BS 3424-26 is an international standard that focuses on maintaining the good quality of rubber or plastic-coated fabrics.
BS 3424-26 describes three methods for the determination of the resistance of coated fabrics to water penetration and surface wetting (hydrostatic resistance), two of the methods each having two operational modes. A method for the assessment of the tendency to exhibit surface wetness is recommended as method 29D.
Note: The publications referred to in BS 3424-26 are listed on the inside back page.
BS 3424-26 on a determination of the resistance of coated fabrics to water penetration and surface wetting is useful for:
The method used for the determination of resistance to water penetration or hydrostatic head testing will depend upon the type of coated fabric under test, the end use to which the material will be put, and the pressures to which it is considered most appropriate to subject the material under test.
BS 3424-26 provides four methods that will cater to most foreseeable requirements in terms of the widely divergent coated fabric types encountered in the coated fabrics industry, as to well as taking account of the commercial test equipment available in the industry and the dependency of the coated fabrics industry on the textile industry proper.
BS 3424-26 is the preferred method, using as it does, a large specimen of greater statistical significance. It advises employing as large an area as possible in contact with the water, however, the availability of test equipment, economies of sampling, and the limitations of commercial test equipment should be taken into account.