This specification covers aluminum and aluminum alloy flat sheet, coiled sheet, and plate in the alloys and tempers in the following finishes: Plate in all alloys and sheet in heat-treatable alloys which are mill finished; and sheet in non heat-treatable alloys which are mill finished, one-side bright mill finished, standard one-side bright finished, and standard two-sides bright finished. The producer is responsible for the performance of all inspection and test requirements unless specified in the contract. The material shall be supplied in the mill finish and shall be uniform as defined by the requirements of this specification and shall be commercially sound. Each sheet and plate shall be examined to determine conformance to this specification with respect to general quality and identification marking. Sheet and plate shall be capable of being bent cold through a specified angle around a pin without cracking for the different alloys, tempers, and thicknesses. The plates shall exhibit no evidence of stress-corrosion cracking. For lot-acceptance purposes, resistance to exfoliation corrosion for each lot of material in the alloys and tempers shall be established by testing the previously selected tension-test samples to the criteria. The material shall be packaged to provide adequate protection during normal handling and transportation and each package shall contain only one size, alloy, and temper of material unless otherwise agreed.