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lab hygiene the need for continuous attention to hygiene in any type of laboratory cannot be overemphasised any spillage of chemicals battery acid
personal sensitivity there are other dangers from substances which are not so common eg mutagens but one aspect we have not mentioned involves you
personal safety you would recall that there are mainly three routes through which the harmful substances can enter the human body these are direct
hygiene we all would agree that chemical hazards can be prevented to a certain extent by maintaining a good hygiene hygiene in this context can be
transfer from large containers as with all dangerous operations it will pay you to think what the worst possible accident may be that could result
transport of bulk chemicals ideally only sufficient concentrated acids flammable solvents and other hazardous chemicals should be kept in the
explosives as defined earlier explosives release a large amount of gas and energy in a very short time these are of four basic typesmixed gases -
poisons it is essential that all dangerous substances such as cyanides are always kept under strict control steps to ensure such control are as
storage of chemicals you have read about the stores as important structures of all the labs in previously storage of chemicals whether in small
handling of chemicals laboratory technicians who work in laboratories need to be aware of the potential danger of the substances they handle in the
corrosive substances these substances cause severe damage by chemical action when in contact with living tissue or in case of leakage destroy damage
poisonous and infectious substances these are the substances liable to cause death or serious injuries to health if swallowed or inhaled or allowed
oxidising substances it includes oxidising substances and the organic peroxides oxidising substances are by themselves not combustible but by
flammable solids flammable solids are substances which are flammable or liable to spontaneous combustion or emit flammable gases on contact with
flammable liquids previously the word flammable has the same meaning as inflammable flammable liquids are those liquids or mixtures of liquids or
gases critical temperature is the a substance which has a critical temperature below 50degc has a vapour temperature above which pressure of more
explosives these include the commercial explosives preparations and substances used as blasting agents ammunition fireworks etc some examples are
hazard identification each united nations hazard class with the exception of class 9 has a distinctive diamond shaped label bearing a pictogram for
classification of hazardous chemicals the classification of chemical hazards as recommended by the un committee of experts on the transport of
storage and handling of chemical substances are two important duties of a laboratory worker both of these require appropriate safety measures to
chemical hazards chemicals are present in all laboratories it is good to consider all chemicals toxic and flammable unless one has definite
microwaves the microwave region of the electromagnetic spectrum is increasingly used for a variety of purposes for example for rapid heating the
precautions the following must always be observed while dealing with lasers1 never look along a laser beam or expose any part of your skin to it
lasers laser light is an extremely intense form of electromagentic radiation and its name is acronym for light amplification by stimulated emission
precautions the following precautions should be taken while using uv lamps1 tjv lamps must always be properly shielded2wear approved goggles when