ISO 9342-1:2023
International Standard
Current Edition
·
Approved on
07 July 2023
Optics and optical instruments — Test lenses for calibration of focimeters — Part 1: Reference lenses for focimeters used for measuring spectacle lenses
ISO 9342-1:2023 Files
English
19 Pages
Current Edition
63.76 OMR
ISO 9342-1:2023 Scope
This document specifies requirements for reference lenses for the calibration and verification of focimeters that are used for the measurement of spectacle form lenses, e.g. those complying with ISO 8598-1. It also gives a method for the determination of the back vertex power of the reference lenses.
NOTE It is accepted that other reference lenses can also be used with powers within the given range, manufactured to the same standard of accuracy and form, but different back vertex powers. However, only lenses with integer nominal powers, as described in 4.1, can be used for the calibration of digitally-rounding focimeters.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates

OS GSO 150-2:2013
GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates


OS GSO 2055-1:2015
GSO 2055-1:2015
Omani Standard
HALAL FOOD - Part 1 : General Requirements


GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements

Recently Published
ISO 16408:2025
International Standard
Dentistry — Oral care products — Oral rinses

ISO 16383-1:2025
International Standard
Geotechnical investigation and testing — Laboratory testing of rock — Part 1: Determination of water content

ISO 2361:2025
International Standard
Electrodeposited nickel coatings on magnetic and non-magnetic substrates — Measurement of coating thickness — Magnetic method

ISO/TS 6226:2025
International Standard
Health informatics — Reference architecture for syndromic surveillance systems for infectious diseases
