Document MJD8x3QM1LEYONBvw0Nvm5gM

7m VOLUME EIGHTEEN 1950 . ! ? NUMBER ONE >U U1 *V VIDE WORLD PHOTO ./ striking 'view of the almost completed United Nations Secretariat Building. Red lead protects the structural steel against corrosion /ust as it has for years on the much older structure in the buck- ground. the Queensboro Bridge. See page 2. 4XEAir, INDUSTRIES. ASSOC-vIAvTIO N- v;^ LI 42595* Steelwork on United \atioos Secretariat Primed with Red Lead HE first of a group of buiidinzs to T-erve as L mted Nations world headquarters is nearing completion beside the East River in New Yoric City. This is the thirtv-nine storv ;ecretanat Building. Hidden under its glittering glass and marole exterior is a supporting -tructure containing almost fourteen thousand tons of structural steel pro tected bv a shop coat ot pure red lead paint. This partially completed frame i .'if' ' e a a a D t o : e ::ea < i e e t work .inaer :on tiruczion 'or :ke l nited \a: io ns Fec r"tar la t Building is 5 een <' o m one > t ih e l vnrtment windows iankine First Ave- iue. A etc York. work is shown in the accompanying photographs taken at various = tages during erection. The steelwork was fabricated and erected bv the .American Bridge Com pany with Dr. C. Earl 7A ebb. cnie! engineer, in charge of the project tor that company. Edwards and Hjorth were the consulting engineers. The rust inhibitive red lead coat was .'hop applied and required four thousand three hundred gallons ot paint conforming to Federal Specifi cation TT-P-36. This specification 'alls for a readv-mixed red lead-1 in<eed oil paint weighing at least 25 lb. per gallon with a minimum pigment content of 77.5 percent bv weight. The pigment is composed entirely ot red lead, containing not less than 97 percent PbjO,. This paint is particu larly well suited for structural steel priming since :t combines the essential protectiye features of corrosion in hibition ana good adhesion. Among the outstanding characteristics of red lead as a corrosion inhibitive pigment is its ability to prevent rust creep and undercutting around areas denuded bv scratching and abrading in transit from tniil to erection site. The shop coat w as applied bv spraving as illustrated below. Before appli cation of the paint, the steel was thor AI the plant of the American Bridge Co., suppliers of the steel for the 6..V. building, a uorkman l s shown applying a shop :oat of red lead to a steel girder. 4MER 3RIDCE CO oughly cleaned of rust, dirt and loose scaie bv means of wire brushing and .-craping--all oil and grease were aiso removed. The producer? ot structural sfeel have long realized that adequate surface preparation ranks equai in Importance with the selection ot the Nest quality paint. The planning of the l mted Nations headquarters is being carried out on an international scale befitting the world-wide scope ot the organization. VA all ace K. Harrison. 1. mted Nations director of planning, 'was ,-,--tsted in the various architectural and engineer ing aspects ot the project b\ eminent experts from ten ot the twentv-nine .Member nations. Also prominent in the planning and building are .Max Abramovitz. deputy director ot plan ning. and Mr. James A. Dawson, chief construction engineer. The IT N. Secretariat is one among manv world renowned -kv-v rapers and monumental works containing red lead protected structural steel. Dur able red lead paints of this type or specifically formulated to meet par ticular exposure demands are aiso widely used for initial painting and maintenance ot bridges, -hips, water tanks, gas holders, pipelines and in dustrial enuioment. Load Equipment Helps Solve * Industrial Water Pollution Problem j ONTAMINATION and water pol C lution are terms that mam indus own stream pollution and other in dustrial waste disposal statutes. The 1 trial plant operator* are r-estnmnz to effect of much legislation is that in- regard with growing alarm. The red- iustnal plants normally producing eral ater Pollution Aontroi Set ot acid or corrosive wastes can no longer '.'Mu gives concrete evidence tit na iisDose ot thtir -aste products o\ tion-wide concern tor this problem bv lumping them into the nearest river ilienns both nnancial and technical or pouring them dow n the drain. assistance to the stares in carrving out Located ,n the heart ot a heavilv their own -tream pollution control industrialized and populated area. h. programs. Important industrial states B. Pemck A Company. producers and in turn have taken up the precedent manutacturers ot botanical drugs and and strengthened enforcement ot their nne chemicals, eiiminated -what could s r c C `i ,, s -' ; * a ( ,, C i \ ra : c caos r _ -,r. >*i 1 i l 'V tON * ( "JRN '1," .UVD i" *a il S3 ' -0 -NSiDt OF sHtil im auSTNG 'DWAftOS '-'*0 jr>OW* ) war[Rial 3 iB st*0 ^ an mmc n t -fi S 'DP 1 8" -M*0 . : .5 . E so S3 i 'IP ASO 30TTDM 8 ' -E*Cs .21.8 l >0 -ot Ji EUS?1**SI0N 30LTS 4 ? DGl LX1T ibove, :he ail lead sewerage and sol:ent trap and neutralizer installed in a plant ot :he 5. B. Pemck cSr Co. Lett, a drrncine of the ?nuipment. have been a harmful source of sewage contamination bv installing a drum type sewage solvent trap and neutral izer constructed entireiv of antimomai lead. This is a unique installation, conceived and designed bv engineers of S. B. Penick and Company. Waste materials from one of the company's laboratories consists large ly of water which is often acid in reaction or mav be carrying small amounts of immiscible solvents. Since this waste product is corrosive and must enter the city sewage system, pre ventive action had to be taken at the source to neutralize the acid and also remove the immiscible materials. Most sewage systems cannot tolerate corrosives because of possible damage to sewer construction as well as the detrimental effect of these chemicals on normal sewage disposal operations. Certain immiscibles such as oils and solvents tend to hinder disposal op erations besides contributing much to the malodor of the sewage. In anv event, this company like many others throughout the country has success fully managed to eliminate, at the outset, many hazards which might otherwise have arisen as a result of indiscriminate disposal of contami nated liquid waste products. All of the chemical wastes from the mia. L I A2 59 5 7 iahoratorv enter from the right of the large iiiameter trap snown in the ii 1 ustration. Here the light immiscible sol vents rise to the surface and are dis tilled out continuously ov means of a 'ead -team coii located at this level: the -team exhausting into the .'hamtier. The solvent -list! Hate goes to the door above "here it a- collected tor -eparate oisnosai. Heavy immiscible -olvents tail to the bottom of the chamber and are removed at intervals ov opening the valve at the base. The balance ot the waste now substantially tree ot -lunges, solvents and oils, passes into the smaller diameter trap near the bottom and rises through a bed ot broken iimestone which neu tralize anv acids. Thus purged ot it; harmful contaminants, the purified waste "titers the sewer line near the top ot 'he neutralizing chamber. The Height ot this exit line is -o designed as to maintain a ronstani liquid level m tire large trap just above the steam coil. This taciiitates effective removal of the immiscibie solvents. The construction details ot this en ure unit are shown in the accompany ing lirawing. Antimomai lead >6 per cent i is used throughout as the mate rial ot construction because of its greater strength characteristics over that ot sott lead. The shells of both trans consist of 3-lb. antimomai lead while the top of the large trap and the ton and bottom ot the -mail one consist of 12-lb. antimonial lead. The -team coii is ! . in. antimomai lead pipe with a ;c.-in. wall thickness. This unique traD was installed a little over a rear ago orimariiv to protect the citv sewage lines. !t has performed this function -uccessfu i Iv . having been cleaned and recharged onlv once during this period. No evi dence ot corrosion ot the lead has been observable. Bathroom 16 \ 17 and a N interesting installation ot sheet A lead for waterproofing a large nan. a welded joint was made at the juncture. Lead boots or sleeves aiso bathroom was recently made in thwe elded to the pan were installed Lam da Lhi Alpha Fraternity House at around riser- and approximately a the Louisiana Mate University. The one foot upstand was used around the entire bathroom floor, measuring 16 entire room, excluding the entrance :>v 27 It. wa. completely covered with wav. To routine die area of greatest 3-lb. -iieet lead. possible -eepage. an extra o-in. up- The large area covered required stand welded to the pan. was installed -everal -ections of -heet lead which around the -bower .-tails them.-eives. were joined together with welded Lpon completion of the lead work burned i punts. W here lead fittings, and before the cement was laid, die of necessity, protruded through the entire pan and upstands were coated Sheet lead pun installed in the Lamda Cht Alpha fraternity house at Louisiana State liicersits. All joints are u elded and after testing a coating of aspnaltum was applied. with a high grade aspnaltum paint. This last is of particular importance as such sheet lead nan iaiiures a- nave come to our attention have seen at tributable to the absence ot :! 11- pro tection during tile concrete curing -tage. The t erdes Plumping ami Mealing do. of Baton Houge. La., weie he contractors. Inasmuch as the u-e >i -ingle ana multiple shower -tail.- is nrrea-ing. the following suggested specification for lead shower pan.-, along with the detailed drawings accnmpan \ in g thiarticle. "Ml probablv be of intere-t: 4-- -- Tl ! ILFbTF!) "PFt 1FH ATloNFuif LH A1) "HOW LK P \ \ ' bhower -tall i room 1 Two- -bud he completely lined u ith i lb. o il... 3 lb. I -beet lead pan- iurned at least 6 in. up the side wall- ail around. Lorners ot pans -hall be lidded tight ly against the upsiand and -oldered i welded I along the top. f.orner- if pans -hall be a lap joint prepared bv lapping one ,-ide of the up-tand ver the other at least 1 in. and -older;n welding' the vertical -cam. Top of upstands -hail I e Pa- s in. into notches In -turfs. I op- .;p. -lands shall be dressed tightly a.-a.r.-t L1 A 2 5 958 _EAD SHOWER PAN COATED WITH ASPHALTUM masonry aiis. .n rooms :no ,arae ') oe co\erea :>v j sinsie sneet m lead, -am? "i:ii:TLr '{jeer? -nan : o muDed .r .east ,:i. ,:i mrection -w now and a e ! 11 e'i - (i e re i - : a -Miier -vseaiea imueen mo mens to me `.Hath u :;ie o\rr:jp. neicrete inner nans -nan . o Proliant m a -mourn umsn m .. nmuie a 'nneru ana ann. .inn me :eaa .wu coatea on bom -oies 'Aim a _o<>u _rr.iile 1 r ...mnaitum. ^ non !i.;iiinner 'miT '-nail m arm ami even men naii beaus set. ana naae -t w ml-easoned . m. noarns mvereri -nth n.-onait - imoreimatea mnidins inner ^ eiamnii it .east .0 n. oer .muare. inside ot nans on wood toors -nail :e '% e 1 -.-oaten w un a aoon ,:p.a mixture 'nan .e useu an-ue nans n iiiiaiaainn mr :i.e. Rans - saii ne aranen :o me i->->r main n men ' h e 'naii e ' c a r e i ' - > i n e r e a eidea* amneu -he trap mime sail ne antermnk mu w-rn mies provided m 'ne main usi doo\e me can. : lie man -nail : -j named inn nan a I led 'a ah water as a met net ore installing the cement anti tiie. Il nans are iett oom without immeuuteiv n-tai 1 in2 uie. :hev -nail oe protected nv neavv muidina oauer mtii uled 'er. The I se of Lead in Lubricants ? \RT I tom u an became detached .iistean L RI?s</ me a-t war the Rritisu ot Moatins to the surrace anti tormins? D :mi 1'. m Navv Submarine ^erv- in oii slick. Lubrication experts trom e nan . . u;e mm a 'erious nnm- -everai prominent \menean umnan- em: Hie 'act that oil slick floating on ;es approacneu tne problem in m mu me suriace *>i the sea couid be a tatai to increase me soecinc ara\tc\ oi the .".prA.n ' i -mnmanne n m i l n m --e- :;eam me >urrare. it became esneemi l\ mnaerou- n me atter '-^ars of the ^ar w uen allied submarines mrried :t;e attach to our enemies 'tiores arid '.arbors. '!rMii^iit-r -mitm neri'-'nne:-. m-ao- I 1 [ i ; i :../ii!iis .. i, au ... <- unnratea to assure proper tunetion- . a . bit ' :;r : >i iern o as m "mu .: ..rrii'dfit ' mu * < miiu - >mk to me ( ubneant so mat it woiiui s-uii i unction .is a wafer- ana mrromon resistant ojoncant out wouid no mnser boat. Vtter "onsiueraoie o^arrn ann e'-::'erimeruatiori a tormuia --as ue\eiooed in 'a men a calcium im.se arease :r n .nMf.'l nmSto a "o1 >ea jn a.i .xoosea bearing surfaces. llA25^59 was loaded with rtnelv dispersed pow dered metallic lead. The lead added in this form save the results desired: Specific gravity of the lubricant was greater than that of sea water and could no longer form a tell tale oil siick on the suriace. Furthermore the lubricating characteristics and waterand corrosion-resistance were en hanced bv the presence of the lead. fVhile the development of a non slick. top-side lubricant served a uniriue junction In submarine war fare. powdered lead as an additive in lubricants has served tor many vears in peacetime applications. Lead in the form of fine powder intimately mixed with grease markedly improves its iubrirating properties. High quality leaded lubricants contain an averaze of 20 per cent hy weight of metallic lead which is introduced to the grease during agitation. In use. the grease acts as a vehicle to carrv particles of lead powder to the gear or wearing surfaces where, under pressure, the lead powder coa lesces and forms a uniform laver or Sim of lead. An important and valu able property of 'iich a lubricant is the fact that the extremely tenacious lead lining or covering fills score marks, pitted or worn surfaces and thus, in effect, renews them. Once this has taken place, the lead coating itself becomes the bearing surface and since lead has excellent anti-friction prop erties. the result is smooth, frictionfree. auiet operation. Lubricants containing metallic lead are exceptionally valuable in appli cations where gears and bearings are open or exposed to dirt, grit and abra sive materials. The comparatively soft film of lead is capable of absorbing Typical of me heavy service gears for umich leaded greases ire beneficial in pro tectine tooth sur faces. 'HE Fa LK CORP such materials without injuring the bearing surface, borne large Herring bone gears tvpical of those with which leaded lubricants are used are shown in the accompanying illustration. Bv guarding against the combined action of corrosive mine waters and abrasion from .-.limes and grit, leaded greases have found -.vide application in the mining industry, in mill table gears and bearings, wire rope ana cable, bail mills, hoists and pumps. The use of powdered lead greases on w ire rope which consists ot strands of wire surrounding a central core of hemp roDe is noteworthy. This SDeciai grease is applied to the hemp to pre vent excessive saueezing of the indi vidual fibers as well 3s to provide con tinuous lubrication to the interna! wire strands. In this manner kmcking of the "ire strands and deformation of the core sections are largely elimi nated. There are several lead greases on .4 pinion drive geaami shou in e in > onl r o l ii < t e m o! i s plash lubricator The important lubri cating sections are indicated and are typical ot service m ithtch leaded lubri cants are used. THE FALK CORP -he market todav Ahich contain the :ripie combination ot metallic lead powder, litharge and lead soaDs. buch :omDinations result .n lubricants vnich materially reduce Iriction and consequently lower the operating tem perature. They have an increased load carrying abiiitv :n addition to pre enting wear and corrosion, head -caps in a lubricant enhance the load tarn ing canacitv at extreme pres-ure agents and m addition are highly beneficial m annrovine resistance to corrosion a hen water is present. Red lean and sometimes h [barge are added to ordinary grease :or use as a drill stem lubricant in oil well drilling operations. The lead com pounds act as anti-gailing agents on threaded joints. Red lead plus grease has also found extensive use as a thread jointing comDound for nuts and bolts exDosed to high temperature service such as on locomotives and boiler installations. .Not manv vears ago the use of addi tives in grease was almost unknown. Today additives to give extreme pres sure properties, hign melting points, acid resistance, increased tenacity and tackiness, water resistance, foam re sistance as well as other properties are available in manv different modi fications and are widely used. Part II which will aDpear m the next issue ot LEAD will describe how greases compounded with lead soaps are made, where thev are used and how they function. 6- - L I A25960 Lead Outstanding in Accelerated Corrosion Studv | N a recent test ot \ arious materials used in -oii waste and vent lines .'(.inducted under accelerated 'rendi tions in rort Worth. Texas, lead pipe Droved to tie outstanding, having a relative life expectance ot more than -ix times anv ot the other materials tested. The results ot the test, outlined in a paper presented at the 1949 annual convention of the American Society ot Pamtarv Engineering. was pre pared from data developed bv John D. Kane, chief plumbing inspector. De partment of Public Works. Fort W orth. Texas. The test samples, of materials cus tomarily used for soil, waste and vent lines and those recently sugzesied lor this use. were approximately 2 ft. in length and conformed to established plumbing size specifications. The sam ples were placed in a wooden rack which was then placed in a manhole carrying the return sludge from the Fort Worth sewage disposal plant's aeration basin. The samples were not submerged in the sewage but were kept 18 in. above the water line. Tests of the conditions surroundinz the test -amples showed the sewage to be alkame. the condensed moisture on the .-amples acid and the atmosphere sur rounding the test pieces to contain hvdrogen sulphide. Of course, being an accelerated test, the conditions ot the test were more stnnzent than orainariiv found in the piumbing system but all of these conditions are present in the ordinary waste system to a lesser degree. The duration of the test was one vear and alter this time, the weight loss of the lead, a simple method of figuring corrosion, was less than anv of the other materials tested. In addi tion. the lead was the only material not affected bv pitting, whereas all of the others were pitted in varying de grees and in one case, had pitted corn- frit. The pipe samples after under going me lest. The lead sample, -iireme right, is sail In perfect condition .n contrast to the others, ail severely orroaed and pitted. Below, the wooden lest -ack and exposure site. The test rack ucas placed m the man hole shown in the foreground. pletely throuzh the wall of the pipe. This particular sample had com pletely failed in six months. Complete copies of the paper en titled "Comparative Corrosion Studv of ioii. W aste and Vent Pipe Mate rials'' are available bv writing to the Dead Industries Association. 420 Lexinzton Avenue. New York 17, N. Y. Photograph Made with Radioactive Ore EAD dust, .-pnnkled over tiie word L* MONITOR winch, still wet with ink and placed between an unexposed him and native radioactive ore from .Montana, produced the accompanying photograph after 30 hours in the dark room. The original print was made bv John Eieslein, son of the publisher of the Boulder i Mont. I MONITOR. The radioactive uranium ore was found on the dump ot the Free Enterprise mine. The Free Enterprise group is oper ated bv the Sunshine Mining Co. un der an agreement with the lessee. Elkhorn Mining Co. Ia B5961 MEMBERS OF THE LEAD INDUSTRIES ASSOCIATION aLPH \ me t \l f . :n c Hrnokivn N \ "HE ,\I L R IL .* X MEi \L > O . LTD '. r "a \ ij r K. N . i - M F R U '\ -MELTING 4 R E F i N L\ i, m New \ ork X. \ . 3 E R > a w 1 M P CN\ INC. 'JP':iaapinnid. La `BROKEN HILL C'iuCI ATED 'MELTER' F R()C K 1 H \R\ LTD Me-hi'-armr v j M:3I A SHAKEN MILL --'LTH. LTD Mm brume . u'irana H'\Kr-. HILL A * LL!\ \.\ * M \ I \ i . -. \ D ' A. r.MR A TIN fi ) n c -Mz z . Idaho M HR I DGE -MFLTING '0. jmnr 'Uc M a.-- * RRt; HE C i f. 'PEER c'MRP '" ' 'it k N \ THE . mV->1 ID \TED MINING -i sMKLTiNi. ' 'ML \ Vi : F N-.N if) \ _ I'D Mnntreai jnaaa D\\ MINE- . N a A E AlTiERFRouF :>i\ i*iox L E \D O \ IL 00 V.ii ire Llano -;ion. I il icuzo 111 ' .iuL'bNT :r a E Mol Rs & '.0 i.Na 'A Lrr.inzton. Dei. THE EAGLE PIl HER i'OMPlW .; n c: n n a u. u n i u :h f e l e c t r ic c c t o -u t e ; >mp \n \ T >ie<jo. ()h to "HE ELECTRIC -TORAGE 3ATTER\ LOMI`\.\\ hiiadeid nia. ?3 r.TKVL KPOR \ riON A i1" ;rk . X \ EU5T0X LEAD CO. Th? GUiden 'To 'iranton. Pa. '.\C LEA.D DIM'LjN National Lead Co > Uharir-Mon. 'A' ' a. L\ \X< METAL CO .. At lama. Ga. -EDFRU- MINING ii 'MELTING CO New \ ork. X i FEDERATED METALS DIWslON OF CMERIC-N MELTING 4 REFINING CO THE FIRESTONE TIRE 4 RUBBER CO. New York X \ . -. kron. 'Ohio THE FI.EMM LEAD CO [Xi V P FULLER 4 CO .one Diana Cuy X V. 'an Francisco, i ai. GARDINER MET AL CO LEXER AL LEAD MAXITACTt RING 00 OLASER LEAD CO.. INC. Chicazo. HI Den \ pr o o 3 rook An. X \ . GOLDSMITH RROs -MELTING A- REFINING Co Chicazo III HAMMOND LEAD PRODUCTS INC Hammonn ina HEA'L.A MIXING CO. HUDSON ^MELTING 4 REFINING CO IMPERIAL TYPE METAL CO Waiiace. Idaho \ e* ark . X j 1'hiiadeinnia. Pa IN t ERX aTIONAL 'MELTING 4 REFINING '() Anaconda .'aies '. o Azent'1 _ Nrw Pork. X THE JOHNSTON FOIL Ma n U F UTY RIN G `OM I' \ N \ s> Louis. Mo %N AFP MILLS, INC. .one i-imd C.ty, X V LE AD PRODUCTS CO H'-"i:acn. TeTas .nHX R. MacGREGOR LEAD CO II.: A LS R E FI N UN i, i. Q The (j,u]den Co > METRO 'MELTING frj ' "'.icazo. ill Hammond Inn 'hiMdp-nnia. Pa. MIKE HOKhE A11 \ IV G <V MULING ,n -j Heiena. Mont N ATION AL LEAD NO \ K'A PARK MINING i Nee'.ley. No RTH AMERICAN 'MELTING NO Cm A iimi.nzion. Dei. n o r t h b r o k e n h il l l t d ' le tjoume Australia NORTHWEST l e .c d c o mp \ X \ _'eiU> 'A'dan ~HE OKOXITE `.O. Passaic. X ' PARK UTAH CONSOLIDATED MINES CO i.i Lake 1 Lrv Uran : F \ N > \ L A ANT A 'MELTING & REFINING No Ph i one - on :a Pa PHELPS DODGE CORP i e w -rk X V RIAF.R 'MELTING 4 REFINING ''0 . L->. e ana Ohio ROCHESTER LEAD WORKS. '.NT ' T osEPH LF.AD (JO 'HATTUCK DENN MINING PORP \ C* \ r ,r K. , N \ . MLAER KING COALITION MIXES NQ. 'a.c Lake 1 Tty. L'tan 'ILVERSTEIX 4 PIXSOF INC "hicazo. III. -T AX D ARD ROLLING MILLS, INC. 3rook.lvn . X. A'. -UNSHINE MIXING >'0 . L .ik i ma. Wasn. UNITED AMERICAN AIETALs CORP 3rooklyn. X Y. L NOTED sTATEC SMELTING REFINING AND 'TUNING CO., INC .. Lew A'orx X Y. THE WCTORY WHITE METAL CO HYMAN YIF.XER 4 SONS Vveiana. tPhio Ricnmona \'a. M LCAX LEAD PRODUCTS CO ' I P. v. v.ixee. W is THE WENSLEY METAL PRODUCTS *'0 Denver. Cmo A ESTER.X ELECTRIC ''0. INC WHITE METAL ROLLING 4 'TAMPING t'ORF .-r'-v-Oyn . WINCHESTER REPEATING ARMS CO 'THE TINC CORP LTD \ e>* na'- en . onn. leiboume. '.u^iraiia * Associate Member. CORRECTION The following articles and reorints contain information drawings and soctfications on the >jse o1 i?ad products heiofui to architects. enQineen and othen in the construction industry. They are available, free of marge, uoon reouest to the Lead Industries Association. J20 Laxmgton Avenue. Mew Yort 17, N. Y. PROPERTY p r o t e c t io n it h w h it e LEAD PAINT ' i j jace ''viKiei `-n me -rme-'ri'P riuc junfiijiiv inrl viuiv ( :;ure n,ie eau naini *nn manun -Uiiiai i nu '*Ole> 'rimiuia* * n. i nminr ami limine .nMruri ion? .'or xterr>r an.i mirfiuf j>e 1 -Il 0^ OF PAINTS FOR ENCLOSED 'TRICT1RVL MENiHERs l> 'TEEL HOI MNC CON** TR l (.THIN n* H. a . PruT and R. V People*. HaMell* Memorial 1 n ti i u ce \ .i-pnm < i `aner *nnh 'a< reau '>`*fc)rp :he 'Ir-nr-ral A|e*-i;nc i( 'hr '.inrfiran Imn in<l >ip c i tosliluie M a' *Hiiti .|.-.n-nrp,l n- 4 nr k The -lyn n< u,je-i -niiN' . 1 'oiw- if naml \ $iems \n in \ e **t i Ca t io n o e p r ime r * t o r M V ft I N f v rMO*P1IFRlC ENA IRON M ENT* `.It G. J. A anilrr \ jik. Trrhmejl Director. Red Lead OiuMon. L^ad Industries Asso ciation n-tin- '< n nifMieatiun < >( 'wiiheur 'entrle mil f i rail m i x <* I rucment mtnier Her an e\noiire ,, e r m'< j if inrrr in.i nne-haif ran :n a -icorous narine 11 mo-v here Rmrinteo from ' official IHze^i. ] >,i n 11 > ned i>\ The Pedrrauon if I'aini ana N'arnisn t'r.xiuciion i">uhs RED LEAD TECHNICAL LETTERS \ .erirs uf :e<nnieal leuers l.duru t>v :he Reu Lead Dixi'inn. Lean [nd\jorie iponanon The oumPers and '.ule? folio* Sxaiiahle -roaraieiy ; Technical Leiler No. 3 -- Red Lead Primers for Aimo-pherte Exposure Technical LrMer N0. I --Red Lead Paints for Marine Exposures NEW MARINE PRIMERS 3t K. H. Roll and C. J. Vnnder A alk. Lead InHusiries Association i^n irurle m irmy ie'eioped paint printer? for neiais fTD0<ea :o marine aimo'oneres *riticn ?t - ;re<5i> for me nffwn * nn i noi a oamt iccnnnlozisL itf-orinied from Marine Engineerm? and Shippjuc ;le> ie* Ma rcti 1 .* A '* rORRO*ION FORI M \, r r j r < ,f ..nr n.icp ariii lr- 'm ihr 'i<r ,i( Irail 1 ii.iuTtai '< .......... -i i mno rur t ion ;n nniart *101 1 n- '..Joui'ur n.-.n;i.i,. iwmiilf -rnsratelv! I'hlorinr i 1 v. ih k - i) ii >r 1 < \ r 1. 1 f \ 1 rnfl 1 ior 1 r \cid 1 ni in. i r 1 a 1 Slm- |"| ' < 11o 11 rr 11- \i:.i 'Hiinmi ('hturtur Suipmir Diotidf. d. nrimiM from 1 N.mirai Fncin.-rrine ' GOMMERflVL ' f A N D V R D* : t..iJkin I.rad. l,*4* t*.4* *l * * orriiiHi ;mii 1.1 ;i 1 mu 'lie 1 !m crnnuMi 1 I'rtniwic Of- 1. r rnrn I Iit.i 11'l 1 " 11*- I * b r r> a TI Hi fn 1 )f ''nni- '' r i r timneti 'in- '.Kiniidi bureau uf s I a n.la ms. -Tr< lUf j mu- : i 11 i \ VEDEHAI. *PE IEIC\TION U -M25 For Pipr, IlrnI* anrt lrap. LEAD i'.irt nf -i-'riin i S' .if 'hr r-ierg| S'an.iariiv * f />. k | H.iK-c utl'mi inn > 11 ( a i ion nx -.in- '.dnx rrnnient Trim- nc Offlie FEDERAL *PF.C.I HC ATION TT-P-86. Paint ; Krd-Lr ad-Ba*s, Reads-Mixed ' nierx four '\ps nf red -rad h**f oaint* inrtuiilne to 'iii mine '"rm u lai Inna Manx intended application* mm LEAD WELDING \n nfurniainc *c|| 1$ orartirai ruide '.0 'cad -xciding Rrprinled 'rom ihe IVckjing Handhook. Third Edition > i> 1 r t y ;uinli j/iC'i (lie American Welding MATERIALS AND METHODS OF X-RAV PROTECTION Bv George 'inaer, Ariine Chief Radiation 'union. National Bureau of *iandard*. W ashinKion. D. (... and Georse C. Lac. nre. Ph.D.. National Research Council of Canada \ 1 >( u>sior* of 'he maienaU xuitahlc for u>e m snieid- .e Af ray .n-1 a I lai i,n? ReprintC'.l 'rom 'nxju>irtat Ru noerarinx a'1 \'n : Caii i < 1 In the -irticte entitled "Lean Rater Services L nder Grueling Conadions in \ eu: )ork. appearing in :ne last issue of "Lean. In'iume Seventeen, !949. 'v umber Four, a is interred that stamesmg of taps in a single scnce line is permuted b\ \ eu ) ork City. In a communication rrceueq 'rom dr. Joseph j. Hallutuv t.hief inspeclor. Bureau of Rater ^u d d I\. danhattan. he nates that u a tie " 1 lust cer tainly the sub-surface conditions m the Borough of 1 lan nation ire /he most severe tests tor sen no- pio<'s that mas be found unsubierr ana. 'hmugh sears of experience. it has been :ound that lead, due to its flexibility and its resistance to corrosion, is <>ne of the best materials for serf ice pipes J" and less in diameterJ net ertheless "This type of connection (siamrsmg to a single service ) is s peci ticails prohibit ed m Rule zzl'29. page 48. of the nates and regulations of this Department. " The editors of "Lead are indeed sorry for this inference. ph y s ic al an d c o r r o h o n c h ar ac t er is t ic s o f l e a d in t h e c h e mic a l INDl *TRY Bv K. H. Roil. Lead Industries A `on a f l on S mailed Mxus'inn ,if he u-r a ca j ,n t ic hem- : r a i indu-trx nre-entea oefore 1'e v*imna: A a non if furro-ion E.hCinee: I'unfprr'ur u>r:i Mil . M'1 I POX REQIEST. THE LE XD IVDlbTRIES x>-OCIATIO\ S'11.1. BE CUD TO MXIL "LExD" R ECILARLY. FREE IF i IIXRl.F. TO TIIOYE INTERESTED. X.ND SILL (.OOPERATE 1THOLT OBLIGATION IN THE >OLlT!ON OF YOI R LEXD I'ROIllfM^ 1 2 59 62 3 RIV 7T n . jV -A BLI-MFRs 3 v ! n r; \ s W .'3k .ITS IPWWW