📋 What is ISO 19880-5?
ISO 19880-5 specifies requirements for hoses and flexible connections used in hydrogen fueling stations. These are critical high-failure-rate components that must withstand 700 bar pressure while preventing hydrogen permeation.
Why Hoses Fail
Hydrogen Permeation
H2 molecules escape through hose materials, creating fire hazards and fuel loss
Pressure Cycling Fatigue
Repeated 0-700 bar cycles cause material degradation and eventual rupture
Rapid Decompression
Fast pressure release can cause explosive hose failure
Temperature Extremes
-40°C to +85°C operation requires flexible materials that resist embrittlement
🔬 Testing Requirements
- Permeation rate measurement - Quantify hydrogen leakage through materials
- Pressure cycling - 10,000+ cycles at 700 bar operational pressure
- Burst pressure testing - Safety margin verification (typically 3×operating pressure)
- Kink resistance - Maintain flow under bend conditions
- Fire resistance - Integrity under external fire exposure
- Temperature cycling - Performance across full operational range
- Abrasion resistance - Durability for frequent connect/disconnect
🏢 ISO 19880-5 Certified Laboratories (0)
No laboratories currently listed. Submit your laboratory