Document E1oGwkm4jQ50dgwMnpx94QQn

Johns-Manville FINISHED PRODUCT SPECIFICATION PRODUCT: SUPERS FURNACE BLOCKS (PUIB) SUFEBHC FURNACE BLOCK (SHXAT1S) V. QUALITY REQPIRBfflRTSr DIVISION SPEC NO. PAGE NO. rs------------------- 432-4 ____________ Hoter Values determined on Superex Furnace Block (Plain) except as noted* Density (lbs/cu ft) Desired feximum Ifaximum - Modulus of Ruuture (nei) 2a 2n IND. INS. DEPT I Minimum -- 60 Abrasion Loss (nercest) 1. 10 min. 2. 20 min. - 40 n*r4wnm - 70 maximum Birdnews (mjft. by Plastoastar Plain As Received Silicate* 0.75 Cavg. 5 samples) 0*4 msx. (avg. 5 samples) 0.5 max. (individual) E. Change efter BmMss 1. Hardness (4 brs. at 1900F) - 0.9 m.m, mmrlmim 2. ' loss in Weight (24 fars. at 1900F) 1056 maximum F. ^Twwr Shrinkage (percent) (Tested on Dnsilicated Block) Z 1. After 24 hrs. at 190CF 1.556 average 2,0% maximum Q. Magnesia Content - 6% optimum VI. PACKAODPt . Cases or cartons. Cases when sawdust is used. Xrter Trapezoidal Blocks for American Brake Shoe (So. (4* thick x 6* x 5-1/8*) shall be packaged 12 pcs. per 11-5/8" x 12-1/2* x 36-1/4" carton. For additional packaging information consult Packaging Specification Magnesia and Superex 432-5. i y INDICATES Dr.enu Reduction in shrinkage maximum CHANGE ~RtA50N; ffiTUBN-Tfr AUTHORITY r> FOR CHANGE SUPERSEDES: DIR. Q-C. MGR. O.C. Interim Agreement to Product Proposal 011-1C27 . Page 4 esme specification issued 5/11/59 _______ _____ V SUPR. Q-C. PROD. SUPT. PLNT. FN. RES. LAB. C.E. Ernst EJ, A. D DATE Briggs Pocius | issued Fll F ROOM .