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ISO 7233 pdf hose assemblies resistance vacumm standard

Date:Jun 20, 2019

BS EN ISO 7233 standard is for Rubber and plastics hoses and hose assemblies with Determination of resistance to vacuum.

13_ISO_7233_rubber_hose_assemblies_test_piece_standard_12

This ISO 7233 document 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.

Methods A and B can also be used to check the adhesion of the lining to the reinforcement (delamination) in a length of hardwall hose or hose assembly.

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