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In 1973 the American Industrial Hygiene Association (AIHA) began accrediting laboratories analyzing industrial hygiene (IH) samples taken to evaluate worker exposure to toxic chemicals. There are now over 400 laboratories accredited by AIHA's IH laboratory accreditation program. In 1993 AIHA established the Environmental Lead Laboratory Accreditation Program (ELLAP) to accredit laboratories analyzing samples of paint chips, soil, and dust wipes for lead content. ELLAP accreditation requires proficiency in the AIHA Environmental Lead Proficiency Analytical Testing (ELPAT) program, a quarterly performance evaluation program which provides blind samples of paint chips, soil, and dust wipes. The ELPAT program was developed with assistance and support from NIOSH and the EPA. ELLAP accreditation also requires triennial site visits and compliance with detailed quality assurance criteria.
lead, American Industrial Hygiene Association, laboratory accreditation, proficiency testing, laboratory quality assurance
National Director, Laboratory Services, and Vice President, Clayton Environmental Consultants, Inc., Pleasanton, CA
Directory, Clayton Environmental Consultants, Inc., Pleasanton, CA