scope:

This part of IEC 60068 provides a standardized method of establishing whether temperature 157 as well as temperature and humidity chambers, without specimens, are able to achieve the 158 requirements of the relevant climatic test procedures of IEC 60068-2. 159 This document is intended for users when conducting regular chamber performance 160 monitoring. 161 Guidance on establishing variations and uncertainties of the climatic conditions within 162 environmental test chambers are provided in IEC 60068-3-11. The guidance of that document 163 is intended to be used with an empty climatic test chamber, a chamber containing a test load, 164 or a chamber contain a test specimen undergoing testing. The guidance is particularly 165 applicable when the specimen or test load is large in comparison to the chamber working 166 space, is heat-dissipating or influences the airflow within the chamber. 167 When considering temperature only chambers, the passages in this document related to 168 humidity do not need to be applied.