ASTM's Interlaboratory Crosscheck Programs provide participating laboratories with a statistical quality assurance (SQA) tool, enabling them to compare their performance in the use of ASTM methods against other laboratories worldwide.

As a program recipient, you will receive different samples (representative of the product line) for each test cycle, data report forms and test instructions. Your laboratory performs the tests that you normally conduct within your own facility using the specified ASTM methods cited in the program. Single determinations by each laboratory are required, as the program does not allow the reporting of averages of replicate determinations.

Each laboratory electronically submits their test data to ASTM International for use in generating statistical summary reports. Final summary reports, provided in electronic format to participants only, contain: each participating laboratory's test results (coded for confidentiality); statistical analysis of test data; charts plotting test results versus laboratory code; and other pertinent information.

For information on the 22 individual testing programs, including test schedules and fees, go to www.astm.org/STATQA/ilcpprograms.htm or contact Jamie Huffnagle, ASTM International (phone: 610-832-9682; jhuffnag@astm.org).