Standard Practice for Quality Systems for Conducting In Situ Measurements of Lead Content in Paint or Other Coatings Using Field-Portable X-Ray Fluorescence (XRF) Devices

Importancia y uso:

5.1 This practice provides procedures to generate and document QC data for ensuring that an XRF is operating within acceptable tolerances throughout the testing period when being used to collect lead results during a lead-based paint (LBP) inspection for the purposes of generating lead classification results.

5.2 This practice is intended to supplement XRF instrument manufacturer protocols and PCSs4 through the use of QA and QC procedures to provide uniform lead testing practices among the wide variety of available field-portable XRF instruments.

Note 1: The United States requires that an XRF used to perform a lead-based paint inspection in housing is to be utilized according to the PCS for the particular instrument model in use.

5.3 While the QC results collected using this practice can provide assurances that an XRF instrument is operating within acceptable tolerances, this practice does not determine an actual level of confidence for a classification result obtained from an XRF measurement.

5.4 This practice does not address selection of test locations or representative sampling for leaded paint. Additional information on conducting measurements of lead in leaded paint or other coatings may be found in Guide E2115 and the HUD Guidelines, Chapter 7.

5.5 This practice involves the use of field-portable XRF instruments that may contain radioactive materials or X-ray tubes that emit X-rays or gamma rays, or both. These instruments are intended for use only by qualified, trained personnel.

5.6 The use of field-portable XRF instruments for measurement of lead may not accurately reveal low but still potentially hazardous levels of lead.

Subcomité:

D22.12

Referida por:

E2115-22

Volúmen:

11.07

Número ICS:

13.080.10 (Chemical characteristics of soil)

Palabras clave:

lead; paint; testing; XRF;