Request a Quote

Resistance to Fluids

Chemical FOR: Insulation $17,930

Regardless of the particular application on an aircraft, at some point in a wire/cable’s service life, it will become exposed to fluids. These may be fuel, hydraulic fluid, cleaners, deicers, and/or a variety of other fluids. It is critical that the wire/cable insulation is not adversely affected with exposure to these fluids. In particular, the insulation should not swell, crack, shrink, or show any signs of deterioration after fluid exposure. Typical forms of degradation from this test include swelling or softening of insulation materials, delamination of tape wrapped insulation, and reduction in the electrical properties of the insulation.

At the end of the fluid immersion test, the report shall include the percentage diameter change of the specimen and the results of the bend and wet dielectric tests, if applicable to the particular specification.

In this test, a sample is exposed to a variety of fluids. The duration and temperature of the exposure varies and is defined by the test standard.

Procedure

  1. Visually examine the sample for any defects.
  2. Perform a wet dielectric voltage withstand test and remove any failed sections of wire (those sections with insulation breaches).
  3. Cut the samples to required length.
  4. Measure sample diameter.
  5. Submerge sample in test fluids. Temperature and duration defined in standard.
  6. Remove sample from fluid.
  7. Measure sample diameter.
  8. Flex wire on mandrel looking for insulation cracks.
  9. Perform wet dielectric voltage withstand test to identify any insulation breach in sample.
  10. Report results.

Covered specifications

  • AS22759 Method 5.7.7
  • AS23053 Method 5.11
  • AS4373 Method 601
  • AS4373 Method 711-4.5
  • AS6070 Method 5.3.2
  • ASTM D3032 Section 23
  • AS81044 Method 4.7.5.21
  • EIA-364 Method 10
  • EN3475 Method 411
  • FED-STD-228 Method 7021
  • J1128 Method 6.8
  • EN6059 Method 303
  • MIL-DTL-25038J Method 4.6.6
  • MIL-DTL-26482 Method 4.6.27
  • MIL-DTL-32554 Method 4.6.6
  • MIL-DTL-32630 Method 4.7.16
  • MIL-DTL-38999
  • MIL-STD-2223
  • MIL-W-81822 Method 4.6.25
  • ISO 6722 Method 5.17
  • Method 7.30
  • AS23190 revD Method 4.7.5
  • AS5385 Method 5.4.1
  • AS85485 Method 5.16
  • BSS7324 Method 7.31
  • EIA/TIA-455-12A Method 12A
  • EN3745 Method 411
  • ESLU5T-1A263-AA Method 6.07
  • J1127 Method 6.07
  • J1128 Method 6.09
  • J2394 Method 6.4.10
  • MIL-DTL-17 Method 4.8.28
  • MIL-DTL-24643D Method 4.8.26
  • MIL-DTL-3885 Method 4.5.5
  • MIL-DTL-49055G Method 4.7.16
  • MIL-DTL-81381 Method 4.6.4.18
  • MIL-PRF-85045G Method 4.7.6.9
  • MIL-STD-810 Method 512.2
Request a quote