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ASTM G44 PDF

ASTM G Standard Practice for Exposure of Metals and Alloys by Alternate Immersion in Neutral % Sodium Chloride Solution. This standard covers. Offering alternate immersion corrosion testing per the ASTM G44 Standard from our Houston Corrosion Laboratory. This practice covers procedures for making alternate ASTM Standards: 2 immersion stress corrosion tests in % sodium chloride D Practice for.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It sets forth the environmental conditions of the test and the means for controlling them. Therefore, strict test conditions are stipulated for maximum assurance that variations in results are attributable to variations in the material being tested.

Consequently, information should be established to allow comparisons of performances of the alloy of interest in the alternate immersion test and in natural environments. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Historical Version s – view previous versions of standard. It sets forth the environmental conditions aetm the test and the means for controlling them. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Note 2 — The alternate immersion concept can be useful for exposure of corrosion specimens in other solutions because the procedure and apparatus provide a controlled set of conditions. Details of this are beyond the scope g444 this practice. Link to Active This link will always route to the current Active version of astmm standard.

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The general requirements of this present practice are also applicable to such exposures except that the reagents used, the solution concentration, and the solution pH should be as specified in Specification D Therefore, strict test conditions are stipulated for maximum assurance that variations in results are attributable to variations in the material being tested. The values given in parentheses are for information only. It sets forth the environmental conditions of the test and the means for controlling them.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It does not cover tests in which specimens are placed in closed containers into which the solution is periodically pumped and the specimens not permitted to dry.

Note 1 — Alternate immersion stress corrosion exposures are sometimes made in substitute ocean water without heavy metals prepared in accordance with Specification D It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

For example, it does not predict the performance of aluminum alloys in highly acidic environments such as heated inhibited red fuming nitric acid IRFNA.

Information Discussion 0 Files Holdings. It is primarily for tests of aluminum alloys Test Method G47 and ferrous alloys, but may be used for other metals.

ASTM G44 Alternate Immersion Corrosion Testing

Active view current version of standard. Work Item s – proposed revisions of this standard. Work Item s – proposed revisions of this standard. Historically, it has been used for stress-corrosion cracking testing, but is often used for other forms of corrosion, such as uniform, pitting, intergranular, and galvanic.

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The values given in parentheses are for information only. Note 1-Alternate immersion axtm corrosion exposures are sometimes made in substitute ocean water without heavy metals prepared in accordance with Specification D Therefore, strict test conditions are stipulated for maximum assurance that variations in results are attributable to variations in the material being tested.

Note Reapproved Subject category Engineering Abstract 1. The general requirements of this present practice are also applicable to such exposures except that the reagents used, the solution concentration, and the solution pH should be as specified in Specification D Note 1 Alternate immersion stress corrosion exposures are sometimes made in substitute ocean water without heavy metals prepared in accordance with Specification D Standard practice for exposure of metals and alloys by alternate immersion in neutral 3.

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Record satmlast modified For such cases, the results of the alternate immersion test are of doubtful h44 until a relationship has been established between it and anticipated service environments. Historically, it has been used for stress-corrosion cracking testing, but is often used for other forms of corrosion, such as uniform, pitting, intergranular, and galvanic.

The general requirements of this present practice are also applicable to such exposures except that the reagents used, the solution concentration, and the solution pH should be as specified in Specification D