Document e5DyBDMeJrLbdpBj837196VOp

INTkA COMPANY CO*ftE4S&E>'C8 General Office* O&Jo AlMailo* ot Ur. B. ? Truss - Ohio 3idg ooi Hr* W. J Sletrart - Ohio Bldg* 1'r. E. C. Shunaa - Ohio 3td. Sebfcct l!r. C. 3 a Hite ~ Ohio Bldg* >ir. 0* 0* Burch - Ohio Bldg* Ur. S. C. Lauehlia - Ohio. eld*, t'r. d* Sco-ront* - Cereal Research Fiie Ur. J. uacbett / dune 8, 1354 I Coaparison of Asbestos in Xeylo and /Cioionpcetclti.Ti Q" Calciun Silicates Tr.o amounts, fiber length, degree of ficcrization, aid types of the e.shastOR containod in O-I, Fnbco, F.vhsrold, ar.i Jchas-y&nrille caiciuo silicate insulations hero been deternined* Asbestos Contents. Fcllcniug a-": t:n amounts of asbestos cenputed to bo protest in x.% tutions rntorials by rwena of a cor.bS.nacion of chssical and x-ray analysest Insulation Ashostta Eaylo Pabco Ruberoid Johnc^Uanrillo 19*8 23.5 23.1 IS.? Fiber length. Faboo urea the longest fiber* it cot being uceoccon to find""tuc3"Ios as long as 2 inches. Johr.r-Uicrille caterial contains aany fibera as long as 1 Inch to lj inches. In sedition, the J *U* product contains the smalloJt percentage cf extremely short fibers. The fibers in the F.uberoid product are shorter than those in Pabco or but are dofir.itsly longer than these found in aaylo. Fiber!ratios. The J.U. aatcrial is in a class by itsolf in regard to the'degree oi fiberis it ion of the asbestos. j;o thick bundloe or stick* ere to be found * This degree of flier!potion and the process employed results in a felt-like integration tf the fibers. Pabso asbestos is by far tho l**st speculated. Xaylo u.d vuboroid are intermediate. typo of Asbestos. All products except Sayle contain cnosito asbestos in cccitioo to ccuytot-ile* Fallowing turn the relative percentage cf the to types; WV-1070 Froduet 5* .Vorite ' Cltrysotil Kayla Faboe Ruboroid Johns-JJanrills 0 so 5? 75 WO 50 55 25 them $4.The chrysotile fraction in all ca<itc except Kayl is of c grad finer 17* C. Tnylor/ea Chief, Ch&r.if<yry Section General Rect*rch Division ( 01 094 041?