CDPH Lead Inspector/Assessor California State Practice Exam

Where can acceptable operating specifications for each XRF unit be found?

1. XRF Safety Manual

2. XRF Performance Characteristics Sheet

3. EPA Guidelines

4. XRF User Handbook

The correct answer is: XRF Performance Characteristics Sheet

The acceptable operating specifications for each XRF (X-ray fluorescence) unit are most accurately found in the XRF Performance Characteristics Sheet. This document outlines the specific performance parameters that need to be met for the XRF unit to operate effectively and reliably. These characteristics include factors such as detection limits, energy resolution, and calibration procedures, which are critical for ensuring precise measurements in lead testing and other applications. While the XRF User Handbook and the XRF Safety Manual may provide useful information about the operation of the device and safety procedures, respectively, they do not specifically contain the detailed performance characteristics required for optimal functioning of the XRF unit. Although EPA Guidelines may offer overarching regulations and standards that impact the use and testing procedures of XRF units, they do not substitute for the more precise specifications outlined in the Performance Characteristics Sheet.