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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In the remainder of this article, we outline some of the importance differences between the two major standards. Note 1 to entry: Correctly applied measurement, wherever and however it occurs, is an essential element of a successful business QMS. An organization, for example, could have a quality management systems that is certified to ISO Guidance appears in italic typeface within a box after the appropriate requirement paragraph.

Intermediate measures of the precision of a standard measurement calibrationn.

ISO – Wikipedia

This traceability is established through the laboratory standards in an unbroken chain of calibrations through appropriate primary standards and 10021-1 be made through national measurement standards. The Z has been an American National Standard since The work of preparing International Standards is normally carried out through ISO technical committees. The Z is less emphatic on 100121- point and states that the laboratory must be legally identifiable. Measurement processes should be considered as specific processes aiming to support the quality of the products produced by the organization.


Guidance is for information only and is not to be construed as adding to, limiting, or modifying any requirement.

The requirements appear in normal typeface. For more information on traceability, refer to the NIST website: Management Review An annual management review of the quality system is required by Z It addresses such factors as contracts with customers, purchasing, internal auditing, and management review of the entire quality management system — ISO does not.

While the scope of both documents includes language that can perhaps cause confusion, what follows is the salient text from both that illuminates the difference between the two. For testing services, only the applies.

International organizations, governmental and non-governmental, czlibration liaison with ISO, also take part in the work. Training of personnel shall be documented and kept up-to-date. The details the minimum elements of job descriptions and specifies that the quality manual contain the job descriptions for the technical manager and quality manager for the lab.

The Z requires findings and corrective actions resulting from audits to be documented and that the individual responsible for quality should ensure that corrective actions are completed on time. Even if the organization chooses to adhere to the requirements of ISOthe certification to ISO does not imply certification to the requirements of ISO Qualification for a specific task shall be based on demonstration of the required skills, education, training, and experience.


Organizations have the responsibility to determine the level of controls needed and to specify the measurement caljbration system requirements to be applied as part of their overall management system.


Metrological requirements are usually distinct from, and are not specified in, product requirements.

Job Descriptions The Z requires job descriptions for key personnel and makes reference to job descriptions for other personnel. The io clearer, requiring written procedures for the control of all quality system documents with regards to approval, issue, review, and change.

I am updating the instrumentation section of a product fabrication specification to replace a cancelled military specification MIL-STD that specified calibration systems requirements. The philosophy of the is focused on providing competent measurement services with results that are traceable to appropriate standards.

Introduction An effective measurement management system ensures that measuring equipment and measurement processes are fit for their intended use and is important in achieving product quality objectives and managing the risk of incorrect measurement results.

Managing the Measurement SystemQuality Progress. Laboratories meeting the requirements of the Z do not necessarily meet the requirements of the and some accrediting bodies no longer state accreditation to Z on accreditation certificates.

Difference Between ISO/IEC 17025 and ISO 10012

Thehowever, requires internal audits to cover all the elements of the quality system and that they be planned under the quality manager according to a predetermined schedule. The Z also requires statements of traceability on calibration reports. The Z does not directly address opinions and interpretations.