A Safety Data Sheet is the technical safety document for a hazardous product. Under WHMIS, its standardized 16-section format helps workers find hazards, controls, emergency measures, storage requirements and regulatory information.
An SDS is not a substitute for training, labels or a site-specific safe-work procedure. Its value comes from reviewing it before purchase and use—not searching for it after a spill.
Quick answer
Confirm the exact product and revision, read Sections 1 and 2 for identity and hazards, then use Sections 4 through 8 for emergency response, handling and exposure controls. Check storage, incompatibilities and disposal before the product enters the workplace.
What you need to know
- Match the product name and supplier to the container label.
- Section 2 summarizes classified hazards; it does not contain every practical control.
- Sections 4, 5 and 6 support first aid, fire and spill planning.
- Sections 7 and 8 guide handling, storage, exposure controls and PPE.
- Sections 10 through 13 help assess incompatibility, health effects and disposal.
Tools and materials
- Current SDS for the exact product
- Supplier label and product identifier
- Workplace risk assessment and safe-work procedure
- Emergency contacts and spill plan
- Required exposure-control and PPE information
- Accessible worker SDS system
Step-by-step method
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Verify the document
Check product identifier, supplier, language and revision date. Do not use a sheet for a similar product, a different hardener or an obsolete formulation.
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Read the hazard summary
Review classification, pictograms, signal word, hazard statements and precautionary statements in Section 2. Connect these to the tasks and quantities in your workplace.
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Plan emergencies
Use first-aid, firefighting and accidental-release sections to prepare supplies, training, isolation and reporting before an incident.
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Define normal controls
Review handling, storage, exposure limits, engineering controls and PPE. Select controls for the actual process rather than copying a glove or respirator name without a hazard assessment.
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Check physical behaviour
Use Section 9 for appearance, odour, flash point and other relevant properties, then Section 10 for stability, incompatible materials and hazardous reactions.
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Understand health and environmental information
Sections 11 and 12 explain exposure routes, symptoms, toxicological information and environmental considerations. Escalate questions to a competent safety professional.
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Keep access current
Store SDS documents where workers can retrieve them during each shift, including during network or power interruptions. Update procedures and training when products or hazards change.
Common mistakes
- Calling every SDS an MSDS and assuming the old document is current
- Using a generic family sheet for a specific product
- Looking only at the pictograms
- Choosing PPE without checking material compatibility and task exposure
- Keeping SDS files where workers cannot access them
- Treating the SDS as the complete workplace risk assessment
Safety and limits
Employers and workers must follow the WHMIS requirements that apply in their jurisdiction. Training, labels, SDS access and site procedures work together.
For an exposure or emergency, follow the SDS and workplace response plan and contact the appropriate emergency or poison service. Do not rely on an online article.
Frequently asked questions
Does SDS mean the same thing as MSDS?
SDS is the current standardized term. Older documents were often called MSDS, but workplaces should use the current sheet for the exact product.
Are all 16 sections equally important before use?
All sections have a purpose. Sections 1, 2 and 4 through 8 are the usual first review for identity, hazards, response and control.
How old can an SDS be?
Do not rely on age alone. Confirm that the supplier sheet matches the current product and formulation, and update it when significant new data or a revised sheet is provided.
Where should SDS documents be kept?
They must be readily available to workers who may be exposed. The access method should remain usable in an emergency.
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This guide provides general educational information. Products, substrates, site conditions and regulations vary. Follow the current technical data sheet, package directions and safety data sheet for every product you use. Code-regulated, structural or safety-critical work may require a qualified professional.