This is a product standard for plastic and aluminum foil composite films and bags used in food packaging suitable for high-temperature retort processing. The standard comprehensively specifies the classification, technical requirements, test methods, and inspection rules for such packaging materials. The core focus lies in evaluating the materials' ability to maintain their physical and barrier properties under high-temperature retort conditions. Therefore, the testing instruments involved are extensive and primarily include: intelligent electronic tensile testing machines for measuring tensile strength and peel strength, heat seal testers and hot tack testers for detecting heat seal strength, differential pressure gas permeation analyzers and water vapor transmission rate testing systems for assessing barrier performance, seal integrity testers for evaluating sealing completeness, and gas chromatographs for analyzing solvent residues.