At a Glance
- An SDS, formerly called an MSDS, tells you a chemical’s hazards, safe handling, storage needs, and emergency measures.
- OSHA requires chemical manufacturers and importers to send an SDS with the first shipment of a hazardous chemical.
- Every SDS follows the same 16-section order, so you can compare suppliers section by section.
- OSHA does not enforce sections 12 to 15 (ecological, disposal, transport, regulatory), so verify them separately.
- An SDS covers hazards and handling. It does not replace a Certificate of Analysis or a technical data sheet.
- Ask for the SDS in English before you order, and confirm it matches the grade you are buying.
What You’ll Learn
You will learn what an SDS is for, how to read its 16 sections, and what to request from suppliers.
Introduction
Every hazardous chemical you buy should come with a Safety Data Sheet. Whether it protects your team depends on who reads it, and when. The purpose of MSDS documents, now SDS, is to show how a chemical can harm people and the environment. That information is most useful before the chemical reaches your site, when you can still change the order.
This guide explains how buyers use these documents in chemical procurement. It covers what each section contains, how procurement, safety, and compliance teams apply it, and what to ask suppliers for. For the history of the name change, see our MSDS vs SDS guide.
It is written for procurement, plant, and EHS teams that buy industrial and specialty chemicals in the United States.
Understanding MSDS and SDS
MSDS stands for Material Safety Data Sheet, and this full form has been replaced by Safety Data Sheet (SDS). OSHA describes the content as largely the same as the MSDS. What changed is the layout, because every SDS now follows one 16-section format, as set out in OSHA’s SDS brief.
The change followed OSHA’s alignment of its Hazard Communication Standard with the Globally Harmonized System (GHS). GHS is a common approach to classifying chemicals and communicating their hazards. Our guide to GHS classification and labeling explains the labels.
The purpose of an SDS is therefore unchanged. It tells buyers, workers, and responders what a chemical is, how it harms, and how to handle it. Older MSDS sheets may predate the 16-section format, so ask your supplier for a current SDS.
The Core Purpose of MSDS in Chemical Procurement
What an MSDS is used for comes down to five functions. They are worker safety, regulatory compliance, safe handling, risk management, and emergency response. Each one below shows what the sheet provides and how a buyer uses it.
1. Ensuring Workplace Safety
The primary purpose of an SDS is to protect workers by describing hazards and safe use. OSHA says employers and workers need this information to protect themselves from hazardous chemical exposures.
Section 2 gives the hazard classification and label elements. Section 11 covers health effects, and Section 8 covers protective equipment. Buyers use these sections to brief staff and to choose gloves, eye protection, or respirators before the first delivery. Follow the SDS for your specific product.
2. Enabling Regulatory Compliance
In the U.S., the SDS is part of OSHA’s Hazard Communication Standard. Manufacturers and importers must provide an SDS with the first shipment, and again with the first shipment after an update. Employers must keep the sheets readily accessible to workers during each shift.
Sections 14 and 15 list transport and regulatory information, which help you check shipping and other agency requirements. OSHA does not enforce the content of sections 12 to 15, so confirm that content with your compliance team. Our Hazard Communication Standard explained guide covers the wider rules.
3. Informing Safe Handling and Storage
Section 7 covers handling and storage, and Section 10 covers stability and reactivity. Together they show which materials to keep apart, which conditions to avoid, and which containers suit the product.
Buyers use these sections to plan storage areas, choose container materials, and write receiving procedures. Use the values on the supplier’s SDS for your grade, because storage conditions differ between products and concentrations.
4. Supporting Risk Management
The SDS lets a buyer compare risks before choosing a product. Section 8 lists exposure controls and protective equipment. Section 4 lists first aid measures. Section 12 gives ecological information, although OSHA does not enforce its content.
If two products do the same job, compare their sheets to see which has the lower hazard classification. Involve your EHS team in that decision.
5. Facilitating Emergency Response
Sections 4, 5, and 6 cover first aid, firefighting, and accidental release measures. These are the pages your team and any responders reach for first during a spill, fire, or exposure.
Buyers use them to write emergency plans and to keep sheets where people can find them quickly. OSHA allows binders or computers if workers can reach sheets without leaving their work area. A backup must exist for power outages. Share sheets with local responders if your emergency plan calls for it.
Structure of an MSDS/SDS: The 16 Sections
Every SDS lists the same 16 sections in the same order. That lets you compare sheets from different suppliers side by side. Reading the same SDS sections in the same sequence also makes gaps easier to spot.
Sections 12 to 15 are included for consistency with GHS. OSHA does not enforce their content because other agencies handle those matters.
|
Section |
Title |
What it covers |
|
1 |
Identification |
Chemical name and supplier details |
|
2 |
Hazard(s) Identification |
Hazard classification |
|
3 |
Composition/Information on Ingredients |
Ingredients |
|
4 |
First-Aid Measures |
Actions after exposure |
|
5 |
Fire-Fighting Measures |
Suitable extinguishing methods |
|
6 |
Accidental Release Measures |
Spill response steps |
|
7 |
Handling and Storage |
Handling precautions and storage conditions |
|
8 |
Exposure Controls/Personal Protection |
Exposure limits and protective equipment |
|
9 |
Physical and Chemical Properties |
Physical and chemical property data |
|
10 |
Stability and Reactivity |
Incompatible materials and conditions to avoid |
|
11 |
Toxicological Information |
Health effects |
|
12 |
Ecological Information |
Environmental impact (not enforced by OSHA) |
|
13 |
Disposal Considerations |
Disposal methods (not enforced by OSHA) |
|
14 |
Transport Information |
Shipping information (not enforced by OSHA) |
|
15 |
Regulatory Information |
Other regulatory information (not enforced by OSHA) |
|
16 |
Other Information |
Revision date and other notes |
Practical Applications in Chemical Procurement
Procurement teams get the most from an SDS at three points: before purchase, at receipt, and during audits. The steps below turn the sheet into routine checks.
Supplier Evaluation
Ask every supplier for the SDS before you order, and compare it with the grade you plan to buy. Check that it is in English, names the supplier, and shows a revision date in Section 16. Request the Certificate of Analysis and technical data sheet separately, because the SDS does not replace them. Our guide to supplier safety measures lists the documents a reliable supplier should provide.
Risk Assessment
Read Sections 2, 8, and 11 first. They give the hazard classification, exposure controls, and health effects. Together these show the risk a product adds to your site. When two products can do the same job, compare their sheets and involve your EHS team before choosing.
Training and Safety Programs
Employers must train workers on the hazardous chemicals in their work area, including where the SDSs are kept. Use the SDS to teach the protective equipment, first aid steps, and spill actions for each product. Hold the training at initial assignment and when a new chemical hazard enters the work area.
Storage and Handling Design
Use Sections 7 and 10 to plan storage before the first delivery. They list handling precautions, incompatible materials, and conditions to avoid. Use them to keep reactive products apart and choose suitable containers. Confirm the details with the supplier for your specific grade.
Emergency Preparedness
Keep Sections 4, 5, and 6 where shift teams and responders can reach them quickly. Build spill and exposure plans around those sections and test them in drills. Review the plan whenever an updated SDS changes the advice.
Regulatory Audits
Keep an SDS on file for each hazardous chemical you use, and keep it readily accessible during each work shift. Electronic copies are allowed if they create no barriers to immediate access. Check Section 14 against your shipping paperwork and Section 16 for the revision date.
Challenges and Solutions
Buyers run into the same few problems with SDSs. Most can be solved by asking the supplier the right question before the first order.
Inconsistent Formats
Older sheets may not follow the 16-section order, which makes them hard to compare. Ask the supplier for a current SDS in the 16-section format.
Missing or Incomplete Data
Some sheets leave fields blank or mark data as not available. Ask the supplier to explain each gap in writing. Have your EHS team decide whether the missing data affects your use.
Language Barriers
A U.S. SDS must be in English, and it may also be provided in other languages. If a sheet arrives only in another language, ask the supplier for an English version.
Worker Awareness
A sheet helps only if staff know where it is and how to read it. Train workers on the SDS format and keep the sheets within reach of their work area.
Environmental Compliance
Section 13 gives disposal considerations, but OSHA does not enforce its content and local rules may differ. Check disposal and spill requirements with the relevant environmental agency before relying on the SDS alone.
Sourcing Tips for U.S. B2B Buyers
Good sourcing starts with the document request, not the purchase order. Ask for the SDS before you commit, check it against your grade, and keep the file for audits.
|
Document |
What it tells you |
When to ask |
|
Safety Data Sheet (SDS) |
Hazards, handling, storage, and emergency measures |
Before the first order |
|
Technical Data Sheet (TDS) |
Product specifications |
During product selection |
|
Certificate of Analysis (COA) |
Test results for a batch |
Before you approve a product for production |
- Request the SDS before ordering, and confirm it matches the grade and concentration you will buy.
- Check the revision date in Section 16 and ask whether a newer version exists.
- Compare Section 14 with your shipping paperwork and your carrier’s requirements.
- Review the sheet with your EHS team before the first delivery.
- Store each SDS where workers can reach it during every shift, on paper or electronically.
Choose the SDS alone if you are screening hazards early in product selection. Request the SDS, TDS, and COA together if you are approving a supplier for regular purchases. Ask for a corrected SDS and a written explanation if any section is missing, blank, or in another language.
To ask about documents for a product you plan to buy, Request a Quote.
How Elchemy Supports Buyers
Elchemy product pages list the documents available for each product. The poly aluminium chloride page is one example. It states that every order ships with a Certificate of Analysis, Technical Data Sheet, and GHS-aligned Safety Data Sheet.
For other products, tell the team which grade you plan to buy and where it will be delivered. Then check that the SDS you receive matches that grade. Request a Quote to start the conversation.
FAQs
1. How often does an SDS have to be updated?
Manufacturers and importers must add significant new hazard information to the SDS within three months. They must then send the updated sheet with the first shipment after the update. Check the revision date in Section 16 and ask your supplier whether a newer version exists.
2. Who is responsible for preparing the SDS?
The chemical manufacturer or importer prepares the SDS. Distributors must pass the sheet and any updates to other distributors and employers. As a buyer, you do not write it. As an employer, you must keep it accessible and train workers on it.
3. Is an SDS the same as a product label?
No. A label sits on the container, while the SDS is a separate document with full detail. OSHA requires employers with hazardous chemicals to have both labels and SDSs available. Check the label when goods arrive and match it to the SDS you hold on file.
4. Can I use an SDS from a supplier outside the U.S.?
An SDS used in the U.S. must be in English, and the manufacturer or importer must ensure it follows the 16-section order OSHA requires. If an overseas sheet uses another language or layout, ask for a U.S.-ready version before accepting the shipment.
5. Does every chemical need an SDS?
OSHA requires an SDS for each hazardous chemical that a manufacturer, distributor, or importer supplies to downstream users. If a product is not classified as hazardous, that requirement may not apply. Ask the supplier how it classifies the product, and request any SDS it holds before you order.
6. What should I do if a supplier cannot provide an SDS?
For a hazardous chemical, the manufacturer or importer must provide an SDS with the initial shipment. If a supplier cannot share one before you order, treat that as a supplier-quality warning. Pause the order and ask your EHS team how to proceed.
Why MSDS Matters in Procurement
An SDS is the earliest view a buyer gets of a chemical’s hazards, handling needs, and emergency measures. Read it before you order, not after the drums arrive.
Ask each supplier for a current SDS in English and check it against your grade. Share it with the teams that store, handle, and respond to the product. Request the COA and TDS separately if your process needs them.
If you are comparing suppliers for a hazardous chemical, Request a Quote and include the grade and delivery destination.
