BS ISO 11425:2018 Rubber hoses and hose assemblies for automobile power-steering systems. Specification

Performance testing
Expansion (deformation)
Flexible pipes
Test pressure
Private cars
Strength of materials
Synthetic rubber
Pressure testing
Testing conditions
Steering control devices
Flexibility
Working range
Power (mechanics)
Pressure
Low temperatures
Burst tests
Marking
Pipe fittings
Dimensional changes
Diameter
Ozone
Contamination
Temperature
Adhesive strength
Vulcanized rubber
Test specimens
Chemical-resistance tests
Dimensions
Grades (quality)
Volume measurement

Link: BS ISO 11425:2018 Rubber hoses and hose assemblies for automobile power-steering systems. Specification
Source: BSI Standards