ISO 1823:2015 specifies the characteristics of four types of oil suction and discharge hose assemblies used for the conveyance of petroleum, including crude oils and other liquid petroleum products. Each type being divided into three classes depend on the aromatic contents. It is not suitable for liquefied petroleum gas and natural gas. Hose assemblies to ISO 1823:2015 can be used in the temperature range −20 �C to 80 �C. The hoses specified are in the range of nominal size 50 to 500 and can be types of smooth bore, rough bore, armoured rough bore, and light weight.