In every laboratory that handles chemicals, there is one document that is often mentioned but rarely read — the SDS, or Safety Data Sheet. Many people think an SDS is just a file kept in a safety cabinet, but in reality, it is the most important safety document you should read before touching any chemical.

This article explains what an SDS is, what information it contains, and why every laboratory user must understand it.

What Is an SDS?

A Safety Data Sheet (SDS) is an official document that provides complete information about a chemical — including its hazards, safe handling procedures, emergency actions, and storage requirements.

Chemical manufacturers are required to provide SDS in accordance with international standards such as the GHS (Globally Harmonized System).

In other words, the SDS is the “safety manual” for each chemical.

Why Is the SDS Important?

1. Prevents Accidents

The SDS describes hazards such as:

flammability
toxicity
corrosiveness
reactivity with air or water
irritation or organ damage

By understanding these risks, users can prepare proper safety measures before using the chemical.

2. Specifies the Correct PPE

The SDS clearly states the exact PPE required, such as:

nitrile/latex/chemical-resistant gloves
goggles or face shields
chemical-resistant lab coats
respirators when necessary

Many people choose PPE based on habit, but the SDS specifies what is correct for that chemical.

3. Guides Spill Response

In the event of a spill, the SDS provides:

correct cleanup procedures
appropriate neutralizers
suitable absorbent materials
steps to prevent contamination and exposure

This helps reduce panic and ensures a safe response during emergencies.

4. Provides Safe Storage Instructions

The SDS explains:

recommended storage temperatures
ventilation requirements
hazard categories (flammable, oxidizer, corrosive, etc.)
incompatible chemicals

For example: strong acids and bases must not be stored in the same cabinet.

5. Provides First Aid Guidance

If exposure occurs through:

skin contact
eye contact
inhalation
ingestion

The SDS outlines clear first aid steps before medical assistance is available.

What’s Inside an SDS? (Simple & Easy to Understand)

Each SDS typically contains 16 main sections. The most important ones include:

Identification – chemical name, supplier information, emergency number
Hazards Identification – hazard symbols, risk statements
Composition – ingredients & concentrations
First Aid Measures
Fire-Fighting Measures
Accidental Release Measures
Handling & Storage
Exposure Controls / PPE
Physical & Chemical Properties
Stability & Reactivity
Toxicological Information
12–16. other supplementary information

Where Should the SDS Be Stored?

In a well-managed laboratory, SDS must always be:

easily accessible to all users
stored in a physical folder (e.g., Yellow SDS Binder) and/or
available in digital form in the lab’s intranet or webapp

SDS must be available before using any chemical — not afterward.

Who Should Read the SDS?

👉 All laboratory users, including:

students
researchers
lab assistants
supervisors
visitors who will be handling chemicals

You don’t need to memorize all 16 sections — but you must understand the critical parts such as hazards, PPE, and spill response.

Conclusion

Every chemical comes with risks — but with the SDS, none of those risks should ever be a surprise. Taking time to review the SDS helps prevent mistakes and ensures safer decision-making. A digital SDS Viewer in lab’s webapp further strengthens safety by making this crucial information easy to find, anytime and anywhere.