This resource has been updated in March 2021 and can be located at https://assist.asta.

This resource has been updated in March 2021 and can be located at https://assist.asta.
Ammonium nitrate: Hi, Has anyone else had any trouble with ammonium nitrate absorbing water? Mine has become a clear mixture of liquid and crystals.
Disposal of products of sodium thiosulfate and hydrochloric acid: Risk assessment (thio
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 (PTC) paper used in genetics: Are we still allowed to pu
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.
pH Probe: Can anyone suggest a pH probe with data logging function/capabilities for use with our senior science groups?
This downloadable resource is an ASSIST Information Sheet (AIS) on the management of a school's science department.