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Q: Are the DIN Certified Standards of better quality than the regular products? 


All PSS standards are produced under the most strict quality environment.  
When you purchase DIN Certified Standards, you are actually purchasing the additional data that is collected on a particular lot number, other than the data obtained with Conventional Gel Permeation Chromatography.
Usually the extra documentation presented in a DIN certified standard is required by GMP/GLP protocols. 

Q: Why aren't the DIN Quality Certificates posted on-line

A: The additional information is very valuable, and therefore the DIN Quality Certificates are not available to every website  visitor. Contact us for more information

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