Research Article

Uncertainty Calculation for the Determination of Chromium Oxide in Leather

Volume: 7 Number: 2 December 30, 2022
Sarwat Mahboob *, Rajkumar Dewanı , Muhammad Kashif Pervez , Tahira Ayaz
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Uncertainty Calculation for the Determination of Chromium Oxide in Leather

Abstract

This work describes the uncertainty calculation for the determination of chromium oxide in leather. Following the various steps for the calculation of uncertainty which includes assembling a list of sources of uncertainty, with the help of basic formula used to calculate the measure and as all parameters cause an influence on the result because of the uncertainty value associated with it then the basic cause and effect diagram is made which shows the correlation between these and indicates their effect on the uncertainty of the result.
All individual sources of uncertainty are evaluated by quantification. Mass, purity, and molecular mass of potassium dichromate are calculated against the volume of sodium thiosulphate following the first step in the test method is the standardization of sodium thiosulphate with the primary standard, potassium dichromate. So the overall uncertainty value depends on the uncertainties associated with the mass, purity, and molecular mass of potassium dichromate.

Keywords

Leather , chromium oxide , uncertainty , quality assurance , ISO/IEC 17025

References

  1. Determination of Chromium Oxide in Leather (2018). IULTCS/IUC 8:1. Northampton, UK: Society of Leather Technologists and Chemists (SLTC).
  2. Dewani, R., Ahmed, F., Saleemuddin, M., Rasheed, M., Pervez, M., & Mahboob, S. (2012). Quantifying Uncertainty for the determination of formaldehyde in leather by colorimetric method. Journal of the American Leather Chemists Association, 107 (11), 384-393.
  3. EURACHEM/CITAC Guide. (2012). Quantifying uncertainty in analytical measurement S. L. Ellison & A. Williams (Eds.), Retrieved from www.eurachem.org
  4. General requirements for the competence of testing and calibration laboratories. (2017) ISO/IEC 17025:2017 (pp. 30). Geneva, Switzerland: International Standard Organization and The International Electrotechnical Commission.
  5. Kadis, R. L. (1998). Evaluating uncertainty in analytical measurements: the pursuit of correctness. Accred Qual Assur, 147-151.
  6. Meyer, V. R. (2007). Measurement uncertainty. Journal of Chromatography A, 1158(1-2), 15-24.
  7. Rowley, A. (2001). Evaluating uncertainty for laboratories: A practical guide and handbook: Alan Rowley Associates.
  8. Vogel, A. I., Jeffery, G. H., Bassett, J. & Mendham, J. (1989). Vogel's textbook of quantitative chemical analysis (5th ed. Vol. 349): Longman Scientific & Technical London (pp. 392).
  9. Wieser, M. E., Holden, N., Coplen, T. B., Böhlke, J. K., Berglund, M., Brand, W. A. & . . . Meija, J. (2013). Atomic weights of the elements 2011 (IUPAC Technical Report). Pure and Applied Chemistry, 85(5), 1047-1078. Doi: http://dx.doi.org/10.1351/PAC-REP-13-03-02

Details

Primary Language

English

Subjects

Civil Engineering

Journal Section

Research Article

Authors

Rajkumar Dewanı This is me
0000-0001-8870-1175
Pakistan

Muhammad Kashif Pervez This is me
0000-0002-5778-6935
Pakistan

Tahira Ayaz This is me
0000-0002-0618-1741
Pakistan

Publication Date

December 30, 2022

Submission Date

September 29, 2022

Acceptance Date

December 15, 2022

Published in Issue

Year 2022 Volume: 7 Number: 2

DOI

https://doi.org/10.30785/mbud.1181736

IZ

https://izlik.org/JA84SE23YF

Cite

RIS / Bibtex
APA
Mahboob, S., Dewanı, R., Pervez, M. K., & Ayaz, T. (2022). Uncertainty Calculation for the Determination of Chromium Oxide in Leather. Journal of Architectural Sciences and Applications, 7(2), 871-877. https://doi.org/10.30785/mbud.1181736

 26583JASA JOURNAL TAG / MBUD DERGİ KÜNYESİ



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