Proposal and test · Line A · Batch mixing

Hold time: no number offered

Hold time 55 to 50 min · optimiser opt 2.4.0 · raised 18 Oct 14:00

Process agent·Line A·Mixer M1·Hold time 55 to 50 min·14:00StayWithheld

Shorter hold looked possible on Grade A-12.

Expected result

ModelledViscosity2450 mPa·s90% interval 2300 to 2620Safety filter failed

Spec 2380 to 2600 mPa·s (dashed). Driven by Hold time.

Why this confidence

Method: Optimiser opt 2.4.0; band from the model of the machine; weakest input modelled
Model fit: Accepted, four checks passed
Safety filter: Failed: Predicted band crosses the upper spec
Evidence: EV-A-1060

Limits

Hold time55 min

4070

Signed by Plant head A. · 9 SeptNow

If stoppedNothing was written.

NoticedProposedWithheld

Test on the model of the machine

Before anything is written

Predicted viscosity

ModelledViscosity2450 mPa·s90% interval 2300 to 2620Safety filter failed

Spec 2380 to 2600 mPa·s (dashed). Driven by Hold time.

Why this confidence

Method: Model Line model A a-2.2; band is the model's 90% interval; no single score is documented for proposals
Model fit: Accepted, four checks passed
Safety filter: Failed: Predicted band crosses the upper spec
Evidence: EV-A-1060

Viscosity, last 12 batches

Check	Result	Detail
Safety filter	Failed	Predicted band crosses the upper spec
Model fit	Accepted	Line model A a-2.2, coverage 81% on 96 held-out points
Weakest input	Modelled	A claim is as strong as its weakest load-bearing input
Inside the window	Yes	Signed 40 to 70 min

Line model A a-2.2

Not accepted

90% interval coverage on 96 held-out points81%

70%85 to 95% accepted100%

Calibrated 17 Oct. Proposals on this line are withheld until all four checks pass. Model fit