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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This practice2 covers procedures and equipment that will permit, within certain limits, representative sampling for the automated determination of gas concentrations of effluent gas streams. The application is limited to the determination of oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), sulfur dioxide (SO 2), nitric oxide (NO), nitrogen dioxide (NO2) and total oxides of nitrogen (NOx).
1.3 There are some combustion processes and situations 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:
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. For more specific safety precautions, refer to 184.108.40.206, 220.127.116.11, and 18.104.22.168.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1356 Terminology Relating to Sampling and Analysis of Atmospheres
D1608 Test Method for Oxides of Nitrogen in Gaseous Combustion Products (Phenol-Disulfonic Acid Procedures)
D3154 Test Method for Average Velocity in a Duct (Pitot Tube Method)
ICS Number Code 13.040.40 (Stationary source emissions)
UNSPSC Code 77121500(Air pollution)
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ASTM D5835-95(2013), Standard Practice for Sampling Stationary Source Emissions for the Automated Determination of Gas Concentrations, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top