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Shell Chemical Company /JpficJi V CmA ]______ LAM 002357 DPMC-08512 Augus t 15, 1978 H. M. Hancock 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 possible. G. L. Buchanan will conduct the air sampling. JDR: gr i cc : M. T. Anderson G. L, Buchanan / D. 0. Chrismer J. D. RANSDELL l , S* ; *>ii w.._; - . !r. ' ... *:r': L 1 ' i-i i s miuifr mtUpfrBiii i iTmurwunnfiw r '* tf f.-t - LAM 002358 DPMC-08513 H. M. Hedrick Conpany Apache Air Blast Abrasives TlM_ s /o /o S' / S' / so ./S z .or / /o . ot o.i APACHE-BLAST ABRASIVE Typical Chemical Analysis Iron............................................. Silicon....................................... Aluminum.................................... Calcium....................................... iMagnesium................................... 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, Fe^ = 9.2%) 38.5 (no free silica) 9.41 (ozt<l&) 6.1 C ox-id*) 1.51 fXfcfc) 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 k .all other elements nil. Note: All the elements occur as conplex silicates in the slag matrix. Some variances will occur with copper production; the above is certified as typical and representative. / _______________ Ql , 4 r .tin ,.09<n .o*/ .o/yt .o/m /o + S- h /o *- s~ ' i .n, 3> 2- LAM 002359 DPMC-08514 H. M. Hedrick Conpany Apache Air Blast Abrasives APAQ IE-BLAST ARRASTVE Typical Chemical Analysis TL1/ 5 /O /o ~ /O S SU') / /o ./s e.s z .OS' / /o .*S(c) . 0/ 0% / Iron............................................. Silicon....................................... Aluminum..................................... Calcium....................................... Haynesiurn................................... Zinc ........................................... Manganese................................... Copper........... ............................. Titanium..................................... lead............................................. Barium......................................... Tin................................................ Gallium....................................... Chromium..................................... Nickel......................................... Molybdenum................................. Vanadium..................................... Silver......................................... Cobalt......................................... Strontium................................... Gold............................................. Platinum..................................... Palladiim................................... Rhodium....................................... Ruthenium................................... 41.2% {FeO - 32.0, Fe^ = 9.2%) 38.5 (no free silica) 9.41 (ox/Jc) 6.1 C cxijc) 1.51 fXfcfc) 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 v all other elements nil. Note: All the elements occur as conplcx silicates in the slag matrix. Soma variances will occur with copper production; the above is certified as typical and representative. 4 4 &7t /n 'X~fZv\A- TLVr. k f- m/x/ + 3l t _ f. / V/r .j/r , ,c>9</t .o*/ ^ .o/r/ .owl . 's' + 17 h + T' *- ~aT*' tr .Ilf S3- (p LAM 002360 DPMC-08515 DPM C 12272.1 LAM 018635 Qb \ (x ~ >'> "r^ -Sb ^ Cb * V/ o X -X \ I X4