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STANDARD OPERATING PROCEDURES FOR MEASUREMENT OF LEAD IN PAINT USING THE SCITEC MAP-3 X-RAY FLUORESCENCE SPECTROMETER
Citation:
Hardison, D., J. Neefus, E. Estes, AND W. Gutknecht. STANDARD OPERATING PROCEDURES FOR MEASUREMENT OF LEAD IN PAINT USING THE SCITEC MAP-3 X-RAY FLUORESCENCE SPECTROMETER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/8-91/214.
Description:
A portable X-ray fluorescence (XRF) procedure for quantatively measuring lead in paint in situ is described along with recommended QA/QC practices. he procedure was evaluated using calibration paint films over various substrates and with field samples. sing the K shell X-rays, a typical linear range of 0.2 to 10.0 Pb/sq. cm was found. recisions achieved were 0.1 mg Pb/sq. cm for laboratory standards and 0.3 Pb/sq. cm for field samples. t 1.0 Pb/sq. cm, accuracy was 0.1 mg PB/sq. cm. ue to variable attenuation effects, use of the L shell X-ray option with this instrument is recommended only when the paint is known to be thin and consist of only two or three layers.