Accession Number:

ADA270457

Title:

A Comparative Test and Evaluation of Lead-Based-Paint Test Kits

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1993-09-01

Pagination or Media Count:

126.0

Abstract:

This research compares the performance of five chemical spot-test kits on lead-based paints. The kits are designed to give a qualitative assessment of lead in paint. The intent of the research effort was to develop a standard evaluation procedure for follow-on studies and assess the baseline performance of the kits. The test kits in this study use either sodium sulfide or sodium rhodizonate to react with the lead. The presence of lead is indicated by a color change. The kits were used to test prepared sample paint films at seven known lead concentrations ranging from 0.04 to 1.3 by weight. The study was designed to minimize variables such as paint composition, paint age, layered combinations of paints, type of substrate, and user training. Two sodium sulfide kits failed with 100 false positive readings. The remaining sodium rhodizonate test provided positive and negative readings that varied as expected with concentration. For this kit, probabilities of detection were calculated and a performance curve was generated and compared to a discomfort curve.... Toxic hazards, Spot tests, LeadMetal, Paints

Subject Categories:

  • Toxicology
  • Inorganic Chemistry
  • Coatings, Colorants and Finishes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE