Advanced Technical Ceramics worked example

Green Body Scrap Rate at 3.45% allowed green scrap rate: a worked example

Push allowed green scrap rate up to 3.45% and the picture changes. This example computes every intermediate figure at that operating point. a process engineer needs to quantify unfired scrap before sending a batch of technical ceramic parts to the kiln

The inputs for this scenario

  • Rejected green bodies: 38 green parts (unchanged)
  • Total green bodies inspected: 850 green parts (unchanged)
  • Allowed green scrap rate: 3.45 % (raised for this scenario; the documented default is 3)

Working through the calculation

  • Applying the documented formula (Green body scrap rate = rejected green bodies ÷ total green bodies inspected × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 4.47 % green scrap for green body scrap rate, the number this scenario is built around.
  • At this operating point the engine returns -1.02 percentage points for scrap gap to allowance.
  • At this operating point the engine returns 38 green parts for rejected green bodies.
  • At this operating point the engine returns 850 green parts for total green bodies inspected.

How this compares with the baseline

  • Against the tool's baseline example, where allowed green scrap rate sits at 3% and the headline result is 4.47 % green scrap, this scenario lands almost exactly on the baseline at 4.47 % green scrap.
  • It computes the share of inspected green bodies that were rejected and the gap between that rate and your allowed green scrap target. 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

  • Green body scrap rate: 4.47 % green scrap (headline result)
  • Scrap gap to allowance: -1.02 percentage points
  • Rejected green bodies: 38 green parts
  • Total green bodies inspected: 850 green parts

Run it with your numbers

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

Last reviewed 2026-05-12.