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ISO/TS 7821:2005
Tobacco and tobacco products - Preparation and constitution of identical samples from the same lot for collaborative studies for the evaluation of test methods
ISO/TS 7821:2005 provides a practical framework for the operations of dividing a lot (not necessarily homogeneous) of tobacco or tobacco products into several similar samples intended for collaborative studies, either within or between laboratories.
International Organization for Standardization [iso]