EPA Method 10 Determination Of Carbon Monoxide Emissions From Stationary Sources (Instrumental Analyzer Procedure)

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0A796E80C23F41FCA37DE2BF0050BE70

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日期:

2006-8-15

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1,METHOD 10 - DETERMINATION OF CARBON MONOXIDE EMISSIONS FROM,STATIONARY SOURCES,(INSTRUMENTAL ANALYZER PROCEDURE),1.0 Scope and Application,What is Method 10?,Method 10 is a procedure for measuring carbon monoxide (CO) in stationary source,emissions using a continuous instrumental analyzer. Quality assurance and quality control,requirements are included to assure that you, the tester, collect data of known quality. You must,document your adherence to these specific requirements for equipment, supplies, sample,collection and analysis, calculations, and data analysis.,This method does not completely describe all equipment, supplies, and sampling and,analytical procedures you will need but refers to other methods for some of the details.,Therefore, to obtain reliable results, you should also have a thorough knowledge of these,additional test methods which are found in appendix A to this part:,(a) Method 1—Sample and Velocity Traverses for Stationary Sources.,(b) Method 4—Determination of Moisture Content in Stack Gases.,(c) Method 7E—Determination of Nitrogen Oxides Emissions from Stationary,Sources (Instrumental Analyzer Procedure).,1.1 Analytes. What does this method determine? This method measures the,concentration of carbon monoxide.,2,Analyte CAS No. Sensitivity,CO 630-08-0 Typically <2% of Calibration Span,1.2 Applicability. When is this method required? The use of Method 10 may be,required by specific New Source Performance Standards, State Implementation Plans, and,permits where CO concentrations in stationary source emissions must be measured, either to,determine compliance with an applicable emission standard or to conduct performance testing of,a continuous emission monitoring system (CEMS). Other regulations may also require the use,of Method 10.,1.3 Data Quality Objectives. Refer to Section 1.3 of Method 7E.,2.0 Summary of Method,In this method, you continuously or intermittently sample the effluent gas and convey the,sample to an analyzer that measures the concentration of CO. You must meet the performance,requirements of this method to validate your data.,3.0 Definitions,Refer to Section 3.0 of Method 7E for the applicable definitions.,4.0 Interferences,Substances having a strong absorption of infrared energy may interfere to some extent in,some analyzers. Instrumental correction may be used to compensate for the interference. You,3,may also use silica gel and ascarite traps to eliminate the interferences. If this option is used,correct the measured gas volume for the carbon dioxide (CO2) removed in the trap.,5.0 Safety,Refer to Section 5.0 of Method 7E.,6.0 Equipment and Supplies,What do I need for the measurement system?,6.1 Continuous Sampling. Figure 7E-1 of Method 7E is a schematic diagram of an,acceptable measurement system. The components are the same as those in Sections 6.1 and 6.2,of Method 7E, except that the CO analyzer described in Section 6.2 of this method must be used,instead of the analyzer described in Section 6.2 of Method 7E. You must follow the noted,specifications in Section 6.1 of Method 7E except that the requirements to use stainless steel,Teflon, or non-reactive glass filters do not apply. Also, a heated sample line is not required to,transport dry gases or for systems that measure the CO concentration on a dry basis.,6.2 Integrated Sampling.,6.2.1 Air-Cooled Condenser or Equivalent. To remove any excess moisture.,6.2.2 Valve. Needle valve, or equivalent, to adjust flow rate.,6.2.3 Pump. Leak-free diaphragm type, or equivalent, to transport gas.,6.2.4 Rate Meter. Rotameter, or equivalent, to measure a flow range from 0 to 1.0 liter,per minute (0.035 cfm).,6.2.5 Flexible Bag. Tedlar, or equivalent, with a capacity of 60 to 90 liters (2 to 3 ft3).,Leak-test the bag in the laboratory before using by evacuating with a pump followed by a dry gas,meter. When the evacuation is complete, there should be no flow through the meter.,4,6.3 What analyzer must I use? You must use an instrument that continuously,measures CO in the gas stream and meets the specifications in Section 13.0. The dual-range,analyzer provisions in Section 6.2.8.1 of Method 7E apply.,7.0 Reagents and Standards,7.1 Calibration Gas. What calibration gases do I need? Refer to Section 7.1 of,Method 7E for the calibration gas requirements.,7.2 Interference Check. What additional reagents do I need for the interference,check? Use the appropriate test gases listed in Table 7E-3 of Method 7E (i.e., potential,interferents, as identified by the instrument manufacturer) to conduct the interference check.,8.0 Sample Collection, Preservation, Storage, and Transport,Emission Test Procedur……

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