Risk and Safety Statements
Encyclopedia : R : RI : RIS : Risk and Safety Statements
Risk and Safety Statements, also known as R/S statements, R/S numbers, R/S phrases, and R/S sentences, is a system of hazard codes and phrases for labeling dangerous chemicals and compounds. The R/S statement of a compound consists of a risk part (R) and a safety part (S), each followed by a combination of numbers. Each number corresponds to a phrase. The phrase corresponding to the letter/number combination has the same meaning in different languages - see 'in other languages' on the left.
Example
The R/S statement code for fuming hydrochloric acid (37%) is:- R: 34-37 S: 26-36-45
- Risks
- : R: 34 Causes burns
- : R: 37 Irritating to the respiratory system.
- Safety
- : S: 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
- : S: 36 Wear suitable protective clothing.
- : S: 45 In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).
- Example: R: 34-37 Causes burns, irritating to the respiratory system.
- Example: R: 36/37/38 Irritating to eyes, respiratory system and skin.
See also
External links
- [List of R/S statements at Sigma-Aldrich]
- [Australian hazardous substances information system]
- [European Union commission directive 2001/59/EC] (pdf)
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