Information leaflets

Information leaflets

Information leaflets

Investigating poor performance in proficiency testing

Content

Factors affecting PT strategyA laboratory will occasionally have a poor performance in a PT scheme. When this occurs, the laboratory should acknowledge it, carry out an investigation and document a review of possible causes, even if it decides not to take any specific action. This leaflet, prepared by the EURACHEM Proficiency Testing Working Group, gives advice for laboratories on how to best address such events. The leaflet is currently available in English. Further translations will be published when available.

Availability

Translation

Please consult the PT Working Group Chair if you would like to prepare a translation in your own language.

 

*Publication dates are dates of website publication. English version first published on this site on 2020-01-07.

Use of surplus proficiency test items

Content

Factors affecting PT strategyTest items are sometimes available from proficiency testing (PT) providers after the completion of a PT round. The EURACHEM Proficiency Testing Working Group has produced an information leaflet to advise laboratories on benefits and limitations of surplus PT items.help laboratories select the right balance of areas of work and participation frequency. The leaflet is currently available in English. Further translations will be published when available.

Availability*

Translation

Please consult the PT Working Group Chair if you would like to prepare a translation in your own language.

 

*Publication dates are dates of website publication. English version first published on this site on 2019-11-09.

**Updated 2020-03-18 with editorial correction to footer information only

ISO/IEC 17025:2017 - A New Accreditation Standard

Contents

ISO/IEC 17025 - 2005 and 2017 structures compared2017 saw the publication of a new version of ISO/IEC 17025 - General requirements for the competence of testing and calibration laboratories. Among other things, the new Standard has a substantially revised structure, including different management system options. There is a new emphasis on "risks and opportunities", clearer reference to sampling activities, new requirements around conformity assessment and a new emphasis on metrological traceability.

This brief Information Leaflet, prepared by the Eurachem Education and training Working Group,  gives a quick overview of the main changes in the 2017 edition of the Standard.


Availability

The leaflet is available in several different languages:

Translations

Translation into other languages is encouraged for members of Eurachem. Please approach the MU and Traceability WG chair for further information.

Setting Target Measurement Uncertainty

Contents

orange tree trn 180Measurement results are only fit for purpose if the reported uncertainty is correct and has a magnitude small enough for the intended use. The target measurement uncertainty (target MU) is the maximum admissible uncertainty defined for a specific measurement goal. This information leaflet provides a short and accessible introduction to the idea of target measurement uncertainty.

For detailed information on setting a target measurement uncertainty, see the Eurachem/CITAC guide "Setting and Using Target Uncertainty in Chemical Measurement"

Availability

Translations

Translation into other languages is encouraged for members of Eurachem. Please approach the MU and Traceability WG chair for further information.