Historical
ANSI/ISA 12.27.01-2011
Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids
This document provides specific requirements for process sealing between electrical systems and flammable or combustible process fluids where a failure could allow the migration of process fluids directly into the electrical system. This document contains requirements for construction and testing of single seal equipment, dual seal equipment, and add-on secondary seals.
Content Provider
The International Society of Automation [isa]