Transcript Document

National Institute of Metrology (Thailand)
Gas Metrology
Traceability system in Thailand
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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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
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Traceability Route
for Certified Gas Reference
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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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.
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Traceability scheme on Gas Metrology in
Thailand
(Goal)
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High
Purity Gas
National Standard
National Institute of Metrology
(Thailand)
(PRM)
Primary Reference Material
Secondary Standard
(CRM)
Certified Reference Material
Working Standard
(WRM)
Working Reference Material
Accreditation Laboratory
or
Thai Gas Companies
Thai Gas Companies
or
End-Users
Measuring Instruments
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Traceability Route for
Calibration of Gas Analyzer
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Traceability scheme on Calibration
(Goal)
M
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SI unit
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High
Purity Gas
National Standard
National Institute of Metrology
(Thailand)
(PRM)
Primary Reference Material
Secondary Standard
Certified Reference Material
& Analyzer Calibration
Working Standard
Working Reference Material
& Analyzer Calibration
Accreditation Laboratory
Measuring Instruments
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
End-Users
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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
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Certified Standard Gas
High Accuracy
Low Accuracy
CO Analyzer
Uncertainty : within ± 1%
WRM
CRM
CRM
PRM
O2 Analyzer
Uncertainty : ± 1%~ 2%
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Accreditation Scope
For Certify and Calibration
CO Analyzer
O2 Analyzer
WRM
 O2 in N2 and CO in N2
N2 99.995%
 O2 and CO Analyzers
Uncertainty : ± 1%~ 2%
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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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
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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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
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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GAS Reference Materials
Plan to produce in 2010
• O2 in Nitrogen
Plan to produce in 2011
• CO2 in Nitrogen
Plan to produce in 2012
• SO2 in Nitrogen
• NOx in Nitrogen
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Aim of Gas Metrology in Thailand
Thai-User
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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
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Gas Analysis Laboratory
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Preparing RM Section
Weighing System
Filling System
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Gas Analysis Section
GC : TCD, FID
Micro GC
CO Analyzer
NOx Analyzer
ND-IR Analyzer
FT-IR
SO2 Analyzer
O2 Analyzer
(SO2 and NO Analyzer)
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Activities in 2008
Inter Comparison
Status
1.
CCQM- K51 – Carbon Monoxide in Nitrogen
Draft A
2.
Bilateral Comparison Oxygen in Nitrogen
Draft A
Calibration and Certify Working Standard Gas Service Start
1.
Carbon Monoxide in Nitrogen up to 100 ppm
March
2.
Oxygen in Nitrogen up to 25 %
March
3.
Carbon Monoxide Analyzer
March
4.
Oxygen Analyzer
March
Accreditation ISO/IEC 17025 (2005)
Start
1.
Carbon Monoxide in Nitrogen up to 100 ppm
August
2.
Oxygen in Nitrogen up to 25 %
August
3.
Carbon Monoxide Analyzer
August
4.
Oxygen Analyzer
August
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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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
CO Analyzer
O2 Analyzer
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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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)
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Present Research
Preparation of Reference Materials
(Gravimetric method)
 Gas mixtures of O2 in N2
 Gas Analysis
 SO2 in N2 ( ND-IR Analyzer)
 NOx in N2 (Chemiluminescence Analyzer)
ND-IR Analyzer
NOx Analyzer
(SO2 and NO Analyzer)
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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Thank you for your attention
Chemical Metrology and Biometry Department, National Institute of Metrology (Thailand)
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