EPA Method 106 Determination Of Vinyl Chloride Emissions From Stationary Sources
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ID： |
CA7C88ECEA464289A8FD2FA7CCCDC88F |
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文件大小(MB)： |
0.08 |
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页数： |
22 |
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文件格式： |
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日期： |
2000-2-12 |
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购买： |
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）：
1807,METHOD 106 - DETERMINATION OF VINYL CHLORIDE EMISSIONS,FROM STATIONARY SOURCES,1.0 Scope and Application.,1.1 Analytes.,Analyte CAS No. Sensitivity,Vinyl Chloride,(CH2:CHCl),75-01-4 Dependent upon,analytical equipment,1.2 Applicability. This method is applicable for,the determination of vinyl chloride emissions from ethylene,dichloride, vinyl chloride, and polyvinyl chloride,manufacturing processes. This method does not measure vinyl,chloride contained in particulate matter.,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 bag sample of stack gas containing,vinyl chloride is subjected to GC analysis using a flame,ionization detector (FID).,3.0 Definitions. [Reserved],4.0 Interferences.,4.1 Resolution interferences of vinyl chloride may be,encountered on some sources. Therefore, the chromatograph,operator should select the column and operating parameters,best suited to the particular analysis requirements. The,1808,selection made is subject to approval of the Administrator.,Approval is automatic, provided that confirming data are,produced through an adequate supplemental analytical,technique, and that the data are available for review by the,Administrator. An example of this would be analysis with a,different column or GC/mass spectroscopy.,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.,5.2 Toxic Analyte. Care must be exercised to prevent,exposure of sampling personnel to vinyl chloride, which is a,carcinogen.,6.0 Equipment and Supplies.,6.1 Sample Collection (see Figure 106-1). The,sampling train consists of the following components:,6.1.1 Probe. Stainless steel, borosilicate glass,Teflon tubing (as stack temperature permits), or equivalent,equipped with a glass wool plug to remove particulate,matter.,1809,6.1.2 Sample Lines. Teflon, 6.4-mm outside diameter,of sufficient length to connect probe to bag. Use a new,unused piece for each series of bag samples that constitutes,an emission test, and discard upon completion of the test.,6.1.3 Quick Connects. Stainless steel, male (2) and,female (2), with ball checks (one pair without), located as,shown in Figure 106-1.,6.1.4 Tedlar Bags. 50-to 100-liter capacity, to,contain sample. Aluminized Mylar bags may be used if the,samples are analyzed within 24 hours of collection.,6.1.5 Bag Containers. Rigid leak-proof containers,for sample bags, with covering to protect contents from,sunlight.,6.1.6 Needle Valve. To adjust sample flow rates.,6.1.7 Pump. Leak-free, with minimum of 2-liter/min,capacity.,6.1.8 Charcoal Tube. To prevent admission of vinyl,chloride and other organics to the atmosphere in the,vicinity of samplers.,6.1.9 Flowmeter. For observing sampling flow rate;,capable of measuring a flow range from 0.10 to 1.00,liter/min.,6.1.10 Connecting Tubing. Teflon, 6.4-mm outside,diameter, to assemble sampling train (Figure 106-1).,1810,6.1.11 Tubing Fittings and Connectors. Teflon or,stainless steel, to assemble sampling training.,6.2 Sample Recovery. Teflon tubing, 6.4-mm outside,diameter, to connect bag to GC sample loop. Use a new,unused piece for each series of bag samples that constitutes,an emission test, and discard upon conclusion of analysis of,those bags.,6.3 Analysis. The following equipment is required:,6.3.1 Gas Chromatograph. With FID potentiometric,strip chart recorder and 1.0 to 5.0-ml heated sampling loop,in automatic sample valve. The chromatographic system shall,be capable of producing a response to 0.1-ppmv vinyl,chloride that is at least as great as the average noise,level. (Response is measured from the average value of the,base line to the maximum of the wave form, while standard,operating conditions are in use.),6.3.2 Chromatographic Columns. Columns as listed,below. Other columns may be used provided that the,precision and accuracy of the analysis of vinyl chloride,standards are not impaired and that information is available,for review confirming that there is adequate resolution of,vinyl chloride peak. (Adequate resolution is defined as an,area overlap of not more than 10 percent of the vinyl,chloride peak by an interferent peak. Calculation of area,overlap is explained in Procedure 1 of appendix C to this,1811,part: ……
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