BS EN 60721-2-1:2014

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions, abbreviations,
  quantities and units
4 General information regarding data
  collection and analysis
5 General validation process
6 Open air climates
Annex A (informative) - Map of climate classification
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Describes a limited number of open-air climate classifications, in terms of temperature and humidity, which represent the conditions most frequently met by products while being transported, stored, installed and used.

This part of IEC60721 presents classifications of open-air climates in terms of temperature and humidity. It is intended to be used as part of the background material when selecting appropriate temperature and humidity severities for product testing and application. The climates cover all areas of the world, excluding the central Antarctic and high altitudes (above 5000m). This presentation may be used as background material when issuing climatic environmental classes for product applications. This standard defines a limited number of open-air climate classifications, in terms of temperature and humidity, which represent the conditions most frequently met by products while being transported, stored, installed and used.