Safety Data Sheet: Information for Handling Hazardous Materials
If you're working with hazardous materials, the Safety Data Sheet is where the detail lives: what a substance does, what it reacts badly with, how to handle it, and what to do if something goes wrong. Every workplace using hazardous materials needs the current SDS on hand, and staff need to know how to work through it, not just skim the label.
A Safety Data Sheet is not a document to skim once and forget. It is the reference you go back to before, during and after a task that involves a hazardous substance, and it is organised so that each part of the job has a matching section.
Start With the Label, Then Go to the SDS
The label on a container gives you the basics under the GB CLP Regulation: hazard pictograms, a signal word and short hazard and precautionary statements. That is a starting point, not the full picture.
The SDS behind the label sets out the ingredients, recommended PPE, safe storage advice and first-aid steps in detail. If you have not been given one, check the supplier's website or ask them directly; they are legally required to provide it. ISDSS also gives free access to over 1.5 million SDS documents that you can search by product name or manufacturer.
What UK Law Requires
Working safely around hazardous substances is a legal duty under the COSHH Regulations, not a matter of personal judgement. Employers must assess the risks, put suitable controls in place, and make sure staff are trained and the SDS is available and understood. Training needs to cover what the hazards actually are, what PPE to wear and what not to mix, not just a five-minute induction.
Labelling has to be accurate too: a hazardous product needs a proper CLP label with warnings that match its SDS, not a generic description like "cleaning fluid". Disposal has rules as well, and "down the drain" is rarely the correct answer; Section 13 of the SDS and your local waste regulations set out what is required.
A Task Workflow Using the SDS
Before you start a task, work through the sections that apply to it rather than reading the whole document end to end each time:
- Section 2 tells you the hazards: flammability, toxicity, corrosive or other effects.
- Section 7 covers handling and storage, including how to keep the substance safely between uses.
- Section 8 sets out exposure controls and the PPE the manufacturer recommends for the task.
- Section 10 lists incompatible materials and conditions to avoid, which matters when substances are stored or used near each other.
- Section 6 covers what to do if there is an accidental spill or release.
- Section 13 gives disposal considerations for the substance and its packaging.
Check the SDS again if anything about the task changes: a different quantity, a new storage location, or a substance you have not used before. Manufacturers revise formulations, and the risks may not match what you remember from a previous batch.
Labelling, Training and Supplier Duties
Suppliers must classify their products correctly under CLP and provide an SDS that matches the label. Employers must then translate that information into training, work instructions and the controls set out in a COSHH assessment. Our guide to how an SDS supports COSHH compliance explains how those two documents fit together.
If you are the one handling the substance, wear the kit the SDS recommends, store it where it belongs, away from incompatible materials and ignition sources, and follow the disposal instructions once you are finished. Empty does not mean harmless.
Making the SDS Part of Daily Work
You do not need a science background to work safely with hazardous materials, but you do need to know what you are handling. Read the relevant sections of the SDS before the task, follow the controls it sets out, and use it during inductions, toolbox talks and refresher training rather than only when something has already gone wrong.
Keeping the SDS Accessible and Up to Date
An SDS filed away in a manager's office is no use to someone handling the substance on the shop floor. COSHH requires that safety information stays available to the people doing the work, not locked in a cabinet two floors away or buried in a drive nobody checks before a shift starts.
The SDS should be treated as a working document, not a one-off filing task. Manufacturers revise formulations and reissue SDS documents when the classification or ingredients change, so the version on file needs checking against the current one rather than assumed accurate because it worked last year. A new batch or a new supplier is reason enough to pull the latest sheet.
HSE inspectors can ask to see the SDS for any substance on site, and "we have one somewhere" does not satisfy that request. It needs to be where the work happens and current enough to match what is actually in use.
Frequently Asked Questions
Where do I find the current SDS for a product?
Check the label first, then ask the supplier directly or search ISDSS for the exact product. Manufacturers and suppliers are legally required to provide an SDS for hazardous products on request.
Which SDS sections actually matter when handling a substance?
Section 2 for hazards, Section 7 for handling and storage, Section 8 for exposure controls and PPE, Section 10 for incompatibilities, Section 6 for spill response and Section 13 for disposal. Together they cover the task from start to finish.
Does the workplace label replace the need to read the SDS?
No. The label gives hazard pictograms and a short summary under the GB CLP Regulation. The SDS behind it holds the full detail on handling, storage, incompatibilities and emergency response that the label cannot fit.
Who is responsible for training staff on hazardous materials?
Employers must ensure workers are trained to understand the hazards, controls and emergency procedures for the substances they handle, as part of their COSHH duties. A brief induction is not sufficient on its own for genuinely hazardous work.
Can I dispose of a hazardous substance down the drain once the container is empty?
Not usually. Follow the disposal guidance in Section 13 of the SDS and your local waste regulations. An empty container can still carry residue and hazardous properties.
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