EPA Method 17 Determination Of Particulate Matter Emissions From Stationary Sources
|
ID： |
12091931DABD425BB3C2C578AAE47317 |
|
文件大小(MB)： |
0.24 |
|
页数： |
14 |
|
文件格式： |
|
|
日期： |
2000-2-12 |
|
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）：
1035,METHOD 17 - DETERMINATION OF PARTICULATE MATTER,EMISSIONS FROM STATIONARY SOURCES,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 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 2, Method 3, Method 5.,1.0 Scope and Application.,1.1 Analyte. Particulate matter (PM). No CAS number,assigned.,NOTE: Particulate matter is not an absolute quantity.,It is a function of temperature and pressure. Therefore, to,prevent variability in PM emission regulations and/or,associated test methods, the temperature and pressure at,which PM is to be measured must be carefully defined. Of,the two variables (i.e., temperature and pressure),temperature has the greater effect upon the amount of PM in,an effluent gas stream; in most stationary source,categories, the effect of pressure appears to be negligible.,In Method 5, 120 EC (248 EF) is established as a nominal,reference temperature. Thus, where Method 5 is specified in,an applicable subpart of the standard, PM is defined with,1036,respect to temperature. In order to maintain a collection,temperature of 120 EC (248 EF), Method 5 employs a heated,glass sample probe and a heated filter holder. This,equipment is somewhat cumbersome and requires care in its,operation. Therefore, where PM concentrations (over the,normal range of temperature associated with a specified,source category) are known to be independent of temperature,it is desirable to eliminate the glass probe and the heating,systems, and to sample at stack temperature.,1.2 Applicability. This method is applicable for the,determination of PM emissions, where PM concentrations are,known to be independent of temperature over the normal range,of temperatures characteristic of emissions from a specified,source category. It is intended to be used only when,specified by an applicable subpart of the standards, and,only within the applicable temperature limits (if,specified), or when otherwise approved by the Administrator.,This method is not applicable to stacks that contain liquid,droplets or are saturated with water vapor. In addition,this method shall not be used as written if the projected,cross-sectional area of the probe extension-filter holder,assembly covers more than 5 percent of the stack,cross-sectional area (see Section 8.1.2).,1037,1.3 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 Particulate matter is withdrawn isokinetically,from the source and collected on a glass fiber filter,maintained at stack temperature. The PM mass is determined,gravimetrically after the removal of uncombined water.,3.0 Definitions.,Same as Method 5, Section 3.0.,4.0 Interferences. [Reserved],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.,6.0 Equipment and Supplies.,6.1 Sampling Train. A schematic of the sampling,train used in this method is shown in Figure 17-1. The,sampling train components and operation and maintenance are,1038,very similar to Method 5, which should be consulted for,details.,6.1.1 Probe Nozzle, Differential Pressure Gauge,Metering System, Barometer, Gas Density Determination,Equipment. Same as in Method 5, Sections 6.1.1, 6.1.4,6.1.8, 6.1.9, and 6.1.10, respectively.,6.1.2 Filter Holder. The in-stack filter holder,shall be constructed of borosilicate or quartz glass, or,stainless steel. If a gasket is used, it shall be made of,silicone rubber, Teflon, or stainless steel. Other holder,and gasket materials may be used, subject to the approval of,the Administrator. The filter holder shall be designed to,provide a positive seal against leakage from the outside or,around the filter.,6.1.3 Probe Extension. Any suitable rigid probe,extension may be used after the filter holder.,6.1.4 Pitot Tube. Same as in Method 5, Section,6.1.3.,6.1.4.1 It is recommended (1) that the pitot tube,have a known baseline coefficient, determined as outlined in,Section 10 of Method 2; and (2) that this known coefficient,be preserved by……
……