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ASTM D807

Standard Test Method for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM Embrittlement Detector Method)

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Organization: ASTM
Publication Date: 10 May 1996
Status: inactive
Page Count: 6
ICS Code (Boilers and heat exchangers): 27.060.30
scope:

1. Scope

1.1 This test method, known as the embrittlement-detector test, 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 Section 12.

NOTE 1--The embrittlement detector was designed to reproduce closely the conditions existing in an actual boiler seam. It is considered probable that the individual conditions of leakage, concentration, and stress in the boiler seam can equal those in the detector. The essential difference between the detector and the boiler is that the former is so constructed and operated that these three major factors act simultaneously, continuously, and under the most favorable circumstances to produce cracking; whereas, in the boiler the three factors are brought together only under unique circumstances. Furthermore, in the detector any cracking is produced in a small test surface that can be inspected thoroughly, while the susceptible areas in a boiler are large and can be inspected only with difficulty. In these respects the embrittlement detector provides an accelerated test of the fourth condition necessary for embrittlement, the embrittling nature of the boiler water.

NOTE 2--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.

1.2 The effectiveness of treatment to prevent cracking, as well as an indication of whether an unsafe condition exists, are shown by this test. Such treatments are evaluated in terms of test specimen resistance to failure.

1.3 The test method 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 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.

Document History

October 15, 2018
Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM1 Embrittlement Detector Method)
This practice,3,4known as the embrittlement-detector method, covers the apparatus and procedure for determining the embrittling or nonembrittling characteristics of the water in an operating boiler....
January 1, 2014
Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM1 Embrittlement Detector Method)
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....
November 1, 2005
Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM Embrittlement Detector Method)
This practice,(Footnote 3) known as the embrittlement-detector method, covers the apparatus and procedure for determining the embrittling or nonembrittling characteristics of the water in an...
November 1, 2005
Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM Embrittlement Detector Method)
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....
June 10, 2000
Standard Practice for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM Embrittlement Detector Method)
This practice, 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....
ASTM D807
May 10, 1996
Standard Test Method for Assessing the Tendency of Industrial Boiler Waters to Cause Embrittlement (USBM Embrittlement Detector Method)
1. Scope 1.1 This test method, known as the embrittlement-detector test, covers the apparatus and procedure for determining the embrittling or nonembrittling characteristics of the water in an...
August 27, 1982
STANDARD TEST METHOD FOR ASSESSING THE TENDENCY OF INDUSTRIAL BOILER WATERS TO CAUSE EMBRITTLEMENT (USBM* EMBRITTLEMENT DETECTOR METHOD) (R 1990) (E1-1990)
A description is not available for this item.

References

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