ASTM B154-05

Standard Test Method for Mercurous Nitrate Test for Copper Alloys

SIGNIFICANCE AND USE
This test method is an accelerated test for detecting the presence of residual (internal) stresses that might result in failure of individual parts in storage or in service due to stress corrosion cracking.  
This test method is not intended for use on assemblies or parts under applied stress. If used for that purpose, the results shall be for information only and not a cause for rejection of the assembly, its component parts, or the original mill product.
SCOPE
1.1 This test method describes the technique for conducting the mercurous nitrate test for residual stresses in wrought copper and cast or wrought copper-based alloy products. This test method is intended to cover the mercurous nitrate test of certain copper-alloy products supplied in accordance with ASTM specifications prepared by Committee B05. This test method is not intended to be used on assembled parts.
Note 1—For any particular copper alloy, reference should be made to the material specification.
1.2  Units—The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This 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 and health practices and determines the applicability of regulatory limitations prior to use. For specific precautionary and hazard statements see Sections 1, 6, and 7. (Warning—Mercury is a definite health hazard in use and disposal.)

General Information

• Status: Historical
• Publication Date: 30-Sep-2005
• ICS: 77.120.30 - Copper and copper alloys
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.06 - Methods of Test

Relations

• Replaces: ASTM B154-01 - Standard Test Method for Mercurous Nitrate Test for Copper and Copper Alloys
• Effective Date: 01-Oct-2005
• Replaced By: ASTM B154-12 - Standard Test Method for Mercurous Nitrate Test for Copper Alloys
• Effective Date: 01-Oct-2012
• Referred By: ASTM B43-20 - Standard Specification for Seamless Red Brass Pipe, Standard Sizes
• Effective Date: 01-Oct-2005
• Referred By: ASTM F468-23 - Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use
• Effective Date: 01-Oct-2005
• Referred By: ASTM F468M-06(2018) - Standard Specification for Nonferrous Bolts, Hex Cap Screws, and Studs for General Use (Metric)
• Effective Date: 01-Oct-2005
• Referred By: ASTM B552-19 - Standard Specification for Seamless and Welded Copper–Nickel Tubes for Water Desalting Plants
• Effective Date: 01-Oct-2005
• Referred By: ASTM B138/B138M-11(2017) - Standard Specification for Manganese Bronze Rod, Bar, and Shapes
• Effective Date: 01-Oct-2005
• Referred By: ASTM B371/B371M-19 - Standard Specification for Copper-Zinc-Silicon Alloy Rod
• Effective Date: 01-Oct-2005
• Referred By: ASTM B950-22 - Standard Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
• Effective Date: 01-Oct-2005
• Referred By: ASTM B251/B251M-17 - Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube
• Effective Date: 01-Oct-2005
• Referred By: ASTM B19-20 - Standard Specification for Cartridge Brass Sheet, Strip, Plate, Bar, and Disks
• Effective Date: 01-Oct-2005
• Referred By: ASTM B858-06(2018) - Standard Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys
• Effective Date: 01-Oct-2005
• Referred By: ASTM B395/B395M-18 - Standard Specification for U-Bend Seamless Copper and Copper Alloy Heat Exchanger and Condenser Tubes
• Effective Date: 01-Oct-2005
• Referred By: ASTM B150/B150M-19 - Standard Specification for Aluminum Bronze Rod, Bar, and Shapes
• Effective Date: 01-Oct-2005
• Referred By: ASTM B543/B543M-18 - Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube
• Effective Date: 01-Oct-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B154 − 05
StandardTest Method for
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Mercurous Nitrate Test for Copper Alloys
This standard is issued under the fixed designation B154; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 5. Significance and Use
1.1 This test method describes the technique for conducting 5.1 This test method is an accelerated test for detecting the
the mercurous nitrate test for residual stresses in wrought presence of residual (internal) stresses that might result in
copper alloy mill products. failure of individual parts in storage or in service due to stress
corrosion cracking.
NOTE 1—For any particular copper alloy, reference should be made to
the material specification.
5.2 Thistestmethodisnotintendedforuseonassembliesor
parts under applied stress. If used for that purpose, the results
1.2 Units—The values stated in SI units are to be regarded
shall be for information only and not a cause for rejection of
as the standard. The values given in parentheses are for
the assembly, its component parts, or the original mill product.
information only.
1.3 This standard does not purport to address all of the
6. Reagents and Materials
safety concerns, if any, associated with its use. It is the
6.1 Purity of Reagents—Reagent grade chemicals shall be
responsibility of the user of this standard to establish appro-
used in all tests. Unless otherwise indicated, it is intended that
priate safety and health practices and determines the applica-
all reagents conform to the specifications of the Committee on
bility of regulatory limitations prior to use. For specific
Analytical Reagent of the American Chemical Society where
precautionary and hazard statements see Sections 1, 6, and7.
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such specifications are available. Other grades may be used,
(Warning—Mercury is a definite health hazard in use and
provided it is first ascertained that the reagent is of sufficiently
disposal.)
high purity to permit its use without lessening the accuracy of
2. Referenced Documents
the determination.
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2.1 ASTM Standards:
6.2 Purity of Water—Unless otherwise indicated, references
B846Terminology for Copper and Copper Alloys
to water shall be understood to meanType IVreagent water or
D1193Specification for Reagent Water
better, as defined of Specification D1193.
6.3 Mercurous Nitrate Solution—The solution shall be an
3. Terminology
aqueous mercurous nitrate solution containing 10 g of mercu-
3.1 For terms related to copper and copper alloys, refer to
rous nitrate solution (HgNO ) and 10 mL of nitiric acid
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Terminology B846.
(HNO ) (sp gr 1.42) per litre of solution.
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4. Summary of Test Method 6.4 Preparation—The aqueous mercurous nitrate solution
shallbepreparedbyeitherofthefollowingprocedures,AorB.
4.1 The prepared test specimen is completely immersed in
Used solutions may be replenished as described in 6.5.
the mercurous nitrate test solution for 30 min at ambient
6.4.1 Procedure A—Dissolve 11.4 g of HgNO ·2HOor
3 2
temperature. Upon removal from the solution, the test speci-
10.7 g of HgNO ·H O in approximately 40 mL of distilled
3 2
men is washed and immediately examined visually for cracks.
water acidified with 10 mL of HNO (sp gr 1.42). After the
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crystals are completely dissolved, dilute the solution with
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This test method is under the jurisdiction ofASTM Committee B05 on Copper
water to 1000 mL. (Warning—The mercurous nitrate crystals
and Copper Alloys and is the direct responsibility of Subcommittee B05.06 on
Methods of Test.
Current edition approved Oct. 1, 2005. Published October 2005. Originally
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approved in 1941. Last previous edition approved in 2001 as B154–01. DOI: Reagent Chemicals, American Chemical Society Specifications , American
10.1520/B0154-05. Chemical Society, Washington, DC. For Suggestions on the testing of reagents not
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
*A Summary of Changes section appears at the end of this standard
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