Sterilization & Sterile Barrier Manufacturing worked example

Lot Release Time at 12% documentation, handling, and cycle-delay allowance: a worked example

What does the result look like when documentation, handling, and cycle-delay allowance reaches 12%? The full calculation is worked below with real intermediate numbers. Use it when lot release time in sterilization and sterile barrier manufacturing is being added to next week's schedule and you need an honest hours estimate.

The inputs for this scenario

  • Sterilized units awaiting lot release: 120 units (unchanged)
  • Release throughput per operator-minute: 12 units / min (unchanged)
  • Documentation, handling, and cycle-delay allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base lot release time = lot release time workload รท lot release time completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required lot release time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base lot release time.
  • At this operating point the engine returns 12 % for lot release time allowance applied.
  • At this operating point the engine returns 12 pieces / min for lot release time completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where documentation, handling, and cycle-delay allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • A figure at this level is achievable when documentation, handling, and cycle-delay allowance is genuinely sustained, not just peaked for a shift. It assumes a steady release rate; it does not model biological-indicator incubation hold time (typically 24-48 hr) or a failed BI that forces requarantine, both of which dwarf the calculated processing time.

Results at a glance

  • Required lot release time: 11.2 hr (headline result)
  • Base lot release time: 10 hr
  • Lot release time allowance applied: 12 %
  • Lot release time completion rate: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live Lot Release Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.