Carbon Canister Tests

Carbon Canister Testing Procedures We Conduct:

We can test the capability of the carbon canister to function properly in their environment by using our environmental simulation.  Typical checks include deforming, losing carbon pack integrity, corroding or inhibiting the overall operation of the evaporative or on-board refueling vapor recovery system.  We can mount the carbon canister to a fixture simulating the production installation and port connections.

Some Example Carbon Canister Tests (We Test to All Requirements and Specifications):

  • Testing to all EPA and CARB Specifications
  • Testing to all customer supplied specifications
    • Design Verification (DV) Requirements Testing
    • Production Validation (PV) Requirements Testing
    • Continuing Conformance (CC) Requirements Testing
  • ASTM D-2652, ASTM D323-82
  • Reliability Plan Testing
    • Reliability Predictions Testing
    • Reliability Growth Management
  • Design and Process – Failure Mode and Effect Analysis (FMEA’s)
  • Modeling and Simulation
  • Critical Canister Characteristics
  • Fuel Exposure and Fuel Vapor Exposure
  • Onboard Refueling Vapor Recovery (ORVR)
  • Liquid Test – Gasoline Loading – Load / Purge
  • Carbon Fill Volume
  • Breakthrough
  • Stabilization
  • Canister Refueling – Gasoline Working Capacity Determination
  • Continuous Canister Weight Measurement of Test Sample and Breakthrough Control Sample
  • Test for Resistance to Fluids / Vapors
  • Vapor Test – Load / Purge – including Breakthrough
  • Canister Leakage – Leak Check
  • Carbon Pack Integrity Check
  • Determination of Butane Working Capacity (BWC) of Activated Carbon
    • Federal Butane Working Capacity (FBWC, ASTM 5228-92)
    • Butane Activity
    • Butane Retentivity
  • Environmental Simulation Testing
    • Cold Soak
    • Hot Soak
  • Temperature Study During Loading / Purging
  • Instrumented Canister Bed
  • Temperature of bed monitored during loading and purging process; determine any dead zones in the canister bed
  • Operating Temperature
  • Temperature Cycling Test Procedures
    • Cold Cycle Test Procedure
    • Ambient Cycle Test Procedure
    • Hot Cycle Test Procedure
  • Evaporative Emission Testing / Fuel Permeability Tests
    • Permeation & Diffusion Losses
    • Permeation and Diurnal Breathing Loss (DBL)
    • Diurnal Emissions Test / CARB Diurnal Test
    • We can measure the daily diurnal load (vapor generation), purge volumes, and allowable diurnal losses as specified per customer requirements.
    • Canister Bleed Emissions and Hydrocarbon Bleed Emissions
    • Mini and Mirco SHED CARB / EPA Extended Diurnal Tests
    • Controlled Humidity and Hydrocarbon Levels of Purge Air
  • Canister Pressure Drop
  • Pressure and Vacuum Cycling Procedures
    • Pressure Cycle
    • Vacuum Cycle
  • Vibration Testing (can be combined with Temperature Testing Chambers)
    • We can test the canister to ensure it is capable of withstanding the vibration present on body-mounted components without deformation, cracks, leaks, loss of carbon pack integrity or loosening of attachments such as stone shields or mounting brackets.
    • Measuring Carbon Loss during Vibration Testing
    • Flow Tests – We can maintain flow through canister and capture carbon loss during test.
      We can construct fixture mounting to simulate vehicle position mounting and create custom fixtures that will not interfere with the part resonant modes during vibration testing.
    • Refueling and Vibration Purge Test
    • Vibration Purge
    • Check for Vibration Failure
    • Check Canister Housing Integrity
    • Test Carbon Dust Loss
    • Endurance Test

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