Health and Safety with Specific Hazard Class Chemicals 3.1 – Flammable Liquids 3.2 – Highly Reactive Chemicals & High Energy Oxidizers 3.3 – Compressed Gases 3.4 – Corrosive Chemicals 3.5 – Chemicals of High Acute & Chronic Toxicity 3.6 – Regulated Chemicals & Particularly Hazardous Chemicals 3.7 – Nanomaterials