A safety data sheet (SDS) (in English, Safety Data Sheet or SDS) is a document that indicates the particularities and properties of a certain substance for its most appropriate use. The main objective of this sheet is to protect the physical integrity of the operator during the handling of the substance.

This sheet or card contains detailed instructions for its handling and aims to reduce occupational and environmental risks. It is designed to indicate the procedures in an orderly manner to work with substances in a safe manner. The sheets contain physical information about the product, such as its melting point, boiling point, etc.; They also include its toxicity, health effects, first aid, reactivity, storage, disposal, necessary protection and, ultimately, all the care necessary to handle dangerous products safely. The format of these sheets may vary depending on their manufacturer or according to the legislation of different countries.

Many products necessarily include their safety data sheet on the label itself. These also include, in addition to health risks, environmental risks. The labels contain various standardized hazard symbols for quick identification and risk and safety phrases according to local conventions.

Safety sheets are not so much designed for a specific general consumer as for risks at work, since there are many products that are used daily by professionals. This causes the risks to increase considerably.