A document which covers general and specific hazards and risks in darkroom work, guidance on how these can be managed and such safeguarding issues as might apply.

This customisable document offers information on the hazards associated with chemicals commonly used in D&T departments, and can also be used as a stocklist.
CLEAPSS strongly recommends that any D&T teacher or technician with limited or no experience of  these chemicals should consult with their science colleagues.

To produce the track layout on a copper-clad board so that an electronic circuit can be made by etching away unwanted copper. 

The use of chemical cleaning agents to improve the flow through the drain from a sink and remove stains from the sink itself; many use strong acids or alkalis, others contain enzymes or hypochlorite.