This International Standard specifies two methods for determining the suction resistance of hoses, de-pending 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/EN ISO 7233:1995 history
2021DS/EN ISO 7233:2021 Rubber and plastics hoses and hose assemblies – Determination of resistance to vacuum (ISO 7233:2021)
0000 DS/EN ISO 7233:2016
2008DS/EN ISO 7233:2008 Rubber and plastics hoses and hose assemblies - Determination of resistance to vacuum
1995DS/EN ISO 7233:1995 Rubber and plastics hoses and hose assemblies - Determination of suction resistance