EPA Method 10B Determination Of Carbon Monoxide Emissions From Stationary Sources
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ID： |
7D1BA445FDD14EBE9C8952AFD9C0A55C |
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文件大小(MB)： |
0.02 |
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页数： |
8 |
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文件格式： |
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日期： |
2000-2-12 |
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文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
779,METHOD 10B - DETERMINATION OF CARBON MONOXIDE,EMISSIONS FROM STATIONARY SOURCES,NOTE: This method is not inclusive with respect to,specifications (e.g., equipment and supplies) and procedures,(e.g., sampling and analytical) essential to its,performance. Some material is incorporated by reference,from other methods in this part. Therefore, to obtain,reliable results, persons using this method should have a,thorough knowledge of at least the following additional test,methods: Method 1, Method 4, Method 10A, and Method 25.,1.0 Scope and Application.,1.1 Analytes.,Analyte CAS No. Sensitivity,Carbon monoxide (CO) 630-08-0 not determined,1.2 Applicability. This method applies to the,measurement of CO emissions at petroleum refineries and from,other sources when specified in an applicable subpart of the,regulations.,1.3 Data Quality Objectives. Adherence to the,requirements of this method will enhance the quality of the,data obtained from air pollutant sampling methods.,2.0 Summary of Method.,2.1 An integrated gas sample is extracted from the,sampling point, passed through a conditioning system to,780,remove interferences, and collected in a Tedlar bag. The CO,is separated from the sample by gas chromatography (GC) and,catalytically reduced to methane (CH4) which is determined,by flame ionization detection (FID). The analytical portion,of this method is identical to applicable sections in Method,25 detailing CO measurement.,3.0 Definitions. [Reserved],4.0 Interferences.,4.1 Carbon dioxide (CO2) and organics potentially can,interfere with the analysis. Most of the CO2 is removed,from the sample by the alkaline permanganate conditioning,system; any residual CO2 and organics are separated from the,CO by GC.,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,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. The analyzer users,manual should be consulted for specific precautions,concerning the analytical procedure.,6.0 Equipment and Supplies.,781,6.1 Sample Collection. Same as in Method 10A,Section 6.1.,6.2 Sample Analysis. A GC/FID analyzer, capable of,quantifying CO in the sample and consisting of at least the,following major components, is required for sample analysis.,[Alternatively, complete Method 25 analytical systems,(Method 25, Section 6.3) are acceptable alternatives when,calibrated for CO and operated in accordance with the Method,25 analytical procedures (Method 25, Section 11.0).],6.2.1 Separation Column. A column capable of,separating CO from CO2 and organic compounds that may be,present. A 3.2-mm (c-in.) OD stainless steel column packed,with 1.7 m (5.5 ft.) of 60/80 mesh Carbosieve S-II,(available from Supelco) has been used successfully for this,purpose.,6.2.2 Reduction Catalyst. Same as in Method 25,Section 6.3.1.2.,6.2.3 Sample Injection System. Same as in Method 25,Section 6.3.1.4, equipped to accept a sample line from the,Tedlar bag.,6.2.4 Flame Ionization Detector. Meeting the,linearity specifications of Section 10.3 and having a,minimal instrument range of 10 to 1,000 ppm CO.,6.2.5 Data Recording System. Analog strip chart,recorder or digital integration system, compatible with the,782,FID, for permanently recording the analytical results.,7.0 Reagents and Standards.,7.1 Sample Collection. Same as in Method 10A,Section 7.1.,7.2 Sample Analysis.,7.2.1 Carrier, Fuel, and Combustion Gases. Same as,in Method 25, Sections 7.2.1, 7.2.2, and 7.2.3,respectively.,7.2.2 Calibration Gases. Three standard gases with,nominal CO concentrations of 20, 200, and 1,000 ppm CO in,nitrogen. The calibration gases shall be certified by the,manufacturer to be ± 2 percent of the specified,concentrations.,7.2.3 Reduction Catalyst Efficiency Check Calibration,Gas. Standard CH4 gas with a nominal concentration of 1,000,ppm in air.,8.0 Sample Collection, Preservation, Storage, and,Transport.,Same as in Method 10A, Section 8.0.,9.0 Quality Control.,Section,Quality,Control Measure Effect,8.0 Sample bag/sampling,system leak-checks,Ensures that negative bias,introduced through leakage,is minimized,783,Section,Quality,Control Measure Effect,10.1 Carrier gas blank,check,Ensures that positive bias,introduced by contamination,of carrier gas is less than,5 ppmv,10.2 Reduction catalyst,efficiency check,Ensures that negative bias,introduced by inefficient,reduction catalyst is less,than 5 percent,10.3 Analyzer cali……
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