Process

Trials and stops

A trial alternates the change with the checked prior configuration on a schedule locked before it starts. Stop restores the prior.

Trials

3 on record

Trials
Trial	Status	Switches	Restore target	Plan	Signed	Verdict
Hold temperature 84 to 86 °C on Grade A-12Hold temperature trial, Line A · Line A	running	9 done, 1 skipped	Hold temperature 84	Measurement plan for the hold temperature trial, Line A	Plant head · 15 Oct	Inconclusive
Hold pressure 700 to 720 bar on Tool T3Hold pressure trial, Line B · Line B	finished	12 done, 0 skipped	Hold pressure 700	Measurement plan for the hold pressure trial, Line B	Plant head · 23 Sept	Improved
Tool temperature 62 to 58 °C on Tool T3Tool temperature trial, Line B · Line B	awaiting signature	None yet	tool-temp 62	Measurement plan for the hold pressure trial, Line B	Waiting for plant head	Withheld

Alternate batches, 16 batches · Ends after batch 2426 or on 29 Oct

B change2410Written

A prior2411Written

B change2412Written

A prior2413Skipped

B change2414Written

A prior2415Written

B change2416Written

A prior2417Written

B change2418Written

A prior2419Written

BPlanned

APlanned

BPlanned

APlanned

BPlanned

APlanned

B: change appliedA: prior configurationShaded amber: switch skipped and recordedGrey: planned

Signer set per plant

Process engineer A.·Line BNeeds a signature

Alternate shift runs, 12 runs. Restores 62 on Stop.

What Stop did

18 Oct 10:00Restored 84 °C for batch 2409; trial resumed next batch after reviewOperator C. · trial, prior restoredrestored
11 Oct 14:00Kept 720 bar, no new writes for 2 hShift lead A. · stay, value keptnot needed

7 OctMeasurement plan for the hold pressure trial, Line Bnext in 24 hholding
14 OctMeasurement plan for the hold pressure trial, Line Bnext in 24 hholding
19 OctMeasurement plan for the hold temperature trial, Line Anext in 3 dinconclusive