Walk into any Indian retail outlet, office, or warehouse and you'll find a fire extinguisher mounted somewhere on the wall. Walk into ten of them and you'll find at least three with the wrong type for the hazard, two past their refill date, and one with a torn seal. This guide is for the building owner who wants to fix that — properly.
1. Fire classes: what you're actually fighting
Before picking an extinguisher, classify the fire risk in the space. Indian standards follow the global classification:
| Class | Fuel | Typical Indian settings |
|---|---|---|
| A | Ordinary combustibles — wood, paper, cloth, plastics | Offices, schools, residential blocks |
| B | Flammable liquids — petrol, diesel, oils, paints | Warehouses, fuel storage, garages |
| C | Flammable gases — LPG, methane, hydrogen | Kitchens, industrial gas storage |
| E | Electrical equipment | Server rooms, switchgear, panels |
| F (K) | Cooking oils and fats | Restaurant kitchens, hotel kitchens |
A single space often has multiple classes — a hotel kitchen, for instance, has Class A (wood cabinetry), Class B (oils), Class C (gas pipelines), Class E (electrical), and Class F (cooking fats). You don't buy one extinguisher for that — you mix.
2. Extinguisher types — what to pick, what to skip
ABC dry powder (stored pressure)
Best for: most commercial and industrial spaces. Multi-purpose. Effective against A, B, and C class fires. The most common extinguisher in India and a sensible default for offices, retail, residential, light industrial. Comes in 2, 4, 6, and 9 kg sizes.
Watch-outs: Powder residue is messy. Avoid in clean rooms, server rooms, and food prep zones if you can.
CO₂ (carbon dioxide)
Best for: electrical and small flammable-liquid fires. Leaves no residue. Excellent for switchgear rooms, server rooms, lab equipment, and small hood fires. Comes in 2, 4.5, 6.8, and 9 kg sizes.
Watch-outs: Cooling effect can crack electronic components. Useless for Class A fires beyond initial knock-down. Cylinder is heavy.
Mechanical foam (AFFF / FFFP)
Best for: flammable-liquid storage. Forms a film over the burning liquid, smothering it. Used in fuel depots, oil storage, paint warehouses. Comes typically in 9 L stored-pressure cans.
Watch-outs: Not suited to Class C gas fires. Don't use on energised electrical.
Clean agent (HFC-227ea / FK-5-1-12)
Best for: high-value electronics, archives, art storage. Leaves no residue, non-conductive, non-corrosive. Used for server rooms, control rooms, museums, telecom shelters. Premium price, premium protection.
Watch-outs: Cost. And environmental concerns around some agents — pick FK-5-1-12 over HFC-227ea where you can.
Water-mist
Best for: hospitals, hotels, archives, mixed Class A/E. Tiny droplets that cool and smother. Safe near electrical, leaves minimal residue. Used where ABC powder would damage equipment or harm patients. Comes in 9 L and 25 L modular.
Watch-outs: Newer technology — fewer trained technicians familiar with refill.
Trolley-mounted (large capacity)
Best for: open industrial areas, fuel depots, large warehouses. 25 kg and 50 kg units on wheels for spaces where a hand-held extinguisher is too small. Place at strategic points along yard hydrant loops and near high-risk processes.
3. Sizing — how big, how many?
The National Building Code 2016 Part 4 sets minimums by occupancy, but the practical rule is:
- Office / retail / school: 1 × 4 kg ABC per 600 sq ft, minimum two per floor
- Industrial / warehouse: 1 × 9 kg ABC per 400 sq ft, plus class-specific units per hazard zone
- Kitchen: 1 × Class F / Wet Chemical near every hood, plus 1 × CO₂ near gas connections
- Server room: 1 × Clean Agent or CO₂ per 200 sq ft of equipment floor
- Petrol pump: 1 × 9 L Foam + 1 × 9 kg ABC per dispensing point, plus 25 kg trolley units
Your hazard-class assessment may revise these upwards. Always confirm with NBC 2016 Part 4 clause 3.4 and your state fire act.
4. Placement — what inspectors check
- Mount the handle 1.0 m above the floor (NBC 2016)
- Maximum travel distance to the nearest extinguisher: 22.5 m (15 m for hazardous occupancies)
- Mount on a clearly visible wall — never inside cabinets or behind doors
- Pair every extinguisher with the operating instructions decal in English plus local language
5. Refill cycles — IS 2190
IS 2190 (Indian Standard for selection, installation, and maintenance) prescribes:
| Type | Refill / re-charge cycle |
|---|---|
| ABC powder, stored pressure | Every 3 years (visual / weighing check every 6 months) |
| CO₂ | Every 5 years (weighing every 6 months — if loss > 10%, refill) |
| Foam (AFFF) | Every 2 years (concentrate replaced every 5 years) |
| Clean agent | Per manufacturer specification; typically 5 years |
| Water-mist | Per manufacturer; typically 5 years |
Every extinguisher must carry a refill sticker showing last refill date and next due date. Stickers without these are inspector bait.
6. What to buy — and what not to
Buy from: any supplier whose invoice carries a valid BIS licence number. Avoid: “Make in India” stickers that don't reference IS numbers. “Pump-it-yourself” refill setups in roadside shops. Anything sold by weight without serial numbers.
How AgniPro supplies extinguishers
Every extinguisher we supply is ISI / BIS marked, shipped with a refill sticker, a service tag, and the BIS licence number printed on the invoice. We also recommend, install, and maintain the right mix for your hazard profile — and revisit it every quarter under AMC.
Book a free site visit and our engineer will walk your building with you and recommend the right extinguisher mix.