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Accession number;07A0043243
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| Title;New JIS mark certification system and calibration of thermal conductivity for thermal insulation materials |
| Author;
FUJIMOTO TETSUO
(Japan Testing Center for Construction Materials, JPN)
TASAKA TAICHI
(Japan Testing Center for Construction Materials, JPN)
HAGIHARA SHINJI
(Japan Testing Center for Construction Materials, JPN)
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Journal Title;Thermophys Prop
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Journal Code:X0031A
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ISSN:0911-1743
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VOL.27th;NO.;PAGE.121-123(2006)
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| Figure&Table&Reference;FIG.3, TBL.4, REF.2 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;In measurement of thermal conductivity of thermal insulation materials, the uncertainty of thermal conductivity measurement is decided by 4 factors mainly. They are (1) heat flow through specimens, (2) thickness measurement of specimens, (3) measuring area, (4) temperature measurement. In these factors temperature measurement has a great effect to uncertainty of thermal conductivity measurement. We investigated a measurement method of temperature so that the uncertainty became smaller. As a result the uncertainty of thermal conductivity measurement changed into 1.5% from 2.5%. In Japan, JIS mark certification system was revised at October 2005. Before JIS mark certification system was revised a nation had licensed to indicate JIS mark to factories. So JIS mark certification system was revised accredited certification bodies license to indicate JIS mark instead of a nation. In this report new JIS mark certification system and standard materials of thermal conductivity for thermal insulation were introduced. (author abst.) |
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