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CORROSION TESTING STANDARDS

Contact Ascott for
Further Information
 
 


IEC 60068-2-52 STANDARDS - ASCOTT ANALYTICAL





THE INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC) IS THE LEADING GLOBAL
ORGANIZATION THAT PREPARES AND PUBLISHES INTERNATIONAL STANDARDS FOR ALL
ELECTRICAL, ELECTRONIC AND RELATED TECHNOLOGIES.

 


INTRODUCTION

Environmental Testing - Part 2-52: Tests Kb:

Salt Mist, Cyclic Sodium Chloride Solution - this cyclic salt mist test may be
used to indicate deterioration of some non-metallic materials by assimilation of
salts. In the various test methods described in this document, the period of
spraying with the relevant salt solution is sufficient to wet the test
specimen(s) thoroughly. Because this wetting is repeated after intervals of
storage under humid conditions supplemented by storage under a standard
atmosphere, it goes some way to reproducing the effects of natural environments.

Furthermore, considering natural environments for corrosion on metallic
materials, neutral or acidified salt solution spray, humid, and dry conditions
are also important factors as a cyclic corrosion test. Each condition is
repeated after intervals of other conditions in different combinations to
achieve corrosion on metallic materials and to get acceleration of corrosion.

IEC 60068-2-52 specifies the application of the cyclic salt mist test to
components or equipment designed to withstand a salt-laden atmosphere as salt
can degrade the performance of parts manufactured using metallic and/or
non-metallic materials.

 


TEST CONDITIONS

The test contains 8 different test methods as follows:




TEST CHAMBER

For test methods 1 and 2, a salt mist chamber and humidity chamber can be used.

For test methods 3 to 6, a salt mist chamber, humidity chamber and standard
atmosphere chamber can be used.
For test methods 7 and 8, a salt mist chamber, dry chamber and humidity chamber
can be used.

All methods for this test can be carried out in an Ascott Cyclic Corrosion
Chamber fitted with a Dehumidification and cooling system , wall wash and blower
heater system as shown on the right

If you would like further information please call our experienced team on 01827
318040 or email sales@ascott-analytical.com



 

 

 



 

For a reference guide on how to test to IEC 60068-2-52 using an Ascott chamber
click the button below;

 

Test Methodology PDF


TYPCIAL APPLICATIONS

 

Test method 1 should be used to test products which are exposed to the
environment for much of their operational life (e.g. ship radar, deck
equipment).


Test method 2 should be used to test products which may be exposed to the marine
environment from time to time but will normally be protected by an enclosure
(e.g. navigational equipment which will normally be used on the bridge or in a
control room).


Test methods 3 to 6 can be used for products where, under normal use, there is a
frequent change between salt-laden and dry atmosphere, for example automobiles
and their parts.


Test method 7 defines a specific number of test cycles that include spraying
salt mist, followed by dry conditions and humid conditions. The process can be
used as a
general corrosion test for many materials including automobiles and their parts.


Test method 8 contains the same cyclic exposure as test method 7, but utilizes
an acidified salt solution instead of a neutral salt solution to induce a
corrosion that occurs in
acidified salt environment.

 

 



 

Please note
The test standard summaries are for general guidance only. Though believed to be
accurate at the time of writing, this may change over time. So this information
should not be used as a substitute for referring to a complete test standard, at
an appropriate revision level.

Also: the terms salt spray, salt mist & salt fog are all in wide spread use
within corrosion test standards. In this context they can be considered to be
equivalent and interchangeable terms.



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