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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

NVLAP Dosimetry Accreditation

Organization of Agreement States – August 2012

national voluntary laboratory accreditation program nvlap
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
NVLAP– Regulatory Requirement

15 CFR Part 285 – NVLAP

  • Department of Commerce regulation
  • NIST administers NVLAP
  • Established in 1976
nvlap accreditation programs
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

nvlap accreditation
NVLAP Accreditation
  • Applicant laboratories – any testing laboratory
    • Government/national testing laboratories
    • Manufacturer’s testing laboratories
    • Independent testing laboratories
    • Domestic testing laboratories
    • Foreign testing laboratories
nvlap accreditation1
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
general accreditation criteria
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.
program specific requirements
Program-specific Requirements
  • Program-specific Handbooks
    • NIST Handbook 150-4, Ionizing Radiation Dosimetry
    • Consensus standards
dosimetry standards
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)
dosimetry proficiency testing
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
dosimetry proficiency testing1
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
nvlap accreditation2
NVLAP Accreditation
  • On-site assessment every two years
    • Quality management system
    • Technical capabilities
  • NVLAP Assessors
    • Technical experts (industry, government, academia)
    • Trained in assessment techniques
nvlap on site assessment
NVLAP On-site Assessment
  • Assessor resources are on NVLAP website
    • publically available
    • no surprises for lab
  • Laboratories resolve all nonconformities to maintain accreditation
dosimetry accreditation
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
dosimeters
Dosimeters
  • Film
  • TLDs (thermoluminescent dosimeters)
  • OSLs (optically-stimulated luminescence)
  • EPDs (electronic personal dosimeters)
  • Instadose (built-in memory chip)
dosimetry processing
Dosimetry Processing
  • Some dosimeters are not “processed”, but are electronically “read”
  • Processed

Film / TLDs / OSLs

  • Not processed

EPDs / Instadose

nvlap accreditation3
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
nvlap accreditation4
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
summary dosimetry processing accreditation
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
summary dosimetry processing accreditation1
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)
summary dosimetry processing accreditation2
Summary –Dosimetry Processing Accreditation

PLEASE REMEMBER

  • Dosimeters are not accredited.
  • Laboratories are accredited.
contact info
Contact Info –

Betty Ann Sandoval

NIST/NVLAP

http:www.nist.gov/nvlap

301-975-8446

betty.sandoval@nist.gov