1. According to the standard
GB16897-2010 Brake hose―Structure,performance and test methods 6.3.2 Airtight test; 6.3.3 Length change rate
2. Technical parameters
System pressure (Hydraulic): 0-2.5MPa (Accuracy ≤ ± 1% FS)
System pressure (Air pressure): 0-2MPa (Accuracy ≤ ± 1% FS)
Test channel: 2 channels (Air tightness, length change rate)
Timing range: 0-9999min