Document MGmoqgvOyR5akw9RBbV8ZZ9qx

VOL 35 NO. 1-Si 1972 ,r- LEAD PIPE JOINTS MEET TALL BUILDING PRESSURES Until --ceotn. a I s-ie quniion ol the dtsign or high rise r-uildmei. was --re made bi jo in ins tun ' ,,-;t. lengths of pijie with lead oakum louit. welding whether a storm drain would Irak if asteel plate to the open ends, and then -loppasr occurred at the bare At 62-lh.. providing a pump connection on our of m it- a head of water can rapidly build he end plates. to exert ruormous pressures on the drain pipe and iti jointj. t he t est pho c edur e In order to lax the queition to rest, a L'sini a hiph-capacitv, high-pressure research project was commissioned by pump connected lo a measuring (ice, the International Lead Zinc Research Or specimen! joints ere hydroslatieiilv ganization to test pressure limits for lead oalcum calked cast iron pipe joints. jiressurired at 100 psi for 15 minutti. Pressure was then increased at the rate The-e tests -howeq that the |Ointa held of 50 pai per minute with a hold of one an average of 300 psi. sufficient in meet minute at each 100 psi merement. At the the requirements of a SO 10 70 story appearance of a trace leak nery slight buildine. depending on construction. moisture seepaget the pressure mis re The threenagc test program covered conventional lead/oskum calked joints in plain -Lin. cast iten coated soil pipt, corded. Pressure sis continued until two or three drops of utter j|>pearad simul taneously on a joint At this point in- with and without a spigot bead end. and uncoaled with a beaded eno Test joints creased pressure mis applied until the joint failed or the pump failed to keep TAELE OF TUT HMUI.T SecontBA Sumoir P4-Ull P'lllu'l Lump 1 lOOpM-lOmm 2 100 pm*i Amin 3 i00pM-l0mr 4 190 mi-15 m#n 5 *90 Mi-15 fltoii 4 50 psi-lS min tfttauit iirtl <& 900 pm 275 pm 200 PM ISO PM P'Mtur* i#Mi IMWMI 17Ni 300 PM 27|pM 300 pM PrMM* jpmt iMluri 490 pM 490 pal 390 pm 490 pM ?0 DM 300ptl 400 PM 400 PM 490 pm -SO a* CpfflflIMMS HMfUMO Mia IpaO raiMO V* 9 *# look paralipp taint MPorotPO H* WltAMMO twnpt* |CiM IIBVIIM W* wiWHMMO SWMPIP /eifii Bopofoito * 4 SO MiO S mill 279 p m 323 p m 42SDM jomi Mpariiao tt*D#a009 MPP 1 i&C0ft-i5 mn 300 Ml 390 p m 090 pm jOlM tOD4flld pip# t ISC pai>is mm . 390 PM 420 PM 739 pH ioml itpprcm# VS* b#MP0 pip# h#4# 190 PM pTMOvr# #n#f lift *3 *90 8fl3 b m 300 pm 420 PM 700 PM netU tM eat altee lilt beaead wqa 11 'M wi-U mm 375 pm 420 PM Hpsi seseratee Vk* nateiMpelalMr i.n tease* ties 12 ISO mi-19 mm 400 psi 490 PM OSOpM tnaraiee ins- HeMtMpsi after IMt 13 ISO o m-iS mm 390 Ml 490 PM 090 pm eetraM */1- ftmaiMust after lilt wiwaaaae sample L up uith the Irak, In most instances uhen pressute on pipe having a spigot head was reduced to about 150 psi. the joint Mould continue tu hold the pressure for as long as Imo hours xith very slight leakage to lo 10 psi pressure drop per hourt. To krep man idusl skill from influenc ing the test results, a journeyman plumb er with no knowledge of the tests lo he performed, uas asked to calk tno joints. Iloth joints Mere tested under the iden tical procedure as outlined above The values of the joints calked bv the journevman pi umber Mere consistent with similar rage pressures on the other joints tested- Various tests on specimens Mere Mimessed bv building inspectors, a professional engineer, and a retired plumbing inspector. At the end of the test, the joints Mere broken open so that the witnesses could see and verify the iact that the joint was of conventional lead, oakum tvpe Mith a I"ring. The results of the tests show that lead/oakum calked cast iiron pipe joints can be successfully applied to storm drain applications. A breakdown oi me test results show utst the average effec tive pressure to be ithtteod bv a coated pipe without a bead it over 200 psi. that of a coatrd pipe with a bead to tie over jOO psi and that of an uncoaled mpe with a bead to be almost 400 psi. To equate pressure to heieiiL 300 pn is tqual to t static column of water over 92 ft. This, in turn, relates to a suiidmg height of between 50 and 70 stories, oepenoing upon the construction. 0007--SWP--037044 0007-SWP-000118143 f JOHN HANCOCK INSURES SILENCE WITH LEAD Dominating Chicago'! reciting skyline thrse data u the new 1.107 loot tall s o u n d iknniin s l o c k s aiacHiNcnr n o ij c John Hancock Center Building, an archi- Joint plnnnsng on the pan of the `mural trend Miter with iu combination architect, acoustical consultant and of oflirei. retail stores. retlauraata, apart- acouatical contractor produced a rela menta and packing garagei. The build tively eaay solution to the machinery ing it located on North Michigan Ate- room noiae problem. Machinery room nue. Chicago's "Magnificent Mile." walls were made of standard concrete \oiae control ia utal factor in plan block and then an acouatical barrier mas ting the uee of auch a multi-purpose constructed on the inside wall surface*. structure. Two aspects of nniae control The barrier consists of an underlay er at John Hancock required particularly made of furring strips with acoustical tareful planning- containment of noiae wool in between followed br an over- in the Rtachinert rooms located through- laser composrd of a three lexer aratent out the building, and none inauiation of 2l;-lb. per sq ft. sheet lead sand between residential apartment!. wiched between, two Invert of gypsum The machinen roomi house auch po- board. Tests made since completion tential noiae-mikara aa water pump show tbit the tound banter thus con boosiers. elnator motora and other mg- structed has effectively reduced noise cnamcal equipment. During the dap of tranaimtaion to acceptable leveit. fice machine and street noiaee arc usually at high enough letelt to mask any rone s o u n d sMtmtM s it w c c n SOAOTMENTS problem However. in the quiet cl the The movement of the tall John Han riening the noise let cl would hate been cock Building in the brisk winds com uolentiallt disturbing to tenants of the mon to Ibu Lake Michigan area, and building s apartmenu, so sound attenua the narrow width of the building's mut- tion measures were designed into the lions influenced the design of the sound muhiners room construction. barrier svstem used between apartment areas. Interior apartment wells were lon-lru-'-J -if two pieces >.i n. rsu- -urn i-njrd attached to nij, -me n.le- at 5`,-in nirial rfuds The 'Old :ctecn the r-oarci* was tii.rd with acoustical wool and the resulting -l"--in :mcw wails provide a Sound Traiiimu-ton Class* of 15. Building mullions. bow. ever, were only l"s-m. wide so an ac- comincdstion had to be mede to match interior walls to mullions Interior walls were tamed to within JU-in. of (mil lions Then a special-design channel us- t oustmi tea along the muilion. floor, uierhi-ad spandrel, and .nierior wail The latter lias a tiip joint lo compensate tor building movetreni. Cipsum board 's-in- thick was fitted inside the chan nel wuh a lj-in. air space Sheet lead 12',f-lb.i was screwed on either side of the channel and the cnanmel walls Sn- ithed off w ith 12-in. gi psum board. The STC of the stub will matches that of the interior wall. Altogether the sound attenuation its* terns at the John Hancork Center si.- terns an highly successful. To date the building management has received no complaints about n..se 4 * w'iiri t* '*# e t* II.M fllfWfl |Uh|H *f Ml 4J ftd 0007-SWP-037045 3 0007-SWP-0001 ORGANOLEAD PAINT... ASPIRIN FOR SHIPOWNERS' HEADACHE ii <* # *ev't* '< unf '!> 43% ****f #Jf/ ff ! i> umn * Mit*> al Nifi *' *mi jwiiari r**. it jwip a1 *Sfr i Far as long u there hate km chips. fouling bs mweorganisms has been i serious and costjv problem Folding tnuH .hip dr.c. aceant /uel conumption and beets m.intrn*ncc com nue 10 th< drvdock time tnt oil ed in re* mount tbe iravihs ud repainting. h 10-tear research program on ma'in. painia iormuljted is selie the foul ing prsolem has been conducted under 'he sponsorship oi the international Lead Zinc Retearch Organisation, Ine. 1LZR0> itb highlv satisfactory re* soils. The pamti tested contained organs* eaa compounds, lozieanu that can be released from the paint in minute quan tities at a controlled rate. The orranolead compounds present the attachment and grouth of marine organisms for as long as tun yean--and impede aatne for much longer period.. ILZRO Paint Formula 1. a mixture oi cuprous oxide plua tnphenrllead ace tate. produced eve-opening results in teats conducted in traveler it Pearl Katbor ltropicali, Miami Beach (sub tropical). and Long Island (temperate |. Test panels with Formula I coatings re tained a fouling resistance of up to SOTafter 91 months talmost 3 vein) im mersion in Prarl Harbor water--a nor mally bad fouling area. Corresponding tit mt* 9 iTHAfdMtfftM ffS* lit r*r*-4MM MKMwiMf 0mm ttmm*Mf l m$i C* C), mwn NK rvMiMi mmmn $tnr il /> * *f tom#* 4/4 5 Ti Nu*0Mf *--ti mr ***** S/Mtrv* Airtf /CMMf rt#l Bm0H9 i*m$ - /** MU f /**. mt*m v u -t mu i um jmt n. im / IMAHU *,/tf*f* t9tuI Itfftrtflf MmI *v M 11/14 /****f Id 4 '**** Cm' Of |Aanftf 11% *mnm$ r*$itt**t* **1 *1 MlWH If Ufr in vt 4 ?***/ If *#< M*#/ 40r*# Ham M5MMAf V'l/*7Jt-7-Ff fHtf M A H / panel* painted *itb a mixture contain ing cuprous oxide but no orfinoiead eft complete!** fouled after 18 to 21 months. Theie ten reiuils impressed the C. S. Xaw suAeicmU' so that it embarked on its 0*9 n testing program to compare or* canolead pimt formulations with its o*n standard unvl-higb rosin formulation paint. The testing area ms s again Pearl Harbor. The bottoms of oceangoing tugs. saUare ships and submarines uere patch painted > usual)*- 100*150 square feel tit areal uith the r%*o pamt formulations. To date use I1ZR0 organoiead pamt is at free of fouling as the Niw o*n standard anufouiin pamt. 0007-SWF-037046 0007-SWP-i GROWING USE OF ATOMIC ENERGY BUILDS DEMAND FOR LEAD SHIELDING All signs point to burgeoning demand for atomic energy. Alresdv 23 lighter, is easier and cheaper to ship. The need for special cranea or ouuiied nuclear power planti are in operation indoors is minimised. And should tha -he C.5. Another 100 art ackeduled for ahielding involt a a complex mechanism the next decade. Sr the end of the at- such as a reactor refaelling machine, the turv it u anticipated almott 100 hupc use of lead reduces the sice of com- atomic planu will be generating half the ponems around tha shield or of controls eiectricuv required in the United Stattl. pasting through it. The harne-sing of atomic energy has brought nith II the problem ol control* .me Ine powerful ran emitted during me atomie disintegration Basically the problem of protection from there ravt Lead itself is extremely stable and does not become radioaclit e under bomhardment br neutrons An additional fas orable factor in using lrad shielding, therefore, is its reuse or scrap value. it tnr tame a> from x-rays and radium. Lead if a hieldint agent hat plated an historical role in this area amre the dit* rot err oi t-rais in IS93. h ig h oENtrnr a ma j o r p a c t d r PURITY OP COMMERCIAL LEAD When lead, brick or sheet is used for shielding x-rays or gamma ravt. its den sity it all that counts. Tha alight lower* log oi density be alloving or by impuri Uead ofieri tubtiantial advantage* ties it of little consequence. Readilv f c;her tnieldtnt maienala. let low available commercial lead it suitable nt. drniitv and the cate ith which it since it can be obtained in purities of ran Jt cast, extruded, tolled, machined up lo 99 99% whtreet i 99 5% puritv or omeruise formed- combine to make it considered accepted* for this appli one oi the mult efficient of ahielding cation. naieriaii When neiurons ere alto present, such Ueaa't high denim meant a sating ea with a reactor, the purest lead asail- nice unce leea material it needed able j s used in conjunction with an tf- :sr a given shielding requirrintnl. Thera fectiie neutron shield tuch aa boron or - *.o a ueignt rating when the shield a hydrogenous material. The absence ef . in me riupe of a hollow sphere or impurities in the iead is essemiet since :tici. wa.ied ciUnder becaute the shield neutrons can make the impurities radio- oume :a related lo the cube or square scute oi ns thickness while the denutv in- Where lead it used as an unsupported create it onit iinrar. shield in the absence of neutrons, great Economies in space and weight of er hardness and ririditv than can be ob lead ihieida lead lo further, less ooi urns, tained with pure lead are needed for cost siting! A lead shielded transport protection from potential damage. In container, seine smaller and possible such circumstances a 47c antimony-lead -i..v i cxiuT -ic i.r a un i::rnginerea .eia j. >, -eft-, t o,,r. p-vse i.nuinrr vsrtutr-iance in t.nicn c.re >io wiii not suffice -tccjrl -.hen sr..e d- ng a raei-isriKt s j;t' mat erni: uier- :nal xs ucil at nmrra e-ert ,s .. h a ta-r :ne n-a: .-in* ccneraird at the renirr or the ..nil must te tor-dicird jwjt to at oid a tianevroua iheinal build-tip Tv comn-. a'ion eamma -nivid and n-i-.firt thermal eonoueiiun mot be conttrueied in one wav fv using lejd- clad steel--bending oi the lead shield bond'd to a tleel container. OTHER LEAD COMEMATIONS POR IMtCLMM The rapid increase in the use of isotopie traein; for analvsit and mrdscsl diagnosis. both in hoipitalt and factories in recent ears has necessitated thr adap tion ol existing buildings for use for radiograph* or radiolherapv. riving lead snret to the walla sometimes provides ihe neeessarv .hieldint- At oinrr times the bare metal won t suffice and a lead cored plywood is used. Other laminates, combining lead end aluminum, mild steel or plastics ere also available. They all an convenient to handle, self-supporting, hygienic and proled the lead from damage. Where a combined neutron-gamma shield is required, a solid material made up of finch divided lead dispersed in polythene is available. Proportions of components vary to meet different job limitations. This material can be accuratclr machined and individual compo nents can be welded together using Siler rods ef the same material. To meet thr constantly evolving need tor protective shielding, other material* have been experimentally lead loadedAsbestoa cement, building bricks, rub. ber, and concrete have ail been filled with lead shot, powder and oxides. A new form of dense concrete, a combina tion of high alumina cement and galena lead art) has been produced giving densities up to one-half at metallic lead and vet still hav ing the mechnnical prop er! i* of an excellent structural concrete. Radiation shielding is s complex busi ness that leaiea no margin for error. Detailed information on lead shielding materials, lerhniquea and eonaiiucuon are readilv available. Whatever the shielding nred may he. stationary shield, transport container, space shield, mov able local shield, or whatever. Iced may prove to be the lean expensive and most efficient shielding method Available. 5 0007--SWP--037047 0007-SWP-000118146 *r* ,* V .* tvaie'.flwM L* Je*aw.*n fl* A* (iMmfIMf.M<K)M Imu 4 . i |<>wn4}<M ( imI !**' .# iM LEAD ROOF ON CULTURAL CENTER UPSTAGES AIRPORT NOISE 4 ** mm m*m m mw *m *# n immu r -* *m mv 0'vwi Cmm ** mf ** Mn <t r*cr*r * *' t imywfruniK AH of iht dram**oeiatedwuh BaU* wm*fFUsce Colleges new Art and tenor partitions are arranged* The moat feasible location for the Cen* Drama Center isn't necesaanly inside. ter. adjacent to the school*! football The outside has a net* lead roof that stadium where a 1000-car paved parting fan three estemisl rota* First, u pUv lot could be shared. a it happened, wta tne heroic role of the estheticsllv.pless- also directly under a major air corridor m; beautiful patina roof associated with used by jet planes at the nearby Cleve monumental huildmci. It is a stalwart land Hopkins Airport. To keep :h roar because of its renowned duraoilitv. And of planes offstage, the firm vi Bl, here at Berea. Ohio, u acta as a found Berenek l Newman, acouaticel conssih- barrier between the jet noise iron the tntt. recommended . eeund attenuation nearbt airport and the theatres inside system that included bride cavity walls the buildinc. Mil I loo/ of ihcot lead. NEED fQfi NOISE CONTROL The new campus cultural center at Th main theatre in lb. Center bo* t fly loft, the conformation of which five* Baldwin^ ilJace houses two theatres: the building iu lingular appearance. The one jei'iirii 550 designed for regular loft roof slope* almost vertically op from sut* productions, the other a small ex* the ml of the building. Loft and other perimental theatre seating between 250 roof ireu are coiertd with 3-lb. per aq. and 300 depending on how flexible in* fL sheet lead 13/64-in. thick). MTT1N ONIMaPU USCO FOP IMtnuATIDN L'nderlayment for the roof consists of 15-lb. building felt over t wood deck. Tbit undsrlotment i* entered with 3.. in. ngid insulation. 3*-in. plywood, 30lb. building fell. rosin paper. and finallv the sheet lead. Lead u .scored to battent with 16-ot. copper cleat*. Edge* of sheets art joined with loose lacks and AIM with non-hardtniog calking com pound to prevent moisture from entering the joints. Alt told, 16.000 sq. fL of sheet lead ware used oa the Center's roof. And the lead ia playing its role well. It looks strikingly handsome. It will last indef initely. it it keeping the nnise of low. flying jets nut of the theattc. Ettn when planes ate roaring otrrhciid, a stage whisper inside the theatre run be heard without difficulty in the last row-. */* *t Mg krtr I0H M w* >009 0t >10 0000* mrnm "0009" MiMIM 90 109 It0< S3 * I00t*9 MWfMIM T00 0r$m4m ffr Ml ** 91 *** C9t9t *< mg 4 aMMMwf tg*M 4WIWU Mi* MUM MHI IMS 90T9 i# 1ST tf fMf. 6 ------------------------------------------------------------------------------------------------------------------ 0007--SWP--037048 0007-SWP-000118147 STAINED GLASS-- THE ART FORM THAT GOES ON If ant-one ha* ant- doubt* about die pretent utafiiv of the stained (la** mercial buildings. mail store*, school*, and subsequently ua* derated to a plane marlrr. he mai- be surprised to learn and a uide variety of other establish that the manufacture of trained (law is ment* can be loand with stained (law estimated to eveeed $25 million annual- today. It's important to add that the I'- So an old art form that began a* an eiau is being used at a iipnfeul dec architectural adjunct in the Middle Ae, orative item and not just as n stairwell all it, own nh it* perfection by the de window decor. signers of religious wttiiuuan*, u util 'in much with ua. Lead, of course, is svnonvmoui with stained (law. Beside* beuif the carrier Br now. of course, stained flaaa haa for the (lisa itself and the -haper of the broadened ita scope. Priiate home*, com daatgn in question, the load is used in various thicknesses and proportions lo the (lass to give added definition, shape, and depth to the design. The actual process of putting together a stained glass window hit Mined lutlr since the 13th centurt when the win dows of the great European rathedrsis were made. A life sue black and wime "csrtoon" of the design is mad*. The cartoon is cut in pieces, each one retireventing a different piece of stained alas* The glass itself is tut using ihr cartoon at a pattern and t (laser puts the win dow together The (last is put in place and hound with pliable leading called camel FinalIs each leading joint is soldered far strength. The lead came* are normuls H-thaped to accommodate the insertion of the glass. The lead's pliability is a kes factor in its use for stained fiats--at well at its solderabilln and thie beauti ful patina it acquires with time. A spectacular new technique, devel oped at a celtin civ recent dale, involves soldering sculptured 3 lb. sheet lead overlavt to the batie lead catties which ordinarily held the stained glass in piste. These ov-erlavs. formed in relief, ire incised with ctiefullv formed and located slits of serving widths which sllow the light to shine through the richly colored glass during tht osv Tha "halation" of light through first tht glass and then through these slits allows none of the betulv of : ;y glass to be toil. Ac the same time tile sculp tured lead, covered with gold leaf, ful fills the representational function of the window in silhouette- It is at night therefore, when the elan is normally dark, thst the interior light reflects the golden design with startling tntensiiv. Thus the window functions as well s> night at by day. 0007-SWP--037049 7 0007-SWP-000118148 LEAD INDUSTRY EXAMINES ITS ROLE IN ENVIRONMENT The 44th annual meeting f (lit Lead Industries Association in Montreal, eight hour day, 40 hoar week time weighted arertaa exposure.' To tht ob Vpril 6-7, was unique in its depniture jectives of the 05HA program: `'assur from mtnr, old established patterns- Tha ing so far as possible every tvorking focus ol the meeting itself was distinc- man and woman in the nation safe and lnt. Lnlike tinier meetings iHerr the healthful orbing conditions and to pre major concern was research, product serve nur hunsen resources'' Dr. Cole development tnd marketing, m Monlreal case unqualified support. He recom the doraintnt issue " if "lesd in the en> mended in fact that the OSHA air mon iironment." The industry's concern with itoring program be augmented with a its "tone! centred" was expressed in program of blood inalvses as being a menu uses. Richard D. Mushliu speak more sophisticated technique {or deter ing on the statistics-oriented subject mining actual metabolic lend imbalance. o( "World Lead Demand and Supply" Another group ol speaker* britfed the commenlrd. "Envirenmenlal problems members on "auto tmiaaion control de mar well have a drastic effect on the vices ihet work uith leaded fuel." They lead industry in the next decade " addressed themselves to the problem Dr Jerome F Cole, manager of the posed bv the decision of the automotive environmental health department of the industrv to meet federal air cleanliness International Lead r Zinc Organixalion standards hr emploving catalytic con reported on the implicaiione of the verter emission control systems. Since 1970 K'illiami-Sleieer Oceupational lead fouls the eatalvst the decision, in Safetr and Health Act for the lead in- Detroit at lean, is that lead must go. dustn. This far reaching legislation Not so said the pnneiiiti. They reported Sects all industrv. It is esnmaied that on alternative thermal reactor systems compliance on a national scala could that work sucesisfully with lead. serrase operauonal costa of affected in These include different high-temper dustries bv o to 10fc. The OSH A stand ature approaches called thermal react ards for iead are the same ts those set ors. a catslvtie muffler, and several svs. cr.etr.eilv ov me American National terns to trap lead and other particles 5:ancaras Institute '200 ug/m* on an before thev can be emitted into the atmosphere. J. L Kimbeilev. senior environmen tal advisor lor UA. charged "the auto industry has vet to develop one of these catalytic devices which will operate effectivelv on lead-free fuel." William E. Adame, of the Ethrl Carp.. described Danish catalytic svstarn which his company it prosentlv evaluating. This device wan reported by the Danish developer* la be able to re move about 90 per cent of the carbon monoxide and unburned hydrocarbons. 80 per cent of tht nitrogen oxide* and SO par cent of the lend compounds in exhauat gases And these levels are ac complished w ith tods; 's leaded gasoline. This esulyst docs not contain expensive noble metals such as platinum. Both the Du Pont Company and Ethyl Corporation continue to report improvements of systems incorporating thermal reactors which replace conven tional auto exhauat manifolds. These reactors serve as high temperature zones where the noxious gises ere con verted to harmless carbon dioxide and water vapor. Dr. E. N. Cantwell, of E I. Du Pont De Nemours & Company said, "We have developed tripping v sterna which re- 3 * 0007-SWP-037050 0007-SWP-00011  dun the emission of lead by more than T5 per cent that work in conjunction h the thermal reactors." Osborn Fremd tad Roy Sugimoto ol PPG. Inc., reported on a sophisticated particulate trapping system developed hi their company that ceptuteo about 98 per cent ol the lead etnitaioao at a manufacturing coat of only about SU more than praaent day mufflers. Speaking on the subject of health aspens of lead in gasoline. Dr. Cole summarized the position of the Lead Industries Association: "There no health hazard now or foreserabi) from lead in the stnaoaDhpre. "There is no relationship between lead in the air and lead in the blood at concentrations found in major cities. "Aromatics, which will ha added to auto fuels in increased amounts if anything near today's octane levels in lead-free gasoline arc to ha main tained. are suspected of promoting cancer. "The increased aromatics arc likely to increase ere-irriuting photochem ical tmog. "L'nieeded fuels increase sailing L1A OFFICERS FOR 1872-73 S tm. and decrease risibility. "It it strange haw many of those per sons uho art uauilling to accept even the slightest risk to health or welfare are yet ready to advocate crash programs with unknown consequence* to tunedv some imamnary threat In view oi this there is no juatificiiion for further re strictions on tho lead sealant of gaso line." The problem of lead poisoning in children is particularly harrowing. Dr. Cole reported, because both the causes and treatment are known. "L'rbsn re newal," he said, "is an answer to the pediatric lead poisoning problem." He pointed out the long history of the lead association fat efforts to bring about standards of lead use in interior paints. Similarly in the matter of lead poison ing due to lead rebate from glued food and beserage items, femme F. Smith reported that such cases almost invariably involved folk crafted or im ported ceramic utensils. The lead in dustry hu taken a position o{ leader ship in research, surveillance programs and public information in this area. This work is providing btrkground for C5. legislation new* pending. Smith con cluded: "It is gratifying to note that the information used in drawing up the legislation is necessarily drawn from work originally conceived and curied out by L'SPA, LIA and ILZRO. Re are hopeful that the bill can oe modi fied somewhat to provide better control over the imports of ceramics by indi viduals and the manufacture and tale of hobby and art craft pottery intended for food service. R'e arc working with the sponsors of these hills and are optimistic that our input will be utilized." The discharge of social responsibility i. an industry concern. One index of the degree of success with which LI A hu pursued this goal may be found in the comment of Senator Edward Ken nedy to association executive vice presi dent. Phil Robinson, at the conclusion of recent Senate hcartng on lead in punts: "I just want to say that you de serve great credit and the Lead Indus tries Association deserves great credit for the help it hu provided to Congress in this area. Many times industry usociattorvs have not been as cooperative in matters effecting their own industry, have not been nearly u positive at con structive u vour industry hu been, and 1 appreciate it." | 0007--SWP--037051 0007-SWP-000118150 FUME-FREE ELECTRICS CUT IN-PLANT AIR CONTROL COSTS Industrial health experts, managers and union members arrre that plant air qualtlr mutt be effectively controlled to insure employee ssfetv and well-be ing. Such is the consensus that these (coups hate cooperated with various concerned lao bodies in establishing control legislation. Lead acid battery-powered electric lift truck) are the immediate beneficiary of anv move to control in-plant air. Tech nological advances and economics have favored electrics for this use over in ternal combustion < 1C} engine lift trucks for some time. Now-, with empha sis on controlled plant air, the elimina tion of eve and lung irritating exhaust fumes provides a potent neu reason to choose electrics \ 1970 studr reported in Electrical f arid, estimated the emission content of 15 000 gas-pov-rred outdoor vehicles at 1068 tons per dar (tpd) of carbon monevide. 193 tpd of unburned hrdrocarbons. and 5.1 tpd of nitrous oxides. This studv concluded that If carbon monoxide is brougnt under control, the other elements become relatively minor. 5Decide information on carbon mo noxide control has been gathered bv the Micnigsn State Health Department, '-"arrowing -he focus to in plant indus trial vehicles. Irving H Davis. Regional Chief of the Division of Occupational Health, conducted testa that led to the establishment of an allsuable carbon monoxide level in typical enclosed in dustrial plants. Among industries regarded aa topical were auto assembly, appliance manu facturing. and aute parts fabrication. The allot-able CO level for such indus try m Michigan was established at 50 parts per million ippml. This standard vi as subsequently adopted by the Amer ican Conference of Governmental In dustrial Hygienists, and the Federal Oc cupational 5afetv and Hsaith Act vOSHA) of 1970. Mr. Dai in* field investigations turned up interesting data supporting increased eleetnc vehicle use. For one thing, con trary to popular opinion, propane-pow ered equipment may emit as mueh or more CO than gasoiint-fueled equip ment Propane users, believing them selves free of CO harard. may neglect preventive maintenance and find them selves with critical problems. Others have relied on catalytic devices installed on 1C engine unita to improve combus tion and lower etmtsione. Mr. Davit' investigation found that tbs device* were tetallv inoperative on B5ri of lbs vehicles tested bv the Michigan State Health Department. The Michigan evpeiirnrt- concluded: /is an eni/jt.-V monuracturutg plant asmg 6 gas or propene fast trucks. JO,OOO erm al additional icntilttion u re quired to stay aukla the 50 ppm nteximum CO leiel. Hardunrt to preside the additional etr. including roof until, ductirork, jam. wiring, bm not main tenance, would can tl3.000. or S2.I66 per trucl.. Operating com felectncuj and air conditioning/ ueuid add another S1J00 per near, or S230 per truck. These inv riiipsuons prompted Mr. Davis u conclude that electrics were the only logical meant of conspiring with in-plant carbon monoxide regula tions. The regulations similar to those adopted by the Michigan State Health Department have ahto been endorsed br other states Elliott Mason, head of field investigations for the State of Xew Jer sey's Occupational Health Department, concuri with Michigan'* findings. 5adamoto 1-ashits. Chief of Occupational end Radiological Health, State of Ha waii. sulci without reservation that elec tric vehicles are the only realistic an swer to CO control in m-plant materials handling. Regulatory CO levels follow, mi Federal guidelines are in the process of being established in both state*. in recent yean inert nave been several dramatic me asnti mat Illustrate the importance employees attach to navmg clean air en me ie. At London's Heathrow Airport, ground support employees stopped mark is oramania tne need lor action to clear tha air m baggag* tarmmitg men served By iC tractors U $. deck workers pretailed etr conditions and wen mantima union regula tion* tnal permit only eleetnc* te as usee ter Below-oeclt etrgo nandung. An employee comminae et a mater pant manufacturer tor tne automotive in dustry demanded end won a craan program te rapiaaa IC Ion H*ta with okscines tor in-punt use. 0007-SWP--037052 ------ 0007-SWP-000118151 0007--SWP--037053 0007-SWP-000118152 COMPLEX AIR CONDITIONING INSTALLATION CHEAPER WITH LEAD Holfmaa-LaRoche. a leading pharmarrulical and fine chemical raarufac. Hirer, i* currentlv enpaged in an rvlen- wi building proaram 1* house its exitanding scientific naif and meitck laboratories. line such rrceiillr com- pleiad building i Uw rompsnv a 9-iiarr I Research and Quality Conirol Buitdinf i in Nutter. New Jcntr. Ta major requirements for Ibc i* i laboratory building influenced ira de sign and conalructian: exhaust hoods m each laboratun and a continuous supply of conditioned air. i In the Anal design the exhaust hoods "err connected bt ducts running up the tide of the building to fan rooms on the i penthouse. This design preserved inter nal laboratorr space and incidentally, pave the building a distinctive appear ance. To provide the coniinuoua change of i air m laboratorirs the architeeta deemed it necessary to totally enclose laboratory spaces from fluor to slab. The presence oi nun rout pipes, ducts, and electrical conduita in the ceiling area of each laboratory tnoda the erection of a solid partition from floor la slab too costly. Instead, the partition contractor rec ommended the use of a l lb_ 11/CJ-in. thick) sheet lead plenum barrier hung from the softt of the floor slab to the lop of a ceiling-high partition connrue- i i ion brio*. Building architects approved the pro i posal because it had sexaral benefit!. It nould lightly enclose the plenum space, thereby making ihe space an effective air chamber. It uould seal off noil* from the adjacent laboratory. It would be the least expensive and moot cffectir* method in terms of construction, since ihert lead is tassl? cut, fitted, and formed tighllv around penetration*. sheet lead was supplied in rolls mea suring +-ft by 25-lt. long- Each roll was cut mu sheets of required length, snd vs it uaa hung, alita were made to permit the passate of piping. After tb* sheen sere sn place, the tins unre folded back around the piping and sealed to maintain an airtight mem brane Because installation ' as mode after piping v-as already in place, it uoa far easier and cheaper to install the sheet lead than to meuurs, cut and fit a rigid partition in the slob. :2 C*<* Mmih . lnfld>Mf mU r*rt|w, Comasml CMWw (mmlMo i| |yi 4nru ismm CfwrHHs t I iwmn (, %rc. tnd r*r| /iwnw | (oapaap, fTiiflr-- ' i 0007-SWP-037054 l ead l ends A HAND IN RURAL BEAUTIFICATION New YorV'i Staten lilind is ttpical of the mure L'.S. suourban iren wishing lo grow but at the nnt tune insisting that some of the rsesures mat aceompanv urbanisation. like oterhrsd poaer irantmitaion Imra and pole? he eliminated ut minimised. Responsne to (hit preference the uland uulm com pear, Coaaalidated Edison. it tommilted ta U, police of motallint power cable underground; in fact 90'r of all near Utiullsoons are underground. In them direct burial intlallationi lead hat ponitirt advantages. LUD SHEATHED Cant SELECTED EOS THE JOB The 33kv cable selected lor recent in. sulUiioa on Staten (aland hat an alumi num conductor of 757 MCM and ti insulated ilh ethylene propylene rub ber. A lead sheath that i* about 7'64" thick w used te protaet the cable. Eaeh of the cablet measured about 24" in diameter. Accordin| to James A. Shep pard, Jr.. General Manager of Can Edison's Slnlrn Island Division, lead sheathed cable was selected for loo reasons. . reliability and safely. Ctmotl reliability is required of an; direct buried cable and the import rousness of lead gite* the needed protection eten on underwater crossings. Sheppard stated that the lead sheath also psotided a safety factor tn the event of en acciden tal penetration of tha cable. Any metal objrct that would go through the lead sheath and strike the conductor could cause a ground through the lead sheath, protecting the workman using the in truding tool. The periormancs of the new instal lation has been so successful Con Edison now plant tn extend two more feeders fnr another 5 miles. Again, lead ahtathrd cable will be specified for this under ground installation. 0007-SWP-037055 '3 0007-SWP-000118154 INTERESTING ODDS AND ENDS ABOUT LEAD A SUBMARINE ROMP fr all those Waller Atiltv's * lio'r r dreamed of commanding thci/ own ruh marine, there'* a handv*dandv Jead acid hatleri-powered model, called a Pern Cul>marine Shark Hunter, trade and eauing. The tiny aubmarine weigh* in at 1.400 pound*, batlerie* included, and ti l+ft long. Three 12-volt heavy duty lead acid batlanea provide the power. The batten** require about the lane tare a* a nr or boat battery. They can be rrcharged right in the Cubmanne at dock or manna facilities. Vie* for the boat include business. retearch. aa v>cH aa piewire. LEAD PLAYS A JAMES BOND ROLE Modern eaplonage baa became *o vophisticaled that "apie*" are now wing x-ray* to read the combination* on safe* and eeurity desks. The Government of Great Britain haa found a way to fo9 the villain*. Lead-covered tumbler* arc being tobetituted for tegular one* in all high eccurtty area*. Lead, of couree. it imperviou* to the i-ray* end mekrt the aale* "crack-proof". The problem it wrioiu enough end the tolution ao effective that SI million it boing tpcol on the conversion of the tumbler*. VO la thit novel epplicetien, a iced weight ecu aa the camera shutter actuator. Anchor .Alloy*. Inc- worked with the engineers of Simpro Corporation of America to develop a ipccial lead weight for the pocket site 5impro-X camera. The tiny lead actuator weight only 24 gram* and it produced by a low cost catting process. The Simpro-X it small and simplified; easily- slip* on to ony tile 126 film cartridge rather than the cartridge into the cemera. It will Uka an a-cube flash and color pictures. INTERNATIONAL SYMPOSIUM ON LEAD TO MEET IN AMSTERDAM The Unite* States Eiwnrenmantai Protection Agency and The rowumion of the European communnioa are lOrntiy tsonaonng an intomauonal ryeisoaium on tno environ* mental heelHi aspens ot laoo in Octoeur or Ms year. Tno Symposium anil Be hold In Amatoroam. Oetooer ana through tno 4th. lit oofoctive a to siammo eurrant data on omnronmontai Mad ana diteuta now mat information can oe usoo to mcraaao mo protection or man ana ms suMronmant Tna Symooaium program will eovar in aatsd me SOSOration ana metaoolitm ol anvironinantal Mao at man: the evecemcai enacts of leaa ana moii rou m eetaeushing load environmental ana anaiyueal mooieoa ana mannering of environmental leas. Scienutc papa's mlatod to sganaa topics nave boon in* vitod. Papers can M suPmmaa m English. French or German ana must run no longer man X mmutaa m oral preeemetien. Admission to ms Symposium is (too. Ail eorroaponaonco regarding mo Symposium ahouia 0* sent to: Direction Protection Santlwra Commlsiron Poo Cammunmitsa EuropOormot it, rut Aldnnpon Lusompouig (Grana-Ouanpi 14 0007-SWP-037056 0007-SWP-000118155 T'he Lead Induune* Allocution. Inc. a nonprofit sreaniiiuon. it a Sf \ ora membership corporal ion. ll ii the trade ataocjaiion for the lead mduttre, iih menibrnhip including both producer! and user* of lead. The Atoeciatien nenhrr produce* nor telb lead, but rotlecU and ditirihuir* informaiion relame to the uw) ut litis nwtal Tire major arm Mice conducted be the Aaaociation on behalf ol the lead indu*trv are promotional in nature. Thev in clude technical ten ice. public relation! and publicitt, motion picture*, techntral and educational publication* and ttati*. lital report*. A" euenin* itbrart of information anouc lead 'tor liuine "i itpicai inerj. lure tee rear cot rr of this mue i it hou-eu y I'e Itsetiation'r \e )erl> headouarier>. and daia pertaining 10 lead ana lead product* are atailnble uintout charfe. MCMHM Ob TM UU INDUSTRIES ASSOCIATION. INC autod lead too. Allied SmettWf Carp. Ckreapo. III. ON] Mtmuttao, dtra. 50210 Alpha Matata, Inc. Jtrtty Otj. HJ. 07JO4 Ante* laa< 4 &ac 0Milan Amarioan Metal CMmaa. hie. Htw York. N.r. toon American Smeltlny a Bellamy Co l wew rer*. N.r. tom Aaatca Meateana. IA Maaico I. D-b. The a. A Aerl Cempeey Uad PradiMM OhrMon Channel/, 0*w *92(2 Broken HW Aaaaeiatad Smaller* brpptntaiy lid. Metboume C.l. Avsrrtfta (Appal: C. Tennant tana A Co.) N# yon. n.r. lOOir CAD Banana* Ptewaa ENr* Cotpondm CamOrlf< (malUnf Cam#any biymowrh Meolmp. ba. Ifalt Camondpe, Man. 02fJt Comlnaa Atnancan incorporated Spotana. bait. 02101 Comma ltd. Vancouver i. i.C. Canada Day Mum, Inc. menace, /Sana 13173 Datce-Ramy Dletalon General Molar* Corporaiwn AnCarton, Indiana *80?* Diemen Load C*. Summit, tfftno'l B0301 Diaia InOuttrlet Inc. Ann. r**f*7jjjr E. I du boat do No io c h iio B Co. Wiumngiaa, Oalaoar* IBOM Oraaaae Mineral* Dhtml** Dietaer InaufUtet. Inc. rtouifon, Tana 77005 laploblciiar tnduairia#. lac. Cnarnaati, QAta *1202 ESS Inaarporated tthyl Caipaeanan bW/aOalsAra. ba. IPtOf Richmond. Vi/puu# 222?r r*411*1*4 Helen OhrMon American imeiany a nallaiay Ca. war* ran. N.r. loom Aaron barer y lain c*. Omaha. Near**** Mf02 Cardlnae Maui Company Oaatid dattafy Cary. Inc* Bo o n lac. Hamnand laid OroOvct*. Inc. Maoia MUdtif Company MamealilM laid Ca. at Waoautl Mouolon Cttoadeol Ca. Idaroda Mutiny Corpotodan tnduoutal BmatUwf Company l ta. tanary Campowy Load PtaducM Catapany. tne. Macoraptf laid Company Natdt Chamicat Company M. tndualrlaa. Ida. Haraada tele* Catpanllon ltd. Oalay Campaay, UR. Oiaru lead Company Penarrpya (Apenl: NC Tredlnp Ca, Inc.) Ouamatca, lac. Pavara SawlUnp B RaAniny Cap l Jaa Minaraia Caeparatian yoiuylkM MalataCaep. TanaM Ca. at Canada ltd. TattnwB Ctrpanllaa (Ayaal: AtanMIca. lac.) VtcMry White Metal Co. hymen Ylener 1 tana ViHeaa Lead OfMuel* catapany WMHdUadPradunaea. Cmcapo, nnnsri 60132 Aeeduty. ba 10403 MitaMloa, mo. 92201 SL bout. Mumatcita si? ia Kommontf, Inottin *<329 araineo. tuna 11123 5*n brineueo, Cain. 1*101 bittanwrpn, ba. 15222 m* ram, M.v. 12022 Detroit. Michryan 41234 S*o*ie, IHtnott 00071 Moulton. Tuaa 7700? cmcapo, Hanoi* 10023 Cbicapd //imor* 10001 Mew re**, w.y. roooo Toremo t, Oman*. Canada Ctovatand. Ohio <Mt2S Sureefwelar, Me. 43600 75 ban* 13. franc* lv*w Ver*. N V. 10022 C.ry of Mdirilry, Coat. 017*7 Daft**. Toni 79222 waar rar*. M.V. ?i?7 flaton Rouf, La 70007 Uiuiistugt, OrUM/to, Canada AlereVpr*,MV. 70022 Weir yar*. M.V. IIIOM CfpvoMnd. Ohm 4t27 Richmond. Viryrnii 23205 u,iwtu*tt. Wit. 51204 Charted#, MC. 21200 G rot c mar o c or a o h c b p h a s e WRITE IN MUIJtER mow top OP AOOMSS OO ATTACH MO UIIL tstma NMA ADO ME TO TOU* MAIUNO UtT ---------------------- V-------------------------- ATTACH MAILING LABEL HERE ________A_________ TOST PLEASE CHECK INTEREST 3 PlPAHKO Q MuaNft A ftatUT G0)mRP*4 Utfiattoft GCavwWKK DO lAOf*. Clip ItaNUtfM 0007-SWP-037057 15 0007-SWP-000118156 LMfialMit* lifl yiii IhMi luri i(mm bamM Wb h * ftlotim --n MCHITECTUR/U. L*as lU* #* M# iitlMHf Mlt*tM MM* M M cimwrtitav fmm+mrn* m mmm w m nUMMW c h e mk m. cowrnwcnw* * BATTERIES A frimw m ft* ImMmM W*t CfRAMICS M iMM glUM tar # paltan OtmcttMt atiniw i--riaHm __ sag^gga?? MnvvitMhoM mot CARLE SHEATHING GENERAL ultallA tomnmiimMl fichU--Ato0lmllmkHMMmmmttoaWrn UN m taaifeM Um *f M ta fct mmAA RNMI # M( hM 4MMM WW* ura; 0007--SWP--037058 0007-SWP-000118157