Find the most up-to-date version of ASTM B at Engineering Society for testing and Materials (ASTM). The symbol % as used in .. ASTM B () *) Method of acetic acid-salt spray (fog) testing. ASTM B *). Buy ASTM B 74(R) METHOD OF ACETIC ACID – SALT SPRAY (FOG) TESTING from SAI Global.

Author: Tegore Febar
Country: Armenia
Language: English (Spanish)
Genre: Politics
Published (Last): 7 March 2015
Pages: 23
PDF File Size: 16.43 Mb
ePub File Size: 6.57 Mb
ISBN: 713-4-47993-225-8
Downloads: 70578
Price: Free* [*Free Regsitration Required]
Uploader: Zulkilrajas

This is considered an out of date browser. This website has been developed with modern browsers in mind to allow it to display at its best in a wide variety of viewing situations – including mobile viewing.

But we haven’t supported older browsers like IE8. Both are excellent browsers. 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.

This test was originally published as ASTM G43, and is used to determine corrosion resistance in a severe marine atmosphere. The test was originally developed by the U S Navy sstm simulate exfoliation corrosion on aircraft carriers.

This test was developed by F. aztm

ASTM G85 | Standards | Ascott Analytical

These tests have evolved to address the need for a corrosion test capable of replicating the effects of naturally occurring corrosion and accelerate these effects.

This acceleration arises through the use 2b87 chemically altered salt spray solutions, often combined with other test climates and in most cases, the relatively rapid cycling of these test climates over time. The type of test chambers used for modified salt spray testing to ASTM G85 are generally similar to aatm chambers used for testing to ASTM B, but will often have some additional features, such as an automatic climate cycling control system.

Test specimens are placed in an enclosed chamber and exposed to a continuous indirect spray of acidified pH 3. This climate is maintained under constant steady state conditions. The test duration is variable. Test specimens are placed in an enclosed chamber, and exposed to a changing climate that comprises of the following 3 part repeating cycle.

  DAHIR DES OBLIGATIONS ET CONTRATS PDF

This is followed by 2. This is followed by 3. The number of cycle repeats and therefore the test duration is variable. Test specimens are placed in an enclosed chamber, and exposed to a changing climate that comprises of the following 2 part repeating cycle. Test specimens are placed in an enclosed chamber, and exposed to 1 of 2 possible changing climate cycles. In either case, the exposure to salt spray may be salt water spray or synthetic sea water spray.

The most appropriate test cycle and spray solutions are to be agreed between purchaser and seller. The astk climate cycle comprises of a continuous indirect spray of xstm pH 6. The second climate cycle comprises of 0.

This is followed by 0. This is followed by 1.

Sorry. You need to upgrade your browser

Can be used to test the relative resistance to corrosion of decorative chromium plating on steel and zinc based die castings, when exposed to an acetic acid salt spray climate at an elevated temperature. Can be used to test the relative resistance to corrosion of aluminium alloys when exposed to a changing climate of acetic acid salt spray, followed by air drying, followed by high humidity, all at an elevated temperature.

This test was developed for exfoliation testing on certain aluminum alloys. Exfoliation testing determines the rate at which corrosion products form and fall away from the body of the test sample.

Can be used to test the relative resistance to corrosion of coated or uncoated aluminium alloys and other metals, when exposed to an changing climate of acidified synthetic seawater spray, followed by a high humidity, both at an elevated temperature. Please note The test standard summaries are for general guidance only. Though believed to be accurate at the time of writing, this may change over time.

So this information should not be used as a substitute for referring to a complete test standard, at an appropriate revision level. In this context they can be considered to be equivalent and interchangeable terms.

  FRANCISCO TARREGA ROSITA PDF

Website design by Peter Bourne Communications. You need to upgrade your browser You are using Internet Explorer 8 This is considered an out of date browser. Contact Ascott for Further Information. Test Conditions ASTM G85 annex A1 — acetic acid salt spray test, continuous Test bb287 are placed in an enclosed chamber and exposed to a continuous indirect spray of acidified pH 3.

ASTM G85 annex A2 — cyclic acidified salt spray test Test specimens are placed in an enclosed chamber, and exposed to a changing climate that comprises of the following 3 part repeating cycle. ASTM G85 annex A3 — seawater acidified test, cyclic Test specimens are placed in an enclosed chamber, and exposed to a changing climate that comprises of the following 2 part repeating cycle.

ASTM G85 annex A4 — Sulphur dioxide SO2 salt spray test, cyclic Test specimens are placed in an enclosed chamber, and exposed to 1 of 2 possible changing climate cycles. Typical Applications ASTM G85 annex A1 – acetic acid salt spray test, continuous Can be used to test the relative resistance to corrosion of decorative chromium plating on awtm and zinc based die castings, when exposed to an acetic acid salt spray climate at an elevated temperature.

ASTM G85 annex A2 – cyclic acidified salt spray test Can be used to test the relative resistance to corrosion of aluminium alloys when awtm to a changing climate of acetic acid salt spray, followed by air drying, followed by high humidity, all at an elevated temperature.

ASTM G85 annex A3 – seawater acidified test, cyclic Can be used to test the relative resistance to corrosion of coated or uncoated aluminium alloys and other metals, when exposed to an changing climate of acidified synthetic seawater spray, followed by a high humidity, both at an elevated temperature.