This International Standard specifies the requirements for textile and steel reinforced rubber hoses and hose assemblies for use with water-based and/or oil-based muds up to a maximum temperature of 82 ? which are pumped at high pressure in large volumes in rotary drilling service and which, when tested according to ISO 2977, have a minimum aniline point of 66 ? This Standard applies to hoses which are suitable for use at ambient temperatures between -20 ?and +52 ?