BS EN ISO 11539:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Ophthalmic optics. Contact lenses. Classification and contact lens materials
Hardcopy , PDF
31-10-2006
English
15-11-1999
Covers the procedure for classifying contact lenses together with the materials used for manufacture. It allows the non-proprietary and specific identification, in simplified form, of major chemical components of the material.
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