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Course Details
Course Title Measurement Uncertainty for HOKLAS Accredited Laboratories based on ISO GUM
Course Code 1117

Class Code Commencing Date Venue Remarks
1117-23 06/12/2019 HK Institute of Vocational Education (Tsing Yi) (20 Tsing Yi Road, Tsing Yi Island, N.T.) Or other campues of VTC
Course Description

This 3-day course is designed to provide participants the knowledge and practical guidelines of uncertainty evaluation in physical measurements. Including master the statistics and calculations involved in estimating uncertainties under different testing conditions and interpret uncertainty of test result correctly. 

Course Content

  • Needs of measurement uncertainty
  • Sources of errors
  • APLAC guidelines on estimation of measurement uncertainty
  • Basic statistics of normal, rectangular, triangular and U-shaped distribution
  • Confidence level and interval
  • Significance figures and rounding
  • ISO GUM principles
  • Applications to measurements
  • Evaluation of measurement uncertainty and reporting


  • Ms Julia M. Y. Lee
    • HOKLAS Lead Assessor
    • HOKLAS Technical Assessor
    • HKIAS Lead Assessor
    • HKCAS Technical Expert
    • Registered IRCA Lead Auditor (QMS)
    • Registered HKICA Lead Auditor (ISO9001)
    • Registered HKICA Lead Auditor (Product certification)
    • HKAS Working Party Member (Accreditation of System Certification Bodies)
    • Qualifications Framework Writer (Units of Competencies on Testing, Inspection & Certification)
    • HKICA Vice President
    • HKCI Executive Board Member
    • Ex-Chairperson in ACML
    • Ex-Accreditation Officer in HKAS
    • More than 19 years experiences in Construction Materials Manufacturing, Auditing, HOKLAS and CNAS Laboratories Set up


  • There will be an assessment in form of written examination at the end of the progamme
  • Certificate of Achievement will be issued to course participant who passed the assessment and has satisfied the attendance requirement
  • Course participant who has satistfied the 70% of attendance requirement only is entitled to a Certificate of Attendance

Time of Classes

  • 3-day (9:00-12:30; 13:30-17:00), duration: 21 hours
  • 6/12 (Fri), 13/12 (Fri) & 27/12/2019 (Fri) [Provisional]



Entry Requirements

This course is recommended for all laboratory managerial and technical personnel, who are actively involved in quality and technical aspects of the laboratory.

Duration 21 hours
Course Fee(Original Price) HK$ 4,500