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ASTM D5835-20
Standard Practice for Sampling Stationary Source Emissions for the Automated Determination of Gas Concentrations
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STANDARD published on 1.12.2020
The information about the standard:
Designation standards: ASTM D5835-20
Publication date standards: 1.12.2020
SKU: NS-1013134
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM D5835-20 :
This practice presents the procedures and equipment that will permit, within certain limits, representative sampling of stationary source emissions for the automated determination of gas concentrations of effluent gas streams. This application is limited to the determination of oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), sulfur dioxide (SO2), nitric oxide (NO), nitrogen dioxide (NO2) and total oxides of nitrogen (NOx). Although velocity measurements are required to determine the mass flow rates of gases, this is, however, not included in this practice. This practice describes representative sampling of gases in a duct, both by extractive and non-extractive methods. In extractive sampling, gases are conditioned to remove aerosols, particulate matter, and other interfering substances before being conveyed to the instruments. In non-extractive sampling, the measurements are made in-situ; therefore, no sample conditioning except filtering is required.
Keywords:
automated stack sampling, dilution extraction, in-situ sampling, stack emissions, stack sampling,, ICS Number Code 13.040.40 (Stationary source emissions)
Additional information
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1.1?This practice1.2?Velocity measurements are required to determine the mass flow rates of gases. This is not included in this practice. 1.3?There are some combustion processes and conditions that may limit the applicability of this practice. Where such conditions exist, caution and competent technical judgment are required, especially when dealing with any of the following: 1.3.1?Corrosive or highly reactive components, 1.3.2?High vacuum, high pressure, or high temperature gas streams, 1.3.3?Wet flue gases, 1.3.4?Fluctuations in velocity, temperature, or concentration due to uncontrollable variation in the process, 1.3.5?Gas stratification due to the non-mixing of gas streams, 1.3.6?Measurements made using environmental control devices, and 1.3.7?Low levels of gas concentrations. 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 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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