Effective enzymes pH: Could I have some info on how I do the ph for the jelly for the pineapple prac please—Exploring Human Biological Science Stage 2 Body Works Activity 27 Page 176.
Zinc Nitrate: Hi, My bottle of zinc nitrate has liquid in it and the bottle has expanded. It does not look right.
Laboratory ventilation: What are the standards for laboratory ventilation?
Calcium oxide disposal: Hi. Can anyone tell me how to dispose of some very old calcium oxide. The container is all swollen and the date on the bottle is Dec 1988.
Cremated skeleton: I would like to know if anyone has had to dispose of a cremated skeleton from a school. The one here has been here for 8 years approx.
Litmus Paper: The Litmus paper in our lab is many years old, but has been kept dry in a dark drawer.
Disposal of old equipment: We have cupboards full of old school science laboratory equipment including: balances, models, etc. Most of the equipment hasn't been touched in over 10 years.
Getting Appy: Our science area is about to get tablets to replace the aging laptop computers that we currently use.
Legal temperature for the chemical storeroom in schools: I would like to know if there is a legal requirement for the temperature that a chemical storeroom should be kept at.
GHS labelling: I have a question about GHS labelling.
Does everything need to be GHS labelled, for example, common household items like sugar, salt, oil, dish wash liquid etc, etc?