Alcance
ISO 4641:2016 specifies the minimum requirements for textile-reinforced, smooth-bore rubber water-suction and discharge hoses and hose assemblies.Three types of hoses and hose assemblies are specified according to their operating duty requirements, i.e. their ambient and water temperature ranges:- ambient temperatures: −25 �C to +70 �C;- water temperatures during operation: 0 �C to +70 �C.