Description General description National Measurement Institute (NMI) Australia is a world-renowned metrology institute, maintaining a broad portfolio of Certified Reference Materials (CRMs) for use in sports, forensics, clinical and environmental testing applications. NMI Australia CRMs are manufactured under the scope of ISO 17034, and are certified in an ISO/IEC 17025 accredited testing laboratory. This item ships directly from Australia; please allow up to 2 weeks for delivery.