Record Display for the EPA National Library Catalog


Main Title Collaborative study of EPA method 13A and method 13B /
Author Mitchell, William J. ; Suggs, Jack C. ; Bergman., Fred J.
Other Authors
Author Title of a Work
Mitchell, William J.
Suggs, Jack C.
Bergman, Fred J.
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, N.C. ;Midwest Research Inst., Kansas City, Mo.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory,
Year Published 1977
Report Number EPA-600/4-77-050
Stock Number PB-278 849
OCLC Number 52753013
Subjects Aluminum plants--Sampling ; Air--Pollution--Sampling
Additional Subjects Gas analysis ; Fluorides ; Industrial wastes ; Fertilizers ; Aluminum ; Inorganic phosphates ; Combustion products ; Sampling ; Laboratory equipment ; Design criteria ; Performance evaluation ; Statistical analysis ; Calibrating ; EPA method 13A ; EPA method 13B ; Air pollution detection ; Collaborative tests
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-4-77-050 Headquarters Library/Washington,DC 12/02/2015
EKBD  EPA-600/4-77-050 Research Triangle Park Library/RTP, NC 08/01/2003
ELBD ARCHIVE EPA 600-4-77-050 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB-278 849 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 v. (various pagings) : ill. ; 28 cm.
The results from a collaborative test of U.S. EPA Method 13A and 13B are presented. The collaborative test was conducted at a primary aluminum reduction plant. In the collaborative test, six laboratories each operated two Method 13 sampling trains and all laboratories simultaneously sampled the same stack. Ten such sampling runs were done for a total of 120 samples. Each source sample was analyzed for fluoride using both Method 13A and Method 13B. The results of the collaborative test showed that both test methods gave similar results.
"December 1977." "EPA-600/4-77-050."
Contents Notes
Described are the results from a collaborative test of U.S. Environmental Protection AGency Method 13 at a primary aluminum plant. This test method is used to measure the fluoride emissions from primary aluminum plants and phosphate fertilizer plants. In the collaborative test, six laboratories simultaneously sample the same stack using two Method 12 sampling trains for a total of twelve Method 13 samples per sampling run. Ten such sampling runs were accomplished for a total of 120 samples. Each source sample was analyzed for fluoride content using Method 13A (SPANDNS spectrophotometric procedure) and Method 13B (ion selective electrode procedure). Te collaborative test results showed that the two methods gave similar results. The within-laboratory standard deviation in milligrams fluoride per cubic meter for Method 13A was 0.044 and for Method 13B was 0.037. Similarly, the between-laboratory standard deviation for Method 13A was 0.064 and for Method 13B was 0.056. These estimates include sampling and analysis error. Based on the analysis of aqueous fluoride samples by each collaborator, the bias in milligrams of fluoride per liter was -0.08 for Method 13A and -0.10 for Method 13A. Also presented in the report are precision estimates for the two methods in terms of repeatability and reproducibility. A discussion of how to use these collaborative test results for evaluating source testing results is also given.