Document 2jkQm22jex6No1vy8Kxb4LNDg

October 19, l^6h Mr. B. 3# Davis I. duPost de Nerours St Company, Inc. iilrlngton $$, Delaware Dear Eusa: Subject: Industry Safety i-ieetisg vilaingtOR, Delaware September 9, I'jSk e are attaching copy of notes we raade at our Industry Safety Meeting in Wilrdngton as to what we believe was the consensus jf the group on t.-.e various questions that were raised on tie -?,onda . o would like your consents, as well as those of your group, on these questions at -our convenience. Yours very truly, K. K. Ball, i&nager 1'roc.uct Service and J.ifety HK3:vb .ttaciii.ent 13: Dr. J. C. Calandrs Hr. Osborne I're -si Dr. George Boush, Jr. Dr. 11 -... lieiioe hr. I.. ;f. haiKlers (Alt.) '' " * " 0003271 IJOTES QOf INDUSTRY SAFETY HEETOfS wS'ielipStienmgtbGenr,9DeIlya6wbare The question of whether or not exposure to lead in sludge outside of a tank would. be^fatal was thoroughly discussed. It was agreed that such exposure would not be &jmi and that if es&iauice ^re; farfcgfr, it would lave to occur through the respiratory system# A ana could get such an exposure by remov ing fresh air equipment while working in a tank which had contained leaded .gasoline. regarding the rest of the iteij* on the agenda# it is believed these were an swered as follows: Ill Respiratory Protection i# Is it safe for can to handle sludge resoved from gasoline storage tanks without respiratory protection? Answer: Yes 3. Is it necessary to devise a field method to determine organic lead level in sludges? Answers fo* (Ethyl Corporation is using a field raethod which is accurate within if0?S.) C. At what concentration can sludges from leaded gasoline stor age tanks be considered as a .non-toxic substance? ..newer: 10 ppa 1. Is it safe to have sludge spread in the open for weathering near a tank which is being cleaned? Answer: Yes IV. Protective Clothing A. Is it sale to take coveralls contaminated with sludge home or to a .motel for washing? 3. Is It safe to wear clothing contaminated with sludge to a res' tauraat or bar? .-.swera - A and 3: This represents no problem although it would be very poor practice. , j</ f 0003272 . N6554.0 PROPOSED AGENDA - INDUSTRY MEETING PLACE: DATE: TIME: Wilmington, Delaware Nemours Building, Room N-8419 Wednesday, September 9, 1964 Start at 9:00 A. M. PURPOSE: To review the adequacy of the gasoline tank cleaning precautions and recommendations with respect to recent incidents. I. Review known facts with reference to the poisoning of three men at Westville, New Jersey. A. Description of tank and surroundings B. Methods of preparing the tank C. Description of crew and equipment D. Cleaning methods E. Sludge analyses F. Lead-in-air analyses II. Review the recent data concerning the concentration of organic lead found in sludges removed from leaded gasoline storage tanks. III. Respiratory Protection A. Is it safe for men to handle sludge removed from gasoline' _ storage tanks without respiratory protection? B. Is it necessary to devise a.field method to determine organic lead level in sludges? C. At what concentration can sludges from leaded gasoline storage tanks be considered as a non-toxic substance? D. Is it safe to have sludge spread in the open for weathering near a tank which is being cleaned? 0003273 2- IV. Protective Clothing A. Is it safe to take coveralls contaminated with sludge home or to a motel for washing? B. Is it safe to wear clothing contaminated with sludge to a restaurant or bar? C. At what concentration of organic lead in sludge and/or in air is skin protection against vapors necessary? a/' u- i v / y V. Working Conditions A. Is it safe for tank cleaners to work more than 8 hours a day? B. How much supervision is required? C. How many men constitute a safe working crew? VI. Blending and Mixing Procedures A. Are mixing procedures which are currently in use adequate? B. Should rate of addition of antiknock to tanks be limited? C. Should we recommend extra mixing or flushing or leaching procedures in blending tanks prior to opening for entry, cleaning, or repair? VII. Summary , A. Precautions: What recommendations should be made to the API concerning tank cleaning precautions published in Bulletin 2018? B. The role of the manufacturer of Antiknocks at gasoline tank cleanings: What position should the manufacturers of lead antiknocks take with reference to contractors? K T 0003274 Du Pont 8/14/64