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National Institute of Metrology (Thailand) Gas Metrology

National Institute of Metrology (Thailand) Gas Metrology. Traceability system in Thailand. Definition. Primary Reference Materials (PRM) are prepared gravimetrically by national standards institutes using guideline ISO 6142.

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National Institute of Metrology (Thailand) Gas Metrology

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  1. National Institute of Metrology (Thailand)Gas Metrology Traceability system in Thailand

  2. Definition Primary Reference Materials (PRM) are prepared gravimetrically by national standards institutes using guideline ISO 6142 • Certified Reference Materials (CRM) are prepared in compliance with ISO guidelines and a certified by that national standards laboratory or an accredited laboratory using guideline ISO 6143 Working Reference Materials (WRM) are certified according to guideline ISO 6143

  3. Traceability Route for Certified Gas Reference

  4. Traceability of Special Gases Traceability of special gases is necessary if these standards are applied to analyzer and/or methods. By applying standards which are directly traceable to primary gases, quality increases; measurements performed in different laboratories or at different moments are more comparable.

  5. Main Responsibility SI unit Standard Level High Purity Gas National Institute of Metrology (Thailand) (PRM) Primary Reference Material National Standard Accreditation Laboratory or Thai Gas Companies Secondary Standard (CRM) Certified Reference Material Working Standard (WRM) Working Reference Material Thai Gas Companies or End-Users Measuring Instruments Traceability scheme on Gas Metrology in Thailand (Goal)

  6. Traceability Route for Calibration of Gas Analyzer

  7. Main Responsibility SI unit Standard Level High Purity Gas National Institute of Metrology (Thailand) (PRM) Primary Reference Material National Standard Accreditation Laboratory Secondary Standard Certified Reference Material & Analyzer Calibration Working Standard Working Reference Material & Analyzer Calibration End-Users Measuring Instruments Traceability scheme on Calibration(Goal)

  8. Quality Systems that need to be fulfilled according to Gas Analysis Laboratory • Quality System ISO/IEC 17025:2005 • Gas Analysis Production according to ISO 6142 and ISO 6143 • Production of Reference Material according to ISO Guide 34

  9. CO Analyzer O2 Analyzer CRM CRM PRM WRM Certified Standard Gas High Accuracy Low Accuracy Uncertainty : within ± 1% Uncertainty : ± 1%~ 2%

  10. O2 Analyzer CO Analyzer N2 99.995% WRM Uncertainty : ± 1%~ 2% Accreditation ScopeFor Certify and Calibration • O2 and CO Analyzers • O2 in N2 and CO in N2

  11. CERI’s reference gas mixtures (NIMT primary reference gas mixtures) Gas analyzer of NIMT Calibration gas mixture of customer NIMT secondary Test or calibration Gas analyzer of customer

  12. Future Plan • Support the need of the CRM for Thai customer • Increase the number and concentration range of CRM • Proficiency Testing • Training Course to certify gas RM • Secondary Lab. or gas Users • Training course to calibrate gas analyzers • Secondary Lab. or gas Users

  13. O2 in Nitrogen CO2 in Nitrogen GAS Reference Materials Plan to produce in 2010 Plan to produce in 2011 Plan to produce in 2012 • SO2 in Nitrogen • NOx in Nitrogen

  14. Thai-User Aim of Gas Metrology in Thailand • Understand in Gas Metrology • Understand in Traceability in Gas Metrology • Understand in Measurement Uncertainty • Be able to use appropriate RMs/CRMs Product’s Quality follow to a customer’s or the standard requirement

  15. Gas Analysis Laboratory

  16. Preparing RM Section Weighing System Filling System

  17. GC : TCD, FID O2 Analyzer Micro GC SO2 Analyzer FT-IR ND-IR Analyzer (SO2 and NO Analyzer) NOx Analyzer CO Analyzer Gas Analysis Section

  18. Activities in 2008

  19. O2 Analyzer CO Analyzer Calibration, Certification and Training • Certified Reference Materials • CO in N2 • O2 in N2 • Calibration Services • CO Analyzer • O2 Analyzer • Training Course • Planning to open in 2011

  20. Recent Activities • Working on the research for preparing O2 in N2 by the gravimetric method • Cooperate with NMi VSL for training in Gas Metrology at NMi VSL facilities (January to March 2009) • Cooperate with NMIJ for training in preparing by gravimetric method • At NIMT facilities (December 2008) • At NMIJ facilities (June 2009)

  21. ND-IR Analyzer (SO2 and NO Analyzer) NOx Analyzer Present Research • Preparation of Reference Materials (Gravimetric method) • Gas mixtures of O2 in N2 • Gas Analysis • SO2 in N2 ( ND-IR Analyzer) • NOxin N2 (Chemiluminescence Analyzer)

  22. Thank you for your attention

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