Single-Use Bioprocess Assemblies worked example

Scrap Cost at 99% non-recoverable share: a worked example in single-use bioprocess assemblies

Push non-recoverable share up to 99% and the picture changes. This example computes every intermediate figure at that operating point. A fluid-path manufacturer sizing scrap exposure on a gamma-irradiated tubing assembly run before committing to a batch quote.

The inputs for this scenario

  • Assemblies Scrapped: 45 assemblies (unchanged)
  • Built-Up Material Cost: 380 $/assembly (unchanged)
  • Non-Recoverable Share: 99 % (raised for this scenario; the documented default is 92)
  • Disposal & Documentation Fee: 1,200 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Total scrap cost = assemblies scrapped x built-up cost x non-recoverable share + disposal fee) to the inputs above produces each figure below.
  • At this operating point the engine returns 18,129 $ for total scrap cost, the number this scenario is built around.
  • At this operating point the engine returns 403 $ / piece for scrap cost per unit.
  • At this operating point the engine returns 16,929 $ for variable scrap cost.
  • At this operating point the engine returns 1,200 $ for fixed scrap cost adder.

How this compares with the baseline

  • Against the tool's baseline example, where non-recoverable share sits at 92% and the headline result is 16,932 $, this scenario comes in 7.07% above the baseline at 18,129 $.
  • It computes total scrap cost from scrapped assemblies times built-up cost times non-recoverable share, plus a fixed disposal and documentation fee, and breaks out the per-assembly loss. 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 scrap cost: 18,129 $ (headline result)
  • Scrap cost per unit: 403 $ / piece
  • Variable scrap cost: 16,929 $
  • Fixed scrap cost adder: 1,200 $

Run it with your numbers

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

Last reviewed 2026-05-12.