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SECTION VIII-2
Subject Interpretation File No.
AD-160 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIII-2-07-02 07-1016
AF-110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIII-2-01-17 02-2792
AG-121 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIII-2-07-01 06-1272
AM-211, Fig. AM-211. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIII-2-04-12 03-1651
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Interpretation: VIII-2-01-17
Subject: Section VIII, Division 2 (2001 Edition), AF-110
Date Issued: April 24, 2003File: 02-2792
Question: In meeting the requirements of UG-79 of Section VIII, Division 1 and AF-111 of Section VIII,
Division 2, is the use of heat or flame permitted to correct the shape of pressure parts, provided the use of
these techniques does not impair the physical properties of the material?
Reply: Yes.
Note: This interpretation was inadvertently omitted from Vol. 53 of the interpretations. It also appears as
VIII-1-01-157.
Interpretation: VIII-2-04-12
Subject: Section VIII, Division 2 (2001 Edition, 2002 Addenda), AM-211, Fig. AM-211
Date Issued: February 24, 2005
File: 03-1651
Question: Is it the intent to allow the rounding to the nearest whole number of the average value of the
three impact test specimens as required by UG-84(c) and Fig. UG-84.1?
Reply: Yes.
Note: This interpretation was inadvertently omitted from Vol. 56 of the interpretations.
Interpretation: VIII-2-07-01
Subject: Section VIII, Divisions 1 and 2 (2004 Edition, 2006 Addenda), AG-121
Date Issued: February 6, 2007
File: 06-1272
Question: Is it prohibited by the rules of Section VIII, Division 1 or 2 for a vessel to be constructed to
the rules of either Division 1 or 2 that is used to contain a gas that is heated by use of a nuclear fuel?
Reply: No. However, see U-1(c)(1) or footnote 1 of AG-100.
Note: This interpretation also appears as VIII-1-07-19.
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Interpretation: VIII-2-07-02
Subject: Section VIII, Division 2 (2004 Edition, 2006 Addenda), AD-160
Date Issued: June 21, 2007File: 07-1016
Question: If the expected range of operating pressure variations does not exceed 20% of the design pressure
when using AD-160.2 and 15% of the design pressure when using AD-160.3, may these pressure cycles be
neglected when evaluating the exemption from fatigue analysis even though the number of cycles may be
much greater than 106?
Reply: Yes.