OIML CGPM ISO ILAC International Organization for Legal

표준화 관련 국제기구 법정도량형 측정과학 문서표준 시험소 인정 OIML CGPM ISO ILAC International Organization for Legal Metrology General Conference on Weights & Measures International Organization for Standardization IEC International Lab. Accreditation Conference Technical Committees APLAC Asia Pacific Lab. Accreditation Cooperation 산업자원부 기술표준원 한국산업표준 시험소인정 및 숙련도시험 International Electromechanical Commission 국제기구 국내기구 및 조직 CIML International Committee for Legal Metrology CIPM International Committee on Weights & Measures 산업자원부 기술표준원 표준과학연구원 상거래용 계측기기의 법정 도량형 국가측정표준, 인증표준물질

REGULATORY MRAs Product Certification Accreditation System Quality System Certification VOLUNTARY MRAs Inspection, Testing & Calibration National Measurement System Country A Quality System Certification Inspection, Testing & Calibration International Equivalence (Comparability) National Measurement System Country B The Building Blocks of Mutual Recognition Agreement

MEASUREMENT HIERARCHY SI UNITS National Primary Stds The Meter Convention National Standards Laboratory National Secondary Stds National Standards Laboratory Industry Reference Stds Accredited Calibration Labs Industry Working Stds Material Measures, Measuring Instruments, Reference Materials Accredited Calibration Labs Users

소급성의 개요(Traceability) property of the result of measurement or the value of a standard whereby it can be related to stated references, usually national or international standards, through an unbroken chain of comparisons all having stated uncertainties 명시된 불확도를 갖는 끊어지지 않는 비교의 연결고리를 통하여 명문화된 기준 (통상적으로 국가 또는 국제표준) 과 연결될 수 있는 측정결과 또는 표준값의 특성

소급성(Traceability)의 구성요소) • 소급성은 다음의 몇 가지 필수 요소에 의해 특성화 되어진다. ◆ ◆ ◆ An unbroken chain of comparison Measurement Uncertainty Documentation Competence Reference to SI units Re-calibration

소급성(Traceability)의 구성요소(1) ◆ 끊어지지 않는 비교고리 ; An unbroken chain of comparisons going back to a standard acceptable to the parties, usually a national or international standard ◆ 측정의 불확도 Measurement uncertainty : the measurement uncertainty for each step in the traceability chain must be calculated according to defined methods and must be stated so that an overall uncertainty for the whole chain may be calculated.

소급성(Traceability)의 구성요소(2) ◆ 문서화; Documentation ; each step in the chain must be performed according to documented and generally acknowledged procedures; the results must equally be documented ◆ 자격 Competence; the laboratories or bodies performing one or more steps in the chain must supply evidence for their technical competence (e. g. by demonstrating that they are accredited)

소급성(Traceability)의 구성요소(3) ◆ SI 단위로의 표준 Reference to SI units ; the "appropriate" standards must be primary standards for the realization of the SI units ◆ 재교정; Recalibration ; calibrations must be repeated at appropriate intervals; the length of these intervals depends on a number of variables, (e. g. uncertainty required, frequency of use, way of use, stability of the equipment)