Commentary: biological standardisation in haemostasis and haematology.

This collection of reviews on biological standardisation has been prepared by leading standardisation scientists with a wealth of expertise in the practical problems associated with standardising measurements in the field of haemostasis and haematology. The breadth of areas covered is significant, including coagulation, fibrinolysis, genetic reference materials and anaemia. The topics covered are also extensive and the reviews cover the basic principles and history of standardisation, the science underpinning different approaches to diverse problems and also practical information on how reference materials are developed and eventually established and made available for use in laboratories around the world.