Shoe polish, used batteries, old medicine, toilet bowl cleaner and nail polish remover—what do they have in common? They're toxic and you're surrounded by them. While nearly everything in excess can be harmful, there is a point when identifying hazard materials—even in small doses—can prevent disaster. The Hazard Communication Standard—currently referred to as HazCom 2012—covers nearly all aspects of handling hazardous materials. Within that standard, OSHA has defined a list in subpart H of 1910.1200 of the CFR, categorizing all hazardous materials. If you’re lucky enough to find that list without rifling through countless OSHA pages then you may need a secondary table, translating their obscure names to the familiar ones you know.
Instead, you can refer to this easy-to-understand table to identify all types of hazardous materials, understand why they are defined as hazardous and recognize hazardous symbols associated. This is not to be confused with Appendix A of 29 CFR 1910.119—the list of the most dangerous chemicals in the world that can cause catastrophic events.
|Category: CRF 1910 (Subpart H)||Material||Hazard|
||Compressed, flammable, and oxidizing gases (Types)
These are reactive substances. Some are very unstable and can burn or explode under certain circumstances. Examples include chromic acid, peroxides, perchlorates and cyanides, fire extinguishers & engine starting fluids. These substances can generate toxic gases under mildly acidic or alkaline conditions.
Commonly called “laughing gas.” Nonflammable, colorless gas with pleasant, sweet odor. Used as an anesthetic agent. OSHA has no exposure limit, but requires it to be treated as a hazardous material in lab work.
||Flammable liquids (Types)
Examples of ignitable liquids include acetone, solvents, waste inks, gas, fuel oil, and some dry cleaning chemicals. Any liquid with a flash point less than 140⁰F, or solids that can ignite via friction, or the absorption of moisture and a spontaneous chemical change fall under this category.
|1910.109||Explosives and blasting agents (examples)
A blasting agent is any mixture of a fuel and oxidizer, intended for blasting, which hasn’t already been classified as an explosive. The finished product packaged for shipment cannot be detonated by No. 8 blasting cap.
- Aerosols, liquids, solids
- Gases, liquids, solids
- Acute toxicity, skin irritation, eye irritation, skin sensitization
- Acute toxicity (oral, dermal, inhalation)
- Health hazard:
- Respiratory, germ cell, carcinogenicity, reproductive toxicity
- Unstable explosives, self-reactive substances and mixtures
- Corrosive to metals; skin corrosion
- Environmentally damaging:
- Acute and chronic hazards to aquatic environment
- Compressed gas:
- Compresses, liquefied, refrigerated liquefied, dissolved gases