Nmc ghs2054al2, toxic ghs label, paper, 4″ x 4″, 250/roll the ghs is an acronym for the globally harmonized system of classification and labeling of chemicals. It is a system for harmonizing hazard classification criteria and chemical hazard communication elements worldwide. Use ghs symbols to convey information about health, physical, and environmental hazards. pictograms required for use: acute toxicity (fatal or toxic)