How can we verify a turnkey proposal is truly turnkey?
Check for explicit interface ownership, acceptance criteria tied to production outcomes, and training responsibilities with deadlines. If these are vague, the proposal is procurement support, not turnkey delivery.
What should we demand in commissioning acceptance tests?
Demand repeatable in-spec runs under realistic operating conditions, performed by your team with oversight. Acceptance should prove operational readiness, not only equipment functionality.
Can turnkey include upstream and downstream systems, not just the still?
Yes, and that is often where value is highest. Distillation performance depends on upstream stability and downstream handling, so isolating scope to the still can hide major risk.