Standard

NS-EN ISO 9913-1:1998

Withdrawn

Corrigendums and amendments are bought separately.

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Abstract

This part of ISO 9913 describes a polarographic method for the determination of oxygen permeability of contact lens materials and oxygen transmissibility of contact lenses. It specifies the procedures for making the measurements and establishes the conditions under which measurements are made. It is applicable for determining permeability (Dk) in the range 0 to 75 x 10 -11 (cm2/s)[ml O2/(ml*hPa)].

Document information

  • Standard from SN
  • Published:
  • Withdrawn:
  • Edition: 1
  • Version: 1
  • Document type: NAT
  • ICS 11.040.70
  • National Committee CEN/TC 170

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