Significance of Quality of salt used in Salt Spray Chamber

Significance of Quality of salt used in Salt Spray Chamber

Salt Spray Chamber is highly reliable lab testing equipment that is used to simulate the corrosive environment of marine and other atmospheric conditions. It is important testing equipment for evaluating the corrosion resistance properties of materials and the quality of finishes. 

Salt spray testing is most often used for automotive, aerospace, and other metal components that need to be tested for their corrosion resistance. The quality of salt used in these tests is very important as it affects the accuracy of results obtained from these tests.
In this article, we will discuss the significance of the quality of salt used in Salt Spray Chambers and why it is important to use only high-grade salts in this type of testing.

What is a Salt Spray Chamber?

Let’s first understand what a salt spray chamber is. It is also known as a salt fog or corrosion test chamber. It is a closed environment where products can be exposed to a controlled atmosphere. This atmosphere is usually created by spraying a saline solution onto the products. The temperature and humidity in the chamber are also carefully controlled.
The purpose of using a salt spray chamber is to test how well a product can withstand corrosion. The results of these tests can help manufacturers make decisions about material selection, finishes, and other design choices that can impact the long-term durability of their products.
Salt spray chambers are used to test products made from metals, plastics, coatings, and other materials. These quality tests can be used to assess the effectiveness of corrosion protection treatments such as galvanizing, plating, painting, and powder coating.

The Importance of the Quality of Salt Used in a Salt Spray Chamber

The quality of salt used in a salt spray chamber is extremely important. Salt spray chambers are designed to test the corrosion resistance of materials, so it is critical that the salt used in these chambers is of the highest quality. Otherwise, the results of the tests will be inaccurate and could lead to faulty conclusions about the material being tested.

There are a few different ways to measure the quality of salt used in salt spray chambers. 

  • One way is to use a chloride ion meter. This device measures the number of chloride ions in a sample of salt solution. The higher the concentration of chloride ions, the more corrosive the salt solution will be. 
  • Another way to measure the quality of salt is by using a conductivity meter. This device measures how well electricity flows through a solution. The more conductive a solution is, the more corrosive it will be.
It is important to use high-quality salt in a salt spray chamber because corrosion testing is an important part of many industries. For example, this type of testing is often done on metals that will be used in construction or other applications where corrosion resistance is critical. If the wrong kind of salt is used in these tests, it could lead to disastrous consequences.
In conclusion, it is clear that the quality of salt used in a salt spray chamber is very important. Be sure to use only high-quality salts in these chambers in order to get accurate results from your test

Different Types of Salts Used in Salt Spray Chambers

Different types of salts are used in salt spray chambers to provide the necessary environment for testing. The type of salt used will depend on the specific requirements of the test being conducted.

  • The most common type of salt used is sodium chloride, which is readily available and provides a good balance of corrosion resistance and cost. 
  • Other types of salt that can be used include calcium chloride, magnesium chloride, and zinc chloride.
  • Each type of salt has its own advantages and disadvantages that should be considered when choosing the best one for your needs. Sodium chloride is the most economical choice and provides a good all-around performance, but it is not as effective at resisting corrosion as some of the other options.
  • Calcium Chloride is more expensive than sodium chloride but provides better corrosion resistance. It is also more hygroscopic, meaning it absorbs moisture from the air, which can impact the results of your tests.
  • Magnesium Chloride is similar to calcium chloride in terms of price and performance, but it is less hygroscopic. This makes it a good choice for tests that require a dry environment.
  • Zinc Chloride is the most expensive type of salt but provides the best corrosion resistance. It is also non-hygroscopic, making it ideal for tests that need to be conducted in a humid environment.

Techniques to Assure the Quality of Salt Used in a Salt Spray Chamber

There are a few key techniques that can be used to assure the quality of salt used in a salt spray chamber. These include:

-Using high-quality, food-grade salt: This type of salt is typically more expensive than regular table salt, but it is worth the investment to ensure the quality of your salt spray tests.

-Storing the salt properly: Salt should be stored in a dry, cool place out of direct sunlight.

-Checking the salt for impurities: Before using the salt in your chamber, it is important to check for any impurities such as dirt or grit.
If you follow these simple guidelines, you can be confident that the salt you are using in your chamber is of high quality and will produce accurate results.


Utilizing the appropriate kind of salt in a Salt Spray Chamber is an essential factor to ensure accurate, repeatable results. High-grade salts applied at the proper concentrations will provide reliable test results and reduce corrosion damage that may occur if using lower-quality salts. To guarantee optimal testing accuracy and reduce maintenance costs, it is important to use a high-quality salt designed specifically for salt spray chambers when conducting tests.
Refined salt for salt spray testing is used with a purity that meets the latest requirements and the Salt Spray Chamber should comply with ASTM B117 and JIS Z 2371 standards.
It needs to be fitted with a sophisticated atomizer so that the equipment ensures an even distribution of salt spray and precise collection rates throughout the chamber.
Presto Testing Instruments manufactures and provides the best Salt Spray Chamber in India. The Chamber utilizes refined salt for salt spray testing. The quality of salt utilized here complies with a purity standard and meets international quality requirements. If you want more information regarding the use of this quality testing instrument then give us a call at +91 9210 903903 or email us at Our team of technical experts will consult you regarding your needs and queries.


Author : -Gaurav Malhotra

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