Station outlets that operate at a pressure in excess of what PSI shall be either D.I.S.S. or be designed to relieve pressure prior to removal of adapter?

For station outlets that operate at a pressure exceeding 80 PSI, it's crucial that they have specific safety features such as D.I.S.S. (Diameter Index Safety System) or mechanisms designed to relieve pressure before the removal of an adapter. This requirement is in place to enhance safety and prevent the risk of accidental gas release, which could lead to hazardous situations.

Operating at high pressures means there's a greater potential for a gas leak during disconnection if safety measures are not in place. D.I.S.S. fittings are designed to prevent the unintentional cross-connection of gases and to ensure that the correct gas is being used and handled safely. Additionally, pressure relief systems provide an added layer of safety by ensuring that any residual gas pressure is safely released before making any disconnections, protecting both personnel and equipment from potential harm.