Chemical Plant Exhaust Material Hold Point

This exhaust is chemical/corrosive. What material, joint method, and drain/slope detail are approved?

I'm checking chemical plant exhaust material hold point at [location]. I found: Normal galvanized duct or generic sealant is used for corrosive/chemical exhaust.. This exhaust is chemical/corrosive. What material, joint method, and drain/slope detail are approved?

Stop if

• Hold point on chemical plant exhaust material hold point: I have the location, photo, drawing/detail/spec/submittal, and what I checked. Who should verify before this gets covered, tested, started, labeled, rerouted, or turned over?

Watch out

• Do not choose duct material by habit
• verify chemical compatibility first.

Check

• room/grid/area
• photo of condition
• current drawing/detail/spec/submittal
• what I already checked
• what decision is needed

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