Laboratory rules
  • Keep perfect silence in the lab. It is essential for concentration and successful scientific working.
  • Keep your apparatus, table, and notebook neat and clean.
  • Add reagents in proportionate amounts. This is the key to success.
  • Keep the reagents stoppered, do not change the stoppers of the bottles and also do not disturb the arrangement on the shelf. Keep the reagents at their proper place.
  • Do not shift the bottles from the common shelf.
  • Do not throw broken glass pieces, match sticks, filter paper etc. in the sink. Throw them in the waste box kept for the purpose.
  • Shake the test tubes while heating. Do not throw hot and concentrated acids, especially concentrated sulphuric acid.
  • Pass Hydrogen Sulphide gas slowly in the solution. It is a very poisonous gas, do not leave the gas stopper open.
  • Keep the furniture in order before leaving the lab. Switch off lights, fans, and close windows.