This International Standard specifies requirements for six types of rubber hose for compressed air as follows:
Type A — Industrial air hose for a maximum working pressure of 1,0 MPa (10 bar).
Type B — Air hose for mining and construction work and maximum working pressure of 1,0 MPa (10 bar).
Type Bl — Air hose for mining, other than coal mining, and construction work, maximum working pressure of 1,0 MPa (10 bar) and having good oil resistance.
Type C — Air hose for mining and construction work and maximum working pressure of 1,6 MPa (16 bar).
Type D — Air hose for mining and construction work and maximum working pressure of 2,5 MPa (25 bar).
Type Dl — Air hose for mining, other than coal mining, and construction work, maximum working pressure of 2,5 MPa (25 bar) and having good oil resistance.
For Type A hoses, the ratios of proof and minimum burst pressures to design working pressure are in accordance with ISO 7751 Service Type No. 3.
For Type B, B1, C, D and D1 hoses the ratios of proof and minimum burst pressures to design working pressure are in accordance with ISO 7751 Service Type No. 4.
SIS SS-ISO 2398:1990 history
1990SIS SS-ISO 2398:1990 Industrial rubber hose for compressed air (up to 2,5 MPa)