This International Standard specifies three methods for determining the resistance to vacuum of hoses and hose assemblies manufactured from plastic or rubber.Applicable dimensions of hoses for each method are as follows:---method A---for hoses of nominal bore up to and including 80 mm;---method B---for hoses of nominal bore greater than 80 mm.---method C----for hoses of all dimensions.
EN ISO 7233:2008 history
2021EN ISO 7233:2021 Rubber and plastics hoses and hose assemblies - Determination of resistance to vacuum (ISO 7233:2021)
2016EN ISO 7233:2016 Rubber and plastics hoses and hose assemblies - Determination of resistance to vacuum
2008EN ISO 7233:2008 Rubber and plastics hoses and hose assemblies - Determination of resistance to vacuum
1995EN ISO 7233:1995 Rubber and Plastics Hoses and Hose Assemblies - Determination of Suction Resistance (ISO 7233 : 1991)