BS 7208-23(2000) : 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
OPTICS AND OPTICAL INSTRUMENTS - CONTACT LENSES - PART 2 - DETERMINATION OF OXYGEN PERMEABILITY AND TRANSMISSIBILITY BY THE COULOMETRIC METHOD
29-09-2006
23-11-2012
Defines a coulometric procedure to determine oxygen permeability of rigid and non-hydrogel flexible contact lens materials and oxyg en transmissibility of rigid and non-hydrogel flexible contact lengses. Describes methods for measurements and defines the conditions in which measurements are taken. Does not apply to hydrogel materials or hydrogel contact lenses.
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