Tag
Hazard Classification
2 OSHA and HazCom articles tagged "Hazard Classification" — practical, CFR-cited guidance verified against primary sources.
GHS
Chemicals Under Pressure: OSHA's New HCS 2024 Hazard Class (Appendix B.3.2) Explained
HCS 2024 adds Chemicals Under Pressure as a new physical hazard class at Appendix B.3.2. What it covers, the pressure threshold, how it differs from aerosols and gases, and the deadlines.
Jun 25, 2026
9 min read
GHS
Flammable Liquid Categories Decoded: Flash Point and Boiling Point Thresholds (Cat 1-4)
GHS sorts flammable liquids into 4 categories by flash point and boiling point. See the exact Cat 1-4 thresholds in °C and °F, signal words, pictograms, and how OSHA HazCom classification drives the label.
Jun 25, 2026
11 min read