90.93 Standard confirmed Sep 3, 2026
ISO
ISO/TC 172/SC 4 Telescopic systems
International Standard
37.020 Optical equipment
This document specifies the test methods for the determination of the transmittance of telescopic systems and telescopic observational instruments.
WITHDRAWN
ISO 14490-5:2017
PUBLISHED
ISO 14490-5:2021
90.93
Standard confirmed
Sep 3, 2026