Lube-Tech PUBLISHED BY LUBE: THE EUROPEAN LUBRICANTS INDUSTRY MAGAZINE However, as FTIRAN/BN methods are not sanctioned as official
methods by any officiating body, ASTM or otherwise, these analyses are presented to clients as a cost effective, alternative means of obtaining quantitative ASTM-equivalent AN and BN data. Given the statistically proven equivalence of the FTIRAN/BN
results, clients can be provided with meaningful
real-time AN and/or BN results at a reasonable cost. Quantitative real-time ASTM trending has generally been considered too expensive for routine monitoring applications, however, with efficient, lower cost FTIR analysis the door to AN and BN trending is now open. From our experience, it is clear that the COAT FTIR system has proven its efficacy and has provided Fluid Life with the ability to offer additional value-added quantitative condition monitoring information to its clientele which is effectively ASTM-identical. The utility and productivity of this new methodology is viewed as a significant advance in lubricant analysis technology and in our opinion could be of benefit to the oil condition monitoring sector as a whole.
No.98 page 4
Table 1. Comparison of sample preparation time, throughput, maintenance time and waste disposal volumes for the ASTMAN/BN titrimetric methods vs. the FTIRAN/BN procedures.
References [1] Wooton, D., Thomas, D. and Barry, S. Using Infrared Spectroscopy in Used Engine Oils - Estimating Base Number. Practicing Oil Analysis Vol. 11 2005. http://www.
machinerylubrication.com/Magazine/Issue/Practicing%20 Oil%20Analysis/11/2005
[2] van de Voort, F. R., Sedman, J., Yaylayan, V. and Saint- Laurent, C., “The Determination of Acid and Base Number in Lubricants by FTIR Spectroscopy”. Appl. Spectrosc. Vol. 57, 2003. pp 1425-1431.
[3] van de Voort F. R., Sedman J., and Pinchuk, D. “An Overview of Progress and New Developments in FTIR Lubricant Condition Monitoring Methodology”. J. ASTM International Vol. 8 2011 No. 5, pp 2-14.
[4] Winterfield, C. and van de Voort, F.R. “Automated Acid and Base Number Determination of Mineral-Based Lubricants by FTIR Spectroscopy: Commercial Laboratory Evaluation” Journal of Laboratory Automation 2014, Vol 19(6) 577-586 DOI 10.1177/2211068215511825.
[5] van de Voort, F. R., Sedman, J. and Pinchuk, D., “Improving JOAP FTIR condition monitoring analytical throughput by sample dilution”. Joint Oil Analysis Program International Condition Monitoring Conference. JOAP-TSC Technology Showcase and Conference Proceedings April 18-22 2004. Pensacola FL. CD-ROM
[6] van de Voort, F. R., Sedman, J., Cocciardi, R.A. and Pinchuk, D., “FTIR Condition Monitoring of In-Service Lubricants: Ongoing Developments and Future Perspectives”. Tribol. Tans., Vol. 49, 2006, pp 410-418.
[7] Wold, S. Sjostrom, M. and Eriksson, L. PLS-regression: a basic tool of chemometrics. Chemometrics and Intelligent Laboratory Systems. Vol 58, 2001pp 109-130.
LINK
http://thermal-lube.com/
http://www.fluidlife.com/
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