The National Institute for Environmental Studies (NIES) developed "Pepperbush" as Japan's first Certified Reference Material (CRM) in 1979. Since then, we have been developing environmental reference materials useful for environmental monitoring.

Environmental CRMs are utilized to evaluate new analytical methods and to control the accuracy of pretreatment and instrumental analyses. 

Based on the opinions of researchers and the needs of society, the NIES produces CRMs and Reference Materials (RMs).

ISO Guide 30: 2015
・RM: material, sufficiently homogeneous and stable with respect to one or more specified properties, which has been established to be fit for its intended use in a measurement process
・CRM: reference material (RM) characterized by a metrologically valid procedure for one or more specified properties, accompanied by an RM certificate that provides the value of the specified property, its associated uncertainty, and a statement of metrological traceability

If you have comments about the CRMs and RMs you would like to receive, please send them to the email address below. We will continue to produce environmental CRMs and RMs that reflect your opinions and requests.

National Institute for Environmental Studies
Health and Environmental Risk Division
Center for Environmental Standards and Measurement/CRM
16-2 Onogawa, Tsukuba-Shi, Ibaraki, 305-8506 Japan
E-mail: nies.crm(a)nies.go.jp ※Change '(a)' to '@'
FAX: +81-29-850-2900

• HarmoNIES No.1Environmental Certified Reference Materials [360KB]