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BS EN 13891 gives guidance on the selection and use of steel and non-metallic tensional strapping
3 Reproducibility limit
f) Improved governance and assurance
on a replica of the surface (see Annex E)
It is intended to provide a procedure that yields reproducible results and can be used prior to other filter element performance tests
Respiratory therapy equipment - Tubing and connectors PAS 015 BS EN 13891 gives guidance1 Scope This part of EN 13544 specifies requirements for tubing to be used with equipment for the therapeutic administration of respirable gases in domiciliary, ambulance and hospital practice including the interface to the equipment i. e. nipples and screw threaded connectors. This tubing is mainly used with oxygen, air or mixtures of these gases. The interface specifications are given to ensure interchangeability of respiratory therapy equipment