Ophthalmic optics. Contact lenses and contact lens care products. Determination of preservative uptake and release Ingestion-build-44616 Deletion of reference to Directive

Deletion of reference to Directive 67/548/EEC of 27th June 1967 in order to take into account the latest Regulation in force

This standard does not include requirements related to electromagnetic compatibility

BS EN IEC 60601-2-39 on peritoneal dialysis ME equipment is useful for:

BS EN 12150-2 on thermally toughened soda lime silicate safety glass - evaluation of conformity is useful for:

you can use BS EN 4641-202 best practice guidelines to improve the production of applications involving fibre optic cable

Ophthalmic optics. Contact lenses and contact lens care products. Determination of preservative uptake and release Ingestion-build-44616 Deletion of reference to Directive1 Scope This document provides general procedures for the selection of methods, preparation of samples, and the conduct of testing for the uptake and release of preservatives from contact lenses. NOTE 1 Due to the manifest difficulties of reproducibility when coating contact lenses with mineral and organic deposits encountered during lens wear, these methods are only applicable to new and unused contact lenses. NOTE 2 Preservative depletion by a