TABLE I.
PERCENTAGE OF PLATE AREA ALLOWED FOR REPAIRS
Plate Class
Area Allowed for Repairs
_____________
__________________________
I
1.0 pct.
II
1.5 pct.
III
2.0 pct.
3.5
REPORTS AND RESULTS
Reports containing the following information shall be submitted to the
Contracting Officer:
a. Identification of each production plate by heat number and plate
number, plate thickness, and the initial and final decibel settings
needed for correlation of the plate back reflection with the standard
reference block reflection as specified in paragraph EQUIPMENT
SENSITIVITY CALIBRATION. Heat number and plate number shall be
permanently recorded on each production plate.
b.
Place of plate inspection.
c.
Identification and description of the standard reference block.
d. Details of methods, types of waves used, search unit, frequencies,
inspection equipment identification, and calibration data with enough
detail to permit duplication of the inspection later.
e. Locations, dimensions, area (if any) of unacceptable defects and
their repairs. These may be noted on a sketch or marked-up drawing.
f. A record of repaired areas as well as the results of the repaired
area reinspection.
TABLE II.
SINGLE AND MULTIPLE AREA REJECTION LIMITS FOR LAMINAR TYPE FLAWS
No. of
Diameter of
Minimum Spacing
_______
________________
_______________
Class
Criterion
Defects
Enclosing Circle
Between Defects
_____
_________
_______
________________
_______________
I
T/4
Single
75 mm or 1/2
plate thickness,
whichever is
greater
Multiple
Same as single
Equal to or greater
than the maximum
dimension of the
larger defect
T/2
Single
90 mm or 5/8
plate thickness,
whichever is
greater
SECTION 05092A
Page 23
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