Natural science laboratory is one of very important facilities at school. It is a place to do an experiment. There are instruments and materials to do an experiment but we have to be careful in using that istruments and materials while working at the laboratory.
To avoid an accident, we need to recognize possible dangers that may happen when we work at the laboratory. Some potential danger in natural science laboratory include fire, poisoned and broken instruments
a. Treating glassware instruments
1) Carry the glassware carefully using both hands
2) Keep the glassware instruments in safe place or cabinet
3) Do not frequently move or remove fragile glassware
4) If we use a glassware burner, choose the one that is made of good quality glass
b. Treating electricity or electric instruments
1) Keep the instruments and electric installation away from water sprinkling in order to avoid short current connection
2) Electric installation such as cables, connectors, switchers and electric sockets needed to be checked routinely to see whether they are good condition
3) When using electronic instruments
- Check the required voltage before turning on the instruments
- Understand the procedure of operating the instruments before using
4) When keeping the instruments
- Make sure the instruments are in off mode
- Take out the battery ( if it is powered by battery )
- Keep the instruments in a dry place, away from water sprinkling
5) Keep the electronic instruments from shaking and collision
0 komentar:
Posting Komentar