Tag: tester

Petroxy: Oxidation Stability Tester

  1. Standard:
    • ASTM D7525
    • ASTM D7545
    • EN 16091
  2. Test condition
    • 140C
    • 1-2 Hours
    • filling pressure 500-700 kPa (ASTM D 525), final 1000 kPa. Don’t exceed 18 bar
  3. Evaluation
    • Pressure, 10% reach end
    • printed on excel
    • store up to 20 test run
  4. Images
    •  pet
  5. Programs
    • Gasoline
      • Aged in accelerated procedure
      • No purging with oxygen before starting the heat-up (to avoid volatile material escape from vessel)
      • Purge with oxygen once after bringing the sample
      • The heating-up is effected as soon as possible
      • The test is finished when a pressure drop of 10% of maximum pressure detected
    • B0-B100
      • Aged in accelerated procedure
      • Purge with oxygen once after sample in
      • The heating-up is effected as soon as possible
      • The test is finished when a pressure drop of 10% of maximum pressure detected
    • Grease
      • Correspond to B0-B100
      • Temperature was set to 150 C
      • half test time = temperature increased by 10 C
    • User program
      • UserProg1 = GASOLINE
        UserProg2 = B0 – B100
        UserProg3 = GREASE
        UserProg4 = GASOLINE
        UserProg5 = B0 – B100
        UserProg6 = GREASE
  6. Reference