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ASTM B 858 : 2006 : R2018

Current

Current

The latest, up-to-date edition.

Standard Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-01-2018

CONTAINED IN VOL. 02.01, 2018 Defines a procedure to determine the presence of residual stresses in wrought copper alloy products that may lead to stress corrosion cracking.

1.1This test method describes a procedure to determine the presence of residual stresses in wrought copper alloy products that may lead to stress corrosion cracking. An ammonia vapor atmosphere is used as an accelerated test.

1.2This test method is only suitable for products fabricated from copper alloys that are known to be susceptible to stress corrosion cracking in ammonia vapor atmospheres. It is intended to create an environmental condition of reproducible severity.

Note 1:It is well known that the critical step in the cracking mechanism is the development of an environment in the condensate film that occurs on the surface of the test specimen, and is rich in copper complex ions.

1.3The severity of this test method depends upon the pH of the corrosive solution. In Annex A1 are given four different atmospheres to which the product may be exposed, and the appropriate pH of the solution to be used for the test, depending on the risk level associated with the intended application.

1.3.1The appropriate pH value for the test shall be specified in the product specification, or as per established agreement between the supplier and purchaser, with respect to the alloy and its intended application.

1.4Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee
B 05
DocumentType
Test Method
Pages
4
ProductNote
Reconfirmed 2018
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM B 154 : 2016 : REDLINE Standard Test Method for Mercurous Nitrate Test for Copper Alloys
ASTM D 1193 : 1977 : R1983 : EDT 1 Standard Specification for Reagent Water
ASTM B 154 : 2016 Standard Test Method for Mercurous Nitrate Test for Copper Alloys
ASTM D 1193 : 2006 : R2011 Standard Specification for Reagent Water
ASTM D 1193 : 1991 Standard Specification for Reagent Water
ASTM B 846 : 2011-07 TERMINOLOGY FOR COPPER AND COPPER ALLOYS
ASTM D 1193 : 1970 Standard Specification For Reagent Water
ASTM D 1193 : 2006 Standard Specification for Reagent Water
ASTM D 1193 : 1999 Standard Specification for Reagent Water
ASTM D 1193 : 2006 : R2018 Standard Specification for Reagent Water
ASTM B 154 : 2016 : R2022 Standard Test Method for Mercurous Nitrate Test for Copper Alloys

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