physical and chemical are two
There are two categories of experiments: laboratory and field.
GHS has more than 3 categories. Basically we can consider groups as Labels and Safety Data Sheets (SDS). Each group contains many classes. Within the GHS classification system, there are three major hazard groups:Physical hazards.Health hazards.Environmental hazards
1: chemical 2: physical 3: mechanical 4: biological 5: phychosocial
Atmospheric and non-atmospheric
Awareness, educational, avoidance
Exposure to Chemical Hazards. Exposure to blood-borne pathogens
if u spill some sort of drink on a computer it is most likely to break
The most important rule for laboratory safety is "Know the hazards of what you are working with." The next most important rule is "Know how to protect yourself from the hazards of the materials you are working with."
3 items each in 3 categories gives 3*3*3 = 27 possible combinations.
Chemical spills, broken glassware, and electrical malfunctions may all be considered hazards in the laboratory as they can pose risks to the safety of laboratory personnel and the integrity of experimental procedures.
* Fire and explosion hazards * Health hazards
The four main categories of natural hazards are geophysical (earthquakes, tsunamis), meteorological (hurricanes, tornadoes), hydrological (flooding, avalanches), and climatological (extreme temperatures, droughts). Each category presents unique risks and challenges for risk mitigation and emergency response efforts.