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							Issue
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<div>2015				</div>
				
					                17<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> International Congress of Metrology
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					Article Number
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<td>06007</td>
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					Number of page(s)
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<td>12</td>
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<th>Section</th>
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<td>Métrologie des laboratoires médicaux / Metrology of medical laboratories</td>
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<th>DOI</th>
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<td>
<a href="https://doi.org/10.1051/metrology/20150006007">
					https://doi.org/10.1051/metrology/20150006007
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<th>Published online</th>
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<td>
				21 September 2015
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## Surveillance de la température dans les enceintes thermostatiques : utilisation(s) du témoin d’environnement

Bertrand Blanquart1a, Bernard Crétinon2 et Robert Borel3

1 Indépendant, 40 Av. du G al Leclerc, 54600 Villers les Nancy, France 2 Indépendant, 63 bd Eugène Reguillon, 69100 Villeurbanne, France 3 VIRBAC, 13 ième rue LID BP27 06511 Carros Cedex, France

a Email de correspondance de l’auteur : This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

The control of the temperature in the thermostatic chambers is a major issue for accredited laboratories in chemistry and biology, and for pharmaceutical and healthcare facilities. Temperature monitoring devices allow to centralize the recording of temperatures and to define alarms for each chamber. However, there are still recurring issues in laboratories, regarding the metrological confirmation of the monitoring thermometer and the methods for defining relevant alarm settings. Methods proposed in the literature for the monitoring and internal methods are compared to evaluate their performance in detecting non-conformity of the chamber. By defining alarms equal to limits of temperature specifications, there is a very significant risk of non-detecting a non-conformity of the thermostatic chamber. To be efficient, alarms must be defined by taking into account the minimum and maximum conventional temperatures measured during characterization, described in FD V 08–601. This method is easy to apply and allows an efficient monitoring of the system {thermostatic chamber + control thermometer}, but requires the knowledge of the temperature indicator during the characterization of the chamber.

© Owned by the authors, published by EDP Sciences, 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.