AS 60068.2.74-2003

1 - AS 60068.2.74-2003 ENVIRONMENTAL TESTING -TESTS-TEST Xc: FLUID CONTAMINATION
4 - PREFACE
5 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
7 - 3 Test fluid
7 - 3.1 Specification of test fluid
7 - 3.2 Precaution
8 - 4 Specimen
9 - 5 Cleaning
9 - 5.1 Initial cleaning
9 - 5.2 Intermediate cleaning
9 - 5.3 Final cleaning
9 - 6 Initial examination
9 - 7 Testing
9 - 8 Occasional contamination (class A)
10 - 9 Intermittent contamination (class B)
10 - 10 Extended contamination (class C)
11 - 11 Final examination
11 - 12 Information to be given in the relevant specification
12 - Annex A - Guidance on the choice of test fluids and specimens
12 - A.1 General
12 - A.2 Contaminating fluids and their effects
13 - A.3 Selection of test fluids
14 - A.4 Specimen
14 - A.5 Order of test and cleaning
15 - A.6 Examination
15 - A.7 Test severities
15 - A.8 Method of application
15 - A.9 Performance evaluation
16 - A.10 Reference documents

The objective of this Standard is to provide the electrotechnology industry with a complete set of environmental test procedures published as a series under AS 60068 Environmental testing. This Standard is Part 2.74 of that series.

This part of IEC 60068 gives a method of test which provides a standard procedure to determine the ability of components, equipments or their constituent materials, hereinafter referred to as specimen, to withstand accidental contact with fluids, without being unacceptably affected. The fluids listed in this part of IEC 60068 are representative of those commonly encountered in operational applications. It is not intended that a specimen should be exposed to all, or even any of them. Nor is the list intended to be complete; fluids not listed and for which a test is appropriate should be included in the relevant specification. Guidance is given in annex A on the choice of test fluids, specimens and severities. These tests are not intended to demonstrate the suitability of components or equipments to perform in continuous contact with a fluid, e.g. an immersed fuel pump. Nor are they a test to demonstrate immunity from electrolytic corrosion.

First published as AS 60068.2.74-2003.