AS 60068.2.42-2004 (R2018)

Table of Contents

1 Scope and object
2 Normative references
3 Test apparatus
3.1 Test chamber
4 Test atmosphere
5 Preconditioning
6 Method
6.1 Initial measurements
6.2 Procedure
6.3 Final measurements
7 Details to be specified
Annex A (informative) - Generation of the test atmosphere
by direct mixing of sulphur dioxide with air

Abstract

The AS60068 series of Standards includes a series of environmental testing procedures, information on the severity of tests and information on atmospheric conditions for measurement and testing. Although primarily intended for electrotechnical products, many of the procedures are equally applicable to other industrial products.

RECONFIRMATION NOTICE
Major stakeholders of this publication have reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 29 August 2018.

Scope

This test:
is intended to provide accelerated means to assess the corrosive effects of atmospheres polluted with sulphur dioxide on contacts and connections;
is particularly suitable for giving information on a comparative basis;
is not suitable as a general corrosion test, i.e. it may not predict the behaviour of contacts and connections in industrial atmospheres.
NOTE In view of the limited information to be obtained from accelerated corrosion tests, particular attention should be paid to the guidance on this test given in IEC 60068-2-49. Reference should also be made to IEC 60355.
The object of this test is:
a) to determine the influence of atmospheres containing sulphur dioxide on the contact properties of precious metal or precious metal-covered contacts and connections, excluding contacts consisting of silver and some of its alloys;
b) to check solderless connections with regard to their tightness or effectiveness. In all tests, the major criterion of performance will be the change in contact resistance caused by exposure to the sulphur dioxide test atmosphere.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 14/09/2018. This standard has been reconfirmed in Australia in 2018 and remains current in New Zealand. Reconfirmation Notice 14/09/2018
Pages
ISBN
Committee	EL-026
Supersedes	DR 04247 CP