Disposal of empty helium cylinders: From browsing Google, there seems to be a lot of confusion on how to dispose of empty helium gas cylinders.
Phenylthiocarbamide paper: Hi, Are you still allowed to use phenylthiocarbamide paper?
Disposal of silver nitrate solid: I have collected silver nitrate solution in a winchester and decanted it off, ready to evaporate the solution, so that I am left with just the solid waste.
Science drug lab equipment: Apparently school laboratories need a list, by item and quantity, of anything that could be targeted by a 'drug lab' break in.
Use of a spirometer: One of our teachers would like to use a spirometer in class. The spirometer requires the user to breath in rather than blow air out. Are we allowed to do this, if we have dis
Chemical disposal (chromium): I have a small amount of potassium dichromate and potassium chromate to be disposed. What is the best way to do this?
pH Probe: Can anyone suggest a pH probe with data logging function/capabilities for use with our senior science groups?
Spill Kit: Hi, My school is for Years 7–12. I have a Spill Kit in place at work (stored in the prep room) which is kept in a smaller (i.e., 1/2 size) than standard-size wheelie bin.
Agar plates: I've been asked to make up agar plates with different pH values from 3–11—any information I can find on the net suggests the agar won't set at a low pH. Any ideas?
Laboratory doors: I was wondering if it is a requirement that science room doors be locked when not attended by staff? If so, is this written down anywhere?