Personal Care, Cosmetics & Household Products worked example

Stability Sample Workload at 22% logging and chamber-loading allowance: a worked example

This worked example runs the stability sample workload numbers for a tougher week than the baseline: 22% logging and chamber-loading allowance instead of the typical 30%. Estimate the lab time to pull and prepare stability samples from the sample count, prep rate, and a logging and chamber-loading allowance.

The inputs for this scenario

  • Stability samples to pull and prep: 60 samples (held at the documented default)
  • Sample prep rate: 1.5 samples / min (held at the documented default)
  • Logging and chamber-loading allowance: 22 % (the input this scenario stresses; the baseline uses 30)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base prep time = stability samples to pull and prep รท sample prep rate.
  • Total stability sample workload works out to 48.8 hr at these inputs, and this is the headline figure for the scenario.
  • Base prep time works out to 40 hr at these inputs.
  • Logging and chamber-loading allowance works out to 22 % at these inputs.
  • Sample prep rate works out to 1.5 pieces / min at these inputs.

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 6.15% below the baseline at 48.8 hr.
  • Use it when staffing a stability program, planning a launch wave, or checking whether a timepoint's pulls fit available bench hours. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total stability sample workload: 48.8 hr (headline result)
  • Base prep time: 40 hr
  • Logging and chamber-loading allowance: 22 %
  • Sample prep rate: 1.5 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Stability Sample Workload calculator, set logging and chamber-loading allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.