ISO/IEC General requirements for the competence of for the competence of testing and calibration laboratories, and I would like. We should let ISO be guidance for the users of measuring equipment and let ISO G25//Z be for the calibration labs. ISO/IEC and the relevant requirements for calibration and testing uncertainties of measurement, to calibrate measuring and test equipment, to.

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For dated references, only the edition cited applies.

Difference Between ISO/IEC 17025 and ISO 10012

The Z has been an American National Standard since General requirements for the competence of testing and calibration laboratoriesand I would like guidance on usage and application of these standards. The competence referred to in the title of the standard relates to the competence of the entire system — not just training of personnel.

Organization When a calibration laboratory is part of an organization that performs other functions, both standards require that there be a separation between the additional activities of the organization and the calibration lab.

Internal Audits Procedures for internal audits and review are part of the quality manual requirements of Z Even if the organization chooses to adhere to the requirements of ISOthe certification to ISO does not imply certification to the requirements of ISO General principles and definitions.

Interested parties can agree to use this International Standard as an input for satisfying measurement management system requirements in certification activities.


And detailed records must be maintained through the entire process. Note 2 to entry: And authorization is required for the performance of certain tasks. It addresses such factors as contracts with customers, purchasing, internal auditing, and management review of the entire quality management system — ISO does not.


Measurement Traceability The Z requires traceability of measurements to national standards, international standards, or intrinsic standards that have been compared to other intrinsic standards, particularly those of national labs. No article or discussion of the differences can replace the personal knowledge of the laboratory personnel responsible for implementation of the standards in the organization.

That reaffirmation continues Z for five more years. The requirements appear in normal typeface. Managing the Measurement SystemQuality Progress Discussion related to the importance and timing of equipment calibration.

ISO defines requirements for entire quality management system that can be accredited. An organization, for example, could have a quality management systems that is certified to ISO The details the minimum elements of job descriptions and specifies that the quality manual contain the job descriptions for caljbration technical manager and quality manager for the lab.

The Z also requires statements of traceability on calibration reports. Corrective and Preventive Actions The Z contains a general statement about procedures for corrective actions regarding measurement discrepancies or departures from documented procedures. The states that traceability shall be assured by the use of competent laboratories that demonstrate measurement capability and traceability.


Accrediting bodies are assessing ways to accommodate labs needing compliance calibdation both standards.

ISO – Wikipedia

Some of the sections of the Z are ambiguous and subject to interpretation. One major point is the requirement that laboratories maintain records of original observations with sufficient information to establish an audit trail. You can consider it a system within the quality management system. Organizations have the responsibility to determine the level of controls needed and to specify the measurement management system requirements to calivration applied as part of their overall management system.

Comparison of ANSI/NCSL Z to ISO/IEC

These bodies may be independent or part of a larger organization. Calibration Due Dates The is more stringent than the Z on the placement of calibration due dates on calibration certificates and calibration labels.

In general, the is more prescriptive and has clarified and added to calibratiob ISO Guide 25 requirements upon which the Z Part I is based. ISO is a guidance document and not intended for certification. In the remainder of this article, we outline some of the importance differences between the two major standards. The statement is contained in a list of 21 items that are to be contained in the quality manual.