nvlap dosimetry accreditation
DESCRIPTION
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 : - PowerPoint PPT PresentationTRANSCRIPT
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 :• An operator of a certification program• A certifier of products or personnel• A certifier of test data
NVLAP – Regulatory Requirement
15 CFR Part 285 – NVLAP• Department of Commerce regulation
• NIST administers NVLAP
• Established in 1976
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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
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NVLAP Accreditation
•Applicant laboratories – any testing laboratory
• Government/national testing laboratories • Manufacturer’s testing laboratories• Independent testing laboratories• Domestic testing laboratories• Foreign testing laboratories
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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
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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 verbatim with ISO/IEC 17025.
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Program-specific Requirements
• Program-specific Handbooks
• NIST Handbook 150-4, Ionizing Radiation Dosimetry
• Consensus standards
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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)
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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
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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
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NVLAP Accreditation
• On-site assessment every two years• Quality management system• Technical capabilities
• NVLAP Assessors• Technical experts (industry, government,
academia)• Trained in assessment techniques
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NVLAP On-site Assessment
•Assessor resources are on NVLAP website
• publically available • no surprises for lab
•Laboratories resolve all nonconformities to maintain accreditation
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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
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Dosimeters
• Film• TLDs (thermoluminescent dosimeters)• OSLs (optically-stimulated luminescence)• EPDs (electronic personal dosimeters)• Instadose (built-in memory chip)
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Dosimetry Processing
• Some dosimeters are not “processed”, but are electronically “read”
• Processed Film / TLDs / OSLs
• Not processed EPDs / Instadose
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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
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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
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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
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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)
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Summary –Dosimetry Processing Accreditation
PLEASE REMEMBER
•Dosimeters are not accredited.
•Laboratories are accredited.
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