Only qualitative identification was rated. The names of the participating laboratories and their ratings were available to anyone who requested the information. The EPA program then ended. QC samples are sent twice a year and results are rated on quantitation as well as on qualitative identification of asbestos. In addition, points are deducted for errors in identifying the correct mineralogical characteristics of the fibers.
Results are usually available four months after submittal.
The AIHA program has remained essentially an internal QC program for laboratories. From 1989 to 1995, the AIHA program provided laboratories with the correct fiber identification and semi-quantitative results. Since February 1995, AIHA has added a proficiency rating based on a point system that emphasizes identification and classification and has made the list of proficient laboratories available to the public. Taking the Next Step It is time to take the next step and make this the premier bulk proficiency program by incorporating it into one of the AIHA full accreditation programs. This will assure laboratory users that their work is being done at the highest level of professional competence while providing laboratories with cost effective, relevant QC samples with results that are available on a timely schedule.