Risk Assessment

Likelihood
Rating 1 = Very unlikely
Rating 2 = Unlikely
Rating 3 = Likely
Rating 4 = Very likely
Rating 5 = Almost certain Severity
Rating 1 = No injury/impact
Rating 2 = Minor injury/impact
Rating 3 = “3 day” injury/impact
Rating 4 = Major injury/impact
Rating 5 = Fatality, disabling injury, etc. Risk Severity
Likelihood x 1 2 3 4 5 1 1 2 3 4 5 2 2 4 6 8 10 3 3 6 9 12 15 4 4 8 12 16 20 5 5 10 15 20 25

Manageable risk Requires Review Unacceptable risk

Hazard Likelihood Score Severity Score Overall Risk Score Actions already taken to reduce risk Further actions recommended
Silver nitrates; Little exposure to the chemical will not produce immediate or even any side effects other than the purple skin stains, but with more exposure, side effects will become more noticeable. 2 2 4 Using a small volume of silver, this will stop any major injury as there is such little liquid.
Protective gloves.
Protective clothing.
Do not eat, drink, or smoke during work. NO contact with flammable substances.
Prevent dispersion of dust! Strict hygiene!
Conc. Ammonia;
It causes burns; it is dangerous to the eyes (goggles should be worn). It causes severe internal damage if swallowed. 2 6 12 Ensure room is well ventilated. Avoid inhaling vapour.
Wear eye protection. Remove contaminated clothing. Drench the skin with plenty of water.
If a large area is affected or blistering occurs, see a doctor
Chlorine; This is toxic if breathed in, causing severe lung damage. It irritates the eyes, skin and respiratory system. It may trigger an asthma attack and the effects of exposure may be delayed for some hours. 2 3 6 For chlorine water, remove contaminated clothing and rinse it. Then drench the skin with plenty of water.
Flood the eye with gently-running tap water for 10 minutes. Wear eye protection.
Use a fume cupboard for anything