Guides

Safety standards, explained for practitioners.

The symbol library tells you what each sign means. These guides cover the layer above: which standard applies to your facility, how the labeling systems interact, and how to specify signs that pass audits.

• ISO 7010 vs ANSI Z535 How the international pictogram system and the American signal-word system differ, which one your jurisdiction expects, and how multinationals combine both.
• GHS Label Requirements The six required label elements, all nine pictograms, precedence rules, and where OSHA HazCom and EU CLP diverge.
• NFPA 704 Fire Diamond What the blue, red, yellow, and white quadrants mean, how 0–4 ratings are assigned, special symbols, and where the placard is required.
• Safety Sign Colors ISO 3864 and ANSI Z535 color codes with RAL references, pipe marking colors, and design rules for color-blind accessibility.