Security, Fire & Life Safety Products worked example

Compliance Sample Quantity at 99% expected test-station uptime: a worked example

What does the result look like when expected test-station uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when compliance sample quantity in security, fire and life safety products is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Compliance test samples completed per inspection cycle: 4 units / cycle (unchanged)
  • Available inspection cycles in the period: 480 cycles (unchanged)
  • Expected test-station uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected first-pass compliance yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross compliance sample quantity capacity = compliance sample quantity output per cycle × available compliance sample quantity cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good compliance sample quantity capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross compliance sample quantity capacity.
  • At this operating point the engine returns 19.2 units for compliance sample quantity downtime loss.
  • At this operating point the engine returns 57.02 units for compliance sample quantity yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected test-station uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • A figure at this level is achievable when expected test-station uptime is genuinely sustained, not just peaked for a shift. It models uptime and yield as flat averages; a single long station outage or a bad lot can move actual results well off the calculated figure.

Results at a glance

  • Good compliance sample quantity capacity: 1,844 units (headline result)
  • Gross compliance sample quantity capacity: 1,920 units
  • Compliance sample quantity downtime loss: 19.2 units
  • Compliance sample quantity yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.