**	** Research Institute for Material and Chemical Measurement National Metrology Institute of Japan (NMIJ)
	Reference Material Evaluation Group			Top Members Publications JP CRMs Access Inquiry NMIJ CRMs | NMIJ | AIST
The Reference Material Evaluation Research Group researches inorganic analytical technologies traceable to the International System of Units (SI) and produces NMIJ Certified Reference Materials (NMIJ CRMs) using such technologies. 　The NMIJ CRMs for pH standard solutions and metal/non-metal ion standard solutions produced by this research group are used as a primary standard in the traceability system of the Japanese Measurement Law (JCSS), and contribute to ensuring SI traceability and reliability of JCSS inorganic reference materials.  Copyright 2024 - AIST - NMIJ - Reference Material Evaluation Group　 　* Last updted: 1 November 2024