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Research paper : Development of primary standard for hydrocarbon flow and traceability system of measurement in Japan (T. Shimada et al.)−62−Synthesiology - English edition Vol.3 No.1 (2010) [7][8][9][10][11][12][13]measurement, Transactions of the Japan Society of Mechanical Engineers, B 71 (712), 2956-2983 (2005) (in Japanese).T. Shimada, R. Doihara, K. Takeda, Y. Terao and M. Takamoto: Uncertainty analysis of hydrocarbon flow calibration facility: 2nd Report, uncertainty analysis of mass measurement, Transactions of the Japan Society of Mechanical Engineers, B 72 (718), 1551-1558 (2006) (in Japanese).T. Shimada, S. Oda, Y. Terao and M. Takamoto: Development of a new diverter system for liquid flow calibration facilities, Flow Measurement and Instrumentation, 14 (3), 89-96 (2003).T. Shimada, Y. Terao, M. Takamoto, S. Ono and S. Gomi: Development of a servo PD oil flow meter for a transfer standard, Proc. 5th Inter. Symp. Fluid Flow Meas. (2002).BIPM: International Key Comparison of Liquid Hydrocarbon Flow Facilities CCM-FF-K2 (Final Report) (2008).National Institute of Advanced Industrial Science and Technology: Research on the flowmeter quality control technology for the rationalization of hydrocarbon distribution, METI Subcontract Funds FY 2007 Result Report (2008) (in Japanese).Y. Terao, T. Shimada, R. Doihara and M. Takamoto: Hydrocarbon flow standard and JCSS for hydrocarbon flow, Measurement Standards and Metrology Management, 59 (1), (2009) (in Japanese).National Institute of Technology and Evaluation: Guideline for the technical required items – Category for registration: Category (designations) of calibration method for flow volume and flow rate, Liquid Flowmeter (Hydrocarbon Flowmeter) (7th ed.) JCT20830-07 (2009) (in Japanese).AuthorsTakashi ShimadaCompleted the doctoral course at the Graduate School of Engineering, Kyoto University in 1999. Doctor (Engineering). Joined the National Research Laboratory of Metrology, Agency of Industrial Science and Technology, Ministry of International Trade and Industry (current AIST) in 1999. Has worked on the development, maintenance, and provision of the national standard for hydrocarbon flow, and the construction of the traceability system for hydrocarbon flow. In this paper, was in charge of collection and analysis of resource materials and building of the framework of the paper. Ryouji DoiharaCompleted the doctoral course at the Graduate School of Engineering, Kyushu University in 2001. Doctor (Engineering). Joined AIST in 2001. Based on the research for the hydrocarbon flow measurement, has worked on the development of mass flowmeter, the improvement of the new diverter, and the development of hydrocarbon medium-flow standard facility that will decrease the lower limit of the national standard. In this paper, was in charge of the field experiments for the technology to extend the standard range in the construction of an efficient traceability system. Yoshiya TeraoCompleted the master course at the Graduate School of Engineering, Nagoya University in 1983. Joined the National Research Laboratory of Metrology, Agency of Industrial Science and Technology, Ministry of International Trade and Industry (current AIST) in 1983. Worked on the development, maintenance, and provision of the national standard for liquid flow and wind speed, and the construction of their traceability system. Doctor (Engineering) in 1997. Chief of Flow Standards Section, Flow Measurement Section, National Metrology Institute of Japan in 2001. Chief of Liquid Flow Standards Section in 2005. In this paper, was mainly in charge of the project progress management.Masaki TakamotoCompleted the master course at the Graduate School of Engineering, Hiroshima University in 1975. Joined the National Research Laboratory of Metrology, Agency of Industrial Science and Technology, Ministry of International Trade and Industry (current AIST) in 1975. Has worked on the R&D for the standard and measurement technology for flow rate and flow velocity. Completed the PhD course in Aeronautical Engineering at the Imperial College in 1986 (PhD). Head of the Fluid Flow Division, AIST in 2001. Chairman of Working Group of Fluid Flow, Comité Consultatif pour la Masse et les grandeurs apparentées, Comité International des Poids et Mesures from 2004 to present. Contributed to this research as a project leader for the construction of national standard for hydrocarbon flow in 1999~2002, and as a project leader of high-precision research for hydrocarbon flowmeter through the METI Subcontract Fund in 2004~2007.Discussions with Reviewers1 Standard and the calibration of the tax meter Comment (Mitsuru Tanaka, Research Coordinator, AIST) In the researches for measurement standards, I think the methodology to present the technological basis on which the government makes decisions in the management of the system is “synthesiology”. The content of the paper steps deeply into the discussion assuming the decision by the government, and I am afraid that it may mislead the readers. Therefore, why don’t you focus on the descriptions for technology synthesis and the evaluation only from the objective attributes such as precision, cost, diversity of calibration subject and range, or international competition? Answer (Takashi Shimada) In chapter 1 and chapter 2, we corrected that the new service system for hydrocarbon flow standard was constructed, because there were rising demands for ranges that fall outside of the precision, liquid type, and flow range of the conventional standard system. 2 Title of the paper Comment (Mitsuru Tanaka) The original title “Establishment of the hydrocarbon flow

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