Cleaning and reuse of a plastic container that previously held 10M HCl: I have a large (2.5L) commercial stock plastic container that is empty.

Cleaning and reuse of a plastic container that previously held 10M HCl: I have a large (2.5L) commercial stock plastic container that is empty.
Laboratory coats and aprons: What types of lab coats or aprons should be used in a school laboratory? What should they be made of?
Barium nitrate solutions: Is a 0.1M solution of barium nitrate permissible for years 7-10 in NSW Department of Education Schools? It is not clear in the CSIS chemical search.
Using E. coli bacteria in schools: A student is planning an experiment and would like to grow E. coli pili 1 strain and test antibotics on it. Can this strain of E.
Decommissioning a science area: Our school is building a new science area and will be decommissioning the existing science rooms. What advice can you provide on this process please?
Potassium iodide status and EUDs: Can you confirm whether potassium iodide is allowed in WA schools and can you explain what an EUD is?
Disposing of wire gauze mats with ceramic centres: I have some of these and have checked with the supplier in relation to the possiblity of containing Tremolite.
Using an air-rifle in schools to demonstrate velocity of a bullet: We are wondering what rules there are around using a BB pump rifle in schools to demonstrate velocity of a bullet.
Method for testing pH and catalase in liver for Yr 12 biology: I am looking for materials and method for a practical that tests pH and catalase in liver for year 12 biology.
3D printing is a relatively new technology and industry and is also one of the latest technologies to enter schools.