Foam, Insulation & Cushioning Products worked example

Compression Set Test Workload at 35% conditioning, fixture, and retest allowance: a worked example

This scenario runs the compression set test workload calculation on the strong side: 35% conditioning, fixture, and retest allowance, with every other input held at its documented default. Use it for polyurethane, polyethylene, EVA, cushioning, gasket, mattress, or automotive interior foam lots that need compression set or related compression-performance testing.

The inputs for this scenario

  • Compression set specimens to test: 72 specimens (unchanged)
  • Specimens processed per hour: 9 specimens / hr (unchanged)
  • Conditioning, fixture, and retest allowance: 35 % (raised for this scenario; the documented default is 30)

Working through the calculation

  • Applying the documented formula (Base compression set test workload time = compression set specimens to test รท specimens processed per hour) to the inputs above produces each figure below.
  • At this operating point the engine returns 10.8 hr for required compression set test workload time, the number this scenario is built around.
  • At this operating point the engine returns 8 hr for base compression set test workload time.
  • At this operating point the engine returns 35 % for conditioning, fixture, and retest allowance.
  • At this operating point the engine returns 9 specimens / hr for specimens processed per hour.

How this compares with the baseline

  • Against the tool's baseline example, where conditioning, fixture, and retest allowance sits at 30% and the headline result is 10.4 hr, this scenario comes in 3.85% above the baseline at 10.8 hr.
  • Use it when scheduling a compression set test batch, quoting a certification lead time to a customer, or checking whether your lab capacity covers the week's open work orders. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Required compression set test workload time: 10.8 hr (headline result)
  • Base compression set test workload time: 8 hr
  • Conditioning, fixture, and retest allowance: 35 %
  • Specimens processed per hour: 9 specimens / hr

Run it with your numbers

  • Every input above is editable in the live Compression Set Test Workload calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.