The Office of Reference Materials at NIST is rapidly approaching the time of the year where we are required to conduct an annual SRM inventory. Therefore, our shipping department will not be processing any orders from Wednesday, September 22, 2021 through Thursday, September 30, 2021. All orders will begin to be shipped on Friday, October 1, 2021.
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NIST Standard Reference Materials 2021 Catalog For the most up-to-date information, please consult our website at https://www-s.nist.gov/srmors.