This International Standard specifies two methods for deter-mining the vacuum resistance of hoses, depending on bore diameter, as follows:
method A — For hoses of nominal bore diameter up to and including 80 mm
method B — For hoses of nominal bore diameter greater than 80 mm
DS/ISO 7233:1984 history
2021DS/ISO 7233:2021 Rubber and plastics hoses and hose assemblies – Determination of resistance to vacuum
1984DS/ISO 7233:1984 Rubber and plastic hoses and hose assemblies. Vacuum resistance. Methods of test