OISD 116

OISD 116 (OISD-STD-116) is the Oil Industry Safety Directorate standard titled 'Fire Protection Facilities for Petroleum Refineries and Oil/Gas Processing Plants'. It defines the fire protection philosophy and design criteria for refineries and gas processing plants in India: fire water systems (storage, pumps, ring main, hydrants, monitors) and foam systems for tank and dyke protection, including LPG facilities located inside refinery premises.

OISD 116 covers fire protection facilities at petroleum refineries and oil or gas processing plants, including LPG storage, handling, and bottling located within those premises. It covers fire protection philosophy, design criteria, fire water systems (storage capacity, pumps, distribution, equipment), and foam systems for storage tanks and dyke or spill areas. It does not cover standalone depots, terminals, lube blending plants, pipeline installations, or standalone LPG bottling plants.

The difference is the installation type. OISD 116 applies to fire protection at petroleum refineries and oil or gas processing plants, including LPG inside those premises. OISD-STD-117 applies to fire protection at petroleum installations outside refinery premises, such as depots, terminals, and pipeline installations. Standalone LPG bottling plants fall under OISD-STD-144, and small LPG bottling plants under OISD-STD-169. Citing the wrong one at FEED means designing to the wrong fire-water and foam criteria.

OISD 116 governs fire protection facilities; OISD 118 governs layout and inter-distance. OISD 118 fixes how far tanks sit from each other, from equipment, and from the boundary. OISD 116 fixes the fire water capacity, hydrant and monitor coverage, and foam application that protect them. They are complementary and are audited together on tank-farm scope, a layout change under OISD 118 forces an OISD 116 fire-water and foam recalculation. See the OISD 118 standard.

The 2025 edition widens scope to petrochemical complexes and clarifies rules for tank farms and LPG or hydrogen facilities. It adds requirements for High Volume Long Range (HVLR) monitors, cryogenic facilities, coal handling, sprinkler systems, water curtains, and automatic protection systems. Plants whose fire protection scheme was designed to an earlier edition should run a gap assessment against the current edition ahead of the next OISD audit.

In practice, yes. OISD standards are self-regulatory in form but are enforced through the MoPNG and PNGRB audit regime, and OISD 116 is the reference the auditor uses for fire protection facilities at refineries and gas processing plants. Indian PSU refineries (IOCL, BPCL, HPCL, ONGC) and private refiners design and re-verify their fire protection schemes to OISD 116 across the 2-3 year audit cycle.

OISD 116 compliance is a documentation problem: the fire water network P&IDs, hydrant and monitor schedule, pump datasheets, and tank list must agree with each other and with the current layout. Pathnovo extracts the fire-water network and safety-device tags from your P&IDs into a structured register, cross-checks it against the tank list and foam scheme, and flags drift between as-built and design basis. The same extracted register serves the OISD 118 inter-distance check, since both standards are audited together. See the OISD 118 compliance software.