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Proficiency Testing/Interlaboratory Comparison Tools

The NIST Office of Weights and Measures proficiency testing program is limited in scope to only those calibration laboratories who participate in our U.S. Regional Measurement Assurance Program and conducts proficiency tests only in mass calibration, volume calibration and length (steel tapes and rules) calibration. (Ref. NISTIR 7214, sections 1.0 & 1.6.) In addition to the program publications posted below, you can read more about our program operations in this paper, which was published in the NCSL International, Metrologist, June 2012.

OWM Policy & Quality System

  • "NISTIR 7082" "Proficiency Test Policy Plan"
    Revision Date: January, 2004
    PDF
  • "NISTIR 7214" "Weights and Measures Division Quality Manual For Proficiency Testing and Interlaboratory Comparisons"
    Revision Date: March, 2005
    DOC PDF

Forms (NISTIR 7214)


  1. Form 1: PT/ILC Planning Form
    Revision Date: December 2011
    DOC
  2. Round Robin Aids
    PT/ILC Tool Use Guidance 
    PT/ILC Excel Spreadsheet Template, 1 artifact 50 participant EXCEL
    PT/ILC Excel Spreadsheet Template, 10 artifact 50 participant EXCEL
    PT/ILC Excel Spreadsheet Template, 35 item 50 participant
    EXCEL
    PT/ILC Excel Spreadsheet Template, 35 item 105 participant
    EXCEL
    Guidance for Selection of PT/ILC Reference Values DOC
    Guidance for PT/ILC Report Terminology DOC
    Youden Analysis Template EXCEL
    Ken Fraley, Oklahoma Bureau of Standards
    Calibration Certificate Review Template DOC

  3. Form 2: PT/ILC Reporting Template
    Revision Date: September 2011
    DOC
  4. Form 3: PT/ILC Training & Qualifications
    Revision Date: March 2005
    DOC
  5. Form 4: PT/ILC Feedback & Complaints
    Revision Date: March 2005
    DOC
  6. Form 8: Schedule & Shipping
    Revision Date: March 2005
    DOC