OLS : Record

RECORD NUMBER: 34 OF 1912

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
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
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB-266 315 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
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
Control Number 323716500
Cataloging Source NTIS/MT
Origin NTIS
Type CAT