NIST (US National Institute of Standards and Technology) and VSL experts have worked hard to deliver the new edition of the Declaration of Equivalence (DoE). The new statement is valid from July 1st, 2020 and for a period of two years. The DoE recognizes the equivalence between the Primary Reference Materials in gaseous form developed and maintained at both institutes. At the same time, it confirms the long-term close collaboration that has been in effect for more than 25 years.
To view the new DoE click here.