50.5 mt.nsNe t.at ;ms!dun· - At 111�, tllll lolJowlllil ..U '•
emplo,.S in an l&l.traeonic te-t procedure. The ,.... .... mu ...........
an4 -ball be .a. anilabl- to the <»we"" or 11191117 ---- ..
(a) !be nrtaoe collllitlon ot tbe fol'll- alll11 '9 2'0-" -
.._,.. (n8), or better prior to iluUIW· JWU.W tile .,.,.,.
...U be ti. ti. toNip -terlal '*1ob w1ll4 ildld ...
vi th a mzml \ll truolllc test..
(b) Jbl'llaw- au be test.eel e1u.r 1dd.l- n.Uo..., or vlll1e
W. rot.aw to a peri)lbu'd ..,... ot -t _,. -.. 200
iDDbHper 1111Ute. fbe to.. lhaU be test.eel ... U.t
90Ull4 h ,.....s niUall7 tllro1P ta. torpaw ul 100 ,....,..
ot tol'li- wlme 19 aoftred.
(c) Por each 41-ter ot tbe tol'liaw mder test. t1- �
-- callbratec! (-" 5().4) 8ball be emploJWCI. !be ... ......,_. shall be bl'Ouchtinto cont.ct vi th tbe torgiaw ..race ud the ..,..., leDCtb -hall be ed,jut,..s eucb tbat the ...itat
eipal � the tir-t bet ntlection 18 llPPl'O:idate]1'
'J/4 ot the dbtanc- troa left to ript ecro" tbl catllode
rqtube. .
(d) on. ultruonic te-t shall then be pertcuwec!onr 100 percent.
ot the tors1111-circmt'erential area. S.Cb tramhoer path shall onrlap the pl'9Yiouetraneducer path bJ 50 percent
ot the traneducer db-ter.
(e) Bachindication •hall be cl&Hitied. u 11etatloll&17" or
11traveliftl". Stat1011&J7 indications 8ball be clet1m4 a-
aey indication vbicb, vben exhibited. on the catbode rq
tube, 1'9&1ne etatioll&J7on tbe IW9ep line vith 111mr
tr&Mducermvment. A travelirc illllicatlon eball be
defined aa &D,,Y indication vbicb, vbftnabibited on the
cathode rq tube, traveb either to the lett or right on
the sweep line vi tb 111nor traneducer mv-nt.
( r) All indicat.iou -hall be noted.aa -tatioDaJ"J'or troeliaw
and recorded in teru ot percentap ot ecl"Mll beipt. W
areas exbibitine loH ot beck retlect.ion in em--- ot 20
percent ot tbe nonl&l beck retleot.ion 9ball be ...S.-4 at
other anpl.at.iou (ealwlilll Dal' vave) to detemlm
vbetber tbere an iadicatiou preMnt.
(g) AD ultruold.c test. record 8ball inal'lll- a cc-pnbnab- de.ari�n in craphlc fora ot ta. i1m>lYedl.'oJ'lbl ....S- location. or all iadicatiou in mmeu ot ta. NIPD... ,_
tbe calibration !be record an -te tibe \Jpe ot
illllicatioD-.(tl'aT.UJWor -tatioM17)ml all v.a **1•
20 peroent. or snater ot -zml Not NfleoU..
1)
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