Document gbd3KO4LQB1jnMvxew0QxaGb3

!*3Bfe3S3lnS*S SBagaaaBSiFwS August 15, 1978 Apache-Blast abrasive would be a suitable replacement for sand from an industrial hygiene standpoint. The TLV for the mixture is calculated on the attached page. This TLV is significantly greater than the OSHA PEL for sand. Air samples of this abrasive should be collected as early as conduc t air J. D. RANSDELL li. h-dri cY. O,:... :;y Anache Air Plant Abrasivos APAQIE-BLAST ABRASIVE Typical Chejnical Analysis ' TL\!_ 5 /o /o ~ f0> S' SCc') / /o ,/r Z .of / /o .s(c) . o/ 0./ Iron.............................................. Silicon........................................ Aluminum...................................... Calcium.................................... Magnesium................................... Zinc ............................................ Manganese................................... Copper........... .............................. Titanium...................................... lead.............................................. Barium.......................................... Tin................................................ Gallium........................................ Chromium..................................... Nickel.......................................... Molybdenum................................. Vanadium..................................... Silver.......................................... Cobalt.......................................... Strontium................................... Gold.............................................. Platinum..................................... Palladium................................... Rhodium........................................ Ruthenium................................... 41.2% (FeO = 32.0, FedO,. = 9.2%) 38.5 (no free silica) 9.41 (cxt'Je-') 6.1 (ox id*) 1.51 1.46 0.50 0.38 0.18 0.015 0.027 0.038 0.011 0.035 0.012 0.032 0.006 0.0011 0.015 0.029 0.001 (not detected, less than) 0.002 (not detected, less than) 0.002 (not detected, less than) 0.010 (not detected, less than) 0.010 (not detected, less than all other elements nil. Note: All the elements occur as complex silicates in the slag matrix. Some variances will occur with copper production; the above is certified as typical and representative. JTl. ]/rr\ ___ _f- nvs/ + ZsSL t s + rtz. 7fLV/u ^ me A f% f' _ /________ . .C>9vt .Of/ .O/TI -0/VC- J- --S' + ~77 *- ~TcT + (F" A '7T1' ^ r- ' ___1___ . / U l *- ^ ^3 LAM 002448 DPMC-08603