Hazard Communication
The Problem
Chemical hazards are present in many Canadian workplaces, but the biggest risk is not understanding or knowing how to handle these substances safely. Without proper hazard communication, workers may encounter unlabelled containers, missing or incomplete Safety Data Sheets (SDS), or poorly stored chemicals — leading to accidents, injuries, or long-term health issues. Today, we’ll discuss how Canada’s Workplace Hazardous Materials Information System (WHMIS) and Hazardous Products Act ensure your right to know about the hazards around you and how to protect yourself.
Identify the Hazards
Safety Practices and Preventative Measures
Chemical Identification and Labelling
- Maintain an up-to-date register of all hazardous products onsite.
- Ensure all containers are clearly labelled with:
- Product name
- Hazard pictograms and classification under the Globally Harmonized System (GHS)
- Signal words (e.g., Danger, Warning)
- Precautionary statements
- Label secondary containers clearly with the product name and hazard classification.
Access and Use of Safety Data Sheets (SDS)
- SDS must be readily accessible to all workers during their shifts, either physically or electronically.
- Learn how to read key SDS sections, including:
- Hazard identification
- First aid measures
- Safe handling and storage
- Report any missing or outdated SDS to your supervisor.
Chemical Storage Requirements
- Store substances based on compatibility — never mix incompatible chemicals.
- Use secondary containment for liquids to prevent environmental harm.
- Ensure proper ventilation in storage areas to reduce vapour build-up.
- Use flammable goods cabinets for storing flammable liquids.
- Regularly inspect storage areas for compliance with applicable provincial health and safety regulations and CCOHS guidance.
Emergency Procedures and Equipment
- Ensure emergency eye wash stations and safety showers are accessible within 10 seconds of hazardous work areas.
- Keep spill kits available, stocked, and ready for immediate use.
- Follow the site’s emergency procedures for spills or exposures.
- Display emergency contact details and first aid information clearly.
Real-Life Case or Scenario
Consider this real example: A worker used an unlabelled bottle they believed was a regular cleaning solution. It turned out to contain a caustic substance, resulting in chemical burns. The container had no label and there was no SDS available. This incident could have been prevented with proper labelling and accessible hazard information.
Employee Responsibilities
- Always check for labels and hazard symbols before using any chemical.
- Report missing labels, unmarked containers, or inaccessible SDS immediately.
- Use all required PPE when handling hazardous substances.
- Complete hazardous substances training and apply it consistently.
Employer Responsibilities
- Maintain an accurate hazardous products inventory and ensure correct labelling.
- Provide Safety Data Sheets (SDS) and ensure they are accessible to all staff.
- Train workers in chemical safety and handling procedures.
- Maintain compliant chemical storage areas and respond promptly to reported hazards.
Discussion & Questions
- Have you ever encountered an unlabelled chemical container or missing SDS onsite?
- Do you feel confident in understanding SDS information?
- Are there any specific chemicals onsite that we should review procedures for?
Encourage open discussion and feedback from the team.
Commitment/Action Plan
Let’s commit to identifying and understanding chemical hazards by ensuring every chemical is labelled correctly and supported by an accessible SDS. If something is unclear or unlabelled, stop and report it. Safety begins with knowledge.
Wrap-Up
- Hazard communication is essential for safety.
- By staying informed and following correct procedures, we protect ourselves, our team, and our workplace.
- If you’re unsure about any chemical or label, speak up, check the SDS, and ask for help.
Standards Overview
In Canada, employers must:
- Maintain a hazardous products inventory for each workplace.
- Ensure all containers are correctly labelled in accordance with the Globally Harmonized System (GHS) under WHMIS.
- Make Safety Data Sheets (SDS) for each hazardous product available to all workers.
- Implement safe storage and emergency response procedures.
Disclaimer
“The information provided in this toolbox talk is intended for informational and educational purposes only. It is not a substitute for professional legal, safety, or regulatory advice. The content reflects general best practices and industry standards but may not be applicable to all workplace environments or jurisdictions.
It is the responsibility of employers, supervisors, and workers to ensure compliance with applicable federal, provincial, and territorial laws, regulations, and standards, including but not limited to those set by the Canadian Centre for Occupational Health and Safety (CCOHS) and relevant provincial occupational health and safety authorities. Site App Pro, its affiliates, agents, or representatives—as well as the authors, presenters, and distributors of this toolbox talk—assume no liability for the use or application of the information provided.
Participants are strongly encouraged to consult appropriate legal, safety, or regulatory professionals regarding specific workplace concerns or questions. Always adhere to your organisation’s policies and procedures for health and safety and hazard management.
All Rights Reserved Site App Pro 2025