Personal Care, Cosmetics & Household Products worked example

Stability Sample Workload at 35% logging and chamber-loading allowance: a worked example

Push logging and chamber-loading allowance up to 35% and the picture changes. This example computes every intermediate figure at that operating point. Use it to plan R&D or QC lab hours for a stability study pull and check it fits the shift.

The inputs for this scenario

  • Stability samples to pull and prep: 60 samples (unchanged)
  • Sample prep rate: 1.5 samples / min (unchanged)
  • Logging and chamber-loading allowance: 35 % (raised for this scenario; the documented default is 30)

Working through the calculation

  • Applying the documented formula (Base prep time = stability samples to pull and prep รท sample prep rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 54 hr for total stability sample workload, the number this scenario is built around.
  • At this operating point the engine returns 40 hr for base prep time.
  • At this operating point the engine returns 35 % for logging and chamber-loading allowance.
  • At this operating point the engine returns 1.5 pieces / min for sample prep rate.

How this compares with the baseline

  • Against the tool's baseline example, where logging and chamber-loading allowance sits at 30% and the headline result is 52 hr, this scenario comes in 3.85% above the baseline at 54 hr.
  • It estimates total stability sample workload by dividing the number of samples to pull and prep by the prep rate, then inflating by a logging and chamber-loading allowance. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Total stability sample workload: 54 hr (headline result)
  • Base prep time: 40 hr
  • Logging and chamber-loading allowance: 35 %
  • Sample prep rate: 1.5 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.