ACCREDITATION EXPLAINED

1
ACCREDITATIONEXPLAINED
2
ACCREDITATION
From Clause 5.6 of ISO/IEC 170002004
Conformity assessment Vocabulary and general
principles. third party attestation (5.2)
related to a conformity assessment body (2.5)
conveying formal demonstration of its competence
to carry out specific conformity assessment
tasks From Clause 3.1 of ISO/IEC 170112004
Conformity assessment General requirements for
accreditation bodies accrediting conformity
assessment bodies. third party attestation
related to a conformity assessment body conveying
formal demonstration of its competence to carry
out specific conformity assessment tasks Key
words competent specific tasks
3
SCOPES OF ACCREDITATION (The competent tasks
recognised)

• Usually expressed in various combinations of
• Products (e.g. specific electrical appliances)
• Parameters (e.g. volts, ohms etc)
• Ranges (e.g. -40o to 70oC)
• Accuracy (best measurement capability or
  uncertainty of measurement)
• Type of test (electrical safety tests)
• Test specification (IEC .......)

4
ACCREDITATION (a Harmonised Process)ISO/IEC
170112004

• Common Access and Criteria
• Properly Staffed and Organised
• Appropriate Quality System
• Appropriate Procedures
• Transparent Documentation
• Competent, Trained Assessors
• Surveillance and Reassessment
• Proficiency Testing
• Ethical Use of Accreditation

5
INTERNATIONAL RECOGNITION THROUGH MRAs
The Building Blocks of Confidence
Mutual Evaluation
Harmonised Operation ofAccreditation Programs-
ISO/IEC 17011
Comparable Data - Proficiency Testing
Accreditation Criteria (Defined Scope, ISO/IEC
17025, ISO 15189, ISO/IEC 17020)
6
SUMMARY
The ILAC Accreditation Model provides

• Harmonised approach
• Compliance with internationally agreed criteria
• Demonstrable traceability of measurement
• Resolution of differences
• International recognition (MRAs)
• Independence of judgement
• and, as its basic purpose
• IDENTIFICATION OF TECHNICAL COMPETENCE