Document O3g5X9YwpKrJmojyN40rVBja1

X Xt"- A^i^-yO PLAINTIFF'S EXHIBIT TO 3 Ail -Systems Inrjnears OS: Ail District Mraiagsvs Ail Gypsum Hunt Managers L* i-bngpld - Ardrpre 0= E iiartin - Ardmore 0 G* Sbatilsworih - PaoXi tl* oi Powers - Faoli E, Br. Hollingsworth PadA GP-1032 SUCJSCTt POy'KU IRAbSKXSSXOh OR Til IS: Personal References ~ Systems Unginror tlanr.al Blj fl. S* Abbey sin Under date of October 31, Visitor Stoll sent out a bulletin be all sslostam under trie; subject "Sound Transmission Data" and enclosed sics pages of data* giving tinsound trie:scission characteristics of many assembl-ies* These uere to have teem put in Chapter 1 of the Gypsum Product ilanual* Each of the Systems Engineers ought to have a copy of this in his personal copy of his Systems Engiitanr Manual in the b&ck under Section IK Personal References* For those of yen who may not be familiar with it or not fcu-sve a copy of it, at tached hereto is a copy. There are two or three single technical bulletins on Sound Transmission of Building Assemblies as well as Srxuid Aosorv/dca char.usher-* iatica of Building Materials which you ought to baco-se aeqraintm.i with* Two bulletins distributsd by the Acoustical Kaheriris Association (ABA) ara included in your Gypsum Products Manual in the Chapter X with referer.es to the material on the six pages, the following comms-nte should be helpful: 1* iters the trade name Bsstxell Qypsuvji Wallboarti end Eesteall Eirsstep have boon used, pleas?: bear in mind the 11sting is a summary of data available to Beaten!! based not ozB.y on teats mhsre Best-rail was the sponsor and Bestedl rrterisls vrere used but also on Bureau c?f Sterdaro industry tests, testa sponsored by the Gypsum Association, by isetel framing nornfmeterersy and by other Vis may not be able to give you a copy of an official test report,, However, the official tost reports for both sound transmission and sound absorption are very brief; generally being too pages to throe at most ami tevolre 'a dacevip- lion of the assembly (briefly sisisnsrisad in This table) a graph, and a chert of the obseriraliony (also sbo:m in the list)* Or: each assembly notice- a test number has been assigned,, the poor* the tee: was mad-o indicated* nnd at The evil mrr Vireo figsireo 5sq?l Aired later. The fast .xrbors prefaced by the let bars IS refer to a Bureau of Standards test are by the lattern TE, Til or 'it to tests made at Rivcrbanks Laboratories in Genova, Hfiuvl.3./ SGP 0003555 2 - P.iverbanks vg3 formerly an independent orgenlssfeieu, but it is ncr:-? part of the Armour Research Institute of Chicago.. Xn-- eidontclly, the fxrct numbers following TR are the joai* of the test. Where the designation under the coins he&fyd Teat Number is G-K, tests were ts.de at Geiger and Hera, a relative ly ia&'ti sound testing laboratory located in Ann Arbor i-iichigacu In dater-rlniug the sound transmission characteristias of a nail or ceiling assembly, the normal test procedure is to de termine decibel loss of sound intensity through the assembly at different frequencies* Notice in the six pages that there are 11 caimans under the group, starting with 125 end ending with 1*000* Tsars ago the common acceptable way *;es to measure the loos at nine frequencies. In recent years this has been increased to eleven frequencies. The reason for showing two figures for frequency heading is again differences that have developed during the years. Notice the ratios beginning with the figure 1 for .123, the succeeding numbers ays 1-|, 2* 3, h$ 6, 3, approximately 11, approximately 22, and approximately h0 This urns later changed to start out tilth 125 and roughly approximate the proportional inureasss with two numbers not being taken* The figu.ro generally quoted as the sound transioiss5.cn loss of an assembly la the arittastic average of the loss at nine frequencies. This is what if? shown in the column. headed Average SB* 128 to Is.096., The ncasurai.-srst of sound transird scion through aasomblios has tven limited to two facilities (Tatiana1 Bureau :> Standards and EAvorbanks Laboratories) until vary recent years. It is v.v.`7 technical* These people have rule changes in their test proendure iron year to year without regard to tha s::.b results on to tbs sponsors of sound transmission tests, il&ny paoplo ir. industry noticed in 1953* X?5U, and 1955 that it nag prac tically ir.posoible to retest an assec&Xy except hoovj masonry walls that And been tested in the lj.0{s and get tea ssm result, the difforoj;c-3s became so obvious that in December of 1956, and cafestive January of 1957 the Rivtrb&nks Laboratories officially advised all .^nufuctursi's and other organisations c csruod with v uuf fasta cithvr in years before or in the fntvec that vtuayuja in thoir re'choi of tent would result in a batter and trisr evul- action of the sound transmission characteristics of tho Assembly,, but that the insults obtained in the previous ycres wore too high vs result, to muha the earlier results L-v-vo, they ahoifvd be r -frood by ;m avarngo of five decibels. In view of cue yrsab ceaL -rurntion that had been given to tbs average docile! loss of u:,;y -cso.or'olies through the year", rurirfaeiurerv iu qaonral roTM -,.. v ftb that leva mu you will find tba:- awry bon.e-i -uuutlo vboimi ia tacos ub'S-r lip? and cxbjod five cbaibulG to it SGP 0003556 dorf: o t:::.:r i: If'-- I "ftrrv.; terfc- vftoidxi of :r_ rriitreiio:! sv.n eye Yui evc-rege voire of ten e:r:v i:-j.y rhcre elcr!/' levs h-ocn ft :'lfti jlioe Yrryxeu5 lff:h :,vx erlov.'lvird frrci ifo vest result::-; :/d imulvod ior- vttv -xt ysrulvs of vtiol iuorcvch iv v ,v: 'iiw tbdol: vt-iico md decree;:. id ire fceibrl lev; f ; licit lair v:o> ninvvoiiors this was abandoned vary shortly after it rs-.fi :/,:: vuced, ':ia r?ci" iveihed i?s been dsTlacq v.` riot-fry the deeiir-X less v:r an &g sorely as tic "Class IfttijagH ids Is a ratlod g:.v:Lrr; vroDku' ucight. to the values in uhs nicldla range of Traquencifis,. 250 to ?00s *:hicli rsprssoni tho sars csrtecc na&co Yaw.I?* ir^r-al talking* sad r!0'`r.i3l activity oitbin a i'sora. If is det3Lvi.Tins:l try- applying a standard crur-s to ihs graph of .tbs isaaas defcemlKed in tho test at tba uira fraquenaloa Hecults devc-lapod in isst-e today are being reported as a "Class noting51 sines it is the contention of the t-cutftaioxrns in tbs sort iytinvrJvsinn Clare. that the aritlveiivfti fivsrftgu is ai?>- adlag. ;, OespcbiaiveXy-wiss one of the things that. Must as aarlysed oarofully is lust riot the- figure is that is ousted for a scrcss&titire system* Is it an ariihoicticei ftver&gQ for tba nine frequencies* or of eleven looenoio? The "Class Bating" or sore importantly, a figure for one frequency only and of the better figures- at that! I? you will a lady the v-nluos ebon on the atias-Crierl of the va?5 ous asesainlios, you will notice a trlds variety of figures over the vlcvon frequency rex:o free r.K.ir/' asseRhlies * On the othsi* hardy ihst'o are a few that era fairly sor.rfcnt* vli bout .jr* excells-ti oc riding in techni calities of acoustics; yen should be eriro-yo- careful in tolling c building ernur* architect* or contractor tint by doing curtain things? s they can isrprors or change their nail ?, a so ally and Inprove its sound irooviscitm character3.stici; (dscrvoGS the aonvl. of sornvi brvnrriissicn gonsrally).. f;a:v?ri-3r* yn oennet vid tUv losses of tvs ^yrrblios j_f the two rolls vure put toget!'ori Strictly sgesMi'g. the sound transeiooion clifti'actordstio:? of nn asss-nbly which hay not bean tested can only b-3 offioiaj.ly dotorsinod in ft test-, 11 -' the lachnioicre o.t hhs scevd tooting let-oefthorius i'rro loon proven rrong on their -.:TsuKct.ions rhen r: 'ic-.fr 1-/r:flire 'vr-.v; loan tssstsde to :t,-lt} 53 rreJl or the ether corrrnirs, t:: Komc; tsrte of rrv teordrlioc os try rye da'-vlop-od. You vlli tv given additicnai ir?ore:ction yh.sn ft is avsilabls-. .r tdlitiov :tr?-v- 'r.i'C; along thcuo Hrior- pi\rtirfUufy with plaster ascoa'-bli.gfft: till', eoch rrlr r. rn rlrvld tvrs onfitlri ''tettiog arc! fieri,very e: r: fx-.::/rr:. publicist by t::o !-- {1. lv;.-."?.;vi of Lathing red lirc-irrrod ivoor.::' -::f St-ftrdrrdr '-' ' .i'.r' v; Ki :?!."'i =.n-d f'iruoii-ST r Mzr-rrt lf;f: t.:v:: 1?) entitled lur-v! f0 vtiif on e .' r-l;, rod llror Oerrivi xtic:';'!, i.::- -Lie-.or; -rrt .'-rifttiug Offie:: for 1v.;c Hi rev fit; ft: dr. rile!: ' '.rl-! to ;rj VAnir tvobirr fco'vif cvlly little ax no grerviding in pipvdoy^ ev,tioer!.-p., 0: '-.-. :..t .;1.; : : :J.v 1, grot- rhv> sour.d tuvror'iss' f -:::.v: : -.-: : virrs:i re -the bxgirvlop. irere : :v rovvi'cl prgra of pr::-* f.:: 2 for tboso of ecu u-ho lave frohics-oturf.!. -..':! ore cototrutf. a is, lofer olto to the A.K.A, SGP 0003557 CD CO z C<O --H- cc CO U>J -ZDj in Q- u>cci. HO_ < CO 00 o COO CmMm O CC H < U. CO U>-i UbJ- rt O) CM CM CO CO CD 0> gg CO o CO CO -M* -M*; CO MCM* CO f-- lO 10 G> CD 0> 10 CO M1 {* CO CO C> 09 CO M* M* CO CO fw CO in m in 0)0)0) CM CO to 5* G> 03 oO' CM O I 10 10 I O 1**0* CMM* CinO CD CO 1o>0 O CO oS CM CM f-o CO M- 91 o o> 10 CO CMO* C1O0 SOUND TRANSMISSION LOSS IN DECIBELS FOR INTERIOR PARTITIONS O M" oO CoM CO CO CM CO O O CO CD 1 h- O CO i*- r* | CM CO UJ O cm o-- CD 03 10 10 CM CM o zz. O M10 03 O CO UJ co co CM CM 3 O CD; 10 10 00 O O' OJ CM) -- CM UJ 10 CM cc r*- cn CD f- u. 10 001 CM CM co JX h UJ UJ u. ZL Q. <O. CO COO*f. CC h- UJ CO Q 1CM0 cCMo :sCjl I 0c3n 'co s<c o SC CO 03 MM*- Mf-* -- CD CO o CO MCM O CO M* 00 CD CM CO CO -- CM CO CM CD CM CO C1D0 CCOM CMO" C^M cycy CO CO co ca ? ?? I CO CMD* M- 1 O* o KO 1 M" CO M* I CO CM M* M* OO M* M* r- O CO I <o co co l CO CO CO CO 1 N* CM M* 1 CM CM O' 1 CD in CO co S3 -- CO "i Jm CM 8 o CO 1 CO I 10 fCM CM O" ChM*- N1-- hCO- h- CGMO 0M" (M0- -I- co CM CM <0 I I 10 > GO W C CO CD h- 1 CM 10 e 03,03 J33 I=--3 O<s\ co aco. oo o co co co OO O CO CO CD o a co co UJ CC X x UJ CD CD -- -- <<*0- M* CO XX es CM CM O UJ CC UI CD cp < 40 SO 03- 3: cr oo gg CD l Z CO --ou<. UoJ co "GYPSUM PRODUCTS MAN UAL CHAPTER X CO K CD ES 10.CI2 CD CM M" -J 10 __ M" < >O < 03 -- CO CO UJ o M* 1-- o CM "3* O* 03 <J> O-- tCoO ? co to 0M3* O CO r-- co 9 CD CO CO o co M' 00 mm CM o* CO CO 0CM3 MCOr `y * CCOO V $ O o<o CO & CO CCMO9 10 CC 10 10 oo s CO e00 s CO CD CP < CO I CD CID o CO c CM I vy Bestwall GYPSUM F irestop BWG -f/S CO UI CO UJ CC mi CC mi >UJ *<>UI-< 33 3s CM CM UJ - UI - 33 33 CM CM f X J*3D CO OCTOBER 26, 1962 SGP 0003558 '-J Ardmore, Pennsylvania October 31, 1962 TO: All District Managers All Salesmen PROM: General Sales SUBJECT: SOUND TRANSMISSION TESTS BY: W. 0. Stoll - sad We have regrouped and added to the list of the Transmission Loss Tests under Chapter X of the Gypsum Products Manual. You will now have tests on Plaster Systems, Solid and SemiSolid Partition Systems and Bestwall Ceiling Tile. Please note that some of these tests are made by cooperating manufacturers of steel partition components. These six (6) pages are to replace the test list now in your Manual. Familiarize yourself with the sales aids available to you in this data. SGP 0003559 cc to UJ X cc >uj 00 O_ "< CM I-- I to S& 3i OO <3D) oo M* M" CinD o> **" in CD oo CM CO CM oo CM CM lO M" m CmO --? --cn O 001 o col Oi 3 o m co co co ID OO Crt in in CM CM in cm! f- Oil M* m M* m in 00 CM CM cc t-J UJ Lu UJ CzQ* <c CO a Q. .J CO ocl H Uj! 60 CO co CM 7 CO LU s Xo o "C--gD*1' HD-i O< CO CL. COJ CM CM CO Oi " _ in $ CO o M* CO CO CM CO CM CO o C-- s CO K M* o o cb o> o> CO ooin in M* co v co CO CO CinO Oi *> in in Oi iinn Oi o CCOD -- ---- o CO Oi minm m in* in CmsJ M" CM M* co m in 00 CO CO in o m m CO CO co m C5M5 o in o m "i iw *r M* CO CO in CO "l CO o* 7 CD in ce h- . < in * oo oo e CM -- CM In in o> co in KJ co r- r-- <o "i "i f*. 00 M" co f- r- M" M* CO CM M* M* LO CO in CO co in co CO co r-- CM O co in CM CO 00 CM CM CO --o CO m in o in 1 1 -- in in in in m `t ? cc cc z H H- t- tt s CD co < V. in in r-- in m o oo o s o o <* CM CM CM CM <r 00 CO CM co GO CM CO CO CO CM V CM M* CO CO O CD .m `t^f z 1- s < CO CO o o e CM in v co O' CM OO co in CO GO CM CO CM O h- _? `f 7 wJ - < co CO o o e M* CM o m Oi MCO M* Oi CO CO in co m - *11 CO 00 & in o o & CD 8 oo m cn in in m s M* O M* CO <o t* CM "l 00 7 CD _ < CO o o c CO SOUND TRANSMISSION LOSS IN DECIBELS FOR INTERIOR PARTITIONS CD -J Z S CO X<0 *-3 U.C9 2 2% UJ Z IT) ct oo a co co HO CO tU X^M e -- - Ul 3u 0u -- CD z -i < Z -H UJ -C CD S* a ,CD z in -- UJ t CL Pi Z o CO CD o< XCD "00t O<-- Uo--J lu CO > CD CO m GYPSUM PRODUCTS MANUAL CHAPTER X -f 3 I 60 s ^co 10.013 Ze co tM U J CL M O o S os * 5 CO Oa _J z ooCS uj cHo n oo 0<0 I- S jCO co QaK .w : OK- S u co I a om o. eo ^co a. * a O> oi -> CL. O> O.J $ co. October 26, i jJv. SGP 0003560 CUJEC__O___o_ CDO) > CM h-- O < -- < uj OU uWi >- I-- o CD Oo 0o5 M* M" O N* o> P) CO CD CM CJ> CD M* in O) O) 0) M* 05 -- CO ^ ^ O CO Oo oM- C\J O CO v CO CD M* in r-- m- Mto- o> lO CD O) CD sr 05 tf> CM lO CO CO M* M* o r- o CD CO CO t o^ ^ to id in 10 O) 05 0) 07 CM CO 05 CD -- CM CO co co m* m* O M-j O CM oo CM O O to CM o to 05 lO CO P5 ^ ^ M* M* CO N CO CO CD tCoO CO S~| i-- 05 m to! CO CO CO CE O V to OOI U. CO CO I o O CD I in lo! CM CM I CcOo sCO: oo in m hCM CO CO O h- in cd! -- CO CE CM cm! c--cCzooO: oU<---DJj <QcOcz oc 2<oUJ s-- UJ I-- JQ.lL tn o co 0 M* CO CO in co m CO 3 cOo m 5 tCO CM -- CM CM I 1 in in cd M" I i in to W W CE K CD CD f-- 05 CO ID OO CO CO CO CO CCOO CCOM CCOO OCOO CD -- CO O CO CO CO CO o O' r-- cm o m 0000 r-- p- in in oo -- cm co I'T'T t O N f*- f-- 05 OD ID ID J oc oc or I 3Z CD I 3 UJ s 2 IE <CLc. o--! CO CM CD Ot=--3 2O-- CO <c III I i a. 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Z3 in a. > > CD 0- CM o -- J o CO 10,014 CO T= o 1-- CD ID E H* CO o o o __1 o CO UJ CO CM CM M- to CM CM 0 Oo Oo s 3i 2: CD e s o CD as rE UJ 0 CO CO CO CO >- > > >CO CO CO co cr ce ce os ui Ui UJ Ui E E gE E E E E Z3 a a a EE s Z _J J j -I -J j *< < < 23 5-- l-- H> CO co co CO ui Ui Ui Ui CQ co CD CD o z o o h- ca 1- -J ce <3 Q_ E ma < co lu cu Ui >* oc CD a. e ui co o -- in CM a Ui E E a z .z oo -- ce ---- < 1- CD aa <c a. tt- o 7- W UJ lu ce ui -- ae u. a. s UJ CO -- tn M* 8WG Bestwall Gypsum- SGP 0003561 October 26, 1962 CD ccoo 2-- 55 OK M* CM in CIDO CO CoO o -- CO CO ~J co tu 2 C2O -- oU* g < o o CO > CO CD <M--OO- o) <oc U. CO- UJ O Ui tn <o CD a> O CO, O CD o o' O CM 00 co CM C\l! OO "0C0- oo CM CM Oo M--M- M-, O MOO COM tOOo --mCM O M- lf> CO, CO <r>l O CD in in CM CM ihn-. com> I in col CM CslI fco CD CO ? o M" CO CO in co CM CO 03 CM CD CM n cm oc * JUJ lit HLl. o, -- cof -s T c* CD CO CD o> o viCO in CO CD co in co co CO co CD CM CM CO CM CO * CM M*' CD o> " o N CM . CD <T> in co m M* CO CO MM vf CO o in CO o> 03 M* CM M* rM* CM <o in M- CM O CM M* CM CD CO CO CM CM O CO CM 8a % CD o CM m CO M* _ CO 03 Sio> in o in in M* O CD MCD M* MCM M- __ V CO CO rco 7 %<r o> CM CO M* CO CO 03 03 O CmO VCM CMD* O tn CMD* CD M* in M* h* M* tn M* vr M" m M* o co M* M* cr--o M" CcOo 0CO3 CtM- cino CCOM tCO in in 03 CO co 03 1t CM CM CD CD _J H- CO 9 CO CO CD 03 M*#* CCOD CO CO CO M* M* M* M* O Mm co icnn 0CM3 tn CM % tn CM f| CM CD mJ H tu s<; 2O <C -- o- 3C. I-- ID O CO CL. CO Si 03 O 2 as * Oo Zu W> CD CM W co ae o _CD C * * O J- >* O CO CO in I o s: i< X o t-- co o OII--D C-_JD) O oaz SSI HXOCO- <OCccD. o gg CD *t 2 CO -- L-J oo ul co GYPSUM PRODUCTS MANUAL >- > CD CD CO in m CHAPTER X >* CD in I 0*015 e CO 00 O in a 1 <o oS j< >- o CD O CO o f> o = tSi z a j u> oacwz<h:t hsG>. j 3 uj a >o CD O m po M" CM e 7 CO CoD- CoO a 1 CO* SE So uoZ o s J OL >CD CM o om so o s CO " MCM" tn ao n ma 1H o3 eo -M ssOs <f11-1 o s: o cQo |C-S _J u j s: o 5? K a. CO s >- o 1" CC < CD 2 Q. CO \m tn CD o CM1 =3g" 4 s: O ill a z: oa> mui a. >CD CO to SGP 0003562 October 26, 1962  SOUND TRANSMISSION LOSS IN OECIBELS FOR INTERIOR PART IT I OHS o az :i c-=Jo) lO or 1 GO UJ CO O 0>| O > CM f-O <c m*L ce Hi <e u_ col UJ O llJI >- H -- r*. M* 07 o 0 CO * CD 03 * o in M CO 07 03 CO M" CO 07 "* O CP O 07 O O GO O CM CD GO CM CM O GO O M* o CM CM O M" O --' O MO CM OO O GO] o GO f*-- hj O CM o --. in m| O M* m co co co, o co, mm CM CM] lO CM] 07 j m col CM CM 1 CO co m GO m lO -m M* m mO M* M* co CO CM 07 M* N* ** to CO <* CO o* CO M* in M* M* M* CO O CO o m m co in N oCO M* 07 CO CM M* in co _ CO 07 M* 00 m CO m r-- co M* m MCO CO M* GO CO CO CO CM CO -J UazJ H- UJ O. U. 2 <C CD O' Q_ J CO co o r o i-- u. t QC Tu<o I-- LU co m UJ 2 4 I =? =? CD CD CD CD o --=1 o eO co oo# m* r-- CM CD <_J 2 O UJ co3 CO w N 2H S --o to -- vCO O K in ci UJ 3 CO 05 to UJ 3 32 CD -- O0 co < u. -J l-X O co CD -- H < --3 -O0 203 CO CO E \ 2 3a u(Di CD O t- Q S CO C CO -I O N CO 4 I- ss CO O -- fsl H t _xj ,,co \ CO in a co 2^ O60 CD Js O CO O<Luc GYPSUM PRODUCTS MANUAL o CD CO ^ CD "f 2 CO o-- UoJ UJ CHAPTER X in 10,016 K UJ m CO CM 8 CM CO CO Mco O' mm M* CO ^4* 07 CO CD CO . CO 07 o CM CO CO CO GO CM CO CM CM CO 2C CD o CM soI CD CM hX oFoii. soos CD CM uj SGP 0003563 October 26, 1962 io cc co Ld ID > * a. oK ac cd tu CD O I > CVi o > <r h <u. w ID O Ul > *-| O CD, o o> O oI 0> s CM CD O CD oS CM CM I O to O M-l S CM I o ol -- --1 o col o col N r*-l O CM ( O --1 to tn| to rtO to o M-l to col co co| to in O CD LD to CM CM CD CC CD < O O. Z LO] O CO H - D CO CD LD <t CD CD -J o zco oidoce c-- CZK O cc 60 s to 00 CM CM "4* CO M* -iffi t' zld a. < ad a. --i co *4 CO CO CQ LU I- = o CM to CD zo << -- a. x CD Z o-- =3 O I- < CO a. D Jco CO to o 4 o CO CD z O so c X u. s X -- CM -- IO 4* <J> ^ ^^ 0^)1C0fl (C0O N10 O) O) 0)0) I 1s CO CO r-- 40 CD -- O 4 o> 1*co Hm CD -- "i o> 11 LO4 o> co CoO> co 11; 11' 07 I IS CD to CD I IS s1 !3 CO t ( CO CM | I M- CD 1 1 CO CO | J M* o "4* to0 ay CO tO4> f- CO o H CO to CO m 4 o CM o CO CO in CM CO CO H to 07 M "1 CM LO to4 07 CO o to IO CO to m CO CO o O CD CD o> IO 07 MM o 4 CD to in o LO 07 to CO M* o o sCO 0 CO & o CD 4* to 4 in o CD CD 'tr O) co o> o LD to o CM to o CD o 4 o to so> 4 CO M* s 4 CD o CO CO CM CM CM CD 9000 to '* co in CM 00 07 --. tO 4CO 1 4 -- CM CO CM 1 I LO 1 00 CO K CD CD CD H CD CD 4 CM "** 00 D /-N H* X TS cc. a ------------ II II If II .CQ^CD^CO^CO^ to m m to c So s. CD M* *7 4 O OOO o o 4*4* * 1 OOOO o o CD CD CD CO CD CO in CM O h- X t CC Q Hw S co CD to 4 O 4 O CD I mj t CD "" sS UJ sX CD H "4* M* ^1* CO Ui e a. CD co K X X X cp a \ J i- bS. K X -- C Z IO J e s s HO M CM CM CM 090 i z a. o co * M* CM 07 *?^ NX to X 1o cc o CM CM O 07 07 *s'' mx 1o -J o Hw o CO --x 07 X 1o ~J o V-- w e o 4 to 4 O <> CO IO J =3 o o co e CO CD ou oy 4 H _o CD => CO O 21 s cd a -I O CO^* Ul -- o co a h =5 <C s eo *= -J .CM X O N. o o I- o "" CM CO 2 CC -- Ul Z JBO 2O -<0303 O Z LX. X CD V O) to 07 -- to 4 N to O to O 4 ay in M* S CO s o to r*~ co 07 4 H WM oa CD X 1o J o H- --- s s to o- 3 - Q. mj OQ U) XO 2 CO X= I- CM I-- Ul UJ Ul CSS o CO CO CO CD CO O GYRSUM PRODUCTS MANUAL CHAPTER X q- a. -- > x O <J 2 UJ * >X O H UJ 08 H *eI s =H co tu I > oX l-- H ce < ui J O Ho to E < 3 ttl J IO H Q_ a- -- > x o u3 CD CO K- J\J 10*017 io o = CO H . <c S. o o HO O- 3 a. M* a O ul o co x uj co o S - zjoo a CD CO Lx. c x -- o_ a. >- o o* uj to os oh c co 3 <t \H O CO CO CD o O o< XH Ul CO CL. U oc O CO -- s a. a ^-- CD CD ll. to October 26, 1962 SGP 0003564