Specification for Tanks Using Low Levels of Pressure in the Tanks Interstice (R951)

The Specification for Tanks Using Low Levels of Pressure in the Tanks Interstice (R951) covers the requirements for manufacturing a steel tank using low pressure in the interstice for monitoring.

Topics include:

• Inner Tank Construction
• Outer Tank Construction
• Marking
• Tank Fittings
• Tank Shell
• Tank Heads

This system requires that the tank be double wall construction, and capable of withstanding an interstitial operating pressure in excess of the potential hydrostatic pressure caused by burial.

This specification is only intended for use with systems fabricated under STI quality control. 

Revised: January 2006

Format: PDF