TURKAK
Türk Akreditasyon Kurumu
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UME
Ulusal Metroloji Enstitüsü
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TSE
Türk Standartları Enstitüsü
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EA
Europan Co-operation for Accreditation
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PTB
Physikalisch- Technischen Bundesanstalt (Germany)
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BIPM
Bureau International des Poids et Mesures (France)
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NIST
National Institute of Standards and Technology (USA)
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NPL
National Physical Laboratory (England)
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ASTM
American Society for Testing and Materials (USA)
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ISO
International Organisation for Standardization
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CEN
European Committee for Standardization (Belgium)
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.....
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