1. El conocimiento científico
Física y química 3º E.S.O.
FIRST TERM
UNIDAD 0:
El conocimiento científico

2. CHEMICAL HAZARD LABEL

3. CHEMICAL HAZARD LABEL

5. PICTOGRAMS

6. R and S phrases

11. R and S phrases
Hazard classification should be indicated with hazard signs and hazard symbols and/or R phrases as well as S phrases.
R phrase and R number: phrases indicating the risks of hazardous preparations and substances, and their numbers respectively.
S phrase and S number: phrases related to the safe handling of hazardous preparations, and their numbers respectively.
Risk Phrases (R) and Safety Phrases (S) also occur in combinations (combined R and S phrases).