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treatment of the spillage site after removal of the bulk of the wastein order to remove the final traces of the spillage any one of the following
for all other wastesi burialthe spillage could be buried using any of the following methodsthe spillage could be mixed with sand and buried
for chemically reactive wastes the chemical property of the waste could be used in its removal in a number of ways as given belowi some
for water immiscibleinsoluble liquidsolid wastes which can be emulsifiedthe spillage of water immiscibleinsoluble liquidsolid could be scrubbed with
for moderately volatile liquid wastes spillage of moderately volatile liquids could be absorbed on sand shovelled into buckets and transported to a
for highly volatile liquid wasteshighly volatile liquid waste could be disposed of by effective ventilation until the liquid completely evaporates
for water solublemiscible solid and liquid wastesthe familiar method of mopping the waste with plenty of water and running the same into the drainage
disposal of chemical wastes we shall deal with some commonly occurring chemical wastes if you need to know more details covering the disposal of a
disposal of unserviceable and obsolete items every institution may have evolved its own procedure for the same generally the following procedure is
disposal of waste materials in a school or college science laboratory chemical wastes broken glassware unserviceable non consumable items obsolete
aprons additional protection such as a rubber apron is recommended for work with appreciable amounts of chromic acid hydrofluoric acid and other
gloves gloves should be worn when transferring toxic radioactive and carcinogenic compounds irritants and corrosive liquids the practice of wearing
safety spectacles safety spectacles need to be used where there is the slightest risk of splashes of chemicals or fragments of dust glass etc
lab coats the lab coat should fit well and should be buttoned up correctly at all times cotton lab coats are more suitable than those made from
personal protective devices we shall now discuss the details of protective devices required for safety in a laboratory the aim of protective devices
code of practice in a laboratorythe following is a set of rules you should follow while working in a laboratory1 always wear the required protective
need for code of behaviour a laboratory is a potentially dangerous working environment cuts from broken glass chemical or thermal burns and
obligations of the teachers and the head of the institution towards maintaining laboratory safetysafety in laboratory work is the collective
objectives after studying this unit you should be able to1 list the obligations of the teachers and the head of the institution
introduction in this unit we introduce you to the fundamental of personal safety code in a laboratory if you do not have safe laboratory practice
lab animals in this section we shall deal with the important aspects concerning lab animals you are advised to be familiar with regulations
hazards in the laboratory laboratories in the biology department of schools colleges and universities and other higher level organisation such as
objectivesafter studying this unit you should be able to1 state the principal hazards of biology lab work2 describe the ways to minimize
introduction in any science lab you work with chemicals gases electrical equipments glassware instruments etc in case you are working in a biology
let us summarise the important points that we have understood about the radiation and chemical hazards in this unit the radiations causing severe