Tag
Hazard Classes
2 OSHA and HazCom articles tagged "Hazard Classes" — practical, CFR-cited guidance verified against primary sources.
GHS
Desensitized Explosives: The New HCS 2024 Hazard Class (Appendix B.17) and What It Means for Your SDS
HCS 2024 adds Desensitized Explosives as a new physical hazard class at Appendix B.17. Here is how it is classified (the four categories), what changes on the SDS and label, the pictogram, real examples, and the deadlines.
Jun 25, 2026
11 min read
GHS
GHS Revision 7 Converter: Every Hazard-Class Change in HCS 2024
HCS 2024 moves US labels from GHS Rev 3 to primarily GHS Rev 7. This is the complete old-to-new crosswalk: two new physical-hazard classes, the Flammable Gas 1A/1B split, the Aerosols overhaul, and exactly what to relabel before November 20, 2026.
Feb 11, 2026
12 min read