7/21/2019 Radiograph Tank

http://slidepdf.com/reader/full/radiograph-tank 1/1

 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.