IEC 60721-2-1:2013

FOREWORD
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

IEC 60721-2-1:2013 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. This second edition cancels and replaces the first edition, published in 1982, and constitutes a technical revision. The main changes with respect to the previous edition are in the definitions of climate types.