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Attachment B. <br />process, the amount of Chemical X that is lost through the process vent on an <br />annual basis can be estimated as follows: <br /> Input = Amount purchased (8,000 pounds) <br /> Output = Product (24,000 lbs x 25%) + waste (10,000 lbs x 15%) <br /> + process vent loss <br /> Input = Output <br /> 8,000 lbs Chemical X = 6,000 lbs + 1,500 lbs + process vent loss <br /> Process vent loss = 8,000 - 6,000 - 1,500 = 500 lbs Chemical X per year <br />3. <br />Method E: Emission Factors published in the EPA document AP-42, or those al- <br />ready approved by LRAPA, or those developed specifically for your facility, are <br />all acceptable means of estimation of air emissions, unless monitoring data are <br />th <br />available. AP-edition, is <br />available at: (1) LRAPA office, (2) University of Oregon library, or (3) on the In- <br />ternet at http://www.epa.gov/ttn/chief/ap42/index.html. <br /> 4. Method O: When no data exist and document-driven estimation methods are not <br />available, a business may use its best engineering judgment in calculating <br />reportable quantities. When engineering calculations are appropriate, businesses <br />are encouraged to consult EPA 560/4-88- <br />1987at <br />http://nepis.epa.gov/Exe/ZyNET.exe/10003BA2.TXT?ZyActionD=ZyDocument <br />&Client=EPA&Index=1986+Thru+1990&Docs=&Query=FNAME%3D10003B <br />A2.TXT%20or%20(%20Estimating%20or%20Releases%20and%20Waste%20or <br />%20Treatment%20or%20Efficiencies%20or%20for%20or%20the%20or%20Toxi <br />c%20or%20Chemical%20or%20Release%20or%20Inventory%20or%20Form)& <br />Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QFiel <br />d=&QFieldYear=&QFieldMonth=&QFieldDay=&UseQField=&IntQFieldOp=1 <br />&ExtQFieldOp=1&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5 <br />C86thru90%5CTxt%5C00000002%5C10003BA2.txt&User=ANONYMOUS&Pa <br />ssword=anonymous&SortMethod=h%7C- <br />&MaximumDocuments=10&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y <br />150g16/i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back <br />=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&See <br />kPage=x&ZyPURL. This document is also available from National Technical <br />Information Service, 5285 Port Royal Road, Springfield, VA 22161. The NTIS <br />Accession Number is PB 88-210380. <br /> <br />Use of Material Safety Data Sheet (MSDS) Information <br />Information taken directly from a MSDS is considered accurate for the purposes of reporting, <br />unless the reporting company has more accurate information. <br />- 22- <br />