DIN 50021 SS PDF

DIN EN ISO NSS / AASS / CASS (which replaced DIN SS / ESS Salt spray testing by analogy to DIN EN ISO with modified parameters. UDC DEUTSCHE NORM. June Salt spray testing. DIN. 50 . ing a test temperature of (35 + 2)°C for the SS and ASS tests, and of (50+ . thermal loadability 80°C–°C. Corrosion resistance to h against backing metal corrosion. (red rust) in the salt spray test in accordance with DIN SS .

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For this reason the salt spray test is most often deployed in a as audit role, where, for example, it can be used to check the effectiveness of a production process, such as the surface coating of a metallic part. ASTM G85 is the most popular global test standard covering modified salt spray tests. So the tests are quite similar with the exception of the EES variant.

The second climate cycle comprises 0. Such tests are commonly referred to as modified salt spray tests. The appearance of corrosion products rust or other oxides is evaluated after a pre-determined period of time. This is followed by 1. The test duration is variable.

Salt Spray Fog Testing Equipment for ASTM B and DIN 50

Anything I did miss was not easily findable on the internet. Can you advise me of a suitable company that offers these? This info comes from pooled info from searching the internet. This test can be used to test the relative resistance to corrosion of coated or sd aluminium alloys and other metals, when exposed to a changing climate of acidified synthetic seawater spray, followed by a high humidity, both at xin elevated temperature.

Salt Spray Fog Testing Equipment for ASTM B 117 and DIN 50 021

B holds PH to range 6. Test specimens are placed in an enclosed chamber, and exposed to a changing climate that comprises the following 2 part repeating cycle.

This page was last edited on 29 Octoberat Test specimens are placed in an enclosed chamber, and exposed to 1 of 2 possible changing climate cycles. Usually, the materials to be tested are metallic although stone, ceramics, and polymers may also be tested and finished with a surface coating which is intended to provide a degree of corrosion protection to the underlying metal. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages.


Although there may be a weak correlation between the duration in salt spray test and the expected life of a coating in certain coatings such as hot dip galvanized steelthis test has gained worldwide popularity due to low cost and quick results.

This produces a corrosive environment of dense salt water fog also referred to as a mist or spray in the chamber, so that test samples exposed to this environment are subjected to severely corrosive conditions. I have not seen DIN recently, but in the past there was no difference between the two tests.

Salt spray tests in accordance with DIN EN ISO NSS / AASS / CASS | IGOS, Solingen

The number of cycle repeats and therefore the test duration is variable. ASTM does not address this issue, but ISO does not recommend it and if it is to be done, advocates a thorough cleaning. Salt spray testing is s because it is relatively inexpensive, quick, well standardized, and reasonably repeatable.

Test specimens are placed in an enclosed chamber, and exposed to a changing climate that comprises the following 3 part repeating cycle. Retrieved from ” https: The concentration of salt in solution is approximately equivalent.

All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer.

However, these testing standards neither provide information of testing periods for the coatings to be evaluated, nor the appearance of corrosion products in form of salts. The most common test for steel based materials is the Neutral Salt Spray test often abbreviated to NSS which reflects the fact that this type of test solution is prepared to a neutral pH of 6. Cyclic corrosion testing is better suited to this.

From Wikipedia, the free encyclopedia. There is a general historical consensus that larger chambers can provide a more homogeneous testing environment. Synthetic dkn solutions are also commonly specified by some companies and standards.


The most appropriate test cycle and spray solutions are to be agreed between parties. ASTM B was the first internationally recognized salt spray standard, originally published in The salt spray test has little application in predicting how materials or surface coatings will resist corrosion in the real-world, because it does not create, replicate or accelerate real-world corrosive conditions.


Corrosion tests in artificial atmospheres – Salt spray tests

The equipment manufacturers should provide you with a statement indicating to which specifications their equipment complies. Requirements are agreed between customer and manufacturer. Although the majority of salt spray tests 50021 continuous, i. The salt spray test is one of the most widespread and long established corrosion tests.

These acidified test 05021 generally have a pH of 3. Different coatings have different behavior in salt spray test and consequently, test duration will differ from one type of coating to another.

Corrosion tests and standards: Electroplated zinc-nickel steel parts can last more than hours in NSS test without red rust or 48 hours in CASS test without red rust Requirements are established in test duration hours and coatings shall comply with minimum testing periods.

Painted surfaces with an underlying hot-dip galvanized coating can be tested according to this method.

ISO idn by standard number. From beautiful Pine Beach New Jersey: You should be able to purchase the two similar specs and run the test to either standard because you will control the chamber temperature etc.

You can even run it to the EES variant. The longer the accelerated corrosion test, the longer the process remains out of control, and larger is the loss in the form of non-conforming batches.