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STANDARD REFERENCEMATERIALS

Standard Reference Materials are certified reference materials (CRMs) that can be used to help develop accurate methods of analysis, to calibrate measurement systems used to measure a property at the state-of-the-art limit.

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STANDARD REFERENCEDATA

Standard Reference Data cover a broad range of scientific disciplines including atomic and molecular physics, chemical and crystal structures, fluids, material properties, biotechnology, optical character recognition and more. Data products include web applications, personal computer products, site licenses, subscriptions and distributor agreements. The SRD data program includes the Journal of Physical and Chemical Reference Data.

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Face Coverings Made From Layered Cotton Fabric Likely Slow the Spread of COVID-19 Better Than Synthetics, New Study Finds

JUNE 29, 2020

Researchers have completed a new study of how well a variety of natural and synthetic fabrics filter particles of a similar size to the virus that causes COVID