Chemical Store Ventilation: Can you clarify if the exhaust fan in the chemical store should be regularly tested to ensure it is providing sufficient ventilation?

Chemical Store Ventilation: Can you clarify if the exhaust fan in the chemical store should be regularly tested to ensure it is providing sufficient ventilation?
Glass stoppers fused to bottles: Do you have any advice regarding dealing with the (safe) removal of ground glass stoppers from reagent bottles, which have frozen to the joint?
Health monitoring requirements: Is health monitoring for exposure to hazardous chemicals required for chemicals in the List of Recommended Chemicals/ Chemical Management Handbook?
Soldering: Is it okay for students to do soldering using the tin/lead solder?
Disposal of potassium permanganate and glycerol reaction: How do I safely dispose of the products of the exothermic reaction between potassium permanganate and glycerol conducted in a mortar and pe
Whoosh bottle: Is using isopropanol as a fuel safer than using ethanol or methanol?
Precipitation reactions: I am looking for precipitate reactions that have the least impact on the environment but are also dramatic. Do you have any suggestions?
Microscale Chemistry: Can you provide some information on microscale chemistry please?
Potassium metal: Is potassium metal permitted for demonstrations?
Depth Studies: Can you suggest ideas for (NSW) Depth Studies in biology?