Length Standards Section
Length Standards are foundation of industries and sciences. We at Length Standards Section devote ourselves to various tasks in order to establish metrological standards and calibration system. We construct efficient hierarchical traceability system in cooperation with calibration laboratories. At the same time, we conduct research and development activities regarding advanced length measurement science and technology.
What's New
- Released on Apr. 23, 2012
- The Japanese Prototype Metre and related standards will be displayed in the special exhibition of "Newly designated National Treasures and Important Cultural Properties" at the Tokyo National Museum (New window will open) from Apr. 28, 2012 (Sat) to May 13, 2012 (Sun).
- Released on Apr. 20, 2012
- The Cultural Affairs Council of the Ministry of Education, Culture,
Sports, Science and Technology nominated the Japanese Prototype Metre and
related standards on the list of the Important Cultural Property.
Both the historic and academic value on the weights and measure system
in Japan was recognized.
Length Standards Section cooperates in maintenance and records investigation of the Japanese Prototype Metre and related standards because our predecessor had been maintaining and calibrating them. - Released on Apr. 18, 2012
-
Situation of recovery as of Apr. 18, 2012
is released.
(Calibration services of line scales was resumed.) - Released on Mar. 28, 2012
- ASNITE accreditation has been renewed on February 8, 2012
in consequence of ASNITE surveillance and CIPM peer review
conducted in September 2011.
Accreditations of gauge blocks, line scales, electronic distance meters, laser interferometers have been renewed. Refractive index has been newly accredited. - Released on Feb. 22, 2012
-
Situation of recovery as of Feb. 22
is released.
(Calibration services of long gauge blocks was resumed.) -
Show all releases.
Update List
- Apr. 18, 2012
- Calibration Authority of line scales has been replaced.
- Apr. 11, 2012
- Update Members page.
(Mr. Arai received master's degree and graduated from Tokyo University of Science. Pages of Dr. Hirai and Dr. Hori have been updated.) - Mar. 28, 2012
- Calibration service of
gauge block already wrung onto a platen has
been added. List of international comparison of gauge blocks
has been updated.
Refractive index has been ASNITE accredited. - Sep. 27, 2011
- Update Members page.
(Dr. Wu, a visiting researcher, will stay our section for one year.) - June 2, 2011
- Update Members page.
(Another duty of Dr. Bitou at Innovation Promotion Headquarters has finished.) -
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