
Optics and optical instruments - Contact lenses - Determination of refractive index of contact lens materials
出版:International Organization for Standardization

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Defines a reference method of testing for determination of therefractive index of contact lens materials. Alternative methods,equal in repeatability and accuracy, may also be used.
UNE EN ISO 9914:1996 - Identical
SS EN ISO 9914 Ed. 1 (1997) - Identical
NS EN ISO 9914 Ed. 1 (1997) - Identical
UNI EN ISO 9914:1997 - Identical
NF EN ISO 9914:1997 - Identical
I.S. EN ISO 9914:1997 - Identical
NBN EN ISO 9914:1996 - Identical
ONORM EN ISO 9914:1997 - Identical
DIN EN ISO 9914 (1997-02) - Identical
BS EN ISO 9914:1997 - Identical
BS 7208-6:1997 - Identical
NEN EN ISO 9914:1996 - Identical
SN EN ISO 9914:1997 - Identical