Proposal and test · Line A · Batch mixing

Hold temperature: 84 to 86 °C

Hold temperature 84 to 86 °C · optimiser opt 2.4.0 · raised 14 Oct 14:00

Process agent·Line A·Jacket loop·Hold temperature 84 to 86 °C·14:00TrialRunning trial

Batches held at 86 °C reached target viscosity 6 minutes sooner in the model of the mixer, inside the narrowed band.

Expected result

ModelledViscosity2470 mPa·s90% interval 2410 to 2540

Spec 2380 to 2600 mPa·s (dashed). Driven by Hold temperature, Hold time, Charge mass.

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: Passed: Inside narrowed band 80 to 90 °C
Evidence: EV-A-1102, EV-A-1120

Limits

Hold temperature84 °Cto 86 °C

7880 to 90 narrowed92

Signed by Plant head A. · 9 SeptStamped narrowingNowProposed

If stoppedStop restores the checked prior value, 84 °C, from the next batch. If restore fails the line goes recommend-only.

DecidedPlant head A. · 15 Oct 14:00

NoticedProposedWaitingtrialMeasuringVerdictHolding

Test on the model of the machine

Before anything is written

Predicted viscosity

ModelledViscosity2470 mPa·s90% interval 2410 to 2540

Spec 2380 to 2600 mPa·s (dashed). Driven by Hold temperature, Hold time, Charge mass.

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: Passed: Inside narrowed band 80 to 90 °C
Evidence: EV-A-1102, EV-A-1120

Viscosity, last 12 batches

Check	Result	Detail
Safety filter	Passed	Inside narrowed band 80 to 90 °C
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 78 to 92 °C, narrowed 80 to 90

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