What Is the Purpose of a Safety Data Sheet (SDS)? 

What an SDS is. 

The Safety Data Sheet (SDS), which is a technical document, offers information about a chemical substance or mixture’s potential hazards and guidance on how it should be handled, stored, transported, used, reacted to in emergencies, and disposed of safely. 

This information is compiled by the manufacturer or supplier based on knowledge regarding the chemical identity, physical and chemical properties, toxicity, reactivity, effects on the environment, and regulation of information. 

It is supposed to reach a wide audience that includes the worker who is dealing with the chemical, the supervisor, emergency responders, occupational health experts, and waste handlers. 

Who created it? 

• The chemical manufacturer, importer, or distributor is responsible for preparing or obtaining an accurate SDS for each hazardous chemical they produce or introduce to commerce in the U.S. 

• If a downstream user (e.g., a formulator or re-packager) modifies a product, they may need to obtain a new or updated SDS reflecting changed composition or hazards. 

• Employers are responsible for maintaining current SDSs supplied by manufacturers and for making them available to employees; however, they do not create SDSs unless they produce a workplace hazardous chemical for which they must create an SDS. 

Who uses it? 

• Frontline workers who handle, apply, or are otherwise exposed to chemicals. 

• Chemicals are responsible for following safety protocols; safety officers, EHS, and compliance managers are responsible for hazard controls. 

• Industrial hygienists and occupational health clinicians assessing exposures and recommending controls. 

• Emergency responders and fire departments responding to incidents. 

• Environmental managers and waste coordinators who make disposal decisions. 

• Logistics personnel involved in shipping and receiving hazardous materials. 

SDS vs MSDS 

Brief comparison table 

• SDS: Standardized 16-section format per the Globally Harmonized System (GHS); consistent structure and headings; utilized worldwide and mandated by OSHA HCS (revision 2012). 

• MSDS: Older “Material Safety Data Sheet” format, which was inconsistent in its structure and sections, as well as in the information provided in each one; pre-GHS. 

Explanation of GHS standardization 

• The Globally Harmonized System of Classification and Labeling of Chemicals (GHS) has established classification standards for chemicals and standardized both the components of labels and the structure of SDSs. 

• In 2012, OSHA modified the Hazard Communication Standard to align with GHS such that SDSs must be written using the 16-section format and contain standardized hazard communication components. 

• Compared to MSDSs, modern SDSs are more predictable and usable because they place specific types of information in the same sections across all SDSs. 

7 Key Purposes of a Safety Data Sheet 

The primary purpose of an SDS is to communicate chemical hazards and provide information needed to safely handle, store, transport, and respond to emergencies involving hazardous substances. 

Hazard Communication 

• Chemical hazards: SDSs specify what hazards a substance or mixture presents—flammability, explosivity, oxidizing potential, corrosivity, and environmental hazards—using standardized hazard classes and categories. 

• Hazard due to health: The SDS explains the route of exposure to the substance, either through inhalation, ingestion, or skin or eye contact, and acute and chronic effects. These are irritations, burns, poisoning, sensitization, carcinogenic effects, and organ toxicity. Hazard statements and symbols provide instant recognition. 

• Hazard due to physical properties: The SDS has physical property information and hazard classification (flammable liquids, compressed gases, etc.) that tells how the chemical acts at normal and elevated temperatures or when mixed with other chemicals. 

• Importance of such information: Properly communicated hazards in the SDS allow risk assessment and control, development of training materials, and emergency plans. 

Worker Protection 

• Proper handling techniques: SDSs may provide guidelines on proper handling techniques, such as no use of any open flame, preventing any generation of dust, grounding and bonding of any flammable materials, and also controlling any source of heat. 

• Preventing exposure: Exposure standards (like OSHA PEL, ACGIH TLVs, and NIOSH RELs), recommended engineering controls (ventilation and exhaust), administrative controls, and PPE recommendations help minimize exposure risk. 

• Monitoring and medical surveillance: Toxicity and exposure information help design proper monitoring and medical surveillance if required. 

• Importance of this topic: SDS-based protection approaches will minimize any acute or chronic risks of illness or injury to workers. 

Emergency Response 

• First Aid: First aid procedures for exposure via different routes of exposure—what to do if the chemical has been inhaled, ingested, or exposed to eyes or skin—and suggestions for dealing with both immediate and delayed effects. 

• Spill clean-up: Containment and clean-up procedures for small spills, as well as larger spills, are listed along with proper protective equipment, ventilation requirements, and whether absorbents or neutralizers should be used or evacuation is required. 

• Firefighting details: Information about what firefighting agents are suitable, special firefighting procedures, and the products of combustion. 

• Importance of this information: The quicker access to SDS information saves time and helps to manage the situation effectively. 

Safe Storage and Handling 

• Storage guidelines: The SDS will inform storage conditions like temperature range, ventilation, protection from the sun’s rays, and requirements for refrigeration or inert atmosphere. 

• Incompatible materials: This information includes chemicals and categories (like oxidizers, acids, bases, etc.) that need to be kept separate to avoid dangerous reactions, formation of polymers, or explosive decompositions. 

• Handling information: Information about the type of container, pressure, and precautions while transferring material using pumps or syphons is also available. 

PPE Selection 

• Gloves: The SDS recommends which gloves would be suitable to wear in terms of permeability or permeation data or, in its absence, gives general guidelines. 

• Respirators: The SDS suggests the use of respirators and the type (e.g., filtering facepiece, supplied air) but recommends consulting an industrial hygienist for fit testing and qualitative and quantitative evaluation of exposure. 

• Eye protection and body protection: The SDS recommends wearing safety goggles, face shields, protective aprons, or whole-body suits, depending on the hazard level of the chemical. 

• Why is it important: Proper choice of PPE according to the SDS and exposure assessment is necessary to avoid contact exposure and minimize injury in case engineering controls cannot be applied. 

Regulatory Compliance 

• OSHA compliance issues: The SDS is a core requirement of the Hazard Communication Standard. Employers must maintain the SDS and provide access to employees based on the information provided in the SDS. 

• Additional regulatory use: Information from SDS helps in compliance with shipping classifications by DOT, EPA (RCRA), emergency planning (Section 311/312 EPCRA), and local/right-to-know laws. 

• Why this is important: Maintaining the SDS and managing the information contained in it limits liability and potential fines. 

Environmental Protection 

• Disposal instructions: SDSs often contain information regarding proper disposal to ascertain whether or not the material in question is hazardous waste, methods of disposal, and warnings about avoiding disposal into any form of sewage or water, which could be harmed. 

• Environmental concerns: These sections provide information regarding aquatic toxicity, persistence, and bioaccumulation. 

• Importance of this topic: SDSs play a key role in preventing pollution, assisting with legal documentation, and determining waste management paths. 

Why OSHA Requires Safety Data Sheets 

Hazard Communication Standard 

• OSHA’s Hazard Communication Standard (29 CFR 1910.1200) requires chemical manufacturers, importers, and distributors to evaluate chemical hazards and provide SDSs to downstream users for every hazardous chemical they produce or import. 

• The HCS aligns with the GHS to ensure consistent classification, labeling, and SDS formatting so end users can readily locate and interpret hazard information. 

Employee Right-to-Know 

• The HCS is built on the “right-to-know” principle: workers have the right to information about hazardous chemicals in their workplace to make informed decisions about protection and safe work practices. 

• SDSs are one of the primary mechanisms for delivering that information. 

Employer responsibilities 

• Employers must maintain copies of SDSs for all hazardous chemicals used in the workplace and ensure they are readily accessible to employees during each work shift. 

• Employers must use SDS information to develop written hazard communication programs, labels and warning systems, employee training, and workplace-specific safe handling procedures. 

SDS accessibility requirements 

• OSHA requires employees to have immediate access to SDSs during their shifts. Immediate access means SDSs must be available without delay when an exposure or emergency occurs (physical or electronic access counts, as long as it is reliable during the work shift). 

• Employers must ensure that employees understand how to read SDSs and can use the information in training and emergency response. 

The 16 Sections of a Safety Data Sheet Explained 

How Safety Data Sheets Help During Emergencies 

1. Chemical Spill Scenario 

• Check the SDS for any immediate hazards; for hazard classification, see Section 2. For reactivity concerns, check out Section 10. 

• Containment: Section 6 gives guidance on the containment of the spill—whether diking is necessary, which absorbent to use, or letting the volatile vapors evaporate in the open air. 

• Personal Protection: Section 8 of the SDS provides guidance on the personal protective equipment required by the cleanup crew; if respirators are mentioned, see that the personnel who use them have been fit-tested, and they use the correct cartridges or supplied air equipment. 

• Cleanup procedure: follow the recommended cleanup procedure given in Section 6, properly segregate the collected material, and look up the guidance on Section 13 for proper disposal. 

2. Employee Exposure Scenario 

• Initial steps: With regard to exposure, Section 4 must be consulted right away. Take appropriate action in case of inhalation (move out of the way of the fresh air), ingestion (refer to a doctor without inducing vomiting unless advised otherwise), or skin/eye contact (flush thoroughly). 

• Treatment guidelines: Symptoms that will be taken into account together with the antidotes and contraindications can be found in Section 11 and Section 4. 

• Medical consultation: The SDS must be given to the attending physician and the occupational health professionals. 

3. Fire Incident Scenario 

• Extinguishants for fire suppression: Extinguishing agents (foam, dry powder, and CO₂) are discussed under Section 5 as well as those extinguishing agents that need not be used. 

• Combustion products: Information about the hazardous combustion products (CO, HCl, phosgene, etc.) is available on the SDSs, which help the firefighters wear appropriate protective gear and determine evacuation zones. 

• Procedures for firefighting: The document provides procedures for firefighting and personal protective measures, such as self-contained breathing apparatus. 

How Different Industries Use Safety Data Sheets 

1. Manufacturing and Chemical Processing 

SDSs help in designing manufacturing processes with the right engineering controls, implementing changes in formulation through a change management process, and guiding practices related to storage and segregation to avoid reactive events. SOPs in manufacturing facilities typically make reference to SDSs for transfer and dilution of chemicals. 

2. Healthcare 

Hospitals and clinics require SDSs to safely handle hazardous drugs, disinfectants, sterilants, and reagents in laboratories. SDSs are required for safe administration, spill kits for cytotoxic drugs, and segregation of waste from chemotherapy materials. 

3. Laboratories and Research 

Research laboratories use SDSs for risk assessment for experiments, SOPs in laboratories, inventory of chemicals, and training new researchers on the proper handling of novel or proprietary reagents. 

4. Construction and Trade Work 

SDSs are consulted on construction sites for solvents, adhesives, coatings, and curing agents to ensure proper ventilation, personal protective equipment, and worker training for intermittent exposure. 

5. Transportation and Logistics 

Shipping companies and carriers need SDS information for DOT classification (Section 14) and emergency response during transportation. SDSs are helpful in verifying packaging and placarding of shipments. 

6. Agriculture 

Farmers and pesticide and fertilizer handlers consult SDSs for proper application of chemicals, PPE required, environmental precautions, and chemical storage compatibility. 

Common SDS Management Challenges 

1. Missing SDSs 

• Workplaces often face incomplete SDS collections due to supplier turnover, legacy products without current SDSs, or undocumented small-volume chemicals. 

• Risk: Missing SDSs impair hazard recognition and legal compliance, increasing exposure and incident potential. 

2. Outdated SDSs 

• SDSs can be revised as hazard information improves or regulations change. Using outdated SDSs leads to incorrect labeling, improper PPE selection, and noncompliance. 

• Risk: Reliance on obsolete data undermines emergency response and regulatory obligations. 

3. Multiple Document Versions 

• Multiple SDS versions for the same product may circulate internally, causing confusion about which set of controls to follow. 

• Risk: Inconsistent practices across sites and shifts, complicating audits and incident investigations. 

4. Slow SDS Retrieval 

• Paper binders, unindexed electronic folders, or dispersed locations delay access during emergencies. 

• Risk: Delays in first aid, cleanup, and firefighting decisions increase injury severity and property loss. 

5. Paper-Based Systems 

• Paper SDS binders are vulnerable to damage, loss, and lack of off-site backup. They are less effective for multi-site organizations and shift-based access. 

• Risk: Limited accessibility, especially for remote or off-hour incidents. 

6. Audit Preparation Difficulties 

• Inadequate version control, lack of supplier documentation, or incomplete inventory reconciliation complicate OSHA inspections and third-party audits. 

• Risk: Increased citation risk and time-consuming corrective actions. 

How to Ensure SDS Access Across Your Organization 

• Maintain current SDSs: Implement a procedure for obtaining SDSs at the time of delivery of new chemicals and follow up on updates from suppliers. 

• Provide 24/7 access to SDSs: Ensure availability of the SDSs at all work hours and remotely if needed in locations where employees may be exposed; electronic access with the capability of offline backup is an effective means of meeting “immediate access.” 

• Training of employees: Incorporate SDS reading as part of a hazardous communication training program; conduct drills based on real-life scenarios while finding out the contents of the SDS. 

• Centralize the management of SDSs: Centralize the storage of the SDSs and indexing by product name, CAS number, and common synonyms of the products. 

• Audit periodically: Conduct periodic audits of completeness, correctness, and accessibility of the SDSs; reconcile the chemical inventory list with the SDS list from suppliers. 

• Maintain chemical inventory: Connect the management of SDS with current chemical inventory. 

• Establish roles and responsibilities: Assign responsibilities for SDS management (receiving dock, purchasing, and safety coordinator). 

Frequently Asked Questions 

What is the purpose of a safety data sheet? 

The purpose of an SDS is to communicate hazards and provide practical guidance for safe handling, storage, transport, emergency response, and disposal of chemicals so workers, emergency responders, and environmental managers can make informed protective decisions. 

Are safety data sheets required by OSHA? 

Yes. Under OSHA’s Hazard Communication Standard (29 CFR 1910.1200), chemical manufacturers, importers, and distributors must prepare and provide SDSs for hazardous chemicals. Employers must maintain and provide SDSs to employees. 

Who should keep the SDSs up to date? 

The manufacturers or importers of chemicals are responsible for generating proper SDSs. The employers have the responsibility for keeping up-to-date SDSs of hazardous chemicals in the workplace and ensuring the accessibility of these SDSs to employees. 

When should SDSs be updated? 

SDSs are required to be updated whenever new hazard data is available or whenever there is a change in regulation affecting the classification, labeling, and precautionary statements. Suppliers are supposed to update the SDSs once they receive the new information. 

What is the difference between SDSs and MSDSs? 

SDSs have been standardized in a 16-section GHS form. However, MSDSs were older and non-standardized. 

Are employees able to get access to SDSs electronically? 

Yes. The Occupational Safety and Health Administration allows for an electronic form of accessing SDSs provided that employees can get them promptly while working. 

What is to be done about missing SDSs? 

Missing SDSs pose a risk of being non-compliant and subjecting workers to risks of hazards that are not known. Employers need to have a procedure to obtain any missing SDSs promptly from suppliers. 

How prompt must access to SDSs be for employees? 

Employees must get immediate access to SDSs during their work shifts—that is, SDSs must be accessible without delay while using them for handling purposes and exposure assessment and emergencies. 

Are SDSs required for all chemicals? 

The SDS is needed for substances that OSHA considers to be “hazardous chemicals.” Non-hazardous substances do not need an SDS normally, but unknown substances should be treated with caution and their SDS requested from the supplier. 

How long should SDSs be retained? 

OSHA does not set a specific retention period for SDSs; however, best practice is to retain current SDSs for in-use chemicals and archived SDS versions for as long as they remain relevant to workplace incidents, medical surveillance, or regulatory investigations. Many organizations retain SDSs for the life of a product plus several years to support injury/illness records and incident investigations. 

Conclusion 

Safety Data Sheets protect workers, enable effective emergency response, support regulatory compliance, and improve chemical safety management across industries. If the SDSs are up to date, available, and appropriately incorporated in training programs and operating procedures, they help mitigate the risk of exposure and allow for quicker and more efficient actions against spillage, contamination, and fire. For EHS specialists, it is very important to have a well-organized system of SDSs based on inventory, access, audits, and employee training.