Manufacturing
Quality Trends
Every release in the order it was made, against its specification limits.
Releases plotted
260
Across 13 grades
Average colour, initial δe
1.62ΔE
Specification 0.00 to 3.50ΔE · target 1.60ΔE
+0.02 against target
Outside specification
0
Every release inside its limits
Clean run
Process capability, Cpk
1.68
Comfortably inside the limits
σ 0.32ΔE
Colour, initial ΔE by batch, in the order it was made
Red bands are the specification limits, the dashed line is target.
Inside spec Near a limit Out of spec
Nothing outside the limits
Every colour, initial δe release in this run sat inside its specification.
The biggest movement in the run
The largest change from one job to the next.