Cleanroom & Contamination Control worked example

Cleanroom Compliance Score with compliance impact severity score of 4 score: a worked example

This worked example runs the cleanroom compliance score numbers for a tougher week than the baseline: compliance impact severity score of 4 score instead of the typical 8 score. Score compliance risk for cleanroom classification, monitoring, pressure cascade, cleaning, gowning, training, and deviation controls.

The inputs for this scenario

  • Compliance impact severity score: 4 score (the input this scenario stresses; the baseline uses 8)
  • Compliance gap occurrence score: 3 score (held at the documented default)
  • Control detection weakness score: 5 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Cleanroom Compliance Score risk score = compliance impact severity score × compliance gap occurrence score × control detection weakness score.
  • Cleanroom Compliance Score risk score works out to 3.9 score at these inputs, and this is the headline figure for the scenario.
  • Compliance impact severity score works out to 4 score at these inputs.
  • Compliance gap occurrence score works out to 3 score at these inputs.
  • Control detection weakness score works out to 5 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where compliance impact severity score sits at 8 score and the headline result is 5.5 score, this scenario comes in 29.09% below the baseline at 3.9 score.
  • Use it when triaging environmental monitoring excursions, gowning or behavior audit findings, particle count trends, or any cleanroom deviation that needs prioritization across an FMEA or risk register. 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

  • Cleanroom Compliance Score risk score: 3.9 score (headline result)
  • Compliance impact severity score: 4 score
  • Compliance gap occurrence score: 3 score
  • Control detection weakness score: 5 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Cleanroom Compliance Score calculator, set compliance impact severity score to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.