Your Science Is Our Passion


Every manufacturer of certified reference materials supplies a certificate of analysis with their product, but not all certificates are alike. We know because SPEX CertiPrep has been supplying the most comprehensive certificate in the industry for years. To download the certificate for your particular lot number, use the convenient online search below.  You must be logged in to view and download certificates.  Don't have a web log in?  Register now!

SPEXertificate Download

To search for a SPEXertificate, please enter a Lot Number in the space below.


Save 15% when you enter promo code SPRING15-16
on your next online order of $100 or more

  • Promo code valid on Organic and Inorganic products.
  • Minimum order amount is $100
  • Must enter promo code SPRING15-16 when ordering.
  • Valid on direct, US orders only.
  • Not valid on Flux, Oil Standards and ERA QC Samples.

Not valid with any other promotions. One per customer. Offer expires 6/15/2016.