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RECORD NUMBER: 5 OF 483

OLS Field Name OLS Field Data
Main Title Accuracy of Pesticide Reference Standard Solutions. Part I. Factors Affecting Organic Solvent Evaporation.
Author Hodgson, David W. ; Watts, Randall R. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1981
Report Number EPA-600/J-81-090;
Stock Number PB82-247560
Additional Subjects Pesticides ; Organic solvents ; Air pollution ; Evaporation ; Storage ; Reprints ; Standard reference materials
Holdings
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Status
NTIS  PB82-247560 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 7p
Abstract A gravimetric experiment was undertaken to identify the factors affecting solvent evaporation from analytical reference standard solutions and to establish the magnitude of the resultant solvent evaporation. The evaporation of organic solvent from standard solutions is affected by: (1) solvent, (2) container type, (3) solution volume, and (4) storage temperature. Solvents with low vapor pressure-to-surface tension ratios have low evaporation rates. Screw-cap containers with precision-made caps and seals have the lowest evaporation rates. The use of large-volume standard solutions reduces the percent solvent loss. Storage at refrigerator or freezer temperatures can reduce evaporation rate by as much as a factor of 7.
Supplementary Notes Pub. in Jnl. of the Association of Official Analytical Chemists, v65 n1 p89-93 1982. Portions of this document are not fully legible.
NTIS Title Notes Journal article.
Title Annotations Reprint: Accuracy of Pesticide Reference Standard Solutions. Part I. Factors Affecting Organic Solvent Evaporation.
PUB Date Free Form 4 Aug 81
Category Codes 6T; 7D; 57Y; 68E; 99A; 68A
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 323821922
Origin NTIS
Type CAT