ACCREDITATION FOR REFERENCE MATERIALS

Laboratories in the chemical and microbiological areas use reference materials to ensure the traceability of the analyses.

A reference material is a material, which is sufficiently homogenous and stable with regards to one or more properties. It is a certified reference material if the reference material is characterized by having one or more properties are determined with associated uncertainty described in a concomitant certificate.

By analyzing the reference material, the laboratories can ensure that the model of analysis gives correct results.

DANAK accredits to production of referencematerials in accordance with DS/EN IS 17034:2016, General requirements for the competence of reference material producers.

Accreditation to production of reference materials is not yet included in mutual agreements in EA or ILAC, but the basis for a future MLA has been worked out and the final decision will be made at the EA MLA council meeting in april 2019. 

If a laboratory which certifies reference materials also acts as accredited testing or calibration laboratory, assessment of these activities can be done jointly.

DANAK establishes the accreditation area by specifying the matrices/systems and/or parameters/components/quantities that the reference material consists of and/or is attributed to.

RULES AND REGULATIONS:

Below are links or references to documents for the specific scheme.

EXECUTIVE ORDERS

ACCREDITATION STANDARD

  • DS/EN ISO/IEC 17025, 2nd edition. 2005-06-10 General requirements for the competence of testing and calibration laboratories in combination with
  • ISO Guide 34:2009, General requirements for the competence of reference material producers.

ACCREDITATION REGULATIONS

GUIDELINES

In addition to the requirement documents listed above testing laboratories must comply with, a large number of international guidelines relevant for accredited laboratories are implemented through the accreditation regulations:

  • EA-4/02:1999: Expression of the Uncertainty of Measurement in Calibration. Supplement 1 - 2. Examples. Pages 27 - 79.
  • EA-4/14:2003: The Selection and Use of Reference Materials.
  • EA-4/16:2003: EA guidelines on the expression of uncertainty in quantitative testing.
  • EA-4/18:2010: Guidance on the level and frequency of proficiency testing.
  • ILAC G-17:2002: Introducing the Concept of Uncertainty of Measurement in Testing in Association with the Application of the Standard ISO/IEC 17025.
  • ILAC G-24:2007: ILAC Guidelines for the determination of calibration intervals of measuring instruments.

 

ACCREDITATION MESSAGES (ONLY IN DANISH)

1. ACCREDITATION MESSAGES - GENEREL AMF

Various accreditation messages (AML) have been published to guide and describe the assessment practice and issues relevant to laboratories certifying reference materials.

2. ACCREDITATION MESSAGES - LABORATORIES AML

 

Application form

Contact person: Head of section Kirsten M. Rosenberg. Tel: +45 77 33 95 83. E-mail: kmr@danak.dk