EP 1110-1-31
31 Aug 01
X-Ray
An instrument that determines lead concentration in
milligrams per square centimeter (mg/cm2 ) using the
Fluorescence Analyzer
(XRF)
principle of x-ray fluorescence (XRF). Two types of XRF
analyzers are used--direct readers and spectrum analyzers.
In this SOW, the term XRF analyzer only refers to portable
instruments manufactured to analyze paint, and does not
refer to laboratory- grade units or portable instruments
designed to analyze soil. (1995 HUD Guidelines)
XRF Performance
The "P.C. Sheet" is unique for each XRF Instrument. It
Characteristic Sheet (PC)
specifies the inconclusive range, calibration check
tolerance, and other instrument specific information.
A-46
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