Difference Between SDS and MSDS: Definitions, Meanings, and OSHA Requirements

The difference between SDS and MSDS is one of the most common questions in workplace safety and compliance. Both terms refer to documents that communicate chemical hazard information, but their terminology reflects different eras of regulation. SDS stands for Safety Data Sheet, while MSDS stands for Material Safety Data Sheet. For years, MSDSs were the standard form of documentation for hazardous chemicals, providing critical details on handling, storage, and emergency procedures.

In 2012, OSHA aligned with the Globally Harmonized System (GHS) of Classification and Labeling of Chemicals, and the term “MSDS” was officially replaced with “SDS.” This transition standardized chemical safety communication around the world and introduced a consistent, 16-section format for safety data sheets. Understanding the shift from MSDS to SDS, and what compliance requires today, is essential for employers, safety managers, and employees handling hazardous materials.

What SDS Stands For?

SDS stands for Safety Data Sheet, which is a comprehensive document that provides crucial information about the hazards of chemicals, as well as safety precautions for their handling, storage, and disposal.

SDSs are essential for workplace safety and compliance with regulations, ensuring that workers, emergency responders, and other stakeholders have access to critical information to handle chemicals safely and effectively.

What information is on an SDS?

Safety data sheets are designed to effectively communicate the potential hazards associated with each chemical encountered by employees. SDS information includes the properties of each chemical, all potential hazards and protective measures, and precautions for the safe transporting, handling, and storage of the chemical.

The minimum information that must be included in an SDS is listed in Appendix D of OSHA’s Hazard Communication Standard (HAZCOM). It is also important to know that, while other languages are allowed, each SDS must have a copy in English.

Adhering to the UN Globally Harmonized System of Classification and Labeling of Chemicals (GHS) ensures consistency and facilitates easy access to essential information across different regions and industries. This means all safety data sheets must follow the same 16 section format, making it easy to search for specific information. Below are the 16 sections of an SDS:

• Identification
• Hazard(s) Identification
• Composition/Information on Ingredients
• First-aid Measures
• Fire-fighting Measures
• Accidental Release Measures
• Handling and Storage
• Exposure Controls/Personal Protection
• Physical and Chemical Properties
• Stability and Reactivity
• Toxicological Information
• Ecological Information (Non-Mandatory)
• Disposal Considerations (Non-Mandatory)
• Transport Information (Non-Mandatory)
• Regulatory Information (Non-Mandatory)
• Other Information, including date of preparation or last revision

MSDS Meaning – What MSDS Stands For?

MSDS stands for Material Safety Data Sheet and, much like an SDS, it is a document that provides detailed information about the potential hazards of a chemical product, as well as instructions for its safe handling, storage, and disposal.

MSDSs were commonly used before the adoption of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), which led to the transition to Safety Data Sheets for standardized hazard communication.

Difference Between SDS and MSDS – OSHA Compliance Impact

The main difference between an MSDS and an SDS is the standardized formatting. All SDSs follow the GHS’s 16 section formatting, while MSDSs could come in many different formats depending on the organization. Beyond that, they aim to convey the same information regarding chemical hazards.

By regulating MSDSs in accordance with the GHS, it is now simpler and easier to find common hazard safety information with SDSs. As of June 1, 2015, all MSDSs should have been converted into SDS format. However, old habits die hard, so if you hear someone refer to an MSDS, you know they are really talking about an SDS.

OSHA SDS Requirements

OSHA requires all employers to maintain SDSs for each hazardous chemical in the workplace, in alignment with the GHS standard. These requirements include:

• Using the standardized 16-section format for all SDSs.
• Providing employees with immediate access to SDS information.
• Training workers on how to read and understand SDS content.
• Updating SDSs when new hazard information becomes available.

These OSHA SDS requirements outline the consistency in chemical safety communication, reduce confusion, and protect workers across industries.

SDS and MSDS Frequently Asked Questions (FAQs)

1. What is the difference between SDS and MSDS?

SDS uses a globally standardized 16-section format, while MSDS varied by manufacturer and country. OSHA now requires SDSs.

2. What does SDS stand for?

SDS stands for Safety Data Sheet.

3. What does MSDS stand for?

MSDS stands for Material Safety Data Sheet.

4. What are OSHA SDS requirements?

Employers must maintain accessible SDSs in the 16-section GHS format, train employees on their use, and keep them updated as new hazard information becomes available.