ASTM-D807 › Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM Embrittlement Detector Method)
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1.1 This practice,3 known as the embrittlement-detector method, covers the apparatus and procedure for determining the embrittling or nonembrittling characteristics of the water in an operating boiler. The interpretation of the results shall be restricted to the limits set forth in 8.6.
1.2 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.
1.3 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.
1.4 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.
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.
boiler water; cracking; detector; embrittlement; intercrystalline; ICS Number Code 27.060.30 (Boilers and heat exchangers)
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27.060.30 (Boilers and heat exchangers Including steam pressure vessels Heat exchangers for medical use, see 11.040.10 Heat exchangers for the chemical industry, see 71.120.30 Heat exchangers for the petroleum and natural gas industry, see 75.180.20 Heating appliances for buildings, see 97.100)
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Jan. 1, 2014