Services

High pressure compressed gas fuel systems require rigorous testing to ensure safety and durability in automotive environments.  TesTneT’s services covers testing requirements from many national and international safety standards & regulations.

Hydrogen Gas Cycle Testing

Pneumatic testing with hydrogen gas provides stress factors associated with rapid and simultaneous interior pressure and temperature transitions as well as infusion of hydrogen into the materials.

During a hydrogen gas cycle test, the same conditions of a typical hydrogen refueling station are replicated and many testing cycles are performed to evaluate the durability and performance of the fuel system.

Typical H2 gas cycle testing standards

  • [UNECE R134] UN-GTR No.13: 2010, Clause 5.1.3 “Verification test for expected on-road system performance (pneumatic sequential tests)”
  • EU No. 406: 2010 (EC79: 2009), Clause 4.2.1.4 “Hydrogen Gas Cycling Test”
  • National Standard of the People’s Republic of China – GB/T 35544: 2017, Clause 6.2.12 “Pneumatic Cycle Test”
  • ISO 12619 – Fuel System Components
  • ISO 17268 – Fueling Connection Devices
  • SAE J2601: 2016 Fueling Protocols For Light Duty Gaseous Hydrogen Surface Vehicles
  • Custom testing is possible and available

Component Testing

Several different types of components are typically used in a compressed hydrogen or a compressed natural gas (CNG) fuel system. At TesTneT we are able to offer our customers a variety of testing possibilities and through our years of experience in the building of test benches and set-ups, we have the flexibility to cover most testing specifications.

We specialize in high pressure cycle testing of components built into hydrogen fuel cell stations, vehicles and for other hydrogen fuel purposes. With our many custom testing benches, we are able to subject components to the rigorous testing required by the international standards. Testing can be performed for many different types of components such as:

  • Break-away Devices
  • Check Valves
  • Dispenser Valves
  • On-Tank Valves
  • Fittings
  • Flow Meters
  • Fueling Connectors
  • Hoses
  • H2 Pre-Coolers
  • Pressure Regulators
  • Thermally Triggered Pressure Relief Devices (TRPDs)
  • Nozzles
  • Receptacles
  • Pressure Relief Devices
  • Vent Caps
  • Injectors
  • and many more…

Typical component testing standards

  • ANSI/CSA HPRD 1 – Pressure Relief Devices
  • ANSI/CSA HGV 3.1 – Components
  • ANSI/CSA HGV 4.1 – Dispensing Systems
  • ANSI/CSA HGV 4.2 – Fueling Hoses
  • ANSI/CSA HGV 4.3 – Fueling Parameter Evaluation
  • ANSI/CSA HGV 4.4 – Breakaway Devices
  • ANSI/CSA HGV 4.6 – Manual Valves
  • ANSI/CSA HGV 4.7 – Automatic Valves
  • EU 406-2010 / EC 79-2009
  • ISO 19880-3: 2018 – Valves
  • ISO 19880-5: 2018 – Hoses
  • ISO 17268: 2019 – Connection Devices
  • ISO 17628 – Gaseous Hydrogen Land Vehicle Refuelling Connection Devices
  • SAE J2600 – Compressed Hydrogen Surface Vehicle Fueling Connection Devices
  • ISO 15500: 2015 – Compressed natural gas (CNG) fuel system components
  • ISO 12619: 2014 – Compressed gaseous hydrogen (CGH2) fuel system components
  • UNECE R134 / UN GTR 13 – Hydrogen and Fuel Cell Vehicles Global Technical Regulation No. 13

Destructive Tank Testing

The pressure vessels used to contain high pressure gaseous fuel can have a number of different words used to describe them such as: Cylinders, Containers, Pressure Vessels, Tanks. Depending on the application, there are a number of different service pressures that are used. Here at TesTneT we can provide testing services for all types of tanks, and at many different pressures, such as: 20/25MPa [~2,900/3,600psi] for CNG vehicle systems, 35MPa [~5,000psi] and 70MPa [~10,000psi] for hydrogen vehicle systems.

Typical cylinder testing standards

  • ANSI/CSA HGV 2 – Hydrogen Vehicle Tanks
  • [UNECE R134] UN-GTR No.13: 2010 “Global technical regulator on hydrogen and fuel cell vehicles”
  • EU No. 406: 2010 (EC79: 2009) “Type-Approval of hydrogen powered motor vehicles”
  • ISO 19881: 2018 “Gaseous Hydrogen – Land Vehicle Fuel Containers
  • SAE J2579: 2013 “Standard for Fuel Systems in Fuel Cell and Other Hydrogen Vehicles”
  • ISO 11119-3: 2013 “Gas Cylinders – Refillable Composite Gas Cylinders And Tubes – Design, Construction And Testing – Part 3: Fully Wrapped Fibre Reinforced Composite Gas Cylinders And Tubes Up To 450L With Non-Load-Sharing Metallic Or Non-Metallic Liners”
  • EN 12245: 2009 “Transportable Gas Cylinders – Fully wrapped composite cylinders”

Compressed Natural Gas (CNG) Cycling

During a Compressed Natural Gas (CNG) cycle test, the same conditions of a typical natural gas refueling station are replicated and many testing cycles are performed to test the durability of the fuel system. Pneumatic testing with CNG provides stress factors associated with rapid and simultaneous interior pressure an temperature swings.

Typical CNG Gas Cycle testing standards

  • ANSI/CSA NGV 2: R2012 – Compressed Natural Gas Fuel Containers, Clause 14.23 “Gas Cycling Test”
  • ISO 11439: 2013 – Annex A27: Natural Gas Cycling Test
  • UN-ECE R110 – “Uniform provisions concerning the approval of specific component of motor vehicle using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system”

Hydraulic Cycle Testing

We have several test benches specifically set-up for the hydraulic cycling of cylinders. We can offer testing services for small tanks e.g. for drone applications up to large tanks e.g. for bus and truck applications. We can offer testing at low (-40°C and below) and high (85°C and above) temperatures where both the ambient environment and test fluid is at the desired testing temperature. We also have the ability to induce moist conditions at high temperatures.

Typical cylinder testing standards

  • ANSI/CSA HGV 2 – Hydrogen Vehicle Tanks
  • [UNECE R134] UN-GTR No.13: 2010 “Global technical regulation on hydrogen and fuel cell vehicles”
  • EU No. 406: 2010 (EC79: 2009) “Type-Approval of hydrogen powered motor vehicles”
  • ISO 19881: 2018 – Gaseous Hydrogen – Land Vehicle Fuel Containers
  • SAE J2579: 2013 – Standard for Fuel Systems in Fuel Cell and Other Hydrogen Vehicles
  • ISO 11119: 2012 – Gas Cylinders – Refillable composite gas cylinder and tubes
  • EN 12245: 2009 – Transportable gas cylinders, fully wrapped composite cylinders

Extreme Climate Corrosion

In 2019, we completed our state of the art extreme climate chambers where gas storage tanks and systems can simultaneously be exposed to multiple stress factors including pressure cycles, extreme temperature and corrosion. These long term tests were performed over a minimum of 6 months in 3 different chambers according to PV 1210 and were successfully completed in 2020.

Testing standard

  • PV 1210 – Corrosion Resistance

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