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Products in conformity with BS EN 1057 are considered suitable for drinking water applications subject to either:
f) methylene blue capacity
BS EN 135 on respiratory protective devices is useful for:
— storage equipment
Pharmaceutical
Characterization of waste. Guidance on selection and application of screening methods Ingestion-build-132972 Products in conformity with BS1 Scope This European Standard gives guidance on the selection and application of screening methods for waste characterisation. The aim of this document is to set up criteria as to when the different kinds of screening methods may be applied for the analysis of a certain parameter in waste and which steps are required to prove their suitability. This document does not recommend any particular screening method, but confirms the principles of its