Under the Hazard Communication Standard, the standardized pictograms found on chemical container labels are used to:

Explanation

A shipped-container label under section 5194(f)(1) carries a product identifier, a signal word, hazard statements, precautionary statements, supplier identification, and one or more standardised GHS pictograms - a black symbol on a white field inside a red diamond - each standing for a class of physical or health hazard: flame, flame over circle, exploding bomb, corrosion, gas cylinder, skull and crossbones, exclamation mark, health hazard, environment. Option (c) describes the NFPA 704 diamond and the HMIS strip, which rank hazards from zero to four; both are common in California facilities and neither is a GHS pictogram. Option (b) describes the letter PPE code HMIS adds, which GHS labels do not carry. Option (a) names supplier identification, a separate required element rather than what the pictogram does.