A decision on the furnace oxygen monitoring should be judged at the north furnace aisle at Cinder Works, where the rule changes an ordinary route, shift or service. Keep contract terms, meter readings and worker testimony beside one another. The current file is the Year fourth, cooling weeks window 1 review, not a permanent settlement of every future case.
The oxygen monitor slips, fan settings and shift handoff notes lists 23 readings with a fan setting and worker location attached; the previous window lists 26. Nazza Wire checked both against public notices checked against the copies households actually received. The difference matters because whether one wall reading describes conditions at each occupied work station.
Managers prefer a single stable monitor. Crew representatives want a location note when the fan setting changes. Those objections deserve a clear answer. They are not a reason to keep an uncheckable rule simply because its wording is familiar.
A useful decision names who will do the work, which count will change and when the result comes back to the public table. In this case, the wall monitor remains active during the ten-minute handoff.
The Year fourth, cooling weeks window 1 file remains open for its scheduled decision. The next review will compare the wall monitor with two hand-held readings.
