Nonwoven Materials & Technical Textiles worked example

Filter Efficiency Test Load at 68% target filter pass rate: a worked example

Suppose target filter pass rate falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate filter efficiency test load for nonwoven materials and technical textiles using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.

The inputs for this scenario

  • Filter samples passing efficiency test: 8 count (held at the documented default)
  • Total filter samples tested in lot: 250 count (held at the documented default)
  • Target filter pass rate: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Filter efficiency test load rate = filter efficiency test load count ÷ total filter efficiency test load population × 100.
  • Filter efficiency test load rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
  • Filter efficiency test load gap to target works out to 64.8 points at these inputs.
  • Filter efficiency test load count works out to 8 count at these inputs.
  • Total filter efficiency test load population works out to 250 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target filter pass rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • It computes the percentage of tested filter samples that pass the efficiency specification and the gap in percentage points between that rate and your target. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Filter efficiency test load rate: 3.2 % (headline result)
  • Filter efficiency test load gap to target: 64.8 points
  • Filter efficiency test load count: 8 count
  • Total filter efficiency test load population: 250 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Filter Efficiency Test Load calculator, set target filter pass rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.