Laboratory signage for microbiology: Is it mandatory for school science laboratories to have a biological hazard sign on laboratory doors and equipment such as incubators and fridges where microorg

Laboratory signage for microbiology: Is it mandatory for school science laboratories to have a biological hazard sign on laboratory doors and equipment such as incubators and fridges where microorg
GHS Signage: Flammable Liquids and Corrosives cabinets.