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NVLAP Dosimetry Accreditation

NVLAP Dosimetry Accreditation. Organization of Agreement States – August 2012. National Voluntary Laboratory Accreditation Program (NVLAP). NVLAP is: A system for accrediting laboratories found competent to perform specific tests or calibrations NVLAP is not :

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NVLAP Dosimetry Accreditation

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  1. NVLAP Dosimetry Accreditation Organization of Agreement States – August 2012

  2. National Voluntary Laboratory Accreditation Program (NVLAP) • NVLAP is: • A system for accrediting laboratories found competent to perform specific tests or calibrations • NVLAP is not: • An operator of a certification program • A certifier of products or personnel • A certifier of test data

  3. NVLAP– Regulatory Requirement 15 CFR Part 285 – NVLAP • Department of Commerce regulation • NIST administers NVLAP • Established in 1976

  4. NVLAP Accreditation Programs TESTING-Ionizing Radiation Dosimetry - Radiation Detection Instrument Testing Carpet/Electric Motors/ Lighting/Thermal Insulation/ Fasteners-Metals/EMC-Telecommunications/IT Security/ Asbestos/Acoustics/Construction/ Biometrics/Health IT

  5. NVLAP Accreditation • Applicant laboratories – any testing laboratory • Government/national testing laboratories • Manufacturer’s testing laboratories • Independent testing laboratories • Domestic testing laboratories • Foreign testing laboratories

  6. NVLAP Accreditation • Accrediting body - ISO/IEC 17011, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies • Accredited laboratories - ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories

  7. General Accreditation Criteria • NIST Handbook 150, NVLAP Procedures and General Requirements • Ensures consistency with international standards and guidelines, specifically ISO/IEC 17025. • Chapter 4, Management Requirements, and Chapter 5, Technical Requirements, are verbatimwith ISO/IEC 17025.

  8. Program-specific Requirements • Program-specific Handbooks • NIST Handbook 150-4, Ionizing Radiation Dosimetry • Consensus standards

  9. Dosimetry Standards • Consensus standards • ANSI N13.11-2009, Personnel dosimetry Performance – Criteria for Testing (whole body) • ANSI N13.32-2008, Performance Testing of Extremity Dosimeters (extremity)

  10. Dosimetry Proficiency Testing • Different radiation categories (see ANSI N13.11 and ANSI N13.32) • Accident photons • Photons/photon mixture • Beta • Photon/beta mixtures • Neutron/photon mixtures

  11. Dosimetry Proficiency Testing • Proficiency testing (ANSI N13.11 and ANSI N13.32) • Submit dosimeters for proficiency testing – every 2 years • Test in categories that best represent the services provided

  12. NVLAP Accreditation • On-site assessment every two years • Quality management system • Technical capabilities • NVLAP Assessors • Technical experts (industry, government, academia) • Trained in assessment techniques

  13. NVLAP On-site Assessment • Assessor resources are on NVLAP website • publically available • no surprises for lab • Laboratories resolve all nonconformities to maintain accreditation

  14. Dosimetry Accreditation • Dosimeters are NOT accredited • NVLAP does not certify any product • Dosimetry processors are accredited • Scope of accreditation lists the processing equipment, dosimeters, holders and radiation categories

  15. Dosimeters • Film • TLDs (thermoluminescent dosimeters) • OSLs (optically-stimulated luminescence) • EPDs (electronic personal dosimeters) • Instadose (built-in memory chip)

  16. Dosimetry Processing • Some dosimeters are not “processed”, but are electronically “read” • Processed Film / TLDs / OSLs • Not processed EPDs / Instadose

  17. NVLAP Accreditation • All dosimeters types (processed and not processed) have to be submitted for proficiency testing • Dosimeters are pulled from existing inventory and not specially selected • Dosimeter has to “pass” PT in the radiation categories for which lab seeks accreditation

  18. NVLAP Accreditation • Accredited laboratory has to have control over data obtained from dosimeter • Clients cannot manipulate/change data used to report dose • Instadose data goes directly to accredited laboratory • Fully automated transfer of data

  19. Summary –Dosimetry Processing Accreditation • Any laboratory may apply • Government/national testing laboratories • Manufacturer’s testing laboratories • Independent testing laboratories • Domestic testing laboratories • Foreign testing laboratories

  20. Summary –Dosimetry Processing Accreditation • Scope of Accreditation • Dosimetry system • Dosimeter, badge holder, readers • Radiation categories for which the lab seeks accreditation • ANSI N13.11(whole body) • ANSI N13.32 (extremity)

  21. Summary –Dosimetry Processing Accreditation PLEASE REMEMBER • Dosimeters are not accredited. • Laboratories are accredited.

  22. Contact Info – Betty Ann Sandoval NIST/NVLAP http:www.nist.gov/nvlap 301-975-8446 betty.sandoval@nist.gov

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