Isolating and Purging [49 CFR 193.2615]

(A)A. Before personnel begin maintenance activities on components handling flammable fluids which are isolated for maintenance, the component must be purged in accordance with a procedure which meets the requirements of "Purging Principles and Practices (incorporated by reference, see LAC 43:XIII.6713)"; unless the maintenance procedures under LAC 43:XIII.7905 provide that the activity can be safely performed without purging. [49 CFR 193.2615(a)]#

(B)B. If the component or maintenance activity provides an ignition source, a technique in addition to isolation valves (such as removing spool pieces or valves and blank flanging the piping, or double block and bleed valving) must be used to ensure that the work area is free of flammable fluids. [49 CFR 193.2615(b)]#

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:551.C.#

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 44:1056 (June 2018).#