Tag
GHS
21 OSHA and HazCom articles tagged "GHS" — practical, CFR-cited guidance verified against primary sources.
The Globally Harmonized System (GHS) is the international framework for classifying and labeling chemical hazards that OSHA adopted into HazCom. It sets the pictograms, signal words, hazard statements, and the 16-section SDS format. These guides explain GHS classification, the 8 pictograms OSHA requires (not 9), and the HCS 2024 alignment to GHS Revision 7.
GHS Label Requirements: The Complete Guide
Every mandatory element of an OSHA GHS label — the six required parts of a shipped label, the two options for workplace/secondary containers, the immediate-use exception, and the small-package rules HCS 2024 added.
NFPA 704 & HMIS vs GHS Labels: Can You Use the Fire Diamond?
Can the NFPA fire diamond or an HMIS bar label be your workplace container label? Yes, with conditions. What OSHA allows, and the reversed 0-4 vs 1-4 rating trap that confuses everyone.
Thermal Runaway: The Workplace Fire Hazard OSHA Has No Standard For
A data analysis of the lithium-ion battery fire surge — from FDNY's fire logs to EPA's waste-facility data to CPSC's injury curve — and the regulatory reality that OSHA has no lithium-battery standard, only the General Duty Clause and a HazCom hook most employers miss.
The 8 OSHA Pictograms vs the 9 GHS Pictograms: Why the Environment Symbol Isn't Required
OSHA requires 8 GHS pictograms on chemical labels; the 9th environment symbol (GHS09) is voluntary. Why, where else it is required, and how to keep your US labels compliant.
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.
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.
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.
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.
The 6 Required Elements of a GHS Shipped Label (with a Field-Checkable Checklist)
Every GHS shipped-container label needs six required elements under 29 CFR 1910.1200(f)(1). Use this field-checkable checklist — plus a worked example and the mistakes that draw citations — to verify compliance fast.