1. Improvement of the calibration and measurement capability of large weights in NMIJ (In the range from 2000kg to 5000kg);Sun,2007
2. OIML R 111, Weights of classes E1, E2, F1, F2, M1, M1–2, M2, M2–3, M3 – Part 1: Metrological and Technical Requirements, International Organization of Legal Metrology, 2004.
3. Comparator Balances Catalog;Brochure,2015
4. Operating Instructions – Sartorius CCE Series, Electronic Mass Comparators, Sartorius AG, 2007.
5. Revised formula for the density of moist air (CIPM-2007);Picard;Metrologia,2008