Daikin had panels subjected to 3,000 hours of salt spray exposure per b117, and scribed panels subjected to 1,000 hours of salt spray per d1654. B117 11 standard practice for operating salt spray fog apparatus1 this standard is issued under the. Astm b117 salt spray corrosion resistance hardides corrosion protective properties have been independently tested to compare with hard chrome and other coatings via salt spray tests on mild steel plates coated with hardide, commercially sourced hard chrome plating and hvof coating. The test has been used for almost 100 years, and has been standardized as astm b117 since 1939. Corrosionpedia explains astm b117 in an astm b117 test, a metallic specimen is housed in a controlled chamber, and is sprayed at different angles and locations with a salt solution. Correlation of salt spray fog test results versus long term atmospheric exposures june 12, 2008 i use salt spray fog chamber according to astm b117 affil.
An approved astm b117 salt spray chamber at a third party laboratory was used for the test. Correlation of salt spray fog test results versus long. Since coatings can provide a high corrosion resistance through the intended life of the part in use, it is necessary to check corrosion resistance at an accelerated rate. The test standard takes precedence over this method statement and this method may need to be altered in order to follow comply with the standard. Astm b117 was the first internationally recognized salt spray standard, originally published in. Some will want a rating of 9 after hours and some will require a rating of 6 after 500. Astm b117 salt fog and salt spray corrosion testing g2mt. Other important relevant standards are iso 9227, jis z 2371 and astm g85.
The astm b 117 salt spray test uses a closed testing chamber in which a salt water 5% nacl solution is atomized by means of spray nozzles using pressurized air. The concentration of the naclsolution has ranged from 3. Its one of the most commonly recognized practices for salt spray testing, adopted by numerous companies and even government organizations like the u. The corrosion products formed during the modified b117 exposure are the same as those observed after field exposures. Astm b117 salt fog and salt spray testing is relatively fast way to analyze the corrosion caused by salt water and chlorides on coated metals and alloys.
The salt spray test is one of the most widespread and long established corrosion tests. More less the astm b117 test method involves creating a controlled accelerated corrosive environment in a salt spray cabinet or chamber to determine the effects of corrosion on a test specimen. Micom offers astm b117 accelerated corrosion testing as part of its surface finish and accelerated aging testing. Astm b117 salt fog or salt spray test is a very popular corrosion test designed to provide corrosion resistance information on metals and coated. This test can be used to test the relative resistance to corrosion paints on steelwhen exposed to a changing climate of dilute salt spray at ambient temperature, followed by air drying at n11707a elevated temperature. This should be used in conjunction with the astm b117 standard document.
Astm b117 salt spray fog test offered at micom laboratories. The salt spray test and its use in ranking stainless steels. Astm b117 was the first internationally recognized salt spray standard, originally published in 1939. Although the majority of salt spray tests are continuous, i. Astm b117 salt fog testing service next day testing. Pdf modification of astm b117 salt spray corrosion test. The salt nacl concentration is usually higher than in the atmosphere and ranges from 3. Element provides astm b117 salt spray, salt fog testing as a rapid method to evaluate the corrosion resistance of your material, surface or coating. Salt spray testing is performed by placing samples in a test chamber designed in accordance with astm b117 and operated in accordance with the specified conditions in astm b117. Salt spray salt fog astm b117 equilam north america. At lib, our astm b117 salt spray corrosion test chamber can test a number of test specimens of many sizes, shapes and dimensions for the astm b117 salt spray test. Micom offers astm b117 accelerated corrosion testing as part of its surface finish and accelerated aging testing services.
The socket head cap screws and hex bolts were placed on a tray within the machine. Ascott corrosion chambers may be fitted with a relative humidity sensor. The test solution to be sprayed is prepared by dissolving pure sodium chloride into pure water, in a ratio of 5% sodium chloride to 95% water, by weight. The astm b117 test standard has also been approved for use by department of defense agencies. Studies show astmb117 salt spray test does not correlate.
The astm b117 salt spray fog test is often used to evaluate the relative corrosion resistance of coated and uncoated materials exposed to a salt spray or fog at an elevated temperature. Astm b117 salt fog or salt spray test is a very popular corrosion test designed to provide corrosion resistance information on metals and coated metals. The system was then used to modify the protocol of astm b117. Modification of astm b117 salt spray corrosion test and. Astm b117 salt spray corrosion test chamber manufacturers. Astm b117 19 standard practice for operating salt spray fog. Astm b117 the oldest and most wildly used cabinet test is astm b117 test method of salt spray fog testing, a test that introduces a spray in a closed chamber where some specimens are exposed at specific locations and angles. The salt spray test is one of the most widespread and longestablished corrosion tests. Electric cycling salt spray test chamber with anti. This test was used to demonstrate the corrosive effects which would result, if a competitor were to extol the benefits of t. Application and use of salt fog, humidity, cyclic, and gas tests.
Astm b11719 covers the apparatus, procedure, and guidelines to create and sustain the salt spray fog test environment. One of the main things to take in consideration is that of the astm b117 standard practice for operating salt spray fog apparatus specification. Powder but failed to meet the recommended film thickness requirements. Astm b117 is a salt spray test used to produce relative corrosion resistance information for specimens of metals and coated metals exposed in a standardized. China electronic laboratory used salt spray and corrosion test chamber, find details about china test chamber, salt spray chamber from electronic laboratory used salt spray and corrosion test chamber guangdong grande automatic test equipment limited. The unit was initiated and set to degrees fahrenheit. Electronic laboratory used salt spray and corrosion test.
The astm b117 standard for operating a salt fog or salt spray cabinet, aka the salt spray or salt fog test, is a widely used corrosion test required by many companies and government agencies, including the us dod and doe. Astm b117 or salt spray test takes these productsmaterials and exposes them to controlled conditions to measure these corrosive properties. The salt spray test is a standardized and popular corrosion. The astm b117 standard was designed to guide technicians in testing coated metals and alloys resistance to the corrosion caused by salt water. Corrosion testing on different types of steel such as ss316h, ss316n2, ss316n1, and ss434h can be conducted using the highly standardized astm standard test method astm b117. Since different metals and surface coatings offer different levels of resistance to corrosion, the astm b117 test will enable you to get a better comparison about the effectiveness of their protection. The purpose of the astm b117 salt spray test is to provide a controlled accelerated corrosive environment to evaluate the relative corrosion resistance of the coating, substrate, or part itself. This astm b117 salt spray corrosion test chamber comes in a variety of sizes and performance configurations and can offer an ideal solution for any industry or product. Astm b117 is a salt spray test used to produce relative corrosion resistance information for specimens of metals and coated metals exposed in a standardized corrosive environment. In fact, this is not to be considered as the only existing. Salt spray and salt fog testing astm b117 is an american standard that provides a controlled accelerated corrosive environment to evaluate the coatings or substrates corrosive resistance. Salt spray fog corrosion testing chamber can determine the corrosion resistance of iron metal or the iron metal inorganic film or organic film test, such as car rearview mirror, car audio, automotive electronics, automotive lighting, automotive lamps, motocycle lamps, motocycle rearview mirror, electrical. There was zero surface corrosion and zero spots or pitting.
The salt spray testing procedure is performed to test the resistance strength of paints and coatings to corrosion. Now, choose astm b117 salt spray corrosion test chamber that fits your performance, precision and testing needs from our company, lib environmental. Astmb117 standard practice for operating salt spray. Standard practice for operating salt spray fog apparatus1. Iso 9227 corrosion tests in artificial atmospheres salt spray tests, 2006.
The main reason of using the salt spray testing or the salt fog testing is to determine the effects of corrosion on your specimens. Astm b117 standard practice for operating salt spray. After the test panels were treated with eckbond exterior bond they were placed in a salt spray chamber in accordance with astmb117 for a period of 24 hours. Astm b117 operating salt spray fog apparatus can be used to test the relative resistance to corrosion of coated and uncoated metallic specimens, when exposed to a salt spray climate at an elevated temperature. Modification of astm b117 salt spray corrosion test and its correlation to field measurements of silver corrosion march 2012 corrosion houston tx 683. The salt spray test is a standardized test method astm b117 used to check corrosion resistance of coated or noncoated metallic samples.
The test subject is continuously exposed to the same corrosive atmosphere inside the chamber, then evaluated after removal from the environment. The salt spray or salt fog test is a standardized and popular corrosion test method, used to. The astm b117 test method involves creating a controlled accelerated corrosive environment in a salt spray cabinet or chamber to determine the effects of corrosion on a test specimen. Assured testing services has multiple chambers available to run parts and panels of many sizes for the astm b117 salt spray test. Each company that requests a salt spray test should have their own criteria for what constitutes a successful test. Salt spray testing salt fog testing astm b117 salt spray corrosion testing is used primarily to compare the corrosion resistance of painted or metal coated samples. Test specimens are placed in an enclosed salt spray cabinet or chamber and subjected to a continuous indirect spray of a neutral ph 6. Salt spray salt fog astm b117 ss and sse series salt neutral spray corrosion chambers salt fog, also known as the salt mist chamber, were built to meet the requirements of astm b117, iso 9227 neutral, cass, aass jis z 2374 neutral, cass, aass and din 50021. The results from the modified b117 test are correlated with the corrosion behavior and performance observed in field exposures. A number in parentheses indicates the year of last. Astm b117 salt fog and salt spray corrosion testing g2mt labs. Astm b117 salt spray testing assured testing services. Astm d610 is one of the many corrosion specifications used to evaluate samples that have been exposed. The accelerated standardized test measures the corrosion resistance of steel and other materials exposed to salt spray or fog.