Inter-laboratory comparison scheme for fuel sector, LABKAR in Turkey

Date

2009-08-01

Author

TÜRKER BAYRAK, ÖZLEM
Okandan, Ender
Uckardes, Hale

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Fuel sector is one of the powerful sectors in Turkish industry. The implementation of a new law for regulating the fuel sector had enforced the quality control of fuels sold to public. This resulted in several accredited fuel-testing laboratories to emerge. Thus, a scheme to evaluate their proficiency in measurements became an important requirement. The inter-laboratory comparison scheme LABKAR for gasoline, diesel oil, LPG, lubricating oil and biodiesel samples have evolved to fulfill this need. In this paper, LABKAR is introduced; the results obtained from the program are analyzed and discussed. The kernel densities of the participants' results show that the use of robust mean as a consensus value is appropriate for fuel samples. Although the number of rounds is not enough to derive strict conclusions, it is seen that the performance of the scheme based on the standard deviations and coefficient of variations is improving in each round. It has been observed that the number of laboratories receiving "action" or "warning" is decreasing, which indicates that they are benefiting from the scheme.

Subject Keywords

Instrumentation, General Chemistry, General Chemical Engineering, Safety, Risk, Reliability and Quality

URI

https://hdl.handle.net/11511/66808

DOI

https://doi.org/10.1007/s00769-009-0542-7

Collections

Petroleum Research Center (PAL), Conference / Seminar

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Citation Formats

Ö. TÜRKER BAYRAK, E. Okandan, and H. Uckardes, “Inter-laboratory comparison scheme for fuel sector, LABKAR in Turkey,” 2009, vol. 14, p. 497, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66808.