5.2.1

If used for structural purposes, materials that are taken from stock by the fabricator shall be of a quality that is at least equal to that required in the ASTM specifications indicated in the contract documents.

5.2.2

Material test reports shall be accepted as sufficient record of the quality of materials taken from stock by the fabricator. The fabricator shall review and retain the material test reports that cover such stock materials. However, the fabricator need not maintain records that identify individual pieces of stock material against individual material test reports, provided the fabricator purchases stock materials that meet the requirements for material grade and quality in the applicable ASTM specifications.

5.2.3

Stock materials that are purchased under no particular specification, under a specification that is less rigorous than the applicable ASTM specifications, or without material test reports or other recognized test reports shall not be used without the approval of the owner's designated representative for design.