ASTM D3393-91 (2022) is a standard specification on the waterproof performance of coated fabrics, which is suitable for evaluating the waterproof ability of coated fabrics under specific conditions. The standard specifies methods and requirements for testing the waterproof performance of coated fabrics, including specimen preparation, test equipment and procedures. The test evaluates the waterproof performance of fabrics by simulating actual use conditions (such as hydrostatic or spray testing) to ensure that it can effectively block moisture penetration. The standard also specifies the criteria for determining waterproof performance, which is applicable to outdoor products, protective clothing and Miscellaneous coated fabric products that require waterproof function. Quality control.