What each GHS pictogram is, why they matter for workplace safety and compliance, which ones U.S. employers must use, and a concise reference to recognize hazards fast.
GHS pictograms are nine standardized black-on-white symbols in red diamond frames used on product labels and SDS Section 2 to communicate chemical hazards quickly.
Pictograms speed point-of-use decisions (PPE, storage, tools) and are common inspection findings when missing or incorrect—so accuracy is a compliance and safety issue.
GHS stands for the Globally Harmonized System of Classification and Labelling of Chemicals, a UN framework that standardizes how chemical hazards are presented. Each pictogram is a black symbol on white, inside a red diamond. The shape and color are consistent so that a worker who recognizes the diamond on one product recognizes it on others and in other countries that adopt GHS.
Why pictograms matter at the workplace
Pictograms are designed for rapid recognition at point of use. A symbol should tell a handler faster than reading a full hazard statement whether a chemical is flammable, corrosive, an acute poison, or causes long-term health effects. That speed drives practical choices: which glove to wear, whether to avoid sparks, how to segregate storage, and what immediate response is needed in a spill.
The nine GHS pictograms and what they indicate
Each pictogram maps to specific hazard classes. Below are the nine symbols and the hazards they represent in plain terms:
Practical steps for employers and safety staff
GHS pictograms are concise, standardized warnings intended to prompt quick, safety-critical decisions at the point of use. Accurate labeling reduces inspection risk and helps prevent exposure incidents by signaling hazards before anyone reads the full SDS.
 Here's your MSDS / SDS infographic  clean, GHS-compliant, and ready for training: 📎 It breaks down: What it covers: What MSDS/SDS is and why it matters All 16 sections grouped into 4 color-coded blocks: Blue: Identification & Hazards (1-3) Red: Emergency & Response (4-6) Amber: Handling & Properties (
⚠️ 9 CLASSES OF HAZARDOUS SUBSTANCES — KNOW WHAT YOU HANDLE 📋 Master the full classification: 🔹 Class 1 — Explosives 💥 → TNT, ammo, fireworks 🔹 Class 2 — Gases 🔥 → Flammable / Non-flammable / Toxic (LPG, O₂, NH₃) 🔹 Class 3 — Flammable Liquids ⛽ → Petrol, diesel, acetone 🔹 Class 4 — Flammable Solids → Spontaneous
GHS is a classification and labeling framework published by the United Nations and revised roughly every two years. It has no force of law on its own. In the United States the enforceable rule is OSHA's Hazard Communication Standard, 29 CFR 1910.1200, which adopts most of GHS Revision 7 along with selected elements of
GHS stands for the Globally Harmonized System of Classification and Labelling of Chemicals. It's an international framework, developed by the United Nations, that standardizes how chemical hazards are classified and communicated, through consistent labels, pictograms, and Safety Data Sheets (SDS), regardless of where a
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 Regulatory Safety Signs Regulatory safety signs are standardized signs used to control behavior, communicate hazards, and identify safety facilities in workplaces. 1. 🔵 Mandatory signs — tell you what must be done Examples: Wear helmet, eye protection, safety boots, hearing protection, respirator. 2. 🔴 Prohib
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