How to Correctly Read and Use a Safety Data Sheet (SDS) for Industrial Chemicals: A Guide for Buyers and Technologists

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A Safety Data Sheet (SDS) is an indispensable source of information for anyone working with industrial chemicals. Yet, we often encounter situations where its content remains unused—whether due to a lack of time or unclear interpretation. The SDS contains critical data on physico-chemical properties, health and environmental risks, and proper procedures in case of spills or fires. For buyers and technologists, it is crucial to be able to quickly evaluate this information to prevent not only safety incidents but also financial losses caused by improper storage or application. In this article, we will explore how to structure an SDS, what to focus on when reviewing it, and how to practically apply its content in the production process.

Why the Safety Data Sheet (SDS) Is a Key Document for Every Buyer and Technologist

A Safety Data Sheet (SDS) is a fundamental document that accompanies every industrial chemical raw material on the European Union market. Its importance goes beyond mere legislative obligation – it serves as a comprehensive source of information about the substance's properties, its risks, and proper handling. For buyers and technologists, the SDS is an indispensable tool when selecting raw materials, planning production processes, and ensuring worker safety. Without it, responsible decisions cannot be made regarding the purchase, storage, or handling of chemicals, even in the case of seemingly "harmless" products such as polyols or surfactants.

The SDS is required by the REACH regulation and must be provided by the supplier free of charge and in the language of the country where the substance is placed on the market. The document contains 16 mandatory sections covering everything from substance identification to physico-chemical properties and disposal instructions. For buyers, section 15 (regulatory information) is particularly crucial, as it states whether the substance is subject to restrictions or authorisation. Technologists, on the other hand, focus on sections 7 (handling and storage) and 8 (exposure limits), which directly influence the design of production processes and protective measures.

How to correctly interpret identification and classification data (Sections 1–3 of the SDS)

The first three sections of the Safety Data Sheet provide basic identification and classification data about the chemical substance or mixture. Section 1 contains the product's trade name, supplier details, and an emergency contact. It is important to verify here whether the SDS is up to date – the issue or revision date should not be older than 5 years unless there have been significant changes in classification or regulations. Section 2 then provides the substance's classification according to the CLP/GHS regulation, including hazard pictograms, standardised hazard statements (H-phrases), and safety instructions (P-phrases).

Section 3 is key for identifying the product composition. For mixtures, all components with a concentration higher than 0.1% (or even lower for carcinogenic, mutagenic, or reprotoxic substances) must be listed, including their classification. For buyers, it is important to compare this data with customer requirements—for example, if a customer requires phthalate-free products, this information must be clearly traceable. Technologists will find data here on hazardous impurities or stabilizers that may affect compatibility with other raw materials or the manufacturing process.

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Physicochemical properties and safety measures (Sections 9–11 of the SDS)

Section 9 of the safety data sheet summarizes the physico-chemical properties of the substance, such as boiling point, melting point, density, solubility, or pH. This data is crucial for technological processes – for example, the flash point determines whether a substance is flammable and what measures need to be taken during storage and handling. For surfactants or coating additives, solubility in water or organic solvents is also important, as it affects their processability. Section 10 then describes the stability and reactivity of the substance, including conditions to avoid (e.g., high temperatures, moisture).

Section 11 contains toxicological information, such as effects from inhalation, ingestion, or skin contact. This data is essential for assessing risks to workers and designing appropriate protective measures. For example, irritant substances require suitable personal protective equipment (PPE), such as gloves or safety goggles. For buyers, it is important to verify whether the supplier provides relevant toxicological data based on standard test methods, rather than just general statements like "may cause irritation".

Practical Use of SDS in Purchasing, Storage, and Handling of Chemicals

A safety data sheet is not just a formal document – its proper use can prevent serious operational issues. When purchasing raw materials, the SDS should be compared with the requirements of the production process and the company’s internal regulations. For example, if a production line operates at high temperatures, it is necessary to check whether the substance releases hazardous gases (Section 10). For storage, compatibility with other chemicals is key – some substances cannot be stored together due to the risk of reaction (e.g., acids and bases). This information can be found in Section 7.

For handling chemicals, Section 8 is crucial as it lists exposure limits (e.g., PEL or OEL) and recommended personal protective equipment. Technologists should consider this information when designing work procedures and employee training. For example, in the case of volatile substances, adequate ventilation or extraction must be ensured. Finally, Sections 13 and 14 provide guidelines for disposal and transport, which are important for compliance with environmental regulations and safety in logistics.

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How SDS Assists in Risk Assessment and Planning Protective Measures (Sections 7–8)

A Safety Data Sheet (SDS) is not just a formal document – its Sections 7 and 8 provide specific guidance on how to minimise risks when working with chemical substances. Section 7 focuses on instructions for safe handling and storage, which are essential for accident prevention. For example, you will find recommended temperature ranges for storage, information on compatibility with other materials, or guidelines for handling packaging. For flammable substances, it is often stated that they must be stored separately from oxidising agents to avoid the risk of fire or explosion. This information enables technologists to design safe working procedures and buyers to select appropriate storage conditions from suppliers.

Section 8 then describes in detail personal protective equipment (PPE) and exposure limits, which are key to protecting employees' health. Here, you will learn whether it is necessary to use respirators, protective gloves, or goggles, and which materials are suitable for this equipment (e.g., nitrile instead of latex for substances with organic solvents). Exposure limits, such as PEL (Permissible Exposure Limit) or DNEL (Derived No-Effect Level), specify the maximum permissible concentration of a substance in the workplace air. These values serve as the basis for designing ventilation systems or for decisions on process automation where exposure is high. Correct interpretation of this data helps companies not only comply with legislation but also reduce costs related to sick leave and compensation.

SDS and Supply Chains: How to Verify Compliance with REACH and CLP Before Purchasing

When selecting a supplier of chemical raw materials, the Safety Data Sheet (SDS) is one of the most important tools for verifying compliance with REACH and CLP regulations. Section 15 of the SDS contains information on the registration of the substance under REACH, including the registration number, which confirms that the substance has undergone risk assessment and is legally placed on the EU market. If a substance is registered only for certain uses (e.g., industrial but not consumer), these restrictions must be clearly stated. Buyers should verify whether the intended use of the substance in their production process falls within the permitted categories; otherwise, there is a risk of legal sanctions or issues with inspection authorities.

Another critical point is the classification of the substance according to the CLP Regulation (Classification, Labelling and Packaging), which is stated in Section 2 of the SDS. Here, the substance is assigned to the relevant hazard classes (e.g., corrosive, flammable, toxic to aquatic life) along with corresponding warning symbols and standard hazard statements (H-phrases) and safety instructions (P-phrases). This information must be consistent with the label on the packaging and the supplier’s technical documentation. If the SDS contains ambiguities or missing data (e.g., missing H-phrases for a classified substance), this is a warning sign that the supplier may not fully comply with legislative requirements. In such a case, it is advisable to request an updated SDS or consider working with another supplier who provides transparent and complete documentation.

How SDS Supports Sustainability and Environmental Aspects in Industrial Production

Modern Safety Data Sheets (SDS) no longer address only workplace safety but increasingly include information on the environmental impacts of chemical substances. Section 12 of the SDS covers ecotoxicological properties, such as toxicity to aquatic organisms, persistence in the environment, or bioaccumulation potential. This data is crucial for companies aiming to minimize their ecological footprint and meet sustainable production requirements. For example, substances labeled as PBT (persistent, bioaccumulative, and toxic) or vPvB (very persistent and very bioaccumulative) should be replaced with less hazardous alternatives where technically feasible.

The SDS also assists in fulfilling reporting requirements under the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) Regulation, particularly concerning substances of very high concern (SVHC). If a substance contains a component listed on the SVHC list in a concentration exceeding 0.1%, this information must be stated in Section 3 of the SDS, and the supplier is obliged to provide additional data upon request. For purchasers and technologists, this means they can better plan the substitution of hazardous substances and avoid raw materials that could lead to future restrictions or bans. Thus, the SDS contributes not only to safety but also to the long-term competitiveness of a company in a market where environmental standards are becoming increasingly stringent.

Do you have questions about safety data sheets?

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