Salt spray corrosion test box through the assessment of the material and its protective layer of salt spray corrosion, and similar protective layer of the process of quality comparison, at the same time can assess the ability of certain products salt spray corrosion; The product is suitable for parts, electronics Components, metal materials, protective coatings, and industrial products, salt spray corrosion test.

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Salt Spray Tester
C&T RF Antennas Inc
Salt spray corrosion test box through the assessment of the material and its protective layer of
salt spray corrosion, and similar protective layer of the process of quality comparison, at the
same time can assess the ability of certain products salt spray corrosion; The product is suitable
for parts, electronics Components, metal materials, protective coatings, and industrial products,
salt spray corrosion test.
Salt spray chamber is the use of salt spray corrosion test samples were tested for the reliability of
corrosion resistance, salt spray is the atmosphere composed of tiny droplets of salt formed by the
dispersion system is artificial environment three anti-series A lot of business products need to
simulate the destructive effects of the climate around the sea, so salt spray chamber should go its
route. Salt spray test is divided into two kinds of neutral salt spray and acid salt spray, the
difference is in line with the standards and test methods are different, respectively, "NSS" and
"CASS" test, artificial three weather climate is the most common test method.
Salt spray corrosion
Corrosion is the destruction or deterioration of the material or its properties caused by the
environment. Most of the corrosion occurs in the atmosphere, the atmosphere contains oxygen,
humidity, temperature changes, and pollutants and other corrosion components and corrosion
factors. Salt spray corrosion is a common and most damaging atmospheric corrosion. Salt spray
here refers to the atmosphere of the chloride, its main component of corrosion is the chloride
salt in the ocean - sodium chloride, it is mainly derived from the marine and saline areas. Salt
spray corrosion of the metal surface is due to the chloride ions contained in the metal surface
through the oxide layer and the protective layer and the internal metal electrochemical reaction.
At the same time, chloride ion contains a certain amount of hydration energy, easily absorbed in
the metal surface pores, cracks displace and replace oxygen in the oxide layer, the insoluble oxide
into a soluble chloride, the passive state of the surface into a lively surface. Caused bad product

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adverse reactions.
Salt spray
Salt spray refers to the dispersion of the system consisting of tiny droplets of salt in the
atmosphere. It is one of the three series of artificial environments. Many enterprises need to
simulate the destructive effects caused by the climate around the ocean. The salt spray test
simulates this The phenomenon of production, so testing equipment - salt spray chamber came
into being.
Salt spray test is divided into two kinds of neutral salt spray and acid salt spray, the difference is in
line with the different standards and test methods, also known as "NSS" and "CASS" test, the
artificial three weather climate is the most common test method.
Box material: the test chamber as a whole to enhance the import of PVC rigid plastic sheet, the
surface smooth and smooth, and anti-aging, corrosion-resistant; easy to clean, no leakage,
abandon the surface of the material due to FRP fade, fiber material structure
Cover material: all transparent imported impact plate manufacturing, easy to test the test sample
test conditions
Salt Bucket-Material: imported PVC board, oversized salt tank design, to stop the lack of salt
water and interrupt the test
High-pressure air pipe material: brass or rubber tube
Saturated air barrel: imported high-grade stainless steel (SUS304) board; using Henry's law, to be
heated and humidified, and provide experimental humidity
(Saturated air tank role: for compression into the air heating, humidification and oil filtration)
Chamber all pipes are thickened fluorosilicone rubber tube, fifteen years can be maintained
without aging and cracking
Test methods can be done:
LRHS-108-RY, LRHS-270-RY, LRHS-412-RY, copper accelerated vinegar test, high temperature damp
heat test
Test temperature: a. Neutral salt spray test: Laboratory: 35 ℃ ± 1 ℃, b. Saturated air barrel:
47 ℃ ± 1 ℃, acid corrosion test: Laboratory: 50 ℃ ± 1 ℃, b. : 63 ℃ ± 1 ℃, can also
be set according to JIS, CNS, and other standards
Guideline
Salt spray test reference standards: GB / T 2423.17, IEC60068-2-11, ISO4628-3, ASTM B117,
JIS-Z2371, JIS-G3141, GJB 150.1, MIL-STD-810F, MIL-STD-883E and so on.
Experimental classification
The natural environment and accelerated simulation
Alias: artificial salt spray test also includes a neutral salt spray test, acetate salt spray test, copper
salt accelerated acetic acid salt spray test, alternating salt spray test.
Methods: Artificial salt spray environment test is to use a certain volume of space for the test
equipment - salt spray chamber, in its volume of space within the manual method to cause salt
spray environment to the product of salt spray corrosion quality of the quality Conduct
assessment. Compared with the natural environment, the salt concentration of the chloride in
the salt spray environment can be several times or several times that of the common natural
environment salt spray, so that the corrosion rate is greatly increased. The salt spray test is

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performed on the product to obtain the result The time is also greatly reduced. Such as natural
exposure to a product sample to be tested, to be corrosion may be 1 year, and artificial simulated
salt spray environment in the test, as long as 24 hours, you can get similar results. However,
artificially accelerated simulation experiments are still different from the natural environment,
and therefore cannot be replaced.
Category:
(1) Neutral salt spray test (NSS test) is the earliest application of accelerated corrosion test is the
most widely used method. It uses 5% sodium chloride salt solution, the solution PH value in the
neutral range (6 ~ 7) as a spray solution. Test temperature is taken 35 ℃, salt spray
sedimentation rate of 1 ~ 2ml / 80cm • h between.
(2) Acetate salt spray test (ASS test) is developed on the basis of the neutral salt spray test. It is in
the 5% sodium chloride solution by adding some glacial acetic acid, so that the solution PH value
of about 3, the solution becomes acidic, and finally, the formation of the salt spray from neutral
salt to become acidic. Its corrosion rate is about 3 times faster than the NSS test.
(3) Copper Salt Accelerated Acetate Fog Test (LRHS-663P-RY) is a newly developed rapid salt spray
corrosion test in foreign countries. The test temperature is 50 ° C. A small amount of copper
salt-copper chloride is added to the salt solution, Strongly induced corrosion. It corrodes
approximately 8 times faster than the NSS test.
(4) Alternating salt spray test is a comprehensive salt spray test, it is actually a neutral salt spray
test plus a constantly hot and humid test. It is mainly used for cavity-type machine products,
through the infiltration of the tidal environment, so that salt spray corrosion is not only produced
on the product surface but also produced within the product. It is the product in the salt spray
and hot and humid conditions alternately under two environmental conditions, the final
assessment of the whole product of electrical and mechanical properties of any change.
Measure to judge
The purpose of the salt spray test is to evaluate the salt spray corrosion resistance of the product
or the metal material, and the determination of the salt spray test result is the judgment of the
product quality. Whether the judgment result is correct or not is the correct measure of the
product or metal salt spray resistance Corrosion the key to quality. Salt spray test results to
determine the method are rating decision method, weighing judgment method, the
determination of corrosive substances, corrosion data statistical analysis.
Rating judgment
Are the percentage of corrosion area and the total area ratio according to a certain method is
divided into several levels, with a certain level as a basis for determining the pass, which is
suitable for flat samples for evaluation.
Weighing decision
Is through the corrosion test before and after the weight of the sample weight method to
calculate the weight loss by corrosion to evaluate the quality of the sample corrosion resistance,
it is particularly suitable for the corrosion resistance of a metal quality assessment.
Corrosive
Is a qualitative decision method, which salt spray corrosion test, the product is corrosive
phenomena to determine the sample, most of the general product standards using this method.

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Corrosion data
Provides methods for designing corrosion tests, analyzing corrosion data, and determining the
confidence of corrosion data. It is primarily used to analyze and count corrosion conditions rather
than to determine the quality of a particular product.
Product
Salt spray test products need to be some of the main metal products, through testing to examine
the corrosion resistance of the product.