portable fire extinguisher, water type (gas cartridge)
Principle and design The extinguisher shall be upright type, thus operated by holding the extinguisher upright and piercing the gas cartridge by applying pressure on plunger or by pressing the squeeze grip thereby discharging the contents. Capacity The capacity of water type extinguisher should be filled to the specified level indicated in exterior of the body shall be 9.0 ± 0.5 litre. Shape The shape of the body shall be cylindrical with an outside diameter of 175 ± 5 mm. Construction A cylindrical skirt having minimum 25 mm height shall be welded to the bottom dish. Where carrying handle and/or supporting fittings are fitted to the body, these shall be either welded or brazed. The carrying handle shall be made of mild steel or stainless steel rod not less than 6 mm in diameter or fabricated out of mild steel or stainless steel sheets of same thickness as the body and the clamp shall be of mild steel or stainless steel thickness of 3 mm, minimum. The thickness of the shell shall be c