As Per IS:5137:1990

Lining: uniform seamless and extra thick tube of natural/synthetic/blend rubber compund of excellent abraison resistance and free from air blisters, porosity and other defects.

Reinforcement: Plies of rubber impregnated woven textiles or braided high strength natural/synthetic yarns.

Cover: Suitable rubber compund with cloth marked finish, resistant to abrasion and weather.

Electrical Bonding: A strand of copper wire is embedded between the reinforcement plies to provide electrical continuity throughout the length of the hose.

Pressure: W.P. of 10 MPa & min. B.P. 4.0 MPa.

Nom. Bore	Tolerance on Nom. Bore	Min. thk. Of lining	Min. thk. Of cover
MM	MM	MM	MM
25.00	±1.25	6.3	1.5
31.05	±1.25	6.3	1.5
38.00	±1.50	6.3	1.5
50.00	±1.50	6.3	1.5
63.00	±1.50	6.3	1.5
75.00	±2.00	6.3	1.5

Temperature Range: -20°C to +80°C