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-m LEAD ' INBUGTr; 3 ASSOCIATION
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of tha Metallic lewd Prodocta Mrlalod
ittaebad la a reprint on "How Vo Maintain and Xnapect Lead Llnlata" ^felirtad la Um bris, 19)6 laaaa of ^Petrolem ieflner."
Tbit reprint la an abatract of tha paper praaantad bp a forwar dice of tha ataff before tha Society for Nondeatructire Taatlng at their anrwal coneeciioc in October, 1955, trtch waa aubeequertlp printed la tha Janearp-fabruarp, 1956 laaoa of "BocidattructlYa Taating," and reprinta circulated to pou aa Charteal Bulletin Bo. 63, datad April 3, 1956. A rewrite of that paper waa publlahad In tha Borerher, 1956 ltaua of "Chad cal fc-^inaarlnj" ^d will ba circulated at a chart cal bulletin aa aooo aa reprinta have bean racalrad.
The flrat of theae core eoeplata treatmenta of tha aub'act waa circulate! to our eailiop liat of approxinatelp 1,100 chert eal oca* atruction coepaniea, ehericel ar.plneera, char! cel ar.plnaarind profaaaort and othara intereatad in charted construction, and tha other will ba aladlarlp circulated abortlp.
Additional coplaa are areliable aa long aa our acqpplp larta.
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How to Maintain and Inspect Load Linings
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Howto Maintain and Inspect Lead Linings
Rrmuncc of lead lo chemical attack depends oo the protectrrc film formed when the lead corrodes. Keeping this film intact calb for proper inspection and mainte nance.
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Tb iiivi<ida %u tonectr^ by prrirxibaBy r%a^( thr bvH cd thr bqid at th* vti ioof <r*fh (o< a bad rugate j to form, la feorral k k brfte* practice to g-.qg-MJC rapcr-acne arr-ai by maimasyaj vtv trk i* cootpbftly f*B a* pnm>ir.
!o dar cjoe ef (ortomn which, k ibtarKn, do act rrj^Ur form a pro
tective Un and
not <ivudvt bad
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OtV )uua( cprmine pened by mb b*tc lb trad n*Jj diklr M^uric acid or, d poubW, b&if^ the twj with M
for a abort prrk*J k Uny in
to
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lb br(. The pomer cd pi ntip
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hrdrd bad lifur*^ m antally
Uatrd (cr bed dira&iiaaky, pio*
BoLa| m portuliy Tb Vd toaah
tm" m ^nerally u*rd lor the Utter
ttoo. Aitrr (rrreof the bad toxiart cd
a*y oQ tr ^rraae him*, a ddotr td*
lUi cd hydrwMorW acid (li pertrat
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bum lor 12 to 24 bun On owpcv
to^, a tori epo* induiirt mrfarr
KEMrTON R ROli, w*
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flood darooiirvuity, cat the other hud, c*fef*K br detected by tb odd wadi tree. Id cha eaer aHeaaoob* tssty he id, r4ys oa enhrr mmctL*nre* or *ptie" erjJx-iv lo the "fo
nance" netherj the tost fesuw^st trarwedtt an uh/aaeewe wn* iat cht metal ard the rdWvd vwt are dbUtvd. V%hn lb bad b ar(i hooded the wtm art not nAreted by the uref-bad buerfacr, w^wita* drrkte ac^ruh detected audUy a* omhFy esa* daitr unhoird nr partiaDy hrndrd area*.
In the "puke" method dbitiam Uf amt ihftxch the art*! otd k uhin * (Uw and k feibetrd abmi the ml of the to^e* tftd m *td they bit the oppoMie wtrfaee and art rrflrcuti Imprctkn by diranttin to made to atm caars (rom the ttod or oottodr d the m*H Thk vdnipe aho wr\et at a anodeunKtUr artftiod
fe cheeLjof the tbiclnctt ol the bod tkur^.
Another eororccrclilly practical method lor Uukf unbonded Mm, ihtofh Imwlrd to pruuit itodt, U to teal the vtrd and take the k* tonul tetngrratuee by iteam or ochertrue, to about 500 F, cool a* rapkOy m piailJt aad mtoiftc far bad buhhb* tohr pretence uouid Ub cate lack (4 bond.
Radjncraphk tethen^urt hat* her* iJnrlnjrJ for trk( brxh and bad M trtnrh k thre (ton toherr k H impMtkkl to mn^f the bncL Radioftaphy k practkal lor feratbf internal liin or pome Mtto Uk bn
net bnd itartf writ to bond dnwlkn
*Thk anirb k i (rednMMra *4 a jupt prrtrtaed it the ryttopowum on Doird cd Common In the Chemical Iwbiry, tpcMunrrd by the Nupn frm(ier V< tin <4 the MktUui ,W* rlkUi k Cw/r f/tfkffn and the Vakffdty f4 tkffd^ MTkK N V, May 10.
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