||Simulated Precipitation Reference Materials, IV.
Koch, W. F. ;
Marinenko, G. ;
Stolz, J. W. ;
||National Bureau of Standards, Washington, DC. National Measurement Lab.;Environmental Research Center, Research Triangle Park, NC.
Water analysis ;
Air pollution ;
Chemical analysis ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
This report describes work performed at the National Bureau of Standards under the sponsorship of the United States Environmental Protection Agency to establish the composition of a fourth series of reference materials intended to be used for the intercalibration of precipitation measurement stations, to evaluate the stability of the first three series of reference materials, to evaluate current methodologies for pH and acidity measurements, and to make recommendations to improve future reference materials and measurement protocols.