Single-Use Bioprocess Assemblies worked example

Leak Test Capacity at 65% leak-test station uptime: a worked example in single-use bioprocess assemblies

Suppose leak-test station uptime falls to 65%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate leak test capacity for single-use bioprocess assemblies using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Assemblies tested per leak-test cycle: 4 units / cycle (held at the documented default)
  • Leak-test cycles available in the period: 480 cycles (held at the documented default)
  • Leak-test station uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Leak-test first-pass yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross leak test capacity = leak test capacity output per cycle × available leak test capacity cycles.
  • Good leak test capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross leak test capacity works out to 1,920 units at these inputs.
  • Leak test capacity downtime loss works out to 672 units at these inputs.
  • Leak test capacity yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where leak-test station uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • It multiplies units per cycle by available cycles for gross capacity, then scales by uptime and first-pass yield to give good tested assemblies. 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

  • Good leak test capacity: 1,211 units (headline result)
  • Gross leak test capacity: 1,920 units
  • Leak test capacity downtime loss: 672 units
  • Leak test capacity yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Leak Test Capacity calculator, set leak-test station uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.