sugi:sigma
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Check real Purity for chemicals ordered via www.sigmaaldrich.com
Chemicals are often sold in different levels of purity. To check the real purity of your bought product, follow the steps:
- search for your product
- click on “Safety & Documentation”
- Enter Lot No. in “Certificate of Analysis” under documents on the right side
- you receive a PDF file when you confirm your search, test results are listed here
To check purity before ordering a product, call Sigma-Aldrich (+49 89 6513 0) and ask for the actual Lot No. (“Chargennummer” in German)
sugi/sigma.1480072434.txt.gz · Last modified: by johann