard to establish appro-
and similar materials, when they are heated at temperatures
priate safety, health, and environmental practices and deter-
ranging from 45°C to 60°C until a constant mass is reached.
mine the applicability of regulatory limitations prior to use.
3.1.2.1 Discussion—Free moisture in these materials is not
1.5 This international standard was developed in accor-
thesameasthefreemoistureincoal,asdefinedinTerminology
dance with internationally recognized principles on standard-
D121.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3.2 For definitions of other terms used in this test method,
mendations issued by the World Trade Organization Technical
refer to Terminology D121.
Barriers to Trade (TBT) Committee.
4. Summary of Test Method
2. Referenced Documents
4.1 In thermogravimetric analysis, the mass of a sample in
2
a controlled atmosphere is recorded repeatedly as a function of
2.1 ASTM Standards:
temperature or time, or both. Macro thermogravimetric analy-
D121Terminology of Coal and Coke
sis (macro TGA) of flue gas desulfurization solids (FGD-
D3180Practice for Calculating Coal and Coke Analyses
Solids) uses a sample mass of approximately 1 g. In a typical
from As-Determined to Different Bases
analysis, the temperature is normally ramped from ambient to
D8146Guide for Evaluating Test Method Capability and
a specific temperature and held at that temperature for a
Fitness for Use
prescribed length of time, and the correspondent specimen
E177Practice for Use of the Terms Precision and Bias in
mass is repeatedly recorded by the instrument.
ASTM Test Methods
4.2 FGD-Solids components: free moisture, gypsum, cal-
cium sulfite hemihydrate, calcium hydroxide, calcium
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal carbonate, and ash are sequentially determined in a single
and Coke and is the direct responsibility of Subcommittee D05.29 on Major
multi-step heating program. The analysis of a particular com-
Elements in Ash and Trace Elements of Coal.
ponentiscompletewhenthespecimenreachesaconstantmass
Current edition approved July 1, 2020. Published September 2020. DOI:
or at the end of the step.
10.1520/D8339-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.3 Free Moisture is determined by measuring the mass
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
loss, caused by evaporating free water from the analysis
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specimen when heated to 50°C.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. Uni
...

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Standard Classification for Rating Outdoor-Indoor Sound Attenuation

SIGNIFICANCE AND USE
4.1 This classification provides a single number rating for transmission loss or noise reduction data that have been measured or calculated. This rating is based on the difference between the overall A-weighted sound level of the sound spectrum given in Table 1 and the overall A-weighted sound level of the spectrum that results from arithmetically subtracting the transmission loss or noise reduction data from this spectrum. The spectrum shape is an average of three spectra from transportation sources (aircraft takeoff, road traffic, and diesel locomotive). A study showed that this classification correlated well with the A-weighted and loudness reductions (based on ISO 532:1975 in effect at the time) calculated for each of the individual spectra used in developing the rating for the one-third-octave band range of 50 Hz to 5000 Hz. The calculated numeric value of the rating is based on the sound transmission loss or noise reduction values for a particular specimen and depends only on that data and the shape of the reference source spectrum used in the calculation. The values shown in Table 1 have an arbitrary reference level. Use single-number ratings with caution. Specimens having the same rating can result in different indoor spectra depending on the variation of their transmission loss with frequency. Also, if the actual spectrum of the outdoor sound is different from that assumed in Table 1, the overall A-weighted outdoor-indoor noise reduction can be different from the OINIC. The strong low-frequency content of the spectrum in Table 1 means that specimen achieving a high rating must have strong low-frequency transmission loss. Use of this classification with the spectrum in Table 1 in situations where the source does not have a spectrum similar to Table 1 could result in requirements for more low-frequency transmission loss than is necessary for the application. Examples where this can occur are stage 3 jet aircraft, high-speed freeways with sound dominated by ti...
SCOPE
1.1 The purpose of this classification is to provide a method to calculate single-number ratings that can be used for assessing the isolation from outdoor sound provided by a building or comparing building facade specimens including walls, doors, windows, and combinations thereof, including complete structures. These ratings are designed to correlate with subjective impressions of the ability of building elements to reduce the penetration of outdoor ground and air transportation noise that contains strong low-frequency sound.2 These ratings provide an evaluation and rank ordering of the performance of test specimens based on their effectiveness at controlling the sound of a specific outdoor sound spectrum called the reference source spectrum.  
1.2 In addition to the calculation method, this classification provides the definition of the outdoor-indoor transmission class which is not defined elsewhere within ASTM standards. Other standards such as Guide E966 define additional ratings based on the method of this classification, one of which is discussed in this classification.  
1.3 The rating does not necessarily relate to the perceived aesthetic quality of the transmitted sound. Different facade elements with similar ratings differ significantly in the proportion of low and high frequency sound that they transmit, and the spectra of sources can vary significantly. It is best to use specific sound transmission loss values, in conjunction with actual spectra of outdoor and indoor sound levels, for making final selections of facade elements.  
1.4 Excluded from the scope of this classification are applications involving noise spectra differing markedly from that shown in Table 1. Thus excluded, for example, would be certain industrial noises with high levels at frequencies below the 80 Hz one-third octave band, relative to levels at higher frequencies, and any source, including some transportation sources, that does not ...

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ASTM
ASTM D6327-10(2021)(Test Method)
Standard Test Method for Determination of Radon Decay Product Concentration and Working Level in Indoor Atmospheres by Active Sampling on a Filter

SIGNIFICANCE AND USE
5.1 The test method provides a relatively simple method for determination of the concentration of RDP without the need for specialty equipment built expressly for such purposes.  
5.2 Using this test method will afford investigators of radon in dwellings a technique by which the RDP can be determined. The use of the results of this test method are generally for diagnostic purposes and are not necessarily indicative of results that might be obtained by longer term measurement methods.  
5.3 An improved understanding of the frequency of elevated radon in buildings and the health effect of exposure has increased the importance of knowledge of actual exposures. The measurement of RDP, which are the direct cause of potential adverse health effects, should be conducted in a manner that is uniform and reproducible; it is to this end that this test method is addressed.
SCOPE
1.1 This test method provides instruction for using the grab sampling filter technique to determine accurate and reproducible measurements of indoor radon decay product (RDP) concentrations and of the working level (WL) value corresponding to those concentrations.  
1.2 Measurements made in accordance with this test method will produce RDP concentrations representative of closed-building conditions. Results of measurements made under closed-building conditions will have a smaller variability and are more reproducible than measurements obtained when building conditions are not controlled. This test method may be utilized under non-controlled conditions, but a greater degree of variability in the results will occur. Variability in the results may also be an indication of temporal variability present at the sampling site.  
1.3 This test method utilizes a short sampling period and the results are indicative of the conditions only at the place and time of sampling. The results obtained by this test method are not necessarily indicative of longer terms of sampling and should not be confused with such results. The averaging of multiple measurements over hours and days can, however, provide useful screening information. Individual measurements are generally obtained for diagnostic purposes.  
1.4 The range of the test method may be considered from 0.0005 WL to unlimited working levels, and from 40 Bq/m3 to unlimited for each individual radon decay product.  
1.5 This test method provides information on equipment, procedures, and quality control. It provides for measurements within typical residential or building environments and may not necessarily apply to specialized circumstances, for example, clean rooms.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 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. See Section 9 for additional precautions  
1.8 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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