Document x8MnpR4QexXDra3bXBwkv15y

FILE NAME: Goodyear (GY) DATE: 1976 DOC#: GY044 DOCUMENT DESCRIPTION: Government Inspection Results The Industrial Commission of Ohio Division of Safety and Hygiene 2325 West Fifth Avenu Columbi, Ohio 43204 Phon (614) 46S-3M5 . vi,.* 47th All-Ohio Safety Congress & Exhibit April 12,13,14,1977 P W R P -ssssa a SAFETY 7 7 s s s a iN / / BOR&MN'IASEMB* Goodyear Tire Rubber Company Akron Ohio 44316 ' Risk #S.I. 2351 Attn: R.W. Modrell Manager Corporate Industrial Hygiene Dear Mr. Modrell: On December 7, 1976, air samples were taken at the Goodyear plant, Logan, to re-evaluate employees' exposure to MDI (Methylene bisphenyl isocyanate) concurrent with the same air samples taken by Paul Bankovich, Industrial Hygienist, Goodyear. The Division's samples were taken by using MSA personal sampling pumps, midget impingers, and a mixed acid solution (Marcali). Six samples were taken within the breathing zones of employees, and two were area samples. The results of the survey are listed on the accompany ing table. According to our laboratory's results, J. Johnson's (compounder) second twenty minute sample exceeded the ceiling value for MDI. Also, our laboratory informed me that no TD1 was detectable by Mass Spectroscopy. 1 must apologize for the dela? of the sample results as the Mass Spectroscopy unit could not function temporarily. Since the samples were not run in a timely fashion laboratory personnel stated the results may be question able. Now that the question of TDI content has been settled, more samples should be taken either by a different sampling technique or the same method because of the following: The last samples taken (12-7-76) represented only 40 minutes of the employee's day as opposed to 160 to 200 minutes of survey time used on the initial survey. (Aug. 5 6, 1976) Reviewing the initial results, higher levels existed when an employee was not working around Governor, James A. Rhodes Industrial Commission Chairman, William W. Johnstcn Vice Chairman, Raymond A. Connor Member, laon ard T, Lancaster Safety Hygiene Supt., Philip A. Workman Assi. Supt., Bob Riley Manager ot Safety Congress. Lawrence J. Whalen. - 2- the nozzle heads and mixer. Most the samples taken during his survey (except the compounder) were area samples and breathing zones samples near the nozzle head and mixer. Most of company samples were also near the nozzle head. If TDI was used, there may be a problem near the nozzle heads because of TDI being somewhat volatile. However, MDI having a lower volalityrate,would possibly need heat to release it from the resin. The heat found when the molds arc released could be a time when MDI is released. Taking all this into consideration the results of the first survey on August 5 and 6, 1976 appear to be more indicative of the actual conditions. Lastly, there is question as to which laboratory analyses are correct. This must be resolved. Perhaps it would be profitable to phone Ralph Weigelt, Director of the Industrial Chemistry Laboratories, Ohio Health Department 614-466-5304 to discuss the methods. The laboratory has stated that they are running the samples by the NIOSH method for isocyantes. Also, because of the interferring aspects inherent to this method, the matter may not be resolved, until a better method is found. If you should require further assistance from Division, contact E.W. Tyler, Director, Industrial Hygiene & Engineering. Sincerely ,/* Dale Selchan Industrial Hygienist DS tbs TABLE I 1 FIRM: M.D.I. DATE(S) OF SAMPLING INDIVIDUAL OR SITE TESTED TEST RESULTS . CONTAMINANT CONCENTRATION DETERMINED ------] ACCIH Z -HOUR TLV* ** Area sample mixer 22, sun line r MDI S. Knott, foamer MDI Lincoln M. Keith,foamer MDI Sun liner more than one taken (a) negative (5) negative (a) negative (b) negative sample (a) negative (b) negative * 0.02 PPm Tl 1 J. Johnson MDI Compounder (a) negative (b) 0.08 ppm 11 ___ [ 2)1) * parts per MILLION (PPM) ** AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS 3) *** THRESHOLD LIMIT VALUE U!