The National Institute of Standards and Technology (NIST) has released a suite of green tea reference materials to help manufacturers evaluate the composition of their products and assure researchers of the accuracy of analytical methods for studying the human health effects of this popular beverage and dietary supplement. The new standard reference materials (SRMs) were prepared as part of an ongoing collaboration with the National Institutes of Health Office of Dietary Supplements.

Use of NIST’s of green tea reference materials will improve the measurement precision and accuracy of measurements of constituents in green tea products available as dietary supplements.

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