EPA Method 101A Determination Of Particulate And Gaseous Mercury Emissions From Sewage Sludge Incinerators
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ID： |
4209424FA49E4BA2A5259665CD4E29D9 |
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文件大小(MB)： |
0.04 |
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页数： |
24 |
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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）：
1731,METHOD 101A - DETERMINATION OF PARTICULATE AND GASEOUS,MERCURY EMISSIONS FROM SEWAGE SLUDGE INCINERATORS,NOTE: This method does not include all of the,specifications (e.g., equipment and supplies) and procedures,(e.g., sampling and analytical) essential to its,performance. Some material is incorporated by reference,from methods in Appendix A to 40 CFR Part 60 and in this,part. Therefore, to obtain reliable results, persons using,this method should also have a thorough knowledge of at,least the following additional test methods: Methods 1,Method 2, Method 3, and Method 5 of Part 60 (Appendix A),and Method 101 Part 61 (Appendix B).,1.0 Scope and Application.,1.1 Analytes.,Analyte CAS No. Sensitivity,Mercury (Hg) 7439-97-6 Dependent upon,spectrophotometer and recorder,1.2 Applicability. This method is applicable for the,determination of Hg emissions from sewage sludge,incinerators and other sources as 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obtained from air pollutant sampling methods.,2.0 Summary of Method.,1732,2.1 Particulate and gaseous Hg emissions are,withdrawn isokinetically from the source and are collected,in acidic potassium permanganate (KMnO4) solution. The Hg,collected (in the mercuric form) is reduced to elemental Hg,which is then aerated from the solution into an optical cell,and measured by atomic absorption spectrophotometry.,3.0 Definitions. [Reserved],4.0 Interferences.,4.1 Sample Collection. Excessive oxidizable organic,matter in the stack gas prematurely depletes the KMnO4,solution and thereby prevents further collection of Hg.,4.2 Analysis. Condensation of water vapor on the,optical cell windows causes a positive interference.,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 Corrosive Reagents. The following reagents are,hazardous. Personal protective equipment and safe,procedures are useful in preventing chemical splashes. If,1733,contact occurs, immediately flush with copious amounts of,water for at least 15 minutes. Remove clothing under shower,and decontaminate. Treat residual chemical burns as thermal,burns.,5.2.1 Hydrochloric Acid (HCl). Highly toxic. Vapors,are highly irritating to eyes, skin, nose, and lungs,causing severe damage. May cause bronchitis, pneumonia, or,edema of lungs. Exposure to concentrations of 0.13 to 0.2,percent can be lethal to humans in a few minutes. Provide,ventilation to limit exposure. Reacts with metals,producing hydrogen gas.,5.2.2 Nitric Acid (HNO3). Highly corrosive to eyes,skin, nose, and lungs. Vapors cause bronchitis, pneumonia,or edema of lungs. Reaction to inhalation may be delayed as,long as 30 hours and still be fatal. Provide ventilation to,limit exposure. Strong oxidizer. Hazardous reaction may,occur with organic materials such as solvents.,5.2.3 Sulfuric acid (H2SO4). Rapidly destructive to,body tissue. Will cause third degree burns. Eye damage may,result in blindness. Inhalation may be fatal from spasm of,the larynx, usually within 30 minutes. May cause lung,tissue damage with edema. 3 mg/m3 will cause lung damage in,uninitiated. 1 mg/m3 for 8 hours will cause lung damage or,in higher concentrations, death. Provide ventilation to,1734,limit inhalation. Reacts violently with metals and,organics.,5.3 Chlorine Evolution. Hydrochloric acid reacts,with KMnO4 to liberate chlorine gas. Although this is a,minimal concern when small quantities of HCl (5-10 ml) are,used in the impinger rinse, a potential safety hazard may,still exist. At sources that emit higher concentrations of,oxidizable materials (e.g., power plants), more HCl may be,required to remove the larger amounts of brown deposit,formed in the impingers. In such cases, the potential,safety hazards due to sample container pressurization are,greater, because of the larger volume of HCl rinse added to,the recovered sample. These hazards are eliminated by,storing and analyzing the HCl impinger wash separately from,the permanganate impinger sample.,6.0 Equipment and Supplies.,6.1 Sample Collection and Sample Recovery. Same as,Method 101, Sections 6.1 and 6.2, respectively, with the,following exceptions:,6.1.1 Probe Liner. Same as in Method 101, Section,6.1.2, except that if a filter is used ah……
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