Standard

NS-EN ISO 8598:1998

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Omfang

This International Standard specifies requirements for continuously indicating focimeters and digitally rounding focimeters with wich the vertex powers and prismatic powers of spherical and astigmatic lenses, including lenses mounted in frames and contact lenses, can be measured and with wich lenses can be orientated and marked. NOTE 1 For the measurement of vertex powers of contact lenses, see ISO 9337: -1), Optics and optical instruments - Contact lenses - Determination of back vertex power. 1) To be published.

Dokumentinformasjon

  • Standard fra SN
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 1
  • Versjon: 1
  • Varetype: NAT
  • ICS 11.040.70
  • National Committee CEN/TC 170

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