ASTM D6348-12(2020)

5.1?The FTIR measurements provide for multicomponent on-site analysis of source effluent.

5.2?This test method provides the volume concentration of detected analytes. Converting the volume concentration to a mass emission rate using a particular compounds molecular weight, and the effluent volumetric flow rate, temperature and pressure is useful for determining the impact of that compound to the atmosphere.

5.3?Known concentrations of target analytes are spiked into the effluent to evaluate the sampling and analytical systems effectiveness for transport and quantification of the target analytes, and to ensure that the data collected are meaningful.

5.4?The FTIR measurement data are used to evaluate process conditions, emissions control devices, and for determining compliance with emission standards or other applicable permits.

5.5?Data quality objectives for each specific testing program must be specified and outlined in a test plan (Annex A1).5

1.1?This field test method employs an extractive sampling system to direct stationary source effluent to an FTIR spectrometer for the identification and quantification of gaseous compounds. Concentration results are provided. This test method is potentially applicable for the determination of compounds that (1) have sufficient vapor pressure to be transported to the FTIR spectrometer and (2) absorb a sufficient amount of infrared radiation to be detected.

1.2?This field test method provides near real time analysis of extracted gas samples from stationary sources. Gas streams with high moisture content may require conditioning to minimize the excessive spectral absorption features imposed by water vapor.

1.3?This field test method requires the preparation of a source specific field test plan. The test plan must include the following: (1.4?The FTIR instrument range should be sufficient to measure from high ppm(v) to ppb(v) and may be extended to higher or lower concentrations using any or all of the following procedures:

1.5?The practical minimum detectable concentration is instrument, compound, and interference specific (see Annex A2 for procedures to estimate the achievable minimum detectable concentrations (MDCs)). The actual sensitivity of the FTIR measurement system for the individual target analytes depends upon the following:

1.6?Practices E168 and E1252 are suggested for additional reading.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9?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.