Environmental Simulation Tests for Fuel-Carrying Plastics Components

6 Environmental Simulation Tests for Fuel-Carrying Plastics Components 

Plastic fuel containers are stored half full of test fuel for 1000 h at 65°C. Test fuels with increased amounts of methanol and ethanol (5, 10, 15 and 20%) are used. Neither containers nor seals used must exhibit any leakage during this time. The containers may be internally loaded during the test at 15 kPa and 30 kPa, respectively. Some containers have to be subjected to a subsequent leakage test. Here, the containers are dipped in 60°C warm water and pressure-tested at 30 kPa internal pressure. If the container is undamaged, it is subsequently emptied. The empty container is then dipped in glycol at -30°C and again pressure-tested at -30°C and 30 kPa internal pressure [515]. 

No loss of mechanical properties No loss of mechanical properties 

No discoioration on biack parts or coior-painted parts 

Littie difference in coior tone or gioss ievei estabiished using a standard sampie 

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