ESTABLISHING THE TRACEABILITY OF RADIOACTIVITY STANDARDS TO THE NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY (NIST)

The publication of ANSI Standard N42.22-1995, ''Traceability of Radioa ctivity Sources to the National Institutes of Standards and Technology and Associated Instrument Quality control''(1) provides an unambiguou s method for establishing the traceability of radioactivity sources to NIST. The criteria necessary for manufacturers to achieve traceabilit y are provided in the following areas: quality assurance, facilities a nd equipment, participation in a NIST measurements assurance program, and certification of sources.