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Appendix B.3

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1 OSHA and HazCom article tagged "Appendix B.3" — practical, CFR-cited guidance verified against primary sources.

GHS

Aerosols Reclassified Under HCS 2024: Why There's Now a Category 3 (Non-Flammable)

HCS 2024 turned the old flammable-aerosol category into a full Aerosols hazard class (Appendix B.3) with three categories — including a brand-new non-flammable Category 3 that carries a signal word and a hazard statement but no pictogram at all.

Jun 25, 2026

11 min read

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