Assessment of the UVB Transmittance Measurement Uncertainty in Conformity with ISO/IEC 17025

Abstract:

The main purpose of this research is to construct a laboratory for testing standard. It refers to the spirit of ISO/IEC 17025 Standard, and follows Guide to the Expression of Uncertainty in Measurement (ISO GUM) made by ISO organization. The content includes UV test system construction, UVB transmittance measurement uncertainty, and the plan of measurement quality assurance that assures the stable operation of the laboratory system. Construct the equations of measurement uncertainty by the system methods that apply to the UVB transmittance measurement of car insulation film, and evaluate the variance with transmittance measurement measured by UV spectroradiometer. As for the results of transmittance measurement, the transmittance is between 0.87214 and 1.02146(%) with single wavelength of 294.5nm. There is little difference between the manufacturer label value and the measured one. The verification proofs the effectiveness of the system, and allows the tests of commercial UV-cut products fit the international and world standards.

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 149-154
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.149
• Online since: December 2013
• Authors: Jen Yu Shieh, Song Yuh Huang, Song Chi Huang, Kun Hsien Lin, Wei Cheng Huang
• Keywords: ISO/IEC 17025, Measurement Uncertainty, Test, UV Spectroradiometer

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