What Is the Purpose of a SDS in Workplace Hazard Communication

A Safety Data Sheet (SDS) explains the hazards of a chemical and gives information on safe handling, storage, exposure controls, first aid, and emergency response. Its purpose is to help workers and employers make informed decisions about chemicals and respond to incidents.

In the United States, OSHA’s Hazard Communication Standard, 29 CFR 1910.1200, requires chemical manufacturers and importers to assess hazards and provide information through labels and SDSs. Employers must make SDSs accessible to workers and provide training on hazardous chemicals in the workplace.

How the SDS is organized

SDSs use a 16-section format. The structure makes it easier to find information, though some sections may contain limited information or state that a particular detail is unavailable.

The sections cover:

• Product and hazard identification: Sections 1–2 describe the product and its hazards.
• Chemical and safety information: Sections 3–11 cover ingredients, first aid, firefighting, spills, handling, exposure controls, physical properties, stability, and toxicology.
• Other information: Sections 12–16 address topics such as ecological effects, disposal, transport, regulations, and revision details. OSHA’s standard requires the 16-section format, but does not enforce the content of Sections 12–15.

For example, a worker looking for a product’s flash point would check Section 9, which covers physical and chemical properties. A worker responding to a fire would check Section 5 for firefighting measures.

What information an SDS provides

A product label gives key hazard warnings, but it cannot include every detail needed for safe use. The SDS provides further guidance for workers, supervisors, and emergency responders.

If a chemical splashes into someone’s eyes, Section 4 describes first-aid measures. Section 5 covers firefighting measures, while Section 6 provides guidance on accidental releases. Section 7 covers handling and storage. Section 8 describes exposure controls and personal protective equipment, or PPE.

Section 8 may include applicable occupational exposure limits, along with recommendations for ventilation and protective equipment. Employers can use this information when planning work and deciding what controls may be needed. The SDS is one source of information for those decisions; the specific task and conditions also matter.

How employers use SDSs

Employers use SDS information to plan storage, select controls, prepare emergency procedures, and train workers. They must keep SDSs accessible to employees during their work shifts. Access can be electronic or paper-based, provided workers can use the system when they need the information.

Employers also need to maintain their SDS records. If a supplier provides an updated sheet, the employer should ensure that workers can access the current version. Training should explain how to find and use relevant information, not simply where the documents are stored.

An SDS does not assess every workplace task. It describes hazards and safety guidance for a product, but employers still need to consider how the chemical will be used, the amount involved, the work environment, and the controls in place. The SDS also does not replace training or emergency procedures.

Example: using an SDS before a maintenance task

A maintenance worker is preparing to use a degreaser on a machine part. The supervisor checks the SDS before work begins. Section 8 provides information on protective equipment and ventilation. Section 7 covers handling and storage, and Section 10 describes stability and reactivity, including conditions or materials to avoid.

The supervisor can use those details to plan the task and explain the precautions to the worker. If a spill or exposure occurs, the relevant emergency guidance is available in Sections 4 or 6. The exact precautions depend on the product and the conditions at the worksite.

Key Takeaways

• An SDS communicates a chemical’s hazards and provides guidance on handling, storage, exposure controls, first aid, and emergency response.
• OSHA’s Hazard Communication Standard requires SDSs for hazardous chemicals and requires employers to make them accessible to workers.
• The 16-section format helps readers locate information, such as first aid in Section 4 and exposure controls in Section 8.
• Employers use SDSs to support workplace decisions and training. An SDS does not replace task-specific planning or safety procedures.