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How long is it equivalent to the natural environment for 1 hour experiment in a salt spray test chamber?

Views: 1163     Author: Site Editor     Publish Time: 2019-12-06      Origin: Site

Many friends have a lot of doubts about the salt spray test chamber. For example, how long is one hour equivalent to the natural environment during an experiment? In fact, we know that a sample of a product is tested under natural exposure. It may take up to one year for corrosion, and the test under artificial salt spray conditions can obtain similar results as long as 24 hours.


salt spray test chamber

The salt spray test chamber also includes a neutral salt spray test, an acetate salt spray test, a copper salt accelerated acetate salt spray test, and an alternating salt spray test.

Seawater corrosion


1. Neutral salt spray test (NSS test) is an accelerated corrosion test method that appears in a wide range of current applications. It uses a 5% sodium chloride aqueous solution, and the pH of the solution is adjusted to a neutral range (6 to 7) as a spray solution. The test temperature is 35 ° C, and the sedimentation rate of salt spray is required to be between 1 and 2ml / 80cm².h.


2. Acetic acid salt spray test (ASS test) was developed on the basis of neutral salt spray test. It is to add some glacial acetic acid to a 5% sodium chloride solution to reduce the pH value of the solution to about 3, the solution becomes acidic, and the salt mist formed from the neutral salt mist becomes acidic. Its corrosion rate is about 3 times faster than the NSS test.


The copper salt accelerated acetate spray test (CASS test) is a rapid salt spray corrosion test recently developed in foreign countries. The test temperature is 50 . Strongly induces corrosion. Its corrosion rate is about eight times that of the NSS test.

salt spray test chamber


The specific time is converted into:

Neutral salt spray test 24h ⇌ Natural environment 1 year

Acetic acid salt spray test 24h Natural environment 3 years

Copper salt accelerated acetate spray test 24 hours ⇌ Natural environment 8 years

If you are a seller selling similar products, you should also give feedback to your suppliers in time.Let them do the relevant testing in advance, otherwise the products built before may not be sold anymore. Welcome to consult,SANWOOD Technology,a Factory  specialized in manufacturing product reliability test equipment for 25 years and exported to more than 50 countries. We will provide you with the safest lithium battery reliability test equipment and save you 60% of energy!

sanwood climatic chambers

Except Salt spray test chamber, we also produce:

-Battery explosion-proof chamber (-70℃ to +180℃,explosion-proof chains, CO2 fire extinguisher, smoke detector, rare gas detector, forced air supply and exhaust device, Du-pot insulating painting);

-(Vacuum) drying ovens (25℃ to 300℃,from 100L to 8,000L);

-Rain chamber (IPX1/2/3/4/5/6/7/8/9K);

-Salt spray chamber (can integrate with temperature and humidity);

-Sand & dust chamber (talc powder to mimic sand effect);

-Thermal shock chamber (2-zone and 3-zone)

-UV chamber (UV lamps imported from USA Q-LAB);

-Xenon lamp chamber (Atlas lamp imported from USA Atlas);

-AGREE chamber (temperature + humidity + vibration);

-HAST chamber (accelerated aging chamber);

-Altitude chamber (pressure range from normal pressure to 500Pa);

-Ozone chamber (standard 500L with ozone concentration up to 1,500pphm adjustable)

-Last but not least, which are the most hot selling type: temperature and humidity test chamber(we developed the bench-top type , standard type and walk-in type);

For further details, please send your inquiries toinfo@sanwood.cc


This article comes from: https://www.sanwood.cc, Sanwood Technology (Sanwood) has been making safe and reliable products for 25 years! Welcome to reprint.

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