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Main Title Adequacy of Sampling Trains and Analytical Procedures Used for Fluoride.
Author Mitchell, William James ; Midgett., Rodney ;
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, N.C. Quality Assurance Branch.
Year Published 1976
Report Number EPA/600/J-76/046;
Stock Number PB-266 315
Additional Subjects Fluorides ; Aluminum ; Phosphoric acids ; Industrial wastes ; Combustion products ; Distillation ; Sampling ; Sulfuric acid ; Perchloric acid ; Chemical analysis ; Air pollution ; Fertilizers ; Experimental design ; Electrodes ; Efficiency ; Gas analysis ; Laboratory equipment ; Concentration(Composition) ; Stationary sources ; Ion selective electrodes ; Wet methods ; Procedures ; Air pollution detection ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB-266 315 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Abstract Liquid nitrogen-cooled cold-traps were used to establish the collection efficiency for fluorides of two different source sampling trains at primary aluminum reduction plants and wet-process phosphoric acid plants. It was found that the glass frit filter support commonly used in stationary source sampling trains retained fluoride during sampling; therefore, the filter should not be placed before the impingers when sampling for fluoride. Also described are the results of a collaborative test on two standard distillation procedures for fluorides; sulfuric acid distillation and steam distillation from perchloric acid. The results show that the predominant source of imprecision in both methods is the distillation step itself.
Supplementary Notes Pub. in Atmospheric Environment, v10 p865-872 1976.
NTIS Title Notes Journal article.
Title Annotations +++Reprint: Adequacy of Sampling Trains and Analytical Procedures Used for Fluoride.
PUB Date Free Form 8 Mar 76
Category Codes 13B; 2A; 68A; 98A; 99A
NTIS Prices PC A02/MF A01
Primary Description 600/08
Document Type NT
Cataloging Source NTIS/MT
Control Number 323716500
Origin NTIS
Type CAT