 |
|
ABC of Safety in the Biological Sciences
ELECTROSTATIC CHARGES
Electrostatic charges represent a risk of ignition to flammable substances when they discharge. This form of charge can develop:
- When non-conducting containers are filled with non-conducting liquids such as acetone, cyclohexane, diethyl ether, carbon disulphide and toluene.
- With the rapid escape of gases containing solid particles such as rust or liquid droplets.
- With persons who are insulated from the earth by shoes or floors of a non-conductive material.
The dangers from electrostatic build up can be minimised by adopting the following procedures:
- Pour slowly and not from a great height.
- Use combinations of equipment which all have the same conductive or non-conductive properties. For example, avoid using metal funnels with glass or plastic flasks.
- Provide an electrical connection between conductive equipment and ensure that it is earthed.
- Use a funnel with a stem that reaches to the base of the vessel being filled in order to avoid splashing or spraying the liquid being poured.
BACK to the top
of the Glossary Contents List
BACK to the top of the Chemical
Contents List