NS EN ISO 9914 : 1ED 1997
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 - DETERMINATION OF REFRACTIVE INDEX OF CONTACT LENS MATERIALS
Superseded date
01-12-2006
Published date
12-01-2013
Defines a reference method of testing for determination of the refractive index of contact lens materials. Alternative methods, equal in repeatability and accuracy may also be used. ALSO NUMBERED AS BS 7208 PART 6 1997
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