NF EN ISO 9914

January 1997

Standard Cancelled

Optics and optical instruments. Contact lenses. Determination of refractive index of contact lens materials.

Main informations

Collections

National standards and national normative documents

Publication date

January 1997

Number of pages

8 p.

Reference

NF EN ISO 9914

ICS Codes

11.040.70 Ophthalmic equipment

Classification index

S11-690

Print number

1 - 01/01/1997

International kinship

ISO 9914:1995

European kinship

EN ISO 9914:1996

Standard replaced by (1)

NF EN ISO 18369-4

December 2006

Standard Cancelled

Ophthalmic optics - Contact lenses - Part 4 : physicochemical properties of contact lens materials

Le présent document vise à spécifier les méthodes d'essai des propriétés physicochimiques des matériaux constitutifs des lentilles de contact. Il s'agit, en l'occurrence, de spécifier l'extraction, la flexion et la rupture des lentilles de contact rigides, la perméabilité à l'oxygène, l'indice de réfraction et la teneur en eau.

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