The six valid analytical measurement VAM principles

Analytical measurement is of major economic significance with over 10 billion Euros spent annually on chemical analysis in the UK. However, evidence suggests that many analytical measurements are not fit for purpose and that poor quality data represent a major cost and risk to business and society. Consequently, the valid analytical measurement (VAM) programme (Sargent MacKay 1995 Burgess 2000) was set up in the UK by the Laboratory of the Government Chemist. 

Analytical measurements should be made to satisfy an agreed requirement. 

Analytical measurements should be made using methods and equipment which have been tested to ensure that they are fit for the purpose. 

Staff making analytical measurements should be both qualified and competent to undertake the task. 

There should be a regular independent assessment of the technical performance of a laboratory. 

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