Additional test specimens were tested for corrosion in 5% nacl solution in. Modification of astm b117 salt spray corrosion test and its correlation to field measurements of silver corrosion march 2012 corrosion houston tx 683. Astbm b117 is also known as salt spray testing or fog testing. The salt spray test developed by the american society of testing and materials astm test b117 is one of the most widely adopted standards.
Standard practice for operating salt spray fog apparatus1. Its use is internationally widespread and its provisions have been frequently rewritten into the national standards of other countries, and also appear in other industry specific corrosion test standards. Zinc phosphate, gm2 supplemental coating coating thickness, m salt spray, h. Astm b117, prohibits the addition of anticaking agents, and also limits other impurities, as follows. This standard is issued under the fixed designation b117. The device must show no sign of corrosion after being exposed to a five percent salt solution for 24 hours. B368 test method for copperaccelerated acetic acid salt spray fog testing cass test. 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 testing was conducted using the qfog cct in accordance with the following standard. The test cabinet is maintained at 100% relative humidity at a temperature of 38c 100f.
Astm b117 07a standard practice for operating salt spray fog apparatus. At one time, the b117 test was the only option available. May 19, 2016 astm b117 testing, also known as a standard practice for operating salt spray fog apparatus, is used to analyze relative corrosion for specimens of metals and coated metals exposed to various simulated climatic conditions in a controlled environment. Pdf modification of astm b117 salt spray corrosion test. A 5% salt solution is still used just like a b117 salt fog but for an a1 test the solution must be acidified and to achieve this glacial acetic acid is added to obtain a ph of around 3. To calculate the mass of salt required in grams to mix 1 lof a 5 % salt solution, multiply. Iso 9227 ascott analytical standards ascott analytical. Astm b117 salt fog or salt spray test is a common corrosion test designed to provide corrosion. Astm b117 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. Suitable apparatus which may be used is described in appendix x1. Test parameters values salt solution 5 parts by weight of sodium chloride to 95 parts water ph range 6. Impurity content in the sodium chloride was confirmed to be below the limits given in astm b117, section 8. Adjustment to solution ph was made using analytical.
This standard is issued under the fixed designation b 117. Salt spray chamber for sale lanco salt spray inventory. We serve clients operating around the globe and hail from a variety of industries ranging from aerospace to manufacturing to pharmaceuticals. 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. Based on this chart, a plot is made of the percentage of replicate specimens with a given rating versus the immersion time figure 4. Its use is internation and its provisions have been rewritten into the national standards of other countries, iso 9227 is the european derivative of this standard.
The client provided specimens consisting of the substrates and coatings listed in the table, below. Ats and astm b117 salt spray testing ats has delivered testing, inspection, and engineering consulting services of superior quality for over 50 years. Purportedly used as early as 1914 with roots in the national bureau of standards, and formalized as an astm b117 specification in 1939 by the american society for testing and materials astm. The astm b117 salt spray fog test can range in length from 24 to 5000 hours usually in increments of 24 hours. Appendix x3 for measuring the corrosivity of neutral salt spray mix ml of hydrochloric acid sp gr 1. It is a destructive test, very scattered and not correlated with actual performance. Standard salt spray practice fog apparatus provides guidelines for the device that helps in recognizing corrosion resistance information. Astm b117 is an excellent reference document for the salt spray practitioner, with many helpful hints and tips contained in its useful appendixes. Astm b117 19 standard practice for operating salt spray. Typically, materials that will be tested are metallic although stone, ceramics and polymers can also be tested and finished with a surface coating. This testing practice was initially published in 1939 and rapidly gained worldwide acceptance. Acetic acid salt spray or g85 a1 is the first of the modified astm b117 tests. How to compare astm b117 salt spray and astm b368 cass test. Pdf laboratory salt spray testing has been used for many years to accelerate natural atmospheric exposures with limited success.
Astm b117 testing quality control micom laboratories. The pdf test conditions test test samples are placed in a closed chamber and are exposed to a continuous indirect spray of salt water solution also called fog or fog, which falls on samples at a rate of 1. Astm b11719 red standard practice for operating salt. The salt spray test or salt fog test is a standardised and popular corrosion test method. The test specimen was loaded into the test chamber in the orientations shown in figure 1. Standard practice for operating salt spray fog apparatus provides guidelines for an apparatus that is helpful in discerning corrosion resistance information. Corrosion is the decay of a material due to the chemical reaction with its environment. Astm g85 ascott analytical standards ascott analytical. Dec 04, 2018 norma astm b117 pdf astm b is the most widely adopted standard for salt spray testing. 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.
Requires vendor pricing confirmation at time of order. The american society of testing and materials astm test b117 is one of the most widely adopted standards for salt spray testing. Astm g85 accredited salt spray fog testing next day. As it became more widely known and used, it became embedded into myriad internal documents, procedures, forms, specifications, etc. Test specimens were subjected to salt spray testing in accordance with astm b117. Astm b11719 red standard practice for operating salt spray. B117 19 standard practice for operating salt spray fog apparatus testing apparatus test environment. The salt spray test or salt fog test is a standardized and popular corrosion test method, used to check corrosion resistance of materials and surface coatings. Astm b 117 97 standard practice for operating salt spray. Astm b 117 97 standard practice for operating salt spray fog apparatus created date. The salt spray test and its use in ranking stainless steels.
Astm b11707a standard practice for operating salt spray. Astm b117 testing method statement equipment ascott analytical. For the test, panels are placed in a 5% salt spray and fog atmosphere for measured periods of time. Astm b 117 97 standard practice for operating salt spray fog apparatus. This standard is issued under the fixed designation b. A number in parentheses indicates the year of last.
Pdf modification of astm b117 salt spray corrosion test and its. B117 consists of atomizing a salt solution into uniform droplets on specimens supported or suspended between 1530. The standard astm b117 or its equivalent cei 6006811 is used in this part to. B68 suitability of this test and correlation of results with service experience should be determined before it is specified for coating systems or materials other than those mentioned in this paragraph. The testing is performed in accordance with astm standard b117, standard practice for. The suffix to the main standard number indicates the year of publication. Despite the known shortcomings of the b117 test method, manufacturers, product designers, and specifiers still use it. It is also regularly updated, by an active and broad based astm subcommittee, so it is a standard that is continuously evolving. B368 test method for copperaccelerated acetic acid salt spray fog testing cass test d609 practice for preparation of coldrolled steel panels for testing paint, varnish, conversion coatings, and related coating products.
Any productmaterial that is exposed to the elements must be able to withstand corrosion. Performs a wide range of accelerated corrosion tests including, but not limited to. The astm g85 standard consists of a set of 5 modifications to the astm b117 continuous salt spray test. Apr 24, 2020 astm b117 07a pdf the salt spray or salt fog test is a standardized and popular corrosion test method, used to astm b was the first internationally recognized salt spray. Astm b117 was the first internationally recognized salt spray standard, originally published in 1939. Astm b117 is the oldest and most widely used of the salt spray cabinet tests. B117 07 standard practice for operating salt spray fog apparatus, controlled corrosive environment, corrosive conditions, determining mass loss, salt spray fog exposure. Salt spray fog condensate collection issues, astm b117. Technical note 5 astm b117 salt spray fog test aluminum. B117 11 standard practice for operating salt spray fog apparatus. May 11, 2020 astm b117 07a pdf the salt spray or salt fog test is a standardized and popular corrosion test method, used to astm b was the first internationally recognized salt spray. Astm b117 standard practice for operating salt spray fog apparatus. The astm b 11795 testing procedure is the hvac industry standard method of testing the acceptability and longevity of a paint finish.
Astm b117 19 standard practice for operating salt spray fog. B 117 97 standard practice for operating salt spray fog. Oct 24, 2018 astbm b117 is also known as salt spray testing or fog testing. Astm b117 standards ascott analytical standards ascott. Astm b117 salt spray test standard pdf salt spray or salt mist test is a standardized and popular method of testing corrosion, used to test the corrosive stability of materials and surface coatings. Test results are recorded monday thru saturday, except holidays. B117 11 standard practice for operating salt spray fog apparatus1 this standard is issued under the. Astm b 117 03 standard practice for operating salt spray fog. Salt spray testing salt spray testing was conducted in accordance with astm b117 at assured testing services, ridgway, pa. Fresh water ambient rinse with 30 45 second dwell times. The salt spray test or salt fog test is a standardized and popular corrosion test method, used to. The samples were compared with mild steel coated with commercial primer. Astm b117 salt spray fog testing astm b117 is the oldest and most widely used of the salt spray cabinet tests.
Astm b117 or salt spray test takes these productsmaterials and exposes continue reading astm b117. Nonchrome seal rinse with reverse osmosis water, with 30 45 second. Astm b117 testing quality control astm b117 testing, also known as a standard practice for operating salt spray fog, is used to analyze relative corrosion for specimens of metals and coated metals exposed to various simulated climatic conditions in a controlled environment. Astm b 117 97 standard practice for operating salt spray fog apparatus keywords. An example of a corrosion rating chart, taken from astm b895 is shown in figure 3. Astm b11719 salt mist test report ai technology, inc. To conclude, the salt spray test unfortunately has serious drawbacks. Astm b117 07 standard practice for operating salt spray. Nonchrome seal rinse with reverse osmosis water, with 30 45 second dwell times. The punctureresistant footwear must show no signs of cracking after being. Astm g85 accredited salt spray fog testing next day testing. For example, the worlds most popular salt spray test standard. For a guide to how to test astm b117 with the ascott camera, click below. Astm b117 salt fog testing service next day testing.
These modifications are referred to in astm g85 as annexes a1 to a5 and are applicable to ferrous and nonferrous metals, and also to organic and inorganic coatings. 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. Astm f2411 performance requirements for protective. Astm b117, 2019 edition, november 1, 2019 standard practice for operating salt spray fog apparatus this practice covers the apparatus, procedure, and conditions required to create and maintain the salt spray fog test environment. D609 practice for preparation of coldrolled steel panels for testing paint, varnish, conversion coatings, and related coating. Salt spray fog testing to astm b117 18 test procedure. If they only require that the nonknurled areas satm cass, then you should be fine. Pdf modification of astm b117 salt spray corrosion test and. The specimens were supported on inert racks in the salt spray chamber. Astm b 117 97 standard practice for operating salt spray fog. For annual book of astm standards volume information, refer to the standards document summary page on the astm website. Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard astm standards. In this test the fasteners are placed in a sealed cabinet and exposed to a 5% sodium chloride nacl spray. What is written in the standard practice for operating salt spray fog apparatus.
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