EPA Method 22 Visual Determination Of Fugitive Emissions From Material Sources And Smoke Emissions From Flares

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78E806D8A66C4344B793FB5847E99BA8

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日期:

2000-2-12

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1168,METHOD 22 - VISUAL DETERMINATION OF FUGITIVE EMISSIONS,FROM MATERIAL SOURCES AND SMOKE EMISSIONS FROM FLARES,NOTE: This method is not inclusive with respect to,observer certification. Some material is incorporated by,reference from Method 9.,1.0 Scope and Application.,This method is applicable for the determination of the,frequency of fugitive emissions from stationary sources,only as specified in an applicable subpart of the,regulations. This method also is applicable for the,determination of the frequency of visible smoke emissions,from flares.,2.0 Summary of Method.,2.1 Fugitive emissions produced during material,processing, handling, and transfer operations or smoke,emissions from flares are visually determined by an observer,without the aid of instruments.,2.2 This method is used also to determine visible,smoke emissions from flares used for combustion of waste,process materials.,2.3 This method determines the amount of time that,visible emissions occur during the observation period (i.e.,the accumulated emission time.) This method does not,require that the opacity of emissions be determined. Since,this procedure requires only the determination of whether,1169,visible emissions occur and does not require the,determination of opacity levels, observer certification,according to the procedures of Method 9 is not required.,However, it is necessary that the observer is knowledgeable,with respect to the general procedures for determining the,presence of visible emissions. At a minimum, the observer,must be trained and knowledgeable regarding the effects of,background contrast, ambient lighting, observer position,relative to lighting, wind, and the presence of uncombined,water (condensing water vapor) on the visibility of,emissions. This training is to be obtained from written,materials found in References 1 and 2 or from the lecture,portion of the Method 9 certification course.,3.0 Definitions.,3.1 Emission frequency means the percentage of time,that emissions are visible during the observation period.,3.2 Emission time means the accumulated amount of,time that emissions are visible during the observation,period.,3.3 Fugitive emissions means emissions generated by,an affected facility which is not collected by a capture,system and is released to the atmosphere. This includes,emissions that (1) escape capture by process equipment,exhaust hoods; (2) are emitted during material transfer; (3),1170,are emitted from buildings housing material processing or,handling equipment; or (4) are emitted directly from process,equipment.,3.4 Observation period means the accumulated time,period during which observations are conducted, not to be,less than the period specified in the applicable regulation.,3.5 Smoke emissions means a pollutant generated by,combustion in a flare and occurring immediately downstream,of the flame. Smoke occurring within the flame, but not,downstream of the flame, is not considered a smoke emission.,4.0 Interferences.,4.1 Occasionally, fugitive emissions from sources,other than the affected facility (e.g., road dust) may,prevent a clear view of the affected facility. This may,particularly be a problem during periods of high wind. If,the view of the potential emission points is obscured to,such a degree that the observer questions the validity of,continuing observations, then the observations shall be,terminated, and the observer shall clearly note this fact on,the data form.,5.0 Safety.,5.1 Disclaimer. This method may involve hazardous,materials, operations, and equipment. This test method may,not address all of the safety problems associated with its,1171,use. It is the responsibility of the user of this test,method to establish appropriate safety and health practices,and determine the applicability of regulatory limitations,prior to performing this test method.,6.0 Equipment.,6.1 Stopwatches (two). Accumulative type with unit,divisions of at least 0.5 seconds.,6.2 Light Meter. Light meter capable of measuring,illuminance in the 50 to 200 lux range, required for indoor,observations only.,7.0 Reagents and Supplies. [Reserved],8.0 Sample Collection, Preservation, Storage, and Transfer.,[Reserved],9.0 Quality Control. [Reserved],10.0 Calibration and Standardization. [Reserved],11.0 Analytical Procedure.,11.1 Selection of Observation Location. Survey the,affected facility, or the building or structure housing the,process to be observed, and determine the locations of,potential emissions. If the affected facility is located,inside a building, determine an observation location that is,consistent with the requirements of the applicable,regulation (i.e., outside obse……

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