In accordance with a spot radiograph Vertical 6.1.2.2, item a: one in the first 3 m (10 ft) and one in each of 30 m (100 ft)
Thereafter, 25% of Which shall only be at intersections.
2. Horizontal in accordance with 6.1.2.3 radiograph spot: one in the first 3 m (10 ft) and one in each of 60 m (200 ft) Thereafter.
3. Vertical spot in each vertical seam radiograph in the lowest course (see 6.1.2.2, item b). Spot radiographs có Satisfy the
requirements of Note 1 for the lowest sewing course Satisfy this requirement to be used.
4. Spot radiographs of all intersections over 10 mm (3/8 in.) (See 6.1.2.2, item b).
5. Spot radiograph of bottom of each vertical seam lowest in over 10 mm shell course (3/8 in.) (See 6.1.2.2, item b).
6. Complete radiograph of each vertical seam over 25 mm (1 in.). The complete sewing include the spot radiograph radiographs of the intersections if the film has a minimum width of 100 mm (4 in.) (See 6.1.2.2, item c).
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