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Significance and Use
5.1 This test method is primarily used as an acceptance test for products of zirconium, hafnium, and their alloys. This standard has been widely used in the development of new alloys, heat treating practices, and for evaluation of welding techniques.
5.2 Specimens are normally tested after careful etching and rinsing. Specimens with as-manufactured surfaces may also be tested without further surface removal.
5.3 When tubing with a second material clad on the inner surface is to be tested, the inner cladding shall be removed prior to the test.
1.1 This test method covers (1) the determination of mass gain, and (2) the surface inspection of products of zirconium, hafnium, and their alloys when corrosion tested in water at 680°F [360°C] or in steam at 750°F [400°C].
1.2 This test method is to be utilized in its entirety to the extent specified herein as a product acceptance test.
1.3 This test method may be used on wrought products, castings, powder metallurgy products, and weld metals.
1.4 Unless a single unit is used, for example corrosion mass gain in mg/dm2, the values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. SI values cannot be mixed with inch-pound values.
1.5 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 determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 9.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D888 Test Methods for Dissolved Oxygen in Water
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ICS Number Code 77.060 (Corrosion of metals); 77.120.99 (Other non-ferrous metals and their alloys)
UNSPSC Code 41114604(Corrosion testers)