1. Bureau International des Poids et Mesures (2011) Joint BIPM, OIML, ILAC and ISO declaration on metrological traceability.
http://www.bipm.org/en/worldwide-metrology/bipm-oiml-ilac-iso_joint_declaration.html
. Accessed 17 Feb 2017
2. CIPM Mutual Recognition Arrangement-CIPM MRA (1999, rev. 2003) Mutual recognition of national measurement standards and of calibration and measurement certificates issued by national metrology institutes.
http://www.bipm.org/en/cipm-mra/cipm-mra-text/
. Accessed 17 Feb 2017
3. International Laboratory Accreditation Cooperation-ILAC (2015) The ILAC Mutual Recognition Arrangement.
http://ilac.org/publications-and-resources/ilac-promotional-brochures/
. Accessed 19 Feb 2017
4. De Nadai F et al (2006) Quality system implementation in a Brazilian university laboratory. Accred Qual Assur 10:594–598
5. Zapata-García D, Llauradó M, Rauret G (2007) Experience of implementing ISO 17025 for the accreditation of a university testing laboratory. Accred Qual Assur 12:317–322