- Lead in Paint

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iATL performs thousands of analyses each year on Lead in Paint samples. Many times these samples are generated from environmental engineering / consulting companies that are contracted to perform a survey of all of a building or property's painted surfaces. iATL employs Atomic Absorption Spectrophotometry (AAS) for the analysis of its environmental lead samples.

AAS is a highly sensitive technique (parts per billion levels) that operates by vaporizing a solution of the material in a flame or graphite microfurnace.  The preparation  involves the acid digestion of the solid paint samples into solution. Sample Preparation of Environmental Lead Samples Preparation and analysis times vary depending on the quantity of samples submitted in each batch and potential substrate interferences (ex: plaster adhering to matrix) (See FAQ) associated with each paint sample. iATL utilizes NIOSH, EPA and ASTM methods for these analyses.

AAS Paint results are reported as a percentage of the total sample (% by Weight). iATL can also format deliverables to report results in mg/kg, ppm, or mg/cm2 units. iATL also has significant experience in lead analysis of miscellaneous materials including product testing, ceramic surface testing, etc.  Accreditation is primarily provided by the EPA through a Memorandum of Understanding (MOU) through the American Industrial Hygiene Association (AIHA) National Lead Laboratory Accreditation Program (NLLAP).

Extensive Quality Assurance and Quality Control (QA/QC) regimens are performed as part of an ongoing certification program.  Proficiency testing is primarily conducted through the Proficiency Analytical Testing Program (PAT) administered by AIHA / ELPAT.  On-site technical evaluations are also primarily conducted through AIHA.

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