AS 60068.2.38-2003

1 - AS 60068.2.38-2003 ENVIRONMENTAL TESTING - TESTS-TEST Z/AD: COMPOSITE TEMPERATURE/HUMIDITY CYCLIC TEST
4 - PREFACE
5 - CONTENTS
7 - 1 Introduction
8 - 2 Scope
8 - 3 General description of the test
8 - 4 Description of test apparatus
9 - 5 Severities
9 - 6 Testing procedure
9 - 6.1 Preconditioning (see figure 1)
9 - 6.2 Initial measurements
9 - 6.3 Conditioning
10 - 6.3.1 Description of 24 h cycle
11 - 6.4 Final measurements
11 - 6.4.1 At high humidity
11 - 6.4.2 Immediately upon removal from the chamber
12 - 6.4.3 After final drying
12 - 7 Information to be given in the relevant specification

AS 60068.2.38-2003 identically adopts IEC 60068-2-38:1974, which sets out a cyclic temperature/humidity test which is designed to reveal defects in test specimens caused by "breathing" as distinct from the absorption of moisture.

To provide a composite test procedure, primarily intended for component type specimen, to determine in an accelerated manner the resistance of specimens to the deteriorative effects of high temperature/humidity and cold conditions.

First published as AS 1099.2Z/AD-1980.
Revised and redesignated as AS 60068.2.38-2003.