Document NEbk1LyLgZEo7y5825pZkearw

FILE NAME: Montello (MNT) DATE: 1979 Oct 5 DOC#: MNT007 DOCUMENT DESCRIPTION: Memo to Safety Dept/Drilling Contractors RE Asbestos in Drilling Muds & OSHA Regs with Attached New Product Announcement To: Drilling Contractors Attention: Safety Department Subject: Asbestos in drilling muds October 5, 1979 cw.r^ ula5i0ns i?ere Passed on the use of asbestos in 1972 ofhow ?o 5co"mpnilyv with t^heqUreeSgtull?antSi;onFi*trssetlfi.s cSheecondP,osainndg moonree j j5 tani however, xs the matter of providing the least hazar dous work place possible for employees. 5 nazar a sss ss-rs? * - F " ? * ONLY lf theiairboi^ifHht0nS fr Yor^ers exposed to asbestos hundred^of less then on" b S f tf S 1S ; 2 tf" ff ^ ei"i 'S f" 'K n S ^ S i S ? ^ S S " ltf iiL ? in rJ " K 2 0S <r ^ i * Enc: (1) IDontelo 6108 EAST32NDPLACE TULSA. OKLAHOMA 74136 (818) 65-1170/TWX 910445-3386 Bulletin 10/79 INTRODUCING - - 012472 UH IV IS Universal viseosifier for all aqueous drilling fluids. Montello is very proud to introduce you to a new product - UNIVIS - and the story behind its development. More than two years ago. Union Carbide and Montello began a joint effort to develop a truly "dust controlled" asbes tos product. Our Super Visbestos has been a leader in per formance and economy for many years, and its high density, crushed pellet structure results in very low airborne fiber counts. However, our goal is to offer you a product which will consistently result in counts below 0.1 fibers/cc on a 7 or 8 hour time weighted average (TWA) basis. This level (0.1 fibers/cc) is important from an OSHA compliance stand point for anyone using asbestos. By a special Program Direccive (0300-16) issued October 11, 1978, OSHA has instructed field compliance officers to require medicals for workers exposed to asbestos ONLY if the airborne fiber count is in excess of 0.1 fibers/cc on a 7 or 8 hour TWA. Special cloth ing, change rooms, lockers, laundering, monitoring and cau tion signs are also NOT REQUIRED. After extensive laboratory and field evaluations, documen ted by equally extensive monitoring, we are pleased to announce UNIVIS. With reasonable care in housekeeping and application, airborne fiber counts should not only be well below 0.1/fibers/cc TWA, but should be virtually indistin guishable from background concentrations. The key to dust control with UNIVIS is the carefully met ered addition of a specially selected oil to a unique 1/8 inch diameter pellet of presheared asbestos. Although more expensive than adding water, our tests indicate that the oil Is much more effective and reliable in suppressing dust.. This is especially true when accidental spills or bag break age occur. The oil wet material retains substantially all of its dust control properties-up to several weeks. The water treated material on the other hand, begins drying out almost immediately, with a commensurate decline in dust con trol properties. Since spills and bag breakage are sometimes unavoidable, we decided not 'to utilize the less dependable protection of water for vital dust control. 012473 solution was found i n t h l s M e Pkind p*cka? in8 problems. The ea5able multiwall kraft pane? bae h ~ d f PolyPr?Pylene lined withstanding diefll oil treJtedhf L t n r n t0 b of tain explosives applications!**^ fertllizer PackaSed *>r cer- i S w M r S ^ e ^ K o S drilllngfluide ` SSS*# **- f s ! s L >h2 d " ';S s ^ * s a 5 S " ' " if & T 4 S r i i ^ g , " 1- I T " 3'' 250 filter fiamn?"8 monlc?ring throughout the shift. Nearly 2 a r & * & r e s & s 2 r " uS 2? ?fSultinl,eport contains 78 pages of detailed analysis leVeliffC0 1TM iberf / on?-h21! of the 0SHA irlctive controlled'asbestos^has b S n IllllfJfV.el_plng ust spilltandard handlingl but for che occasional and ^avoidable PleTM^ntL information t hu uM ffetl8thy ,a rePrt is available at no charge. or lf you want any further8 918+661-1170 W 11 8ladl/ aCCepC y0Ur C0llecC calls at Bulletin 10/79 106 EAST 32ND P U C E TULSA, OKLAHOMA 74135 (91S) 65-1170 / TWX 910445-2396 - INTRODUCING 012474 uni v i s Universal viscosifier for all aqueous drilling fluids. Montello is very proud to introduce you to a new product - UNIVIS - - and.the story behind its development. More than two years ago, Union Carbide and Montello began a joint effort to develop a truly "dust controlled" asbes tos product. Our Super Visbestos has been a leader in per formance and economy for many years, and its high density, crushed pellet structure results in very low airborne fiber counts. However, our goal is to offer you a product which will consistently result in counts below 0.1 fibers/cc on a 7 or 8 hour time weighted average (TWA) basis. This level (0.1 fibers/cc) is important from an OSHA compliance stand point for anyone using asbestos. By a special Program Direc tive (#300-16) issued October 11, 1978, OSHA has instructed field compliance officers to require medicals for workers exposed to asbestos ONLY if the airborne fiber count is in excess of 0.1 fibers/cc on a 7 or 8 hour TWA. Special cloth ing, change rooms, lockers, laundering, monitoring and cau tion signs are also NOT REQUIRED. After extensive laboratory and field evaluations, documen ted by equally extensive monitoring, we are pleased to announce UNIVIS. With reasonable care in housekeeping and application, airborne fiber counts should not only be well below 0.1/fibers/cc TWA, but should be virtually indistin guishable from background concentrations. The key to dust control with UNIVIS is the carefully met ered addition of a specially selected oil to a unique 1/8 inch diameter pellet of presheared asbestos. Although more expensive than adding water, our tests indicate that the oil is much more effective and reliable in suppressing dust. This'is especially true when accidental spills or bag break age occur. The oil wet material retains substantially all or its dust control properties up to several weeks. The water treated material on the other hand, begins drying out almost immediately, with a conmensrate decline in dust con trol properties. Since spills and bag breakage are sometimes unavoidable, we decided not to utilize the less dependable protection of water for vital dust control. o m 75 Of course an oil wet material posed packaging problems. The solution was found in che same kind of polypropylene lined ***? P*Pr bag that has proven to be capable of withstanding diesel oil treated fertilizer packaged for cer tain explosives applications. re arose 88 t0 che possible difficulty of add ing UNIVIS to the aqueous drilling fluid. Would the oil coated surface adversely affect dispersion of the asbestos pellets into the system? Lab tests and field tests have revealed that Just the reverse is .true. By softening and lubricating the surface of the pellets, the oil actually enhances the rate of dispersion. In order to maximize accuracy in evaluating dust controlled UNIVIS, great care was taken in designing the monitoring RH?1801, first commercially produced truckload of UNI- VIS was shipped to north central Texas, where seven rig locations were selected for evaluation. The locations were premonitored for several hours che day before UNIVIS was used to establish an accurate background count. On the days when UNIVIS was used, accuracy of the TWA was assured by virtually continuous monitoring throughout the shift. Nearly 250 filter samples were collected and airborne concentrations were determined in accordance with OSHA requirements. The resulting report contains 78 pages of detailed analysis. Ths .highest TWA was less than one-half of the OSHA Directive level of 0.1 fibers/cc. Our goal of developing a truly dust controlled asbestos has been realized - - - - and not just for standard handling, but for the occasional and unavoidable spill. A summary of this lengthy report is available at no charge. Please contact us for a copy, or if you want any further information. We'll gladly accept your collect calls at 918+665-1170.