Introduction to Basic Manufacturing Processes and ... - always yours

4. Water Filled Fire Extinguishers
Industrial Safety 49
The soda acid kind is the most common kind of water extinguishers. They are most suitable
for extinguishing fire for type 1. Such fires are resulting from ordinary combustible materials
such as wood cloth and paper.
5. Vaporizing Liquid Type Fire Extinguishers
They may be filled with either carbon tetrachloride (CTC.) or chlorobromethane (CBM) where
as CTC kinds of extinguishers may be of the pump, gas cartridge or stored pressure type. And
CBM may be either gas cartridge or stored pressure. These extinguishers are most effective
against electrical kind of fire (Type 3).
6. Stored Air Pressure Type Extinguishers
In stored air pressure type extinguishers, the container is pressurized with air when the
extinguisher is filled. The extinguisher is trigger operated and operation can be stopped at
any time by releasing the trigger grip. It is suitable for type 1 kind of fire only.
7. Gas Pressure Type Extinguishers
In gas pressure type extinguishers the water is expelled under pressure provided by carbon
dioxide gas released from cartridge filled inside the container. It is suitable for Type 1 kind
of fire.
3.14 FIRST AID
Even after taking all necessary safety precautions and measures, sometimes accidents may
also occur in industries. After major or minor accidents, an injured worker requires immediate
preliminary treatment in the absence of same his condition may become highly critical. To
take care of such situations, industries must employ full time, at least a medical person who
has successfully completed his Red-Cross First-Aid Course, and who can give preliminary
treatment to the injured person. The injured person may later on be shifted safely to the
nearby hospital through the ambulance or otherwise through any vehicle or by other means
as per the availability of mode of transportation. Besides the above service, a first-aid personnel
should take care of those workers or employees who come across injury by minor cuts, burns
or electric shock. The first aid provider should bring the victim in first aid room for further
treatment. In case of fatal injury first aid provider should call the doctor as soon as possible
or to arrange the ambulance for taking the victim to the hospital. He should deal the victim
with full sympathy and make early arrangement to call the family member or some responsible
member so that adequate arrangements can be made in hospital for the due care of the
victim. If breathing has stopped, he or she should be provided artificial respiration immediately.
For first aid services, a first-aid box containing the following items is always kept ready
during working hours in the shops or nearby working places where there are chances accidents
to occur.
Items of a First-Aid Box
Items Name Quantity
(i) Pair of scissors 1
(ii) Large size sterilized dressings 12