Such systems shall be designed and installed in accordance with the Loss Prevention Council Rules for Automatic Sprinkler Installations (with suitable modification pertinent to Hong Kong ) or other standards acceptable to the Director of Fire Services. "Sprinkler systems" as "A system designed to discharge water under pressure from sprinkler heads (detecting devices) at / or near the point of origin of the fire and to sound an alarm." For the avoidance of doubt, a system is deemed to commence at the point of entry, to the building, of the pipework. The sprinkler systems are designed to deal mainly with solid-fuel fires, but can serve also to hold a flammable-liquid fire in check and to extinguish some oil fires (e.g. transformer oil fires) by deluge sprinklers, by purely using water.  With suitable foam concentrate added to the water, its fire fighting capability on oil fires can be greatly enhanced.

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