CTOD-Standard-Comparison.pdf

节选段落一：
CTOD Standard Comparison
The first CTOD test standard, BS 5762, was published in Great Britain in 1979 [18]. Ten
years later, ASTM published E1290, an American version of the CTOD standard. E1290 was
updated multiple times, most recently in 2008 [19].


节选段落二：
However, this standard was withdrawn
in 2012 for reasons set forth below. The original and subsequent British CTOD test
standards have been superseded by two ISO standards, 12135 [16] and 15653 [20]. The
former standard applies to base material and the latter pertains to weldments.


节选段落三：
As of this writing, the
majority of CTOD testing throughout the world is performed in accordance with the ISO
standards 12135 and 15653.
The ISO toughness testing standards use the hinge model for estimating CTOD, which is
virtually identical to the method in the original BS 5792 standard [18].