A Technical Data Sheet (TDS) and a Safety Data Sheet (SDS) can both describe the same product, but they serve different documentation roles.
TDS: technical product information
A TDS commonly summarizes product properties, intended applications, performance characteristics or other manufacturer technical information. Its format can vary.
SDS: standardized hazard information
An SDS follows OSHA's standardized 16-section structure for workplace hazard communication. It contains defined categories of hazard, control and technical information for covered hazardous chemicals.
The level of standardization is different
OSHA specifies SDS section headings and required information. A TDS does not use that OSHA-mandated 16-section structure.
The purpose is different
The TDS is primarily a technical-reference document. The SDS supports hazard communication, worker access to safety information and workplace chemical-safety programs.
Neither automatically replaces the product label
The product label remains the direct source of container-level information, and regulated labels can carry legally enforceable use conditions.
Practical takeaway
Use the TDS for technical product context and the SDS for standardized workplace hazard information. Where both exist, they should refer to the same exact product and current documentation set.