Product documentation and specification are a central feature of our quality assurance. Each individual product has its own precise specification. Compliance with that specification is carefully monitored by the quality control department to ensure that uniformly high quality standards are met.

The following documents and data are available to confirm product identity, quality and safety:

• Certificate of Analysis, CoA
  The certificate of analysis is available on request for each product or can be viewed on-line.
  
  

  PDF 45KB

  
  
  
  
• Material Safety Data Sheets, MSDS
  Find the largest collection of material safety data sheets, 100,000 in all, free of charge on-line.
  
• Specification Sheets
  Current specification sheets may be requested at any time from your local Sigma-Aldrich office. Catalogue and on-line specifications are valid at the time of release.
  
• Further Information
  Further, special certificates are available on request free of charge or for a nominal charge.
  
  

  PDF 263KB

  
  
  
• Expiry Dates
  Several hundreds of products have expiry dates and many more are to come. They only apply in the event of correct storage in the unopened original container. However, many of these products can still be used after the expiry date. Warranties are given pursuant to our conditions of sale and delivery.