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(a) When the strength, durability, weather- resistance and other qualities of a material necessary to the conditions of its use have not been established by accepted engineering practice, or are in reasonable doubt, tests shall be made as hereinafter provided.
(b) Tests of materials shall also be made where specifically required by the provisions of this Code.
(c) Materials, when required, shall be subjected to sustained and repetitive loading to determine resistance to fatigue, and to tests for durability and weather-resistance when applicable to the use of the material.
(d) When not otherwise required in this Code, the applicable standards and specifications of the American Society for Testing Materials shall be deemed accepted practice in the conduct of tests of materials, assemblies and systems.
(Prior code § 69-5.2)