This advanced EURACHEM textbook is designed for training, teaching and continuing studies providing an in-depth but easy to understand coverage of Quality Assurance in Chemical Measurement. The CD-ROM accompanying the book contains course materials of 10 experiencedspecialists in the field withmore than 200 overheads (graphics and text) as ready-to-use Powerpoint R documents. The book will serve as an advanced textbook for analytical chemistry students and professionals in industry and service labs and as a reference text and source of course materials for lecturers. TOC:M. Koch: Basic Statistics.-B. Wenclawiak: Glossary (incl. organisations).-B. Wenclawiak: Fit for Purpose.-M. Koch: Quality Manual.-E. Hadjicostas: Validation of Methods.-R. Kraus: ISO 17025-Accreditation.-E. Hadjicostas: ISO 9000-Certification.-M. Valcarcel: Accreditation vs. Certification.-E. Hadjicostas: Good Laboratory Practice.-R. Kraus: Calibration and Detection Limits.- A. Williams: Measurement Uncertainty.-I. Papadakis: Reference Materials.-M. Koch: Control Charts.-M. Koch: Proficiency Testing.- I. Papadakis: Metrology in Chemistry/Traceability.-B. Wenclawiak: QA in Educational Institutions.-E. Hadjicostas: TQM and Cost of Quality.