Document dNkvj0rrEkxq0GO4R0B0V4QQ

3 i i t- Lead Industries Association, Inc.-- m MeOWon Avenue Nee Yo<t. N. V. 10017 Tetaaftone: (tit) 070-0000 >fcr 7, 1973 TO: AIL KDCBXW Cf UAL UGXBTRUS ASSOCIATION, HR. Oeatlcoea: Attac&ed are copies of tbo advertlseaaata vhleh vo vi VI be naming for Lead Industrie* Association, Ice. la tbo trodo prom during the flrot six Booths til* poor. They Include Vnluas 17/ lia&era 1 through 7 of our Lead Revsletter. At tbo bottoa of oocb adfertiseBent tbore 1* oa Indication ** to vbero the adeertisosent will appear. Tbo lost two adfartlaesmato, os you vlll Bote, ore Intended for end ore appearing In Collate engineering publicotlon*. As oa ladlcotloa of the success vo ore boring with tbo odfertlseaeats, pleoso note tie ottoched letter froo Uefceraaa-Hsrrison, Inc./ our Adferfcleing Agency, vhleh ve belief* presents as cxtrooely Interesting oad favorable study of our Aevsletter, Vol. 17, lo. 3, which recently oppoorod la MACHUZ DtSIQT. As always, any suggestions, loads, new advortlslag or public relations noteriol will bo aost wolcoae. Sincerely ycurs, lewis X. (k m Assistant Secretory and Director of Crumlcotlono IXQndd. tad*. v o&aaaaSL ma iorv J- P P S WPfi I P P i P i W W P ^ ^ 1| Hr. Levis I. 0age Director of Caamualcetlon* Lssd Industries A Lino Institute 29C Hsdlsan Avenus m lark, 1. r. xoaiT Dsnr Imi Ve have Just received the Eterch Report 00 the Iterch 8 issue of MACKIXX DESKS la vhlch our first LIA ad for this year appeared. X have the ccsplsts report for jour reviev, but I thought It vould bs tlaaly to sad jou s fast susaary. Basically tbs report Is a highly fSTarsbls 00s. First, It demonstrates that our Vsvsletter; "long copy" approach Is paying off. Second, our rsry attractive cost ratios cooflra that ve ars getting LIA high yield per dollar spent la ad vertising. Of the 91 *ds la the Issue, our ad rankedt I By ntaber of reader* By coat per reader 30 16 i Voted jt Associated 39 28 $ Read Moet 20 COST RATIOS* '.I, Voted 150 Associated 130 Read Moet 260 These figures aeaa that our ad Is better than average la nusher of "Voted" readers per dollar, 30f better than average la "Associated", aad l6o better than average la "Read Noet". ** Figures la parenthesis are those of mstals association vho ran la this issue a tvo-page, four-color, bleed ad. On any level of analysis or comparison, I think you vlll agree ve did very veil Indeed. FVB;*jr , k't.v'i.* * V- KKKK MAJk * ,r IS 349^ LIA14946 V* ' L 4; !i !,i i i i ;j j The role of the Industrie! hygienist in Im plementing Federal health regulations Is a critical one. Knowledge of how lead and lead products can be applied may prove useful in helping you solve plant noise problems. Noise control Lead, either alone or In combination with other materials, has for many years bean tad as a sound barrier wherever the roost exacting noise standards prevailed. This experience now is being widely applied in industry. Many of the noise problems in industry involve both auund and vibration. Though related phenomena, sound is air borne. vibration transmitted through s solid Lewd has a solution for both problems as demonstrated in these case histories. Airborne noise Several materials are available for the at tenuation of airtoroe noise. Thin sheet lead, leaded plastic chert, and composite lend foam sandwiches, make idea! barriers be cause of their inherent limpness and den sity. The simplest way to reduce the noise generated by a piece of machinery is to control the noise at the source. This k how engineers reduced the penk noise level of a gas turbine generator by 10 db in Che 20 to 10,000 Hz hand. The generator's air in take. which gulped in a howling 11,000 cubic feet every minute at full power, was the worst source of noise. Lewd loaded sheet vinyl was used to solve the problem. The material cut 10 db from the peak noise level of the unit (see graph). In many cases it k not possible to enclose the complete machine because it must be accessible to the operator. In such instances, it may be possible to shroud the gears and other noise producing elements and still have the work station accessible. If thk k not possible, Che entire unit can be kolatad in a "room" or "tent" made from leaded vinyl plastic curtains If thk type of aohs* tion k necessary don't forge* to "sound proof" the machine operator by supplying a set of hearing guards, ear muffs, plugs or other hearing protectors. s k bu c w o * secant Vibratory noise Many types of machinery such as printing presses, air conditioners and compressora. where a heavy rrcij*rocsUnf load k present, create vibrations (hat can radiate to other areas of a building Various types of lead anti-vibration pads have been used success fully to solve thk kind of noise problem. The pads are usually made up of an rove lope of 8-lb.. U-ta thick lead enclosing one or two layers of *i-in~ thick asbestos roll fire felt or synthetic rubber. Some 150 lead asbestos pads were used to tame the vibra tion of a newspaper prvws installed In a metropolitan New York area. The machine feet rest on the pads that are retained within a box to prevent movement which would kwrt circuit the p*k Lead Industries Association has on Ha staff two qualified industrial hygienkta who can help you with problems similar to Chose described here. Write to Lead Industries Association, Inc.. 292 Madison Avoces. New York, N Y. 10017. Lsstf toSwfttfWf JUsocisUift. In c taOtwtrtsI No<M a>attw It ft W **C*tCA* INDUtTHUU. NT6<(NC ASSOC JOuSHSi ASNatSU \V. N 3497.02 LIA14947 - '5SC l' f f *' h' - * i * : r r_ " i I. f fV f Industrial plant management U directly responsible for seeing that noIse Ifvffa r mv ( OSHA regulations. In rorn of application*, lend pnrtl* tion*, ahrrt lead and oth*r lead prod* orts are providing successful answers to thk problem. How to meet the 90 db noise limit with lead Praam, automatic riwtrti, icn* machines, lathem, many other typee of ma.'hiiM, and a variety of swrmhly line opcntxtt common to mrtalvoriiRt run at ootar Inrla poten tially injurious to hearing Lead and Irad composites fill all the prerequi sites of a maximum efficiency aound barrier: density, limpnm and im permeability. And they are normally unaffected by coolants, cutting oils, drawing compounds and other indus trial materials Lead s "workability" snd ease of Installation nrcke H a natural for endosurrs that demand complex configurations. Complete mdoMirea, partial enclosures, cur tain walla, lead loaded epoxies or vinyl sheets, laminates, shrouds, anti-vibration pads--all are used to reduce nolae to acceptable levels. their sound attenuation effectiveness. Many of these enclosure* are made up of panels consisting of sheet lead and acoustical foam combinations, some of which contain more than one sheet of lead separated by layers of foam to enhance aound attenua tion properties over that of an equal mm of lead in a aingle sheet. One typical aound modular ryrUta consists of 1 Vi" thick leed/foam ma terial; an extruded aluminum fram ing system, and fist aluminum sheets. In gagrs ranging from .049" tn .062", New foam/Lead machinery enclosures Sound insulated machinery andaeurt* are used to control noise from industrial equipment that originally waa conaidered either too large to equip with adequate aound control, or rise had already been Installed without built-in noise control. An Incree&ing number of manufac turer* of such machinery enclosures are taking advantage of the sound barrier properties of lead to insure N-m g ** mi>x tf rwSr ***</ MftWS* ***-# > > n for the exterior face of the pans! The lead acoustical foam material consists of two shert load septa, each weighing *4 lbs. paf (.0079* thick), that are sandwiched in acoustical foam. Selected because It meets UL94 regulations for fire retardancy. the acoustical foam wQl not "dust out" or delaminate from the dwt lead like tome other materials. la addition, the Issd/aaoustioal foam tends to be self-healing should work* men have to drill boles in the panel, for electrical conduit The ns* terial encircle* the cable and tends to seal potential openings through which sound could tnwi Designed to meet Occupational Safety and Health Act standards, the machinery enclosures can achiev reductions of betaws SS to 60 deo* Ibels (db), depending on how care fully the enclosure is Installed and die original nolee levels encountered. The enclosures ran be nufnm finfit to endear any type of machinery regardless of six* and configuration, rods can be designed into the panel endowre* to permit stock Input and output and. If needed, a specially designed door can be installed to per mit operators to enter the era Insure. Standard-six* panels are also avail able to facilitate do-ft-yoursdf noise control machinery enclosures. The panrla, available bi standard fif, T t S' snd 4` x 4* sixes, are supplied with the aluminum extrusion fram ing to permit construction of the aides and roofs of machinery en closure*. For further information and tech nical assistance, write Lead Indus trie* Association, Inc., 292 Madison Avenue. Nrw York. N. Y. 10017. M* m P4CiWy **<-- #ww* 1 MiMtrfe. IwcWlK kv. ..J Mw*trUI N.M Pr^w. H71 p..rU,l.irCroT I MIM.MI4 ,.-1/ . ; . iv ...V . e*SP i i. l h 6 r r K* I" % N 3497.03 ' ' ' -: ' " V~' ^ HW.1Mir.ir.ffi i-nffirt-iii m LIA14948 L '" W W S W *w *!i*!Ji,w iW i v .a iu w iP q y w m n n p i' Mara and mors buyer* of plant equipment are specifying that the have been used w rrrasfulljr to solve this type at notes problem. Tbsss equipment meet Occupational Safety are usually made up of an envelops and Health Act (OSHA) standard* of *~lk, H-in. thick Wad, snefosfag from the uutoK. 7b meet this require*, on* or two layer* of %-ln. thick as ment many design ergirmrs and bestos roll fir* felt or single dust acoustical specialist* or* turning to of polychioropren* rubber. Some ISO Wad. Lead provides maximum eAci* Wad asbestos pads were used to toms racy as a sound barrier because at the vibration of a newspaper press its density, limpness, and impsrtasability. recently installed in the metropolitan New York area. The msrhlrq f**g The noise problem many designer* rest on the pads and are retained have to combat is in the form at both sound and vibration. While within a box to prevent movorw^ without short * circuiting the V*w C**>*-*<-^* WM KvKl (M wnw mms tfnwnr Mm p ims is airborne; vibration k transmitted through a solid. Both are related. Abo. sound can cause vibration ant vice vena. Lead has s solution for both problems as demoewtrsted in these case hktariaai vibration pads. Suppressing airborne noise Several materials ore available to the machinery enclosures can achieve reductions af between 35 to 60 dec* IbeU (db). depending on hoar care fully the enclosure k irwtafled the original noise levels encountered. The enclosure* can be custom-built ' O Suppressing vibratory noise i the designer for the attenuation of airborne noise: thin sheet Wad. Wad ed plastic sheet, and composite Wad foam sandwiches. The amplest way to enclose any type of machinery regardless of size and configuration. Ports can be designed into the pond enclosure* to permit stock Input and Many type* at machinery such as to reduce the noise generated by a output and, if needed, a specially printing presses, air conditioner*, piece of machinery k to enclose it designed door can be Installed to per compressor*, and the like, where a One typical sound enclosure sys mit operator* to enter the enclosure. heavy reciprocating load k present, tem consists of lV'j" thick Wod/faam Standard-size panels are also avail create vibrations that, if not properly material; an extruded aluminum able to facilitate do-it-yourself noise suppressed, will radiate toother arras framing system; and fiat aluminum control machinery enclosures. Tbs of s building. Lead-asbestos or lead- sheets, in gages ranging from .049* panel*, available in standard 2x4*, polychloroprene anti-vibration pads to .062". for the exterior face of the 2* x 8* and 4' x 4* sizes, are supplied panel. The Wad acoustical foam ma with the aluminum extrusion fraxs- terial consists of two sheet Wad septa, each weighing Vt lbs. pat (.0078* thick). that are sandwiched in acous ing to permit construction of tha idea and roofs of machinery en closures. tical foam. Selected because it meets In many coses it k not possible to UL-94 regulations for fire retard- fnckse the complete be ancy, the acoustical foam sail not cause H must be accessible to the "dust out** or delaminate from the operator. Here, It may be possible sheet Wad like same other material. to shroud the goar* and other notes In addition, the Wad/acousticsJ foam producing elements and still have the tends to be self-healing should work work station accessible. If this k not men have to drill hoWs in the panel, poasibW, the entire unit can be iso eg., tor electrical conduit The ma lated In a "room** or "tent" mad* terial encircWa the cable and tends from Waded vinyl plastic eurtaim. to seal potential openings through For further information and tech which sound could travel. nical assistance, write Lead Indtte- Designed to meet Occupational tries Association, Inc., 292 Madison Safety and Health Act standards. Avenue, New York, N, Y10017. IssO lnSw*trW AMscWttsn. tec. Iwdwtrtst No*** Pis***** 1171 tesofiw " ma c Hint 0C**0N AS No. ? ' * I N 3497.04 ........m ' ' .' ; ' ' '' LlMA9A9 Q : i j j New building material-- Lead clad steel A nrw composite, lead dad atoet. ha* rrcrnUy brrn developed. Bfcauar it axnhinM the durability of lead with thr strength of steel, U haa potential of wide architectural application, ft ha* already been uprcified by British architect*. Thia office building of the National Life Association of Austra lasia Ltd_ London, provide* an ex ample. In thia application, thr lead clad steel provide* lead corrosion resistance, aesthetic appeal and sound barrier properties a* weU aa thr strength of steel Lewd dad steel Is produced by pressure bonding lead to steel which has been pre-costed with lead-tin alloy. In extensive test program*, the lead dd steel was subjected to mechanical and thermal stresses without bond failure. Lead dad steel is currently bring produced in shed form in the United Kingdom. Both single lone side) and double (both aidtv) cladding are available. Tbe standard coating for building appli cation* ranges from .020-inch to .030inch thickneas of lead bonded to 20 gage sled. to provide a continuous lead surface. The use of lead capping pieces also helps to waterproof the fastener and retain the pleasing appearance of lead throughout With certain limitations, lead burning and soldering can be per formed on lead dad steel almost as easily as when using sheet lead. Weld ing the steel section of the composite material will destroy the lead coating in the heat affected zone of the weld and therefore mjuire* special care. However, stud and projection weld ing can be used to produce satisfac tory joints; similarly mechanical fasteners can be attached by these method* without detriment to the lead coating. Building applications Application* of lewd dad cted ta elode fascia* and wall covering. Dasign applications Include roof cover ing*. ventilating ducts and related equipmmt, gutters, rainwater pipes fdownspouts) and parapet covering*. Formerly it was often Impractical to use lead far such applications bacause the lead normally requires structural support which the steal now supplies. For additional information write to Lead Industries Association, Inc, 292 Madison Avenue, New York. NY. 10017. Installation data Lead cUd steel can be bent through 180* without loss of adhesion and. although some thinning of the lead occurs where it form* the outer sur face of the bmd. the local reduction in thickness is normally acceptable. Most types of fasteners can be used to mechanically join lead coated steel. When decorative architectural panels are secured to wood battens or other structural members, lead rapping pieces can be Incorporated The f*ioa o* tbs *oof of this sn-sttxy tKn*d<ng n lhe form of *n open screen comprised of ?00 panels of k**d clad steel The panels are fabricated from 20 $*0 steel with a lead coating of about t Y pounds par sq ft ( 0234* thick) on each side. Ue4 tft**etriet UiecWey tut. Arc*<tocti**l Sro***^ JtTJ a**Mrt*a tai A*CH(TtCTUM. SCCOftO end CONST*UCTtON sett*** M H*. SS14A \ "Tif! flBjWmT'Mf-tffi fihiriTi - N 3497.05  '1 ''. _r ' .'.- '`'-v ' ........r~ _ .< . . " . - f. I .- ',. 'r.\ ' '"-- --'---: . ,: -- -r --/-- --- - -- * LIA14950 r-Tr* i iiiihTrTT 'r~~ Vri** ri IffUni nrifrftnV'if'frli T ':iiti''"i'~'i'ff`Tif fl'~ i^frrn^aniilBi^iTitgllwriri w m, >. y v w ig pp iI mi.||j| J ^ i i ! p a: - r.% . rx ii!|jB P g ii p.!|j| la ^ iew pi ^ i -WiP.fUlWIi i p p il. f H P U P f j^ J ip jiljl!|iB|l^ . f !8BB^^ 'If-HJ [.jB j>Wv DMlor|PMrC9Mii Problem: How to locate a huge pouter generating plant in the midst of a "bedroom** community without generating noise problems as wetL 1 Solution: Es (ensue use of lead sound barriers. \ 4 i r Induction draft fang used In utility air pollution control arr powerful noiar makers. But today's technology offers an inmr in prefabricated, thermally insulated panda designed to provide noise reduction of up to 52 dreibrts. The pnnel la of layered construction. Five materials are used to produce the new thermal-acousth cal panel: an exterior sheet of cor* rugsled or box rib galvanized steel or aluminum; a layer of mineral wool insulation; single or double layers of sheet lead sandwiched brtween ooa or more additional layers of mineral wool insulation; a layer of aluminum foil; and a wire mrah retainer on the sound-source side of the panel. The bex-rib panel* are commercially available in 40" widths; corrugated panels in 32" widths. There la a wide variety of lead sheet, lead vinyls and composite* now at work helping in dustry comply with regulatory codes on noise. Make sure your CSI file on sound Insulation Is complete. Write to Lead Industries Association, Inc., 292 Madison Avenue, New York, N, Y. 10017, i laaS t*Swtr>* MtaclaUa*. tC. *j-cni1n<tt/rat erofrtm 1ST} n aacMiTcctuast *cco*o c o n s t * u c t io h ircctrtc* N* S4*SA m&m: iwpvapwii pp?1 r * N 3497.06 f p luunaiiLiuiaKWii PIP! LJAI4951 Fume-Free Electrics Improve Plant Air Quality rum sir quality murt be effectively coe- trolled to ineure employee s*My and vdl brine Recent studies show that the use el battery powered vehicle* can be a definite help. One auch efudy on carbon monoiklroootrol hae been conducted by the Mkhiftt State Health Department Narrowing the torus to in-plant industrial vehicle*. Irvine H. Dovia, Rfporul Chief of the Division of Occupational Health, conducted testa that bd to the establishment of an allowable o Hx m monoxide level in typical enclosed industrial plants Among industries retarded as typical were auto assembly, appliance mamifactjsrin*, and auto parts fabrication. The allow able CO level for such Industries in Mahican was established at 50 parts per million <ppm). This standard was subse quently adopted by the American Confer ence of Governmental Industries Hygien ists, and the Federal Occupational Safety and Health Act < OSH A ). of 1970. Mr Davis* field investigations turned up interest in* data supporting increased elec tric vehicle use For one thin*, contrary to popular opinion, propane-powered equip ment may emit as much or more CO than gasoline-furled equipment Propane user*, brlirvin* themselves free of CO hazard, may neglect preventive maintenance and find themselves with critical problems. Others have relied on catalytic devices in stalled on IC en*ine units to improve com bustion and lower emissions Mr. Davis* Investigation found that the devices were totally inoperative on 85% of the vehicles StuSy poMti | wMwy as aeaK Si*'* # S WCtr< v*<Wl tested by the Michigan State Health De* partnwnt. The Michigan experience concluded: la an enclosed manufarturin* plant using I gaa or propane lift trucks 20.000 cfm of additional ventilation ia required to stay within the 50 ppm maximum CO level. Hardware to provide the additional air. h* eluding roof units, ductwork, fans, wiring, but not maintenance, would coot $15,000, or $2,166 per truck. Operating costs (elec tricity and sir conditioning) would add another $1,300 per year, or $220 per truck. Lewd Industries Association has on Hi staff two qualified industrial hygienists who can help you with problems similar to Huso described here. Write to Lead Industries Association, 292 Madison Avenue, New York. N Y. 10017. LaaS tfttfsatriaa liiatrtSw. Hw. lASuatriat Naif Ptoffsm Itq <kpp--rt* tft AMtatCA* IMOUSTftiAl MTOtWC ASSOC ebiia-willirtSif'Sai^ N 3497.07 -r-y'rp- ; v;r-.. ,.,,... ...^ .. . LIAI4952 '" '.': Draft Fan Noise Hushed Induction draft fans widely u mI fat air pollution control are powerful J DoUr tnikm. But today4! technol ogy offer* an effective answer to the problem: prefabricated, thermally insulated panels drwigned to provide bome reduction of up to &2 ikibcU. TTmb w panels are usually of wd wkh design. They employ five mate j rials to produce thermal-acoustical ! efficiency: aa exterior aheei of corru gated or boi-rib galvanized start or y aluminum; a layer of mineral wool ? insulation; single or double layers of duet lead sandwiched between one or more additions) Uyera of mineral wool insulation; a layer of aluraimaa tod; and a wire mesh retainer on the sound-sourer side of the panel. The boi-rib panels are commercially available in 40* widths; corrugated panels in ST widths. crease the sound of the turbines to acceptable levels, a new composite acoustical building eras created. Aware of similar noise levels en countered at otfxr compressor sta tions built adjacent to residential areas, the utilities involved drew up rigid specifications for the newr com for noise barrier quality, received a Sound TVansmiaaion Class <STC) rating In mesa of 40 deobets. pressor stations. The requirements 1 called for noise controls to be buQt Compressor Noise into the turbine equipment as well Made Acceptable a* the structures that would house them. J ; 9 Turbine compressors are another source of high level noise that have been successfully unified with Iced panel enclosure*. In a recent instance, two utilities were determined to find a way of de creasing the 115 decibel (<fb) sound of the turbines to an acceptable level that would not disturb residents of the communities where the gas com pressor stations were to be con structed. Rather than be concerned with the noise problems after the two com pressor stations were built, the two companies Joined forces to solve them aa the stations were being de signed. To make it praalble to de The design that was finally approved for use in the two installations ineluded the following components and materials: Inside face -- 2 lbs. pet (XKJir thick) sheet lead bonded to the back aideof 24 gage (.0239* thick) V-rfb galvanised steel dveei. Center core -- one 4* and one 3* thick low density glass fiber Isyer with vinyl backing. Exterior face -- 26 gage (.0179* thick) galvanized steel sheet with baked enamel finish. The building panel girts (stiffen ers) were cold roiled from steel In sertions. The building panel, when tested Many other types of industrial machine* including prrasta. auto matic riveters, screw machines and lathes have had their noise levels re duced with lead. There is a wid* variety of lead iheet, lewd vinyls and composites now at work helping in dustry comply with regulatory codes on noise. For further information and technical assistance, write Lead Industries Association. Inc, 292 Madison Ave^ New York, N.Y. loan. Us* MlgwtortM UwWIW. Ira. tsStotrUi Motto Si ugwarn lt?J Zwpsurtag Ml FACT0SY UM-MN -4ffiirHr*nr N 3497.08 | 4 lM4 U t Mi. V I HJi.. U C**. TtCH. V*IC. C<X0**00 *C*OQL OT ftMNCt -pfr| n Xv |. VI ft " ifJist; t; N 3497.09 T N 3497.1