Document LgV8mkJno8oZ71peO01Ly2Q93

ALUMINUM COMPANY C>! AMERICA ALCOA fUJ'- : :-iG PnTSBi;'v. pen:-.`vt.v/!!/ 1987 MARCH 20 Ot{(L (UJjMX^<L' / i. .CA !/ Organization Resources Counselors, Inc. 1331 Pennsylvania Avenue N.W. Washington, D.C. 20004 Attn. Darrell Mattheis Dear Mr. Mattheis: In reference to the form drafted by the ORC Asbestos Exposure Task Force, I have the following comments. The question concerning other fibrous materials in item 5 should be eliminated. It is generally recognized that the fiber counting method is nonspecific, only counting fibers which meet the size criteria. Because of this, I don't think that we should make any distinction here for the purposes of this study. In section B on Air Sampling Data, some of the sections can be combined or eliminated. Delete the "date" and the "worker number". Just ask for one ID number which will link this data with the complete set of data retained by the company who contributed the sample. This number could be unique within the company submitting data and be included in the "confidential information" not to be released outside of ORC Staff. Each draft form also has a space for an "ORC CODE" which I suspect is a unique number within the study assigned by ORC. Delete "Amount of time spent working with asbestos"; this will not be as useful in grouping the data as the volume of asbestos removel represented by the sample. Something alluded to in the directions accompanying this form is that there may be a series of samples (possibly taken to prevent sample cassette overloading) which represent a particular task conducted by one employee on one date. For the purposes of this study it seems that the best way to handle such serial samples is to ask the submitter to go ahead and crunch the numbers and to submit data concerning this single task, on one date, by one employee, on one ORC SAMPLING FORM. Page Two March 20, 1987 ORC In general, this form is concise enough both to be utilized within our field sampling effort (for a finite period of time) and also to enable the ORC Task Force to compile and group data on asbestos exposures. ^VCLUAa tfuf'p&.x LAURA RIPPEY * Staff Industrial Hygienist FIBER.LLR cc: R. S. Danchik, ATC R. M. James, Pgh 6 R. A. Milito, ATC L. F. Schneider, Pgh 13 /' . 0Z'/21 12:16 P01 * ORC WASHINGTON February 27, 1987 Tcj Prowl Laura Riopey ALCOA ORC, Inc. Attacned is a draft of the Form for Recording the Asbto fcxposure Data and accompanying instructions which Steve Dixon, Dupont, and R. Uiolfe Wagner, IC1 Americas, have put togathar. Four Pages to Followt . * 87* 02/21 12:16 i Qrl *\: { VC J Ii 1, l! U Cl ij P02 *ORC WRSH1NGT0N I Vw 1 < l * \ 1 7 1 IJ U\ l t t 8 I? X fc \j I 11 i ij G G i * i s i I 11 :i l I 5 I .lcl A--k 1 IJ IJ IJ 1 1 1! 11 j IJ i 7i j 4 Ji 4 * 5 j p 11} c IIII0is J ? 3 3 3 1 III] !1i1 i I n 1II M I I SIGNATURE/TIH-E OF PERSON FILLING OUT FORM i  8 7: 02/21 32:16 P03 *ORC WASHINGTON INSTRUCTIONS FOR FILLING OUT FORM (to be on reverse side of form) DRAFT A. BACKGROUND INFORMATION 1. Form of Asbestos Containing Material^) Being Worked With What Is the type of asbestos material being removed/dlsturbed? 2. Method to Control Asbestos Exposure What Is the type of method(s) used to minimize the asbestos exposure? 3. Work Done Indoors or Outdoors Was the asbestos removal/disturbance done inside a building or outdoors? 4. Percent Asbestos in Material Check the appropriate box If a bulk sample of the asbestos material has been analyzed for asbestos content. 5. Are Other Fibrous Materials Present Other fibers such as fiberglass, paper, and rock wool will be counted as fibers by the NIOSH/OSHA analytical method. 6. Asbestos Sampllna/Analvtlcal Method The NIOSH Method 7400 and the OSHA Appendix A method both all for the use of 25 mm filter cassettes, sampling cowls, and specific counting techniques. Please specify any modifications made to the method. B. AIR SAMPLING DATA 1. Date - enter month and day 2. Worker or Area Number Each person or area should be assigned a unique number. More than one sample can be taken on one person or In one area. 3. Pump Flowrate The pump flowrate should be the averaged flowrate as determined by calibration with a primary standard such as a bubble tube. 8'.7, Q2'/27 12:16 P04 *ORC WRSH1NGT0N -2- (f------- ---" "-----\*\ DRAFT 4. Sample Duration The duration of time for the sample. 5. Fiber Concentration The fiber concentration (fibers per cc) as determined from the laboratory analysis. Use *GT" and "LT" for "greater than" and "less than" (respectively). If the sample filter Is overloaded, note GT before the result. 6. E$t1mated_B hour Time Weighted Average (TWA) If more than one sample was taken on a person during a shift, a time weighted average should be calculated using the below formula: T? ui Cnln Tl + T2 + ... Tn Cn - the fiber concentration for sample n Tn - the sample duration for sample n 7. Amount of. Time Spent Working with Asbestos During the time of the sample, estimate the amount of time the worker was exposed to asbestos. Do not include preparation and clean-up time. 8. Specific Activities Insert the code(s) for the specific actlvlty(s) of the person during the period of the sample. A - Operator performing task with direct exposure to asbestos B > Supervising task C Operating sprayer D Onlooker (no direct exposure) E * Monitoring exposure F Clean-up G Set-up H "throwing" electrical or telephone cables above false celling 9. Unset Conditions Was there a greater than normal exposure to asbestos due to an unplanned event. Specify event In the comments section. 8 7, 0-2/2 7 12:16 P05 *ORC WRSH1NGTON (r~ -- DRAFT 10. Amount of Asbestos Removed For the time period sampled, estimate the amount of asbestos removed In cubic feet (length x width x thickness). For pipe Insulation, specify the pipe diameter and length of pipe Insulation removed. 11. Comments Specify any upset conditions, sampling pump malfunctions or other unusual events. RWW/tlb/870220