Accrediation of laboratories: the modular system of assessment

 An accreditation body has to guarantee that the assessment of laboratories follows appropriate and uniform rules. This procedure must be independent of the assessor. The "DACH Deutsche Akkreditierungsstelle Chemie GmbH" has developed such a procedure using the proposal first presented by Eggimann and Morkowski. A procedure is described, where by the quality requirements of the standard EN 45001 are allocated to four modules. The modules and corresponding questionnaire are presented. Received: 30 September 1995 Accepted: 25 October 1995