Materials.

CFR · 2024-01-01 · US · Title 14

The suitability and durability of materials used for parts, the failure of which could adversely affect safety, must— (a) Be established on the basis of experience or tests; (b) Meet approved specifications that ensure their having the strength and other properties assumed in the design data; and (c) Take into account the effects of environmental conditions, such as temperature and humidity, expected in service.

official document · source cfr-2024 · id 14:§ 27.603