We have an SET where we extended the emergency vent. The regulator wants us to follow NFPA 30 and test the primary between 3 -5 psi. Currently the AST is 70% full of diesel. I thought the recommended test procedures in NFPA 30 were for empty tanks.
Have to look at 30
The tank should not be tested with air or similar gas
if they want something do a tank tightness test from an approved company.
This is IFC but very similar to NFPA
Codes and Standards | ICC publicACCESS
For lines look at 5703.6.3.1
Will have to to look for tanks
but the line you talk about is open to the tank
Should have asked what is your definition of ast
Is it like at a bulk farm
Or ast that is stand alone for fueling equipment'
Or ast in a con vault type set up?
nfpa 30 2015 edition
18.104.22.168 Air pressure shall not be used to test tanks that contain flammable or combustible liquids or vapors. (See Section 27.7 for testing pressure piping.)
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