GB/T 5325-2024 "Cotton and polyester blended natural color cloth" standard specifies the classification, marking requirements, inspection rules, signs, Encasement, transportation and storage of cotton and polyester blended natural color cloth, and describes the corresponding test and inspection methods. This standard applies to the natural color cloth produced by weaving with combed cotton or carded cotton and polyester blended yarn as raw material. The cited normative documents include quantitative chemical analysis methods for mixtures of cellulose fibers and polyester fibers, fabric tensile performance test methods, and determination of cloth length and width, etc., to ensure that the mass and production process of blended natural color cloth meet uniform standards and requirements.