Back to your search result


This Standard Reference Material (SRM®) is intended primarily for use in evaluating the accuracy of procedures for the determination of creatinine in human urine. It is also intended for use in validating working or secondary reference materials. NIST-3667 was prepared from normal human urine collected from male and female donors, and the creatinine concentration has not been modified. A unit of NIST-3667 consists of one bottle of 10 mL frozen human urine. /// Sample value(s) - please ask for current certificate.



Certificate of Analysis (specimen)

Reference Material CoA specimen: for the current lot, please contact your customer service representative at

Product data sheet

View all available product details e.g. description, analytes/parameters, CAS Number, concentrations/values, sales unit/product format, method, source, transport information

National Institute of Standards and Technology

NIST provides over 1300 Standard Reference Materials® as well as articles and practice guides describing the development, analysis and use of SRMs.

NIST Standard Reference Materials are used by analytical laboratories in industry, academia and government in order to facilitate commerce and trade and to advance research and development. The SRMs are produced by the engineering laboratory, the material measurement laboratory, and the physical measurement laboratory at NIST. They are available for chemical composition, physical properties, and engineering materials.