COA, SDS and TDS documents support quality review, safety communication and technical evaluation during chemical sourcing. Each document has a different role in the purchasing process.
COA: Certificate of Analysis
A COA is a batch-focused document that usually includes tested quality items such as assay, appearance, moisture or other grade-specific parameters.
For specialty chemicals, buyers often use a COA to compare batch quality with an internal specification or previous supply record.
SDS: Safety Data Sheet
An SDS communicates hazard classification, handling, storage, transport and emergency information. It is important for internal compliance review and logistics planning.
SDS availability and classification should be checked before international shipment because requirements may vary by destination and product class.
TDS: Technical Data Sheet
A TDS summarizes technical properties, recommended handling and application notes. It is especially useful for dispersions, fillers, monomers and functional additives.
A TDS does not replace application testing, but it helps buyers decide whether a grade is suitable for further evaluation.
FAQ
Are COA, SDS and TDS always available?
Availability depends on product, batch, supplier and destination requirements. They are provided upon request when available.
Which document is needed for shipping review?
SDS is typically the first document used for classification and logistics review, with other documents added as needed.
Can a TDS confirm product performance?
A TDS supports technical screening, but final performance should be validated in the buyer's own formulation or process.
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All products are supplied for research, development and industrial use only. Availability, shipping method and documentation may vary depending on destination country, product classification and regulatory requirements.