Bioplastics & Biomaterials Processing worked example

Biomaterial Supply Risk with supply disruption severity rating of 3.5 score: a worked example

This worked example runs the biomaterial supply risk numbers for a tougher week than the baseline: supply disruption severity rating of 3.5 score instead of the typical 7 score. Score supply risk for PLA, PHA, PBAT, PBS, starch blends, cellulose materials, fillers, additives, or certified bio-based compounds using severity, occurrence, and detection ratings.

The inputs for this scenario

  • Supply disruption severity rating: 3.5 score (the input this scenario stresses; the baseline uses 7)
  • Supply disruption likelihood rating: 6 score (held at the documented default)
  • Disruption detectability rating: 6 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Biomaterial supply risk score = supply disruption severity score × supply disruption occurrence score × supply risk detection score.
  • Biomaterial supply risk score works out to 5 risk score at these inputs, and this is the headline figure for the scenario.
  • Supply disruption severity score works out to 3.5 score at these inputs.
  • Supply disruption occurrence score works out to 6 score at these inputs.
  • Supply risk detection score works out to 6 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where supply disruption severity rating sits at 7 score and the headline result is 6.4 risk score, this scenario comes in 21.88% below the baseline at 5 risk score.
  • Use it during supplier qualification, annual supply-base review, or whenever a feedstock shock makes you re-rank where your bioplastic risk concentrates. 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

  • Biomaterial supply risk score: 5 risk score (headline result)
  • Supply disruption severity score: 3.5 score
  • Supply disruption occurrence score: 6 score
  • Supply risk detection score: 6 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Biomaterial Supply Risk calculator, set supply disruption severity rating to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.