90.20 Standard under periodical review Jul 15, 2026
ISO
ISO/TC 20/SC 6 Standard atmosphere
International Standard
49.020 Aircraft and space vehicles in general
Published
Applies primarily to civil and transport aircraft and specifies the test requirements and various test procedures for aerospace equipment which could be subjected to moisture ingress, frosting and condensation, resulting from the passage through atmospheric conditions of high humidity, in combination with or induced by changing temperature and pressure.
PUBLISHED
ISO 9662:1994
90.20
Standard under periodical review
Jul 15, 2026