How To Create A Safety Data Sheet 16 Sections?

A Safety Data Sheet (SDS) is a standardized document that explains the hazards, safe handling, and emergency response for a chemical substance or mixture. To create one, you compile information across 16 sections in a fixed order set by the Globally Harmonized System (GHS). Each section answers a specific question — from what the chemical is called to how to respond if someone is exposed. The format is not optional if you sell or ship chemicals in the United States.

Table of Contents

What Is a Safety Data Sheet and Who Requires It?

An SDS is a technical document that travels with a hazardous chemical from manufacturer to end user. It is not a label, and it is not a marketing sheet. It is a reference for workers, emergency responders, and safety officers.

In the United States, the Occupational Safety and Health Administration (OSHA) requires chemical manufacturers and importers to provide an SDS for each hazardous chemical they produce or import. Employers must keep these sheets accessible to workers during every shift. The requirement comes from OSHA’s Hazard Communication Standard, which was aligned with the United Nations GHS in 2012.

The 16-section format is the international standard. Canada, the European Union, Australia, and many other countries use the same structure. That means one well-built SDS can often serve multiple markets with minor adjustments for local regulations.

An important distinction: the SDS is written for people who work with the chemical, not for consumers. Consumer products are generally exempt from the OSHA requirement, though some retailers request SDSs anyway. If you are unsure whether your product needs one, the answer usually depends on whether it meets OSHA’s definition of a hazardous chemical.

What Are the 16 Sections of an SDS?

The 16 sections must appear in this exact order. OSHA does not allow rearranging them.

Section 1: Identification — Product name, manufacturer or supplier name, address, phone number, emergency phone number, recommended use, and restrictions on use.
Section 2: Hazard Identification — GHS hazard classification, signal word (Danger or Warning), hazard statements, precautionary statements, and a description of what the chemical looks like (for example, a clear liquid or white powder).
Section 3: Composition/Information on Ingredients — Chemical name, common name, CAS number, and concentration for each hazardous ingredient. Trade secret claims are handled here with specific regulatory language.
Section 4: First-Aid Measures — What to do after inhalation, skin contact, eye contact, and ingestion. Include symptoms and any note about immediate medical attention.
Section 5: Fire-Fighting Measures — Suitable extinguishing media, special hazards from the chemical, and protective equipment for firefighters.
Section 6: Accidental Release Measures — Spill and leak response, containment, cleanup methods, and protective equipment.
Section 7: Handling and Storage — Safe handling practices, conditions for safe storage, and any incompatible materials.
Section 8: Exposure Controls/Personal Protection — OSHA permissible exposure limits (PELs), ACGIH threshold limit values (TLVs), engineering controls, and personal protective equipment recommendations.
Section 9: Physical and Chemical Properties — Appearance, odor, pH, melting point, boiling point, flash point, flammability, vapor pressure, density, and solubility.
Section 10: Stability and Reactivity — Chemical stability, hazardous reactions, conditions to avoid, and incompatible materials.
Section 11: Toxicological Information — Routes of exposure, symptoms, acute and chronic effects, and numerical toxicity measures such as LD50 or LC50 when available.
Section 12: Ecological Information — Ecotoxicity, persistence and degradability, bioaccumulative potential, and mobility in soil.
Section 13: Disposal Considerations — Safe handling for disposal and appropriate disposal methods for the chemical and its container.
Section 14: Transport Information — UN number, proper shipping name, hazard class, packing group, and environmental hazards for transport.
Section 15: Regulatory Information — Safety, health, and environmental regulations specific to the product, including EPA, OSHA, and state requirements.
Section 16: Other Information — Revision date, version number, and a key or legend explaining abbreviations used in the sheet.

How Do You Gather the Information for Each Section?

You do not invent data. You collect it from documented sources and your own testing or supplier records.

Start with the chemical identity. For a pure substance, use the CAS number from the Chemical Abstracts Service registry. For a mixture, list each hazardous component above its cutoff concentration. OSHA has specific concentration cutoffs that determine when an ingredient must be listed.

Hazard classification comes next. You evaluate the chemical against the GHS hazard classes — physical hazards, health hazards, and environmental hazards. This is a structured process, not a guess. Many manufacturers use software or consult a trained toxicologist or industrial hygienist for this step.

Physical and chemical properties in Section 9 usually come from laboratory testing or published reference data. If you are reformulating a product, previously measured values may no longer apply. Boiling point, flash point, and vapor pressure can change when the mixture changes.

Toxicological data in Section 11 should come from published studies, supplier data, or recognized databases. If no data exists for a specific endpoint, say so. Writing “no data available” is acceptable and honest. Making up an LD50 is not.

Regulatory information in Section 15 requires you to check which laws apply to your product and jurisdiction. This section varies more than any other between countries.

What Common Mistakes Should You Avoid?

Most SDS problems come from copying another company’s sheet and changing the name. That approach creates errors that can carry legal and safety consequences.

Here are mistakes that show up repeatedly:

Using a hazard classification that does not match the actual formulation
Leaving out ingredients that meet the cutoff concentration for disclosure
Listing an emergency phone number that is not answered 24 hours a day
Forgetting to update the revision date when anything changes
Using outdated exposure limits in Section 8
Mixing up transport classifications for different shipping modes

Another common issue is inconsistency between the SDS and the product label. OSHA expects the hazard statements on the label to match Section 2 of the SDS. If they do not align, that is a compliance gap.

One detail that is easy to miss: Section 16 must include the date of preparation or last revision. Reviewers and regulators look for this first. If the date is missing or years old, the sheet may be treated as unreliable.

Do You Need Professional Help to Write an SDS?

You can write an SDS yourself if you have the chemistry background and access to the right data. Many small businesses do. But there is no shame in hiring help — and in some cases it is the safer choice.

Professional SDS authoring services and software platforms exist. They handle hazard classification, regulatory lookups, and formatting. Costs vary widely depending on the number of products and the complexity of the chemistry.

If your product contains multiple hazardous ingredients, if it is sold in several countries, or if it falls under multiple regulatory frameworks, professional authoring reduces the risk of errors. If your product is a single, well-characterized substance with existing published data, you may be able to build a compliant sheet on your own.

Either way, the manufacturer or importer is legally responsible for the content. Hiring a service does not transfer that responsibility.

How Often Should an SDS Be Updated?

OSHA does not set a fixed review interval. Instead, the rule is that the SDS must be updated whenever new information becomes available.

Update triggers include:

A change in formulation or ingredient supplier
New toxicological or health data
A change in hazard classification
New regulatory requirements
Correction of an error found during review

Many companies review their sheets every three to five years as a routine practice, even when nothing has changed. That is a business decision, not a regulatory requirement. When you update, revise the date in Section 16 and note what changed.

Old versions should be kept for record-keeping. Workers who used the previous version may need to know what changed.

Frequently Asked Questions

Who is responsible for creating an SDS?

The manufacturer or importer of the hazardous chemical is responsible for creating and providing the SDS. Employers who use the chemical must keep it accessible but do not author it.

Can I write an SDS myself?

Yes, if you have the chemistry knowledge and access to reliable hazard and toxicity data. Many small businesses author their own sheets or use software to assist with classification and formatting.

What is the difference between an SDS and an MSDS?

An MSDS was the older format used before OSHA aligned with GHS in 2012. The SDS uses the standardized 16-section format, while the MSDS had no required structure.

Does every chemical product need an SDS?

No. OSHA requires an SDS for hazardous chemicals as defined by its Hazard Communication Standard. Products that do not meet the hazard criteria are generally exempt.