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 T ank Radiograph a) plate i s les s than or equa l to 10 mm (3/ 8 in.) thick o frst 3 m (10 t) ! each "elder o additional spot radiograph shall e taken in each additional 30 m o #t least $%& o the selected spots shall e at ' unctions o one random spot radiograph shall e taken in each ertical 'oint in the lo"est course ) great er than 10 mm (3/8 in.) ut less t han or equa l to $% mm (1 in.) o all 'unctions shall e radiographed o n the lo"est course* t"o spot radiographs shall e taken in each ertical  'oint+ one o the radiogra phs shall e as close to the ottom as is practicale* and the other shall e taken at random c) greater than $% mm (1 in.) thick shall e ull! radiographed. o , ertical 'oints shall e ull! radiographed o #ll 'unctions o ertical and hori-ontal 'oints in this thickness range shall e radiographed d)  The utt"eld ar ound the peripher! o an insert manhole or no--le shall e completel! radiographed. ne spot radiograph shall e taken in the frst 3 m (10 t) o completed hori-ontal utt 'oint o the same t!pe and thickness* Thereater* one radiograph shall e taken in each additional 0 m or doule"elded utt 'oints* one spot radiograph shall e taken on 10& o the radial 'oints2 () or single"elded utt 'oints "ith permanent or remoale ackup ar* one spot radiograph shall e taken on %0& o the radial 'oints.

Radiograph Tank

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7/21/2019 Radiograph Tank

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 Tank Radiograph

a) plate is less than or equal to 10 mm (3/8 in.) thicko frst 3 m (10 t) ! each "elder

o additional spot radiograph shall e taken in each additional 30 mo #t least $%& o the selected spots shall e at 'unctions

o one random spot radiograph shall e taken in each ertical 'oint in the

lo"est course

) greater than 10 mm (3/8 in.) ut less than or equal to $% mm (1 in.)o all 'unctions shall e radiographed

o n the lo"est course* t"o spot radiographs shall e taken in each ertical

 'oint+ one o the radiographs shall e as close to the ottom as is

practicale* and the other shall e taken at random

c) greater than $% mm (1 in.) thick shall e ull! radiographed.o ,ertical 'oints shall e ull! radiographed

o #ll 'unctions o ertical and hori-ontal 'oints in this thickness range shall e

radiographed

d)  The utt"eld around the peripher! o an insert manhole or no--le shall ecompletel! radiographed.

ne spot radiograph shall e taken in the frst 3 m (10 t) o completed hori-ontal

utt 'oint o the same t!pe and thickness* Thereater* one radiograph shall etaken in each additional 0 m

or doule"elded utt 'oints* one spot radiograph shall e taken on 10& o the

radial 'oints2 () or single"elded utt 'oints"ith permanent or remoale ackup ar* one spot radiograph shall e taken on%0& o the radial 'oints.