Document 6bxjL5oOGz7o6E1pVmaYrgzDo

f) 20NO LI TE " i ** ~^CONSTRUCTION PRODUCTS DIVISION nov $ We have just run out another batch of MK 4 and find that the costnrj per bag at the plant for MK 4 is 230 per bag more than MK 3. This* increase would make it very difficult to substitute MX 4 for MK 3 ` and expect our customers who have large contracts to swallow the difference. The main increase in cost is due to the price of the fiber and I am wondering if everything possible is being done by our purchasing department to get a lower price on this item. At one point, the cellulosic fiber was more or less a by-product for the wood people. Tuv^y are ceil-inly not pricing the product on that busio. We are very pleased with the working qualities of MX 4 and if it were not for the increased cost: we would swing ever to it as soon as possible. I am returning the white paper to you as requested. Cm. - - VL .. PACIFIC REGION -'v *W'3~,'"*Sr7-n Ai c 20096025 " 'V --'oxii'.~-i-. 'i.S;ijgf h. .v ' _*- ;J * -V October ,' 2j'--1/<9* -7- -03 ' -4. -':^. $fe- Air Sampleaon Hono-Kote Job> jobs copy^of the report count s!4;-fro.m, t he two L.A. Also attached, for your informs , are the results from a series of samples taken on thrc iy jobs in Chicago. I believe you will fi 7 these result teresting. Hie Chicago samp' s 1, 2, and 1 .e from a Mor :e job. The Chicago samples r rked 4, 5, 6, id 7 were ta2 '-rv-^etitive jcb where an asbe-;:i ' .reproofs.^ . -:rial was - J. The Chicago samples 8, 9, and 10 are on another competitive job where a fireproofing material claimed to be asbestos-free vas in use. You will note that in all cases the fiber counts are reasonably low, but the one supposedly not having any asbestos **' o showed up with fiber counts. As you know, this method at esent counts fibers but does not distinguish between the types of .bers. --'.' t v*'"?^*;;s.- \B:cgr R. A. Brown 20156590 H. A.B. I 4La ki , ' <' (,' 7 ' -$W/>oes*^6 CHl $r ^ )0 M* -rUt -fitfepsc4/.{. n*T<nei4j_ Bv-- fiftiesros 4*ee. one at the mixer and one at the nozzle on each job. The sanple.nurabers were IA 8 - 9 - 10 - 11. We havo lot had a rep. f or rv>ese samp:. re an., to get it as soon as possible as we probably will need then; if they are good for our -seating in San Francisco with the Board of Examiners. Would app ?ciate your h Ip in seeing if these can be obtair.'i as soon as possible. PA . REGION 201565 91 CHI - 1 (IBM MK Mixing) 7.3 4.0 CHI - 2 (IBM - Application of MK,'l7t.h rioor) 2.6 1.1 CHI - 3 (IBM - Outside Environment) 0.1 0.1 CHI - 4 (230 W.Munroe, Mixer) 4.5 2.7 CHI - 5 (230 W.Kunrce - Appli cation on 22d Floor) 7.5 5.6 CHI - 6 (230 W.Munroe - Outside Environment) 0.9 0.7 CHI - 7 (230 W. Munroe - General Area of Apllication) 0.9 0.5 CHI - 8 (Elmhurst Coll. - Appli cation) 2.4 1.8 CHI - 9 (Elmhurst Coll. - General area of apllication) 0.3 0.2 CHI 10 (Elmhurst Coll. - Applicat ton for 15 Mins, and c1 ermine; ur> f'! o ci rest 5 of tir.-.c (73 M'.s) 2015659? 3.6 J ''I WEK33Y r.A:'.';RArIG;-:'i; Russo ! .1 /' r - i L sC. m I .i ! ' ; SAMPLE MARKED TOTAL FIBERS PER CC. 8 (M-K Spray Operation) 9 (M-K Mixer Operation) 10 (M-K Mixer Operation at Convention Center) 11 (M-K Spcay at Nozzle, Convention Center) 2.0 1.9 1.4 1.1 FIBERS GREATER THAN 5 MICRONS PER CC. l.i 0.7 0.8 0.5 ^156593 ce:>''Cb'.V{$$8$. ;/; x.". > V.V-M _ ^eibre; Awe'S^^-v' Cadliidge^ss. 1 ` ' 02140 v*V- SAMPLE MARKED TOTAL Fi: PER CC. L.A. - 8 (M-K Spray Operation) L.A. - 9 (M-K Mixer Operation) L.A. - 10 (M-K Mixer Operation at Conv?~tion Center) L.A. - 11 (M-K Spaay at Nozzle, Convention Center) 2.0 1.9 1.4 1.1 PI '"'IATER Ti j MICRONS PI C. i. x .5 - /*  ***?V'<" 02151179 tT.^ .U--:;A^B^a-. R A T O R I B S. I N C. - Contulling and Analytical Cham is ta September^28,-. 1970FL-;r;? / 0CT1 1970 Vr: Samples, of 3. 37 MM. MEMBRANE FILTERS , ;_ ^^iSSJP/JSJM 'V .;>,?-. w A- Q, - Marked : FOR MICROSCOPIC ANALYSES (Phase Contrast Method at 430X) Constriction Product s Division' * W. Grace & Co. 62. Whittemore Ave. Capbridge,Mass. 02140 "' SAMPLE MARKED TOTAL FIBERS PER CC. CHI - 1 (IBM MK Mixing) 7.3 CHI - 2 (IBM - Application of MK, 17th Floor) 2.5 CHI - 3 (IBM - Outside Environment) 0.1 CHI - 4 (230 W.Munroe, Mixer) 4.5 CHI - 5 (230 W.Munroe - Appli cation on 22d Floor) 7.5 CHI - 6 (230 W.Munroe - Outside Environment) 0.9 CHI - 7 (230 W. Munroe - General Area of Apllication) 0.9 CHI - 8 (Elmhurst Coll. - Appli cation) 2.4 CHI - 9 (Elmhurst Coll. - General area of apllication) 0.3 CHI - 10 (Elmhurst Coll. - Appli cation for 15 Mins, an d cleaning up floor rest of time (75 Mins) FIBERS GREATER THAN 5 MICRONS PER CC. 4.0 1.1 A 2.7 5.6 0.7 0.5 1.8 - 20156595 "* ,f~' ----- - r,._