Reference Standards

Contact Information

Reference Standards:
rstech@usp.org

Customer Service:
custsvc@usp.org

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Your confidence in your work is bolstered by your confidence in your standards. USP establishes primary standards for ensuring quality in pharmaceutical development & manufacturing. USP Reference Standards are rigorously tested and evaluated by multiple independent commercial, regulatory, and academic laboratories to confirm accuracy and reproducibility. We offer the only publically available, official documentary standards for pharmaceutical ingredients in the USP-NF that link directly with a primary reference standard. When you use these standards together, you can be assured that your product meets compliance requirements and establish the quality benchmark against which you compare your results.

reference standards

Learn about Newly-Released
USP Reference Standards!


Providing you with the most up-to-date,
primary reference standards to help
you create quality medicines for
advancing public health.

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Public Health


Partner with USP to set the standard
and create quality standards for
medicines, supplements, and food
ingredients.