Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM1 Embrittlement Detector Method)
|Publication Date:||15 October 2018|
|ICS Code (Boilers and heat exchangers):||27.060.30|
This practice,3,4known as the embrittlement-detect
NOTE 1-Cracks in a specimen after being subjected to this test indicate that the boiler water can cause embrittlement cracking, but not that the boiler in question necessarily has cracked or will crack.
The effectiveness of treatment to prevent cracking, as well as an indication of whether an unsafe condition exists, are shown by this practice. Such treatments are evaluated in terms of method specimen resistance to failure.
The practice may be applied to embrittlement resistance testing of steels other than boiler plate, provided that a duplicate, unexposed specimen does not crack when bent 90° on a 2-in. (51-mm) radius.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
This 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.
3This test method was developed during an investigation conducted under a cooperative agreement between the Joint Research Committee on Boiler Feedwater Studies and the United States Bureau of Mines. For information on the development of this test method reference may be made to the following: Schroeder and Berk, 1941 (1); 4 Schroeder, Berk, and Stoddard, 1941 (2); Transactions of the American Society of Mechanical Engineers, 1942 (3); Whirl and Purcell, 1942 (4);
4 The boldface numbers in parentheses refer to a list of references at the end of this standard.