BS 3521-1&2(1962) : AMD 892
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
GLOSSARY OF TERMS RELATING TO OPHTHALMIC LENSES AND SPECTACLE FRAMES - GLOSSARY RELATING TO OPHTHALMIC LENSES. GLOSSARY RELATING TO SPECTACLE FRAMES
30-09-1991
23-11-2012
Covers how to write prescriptions;includes some information on contact lenses.
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