Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum
— method A for hoses of nominal size up to and including 80;
— method B for hoses of nominal size greater than 80;
— method C for hoses of all dimensions.
If not otherwise specified in the product standard, method C can be used as an alternative to methods A and B.
Methods A and B can also be used to check the adhesion of the lining to the reinforcement (delamination) in a length of hard-wall hose or hose assembly.