THRESHOLD LIMIT VALUE FOR TETRAETHYL LEAD (1967) (1968) 0.075 mg/m3 Downward revision?

TOTAL 1,375,300 292,000 490,100 120.000 2.277.400 SDC Louisville Olin Mathieson Rohm 1 Haas TOTAL 2,979,079 182,820 387.200 2x149^022 SFENT SULFURIC ACID Pennsalt -0- 13 (70) 2 (70) 17 (80) 1 (80) Drums 1 (70) 1 (80) 5 (80) 1 (80) VCN Akron Avon lake Louisville Rohm & Haas Dupont Dewey & Almy Tennessee Eastman Dupont Miscellaneous Monsanto TOTAL 571,580 87,800 1,813,100 71,100 28,000 33,020 136,600 689,900 364 138.900 3.570.364 SODIUM HYDROXIDE Miscellaneous Preston Chemical Valley Chemical Union Carbide Commercial Solvents P B & S Chemical BFG (Henry) Celanese Coatings Charles Pfizer Pioneer Chemical National Lead Kentucky Asphalt PPG Industries E.I.Dupont Olin Mathieson 15 8,265 52,644 130,154 103,058 133,003 167,867 194,989 330,593 1,109,243 1,363,264 1,396,386 2,758,520 3,381,155 . 5,27j,.971 TOTAL 16.405.127 Ok o rO GASOLINE Mobil HCN Hampshire Chemical MIXED 4 CARBON Goodrich--Gulf D/574 D/5741 (wet) D/57AC?

As a tool Is being built, toolmakers and designers discuss production and safety features unsafe act and an unsafe condition contnbuted to about 07 per cent of the nonfatal manufacturing injuries reported It must be remembered that an unsafe condition, in addition to being a direct cause of accidents in itself, often can lead people to perform unsafe acts Many tunes, an unsafe act is the result of poor machine design, inadequately planned methods, and other engineering deficiencies Thus, elimi nation of a hazard caused by an unsafe con dition may also reduce the likelihood of in jury from an unsafe act When an injury occurs, the unsafe con dition is often not as glaringly evident as the unsafe act Unless a careful study is made of the accident, the correctable physi cal hazard may escape notice Engineering for safety, therefore, should have as its objectives both the elimination of hazardous conditions and the reduction of unsafe acts.

Secretary National Lead Company 111 Broadway New York, New York 10006 Re: Stein Faint Company Dear John I am returning the papers in the above entitled matter that we picked up from your office yesterday.

This le a situation In which the union is well Informed end Is playing a leading role in gathering health Information on its members.

TOTAL -0- # 113.120 1,375,300 292,000 490,100 120.000 2.277.400 SODIUM HYDRQIIDE Miscellaneous Preston Chemical Valley Chemical Union Carbide Commercial Solvents P B & S Chemical BFG (Henry) Celanese Coatings Charles Pfizer Pioneer Chemical National Lead Kentucky Asphalt PPG Industries E,I.Dupont Olin Mathieson 15 8,265 52,644 130,154 103,058 133,003 167,867 194,989 330,593 1,109,243 1,363,264 1,396,386 2,758,520 3,381,155 5,275,971 EDC Louisville Olin Mathieson Rohm 1 Haas TOTAL 2,979,079 182,820 387.200 3,549,099.

After that I hope to return, on some part-time basis, to the Laboratory, and to have a quiet corner, with freedom from other responsibilities, where I can gather together the Material on lead, which we have been collecting for many years, for publication as a monograph.

.<* Lithopane J3< Leaded Zina T items B Whiting Asbestine 216. 6.0 216. 64 72. 2.0 166. 64 216. 9*1 VEHICLE* 39.OPS Saw Linseed Oil Bodied Oil Naphtha Drier CALCULATED YIELD MANUFACTURING LOW Jt ACTUAL YIELD 303 Jt 59.9 1^5 394 H16^ 39.0 .171 7.3 23.0 5.8' 103.0 3.0 100.0 UNIT COST________ TOTAL COST 6.36 Cwt. 6.89 * 5.87 * 5?

Based on these results, it has been concluded that we have no Interest In the proposal leading to an eventual license under your patents on the irradiation of plastic pipe. tfe appreciated the opportunity to Investigate this proposal and are truly sorry that we could not find Justification for changing our manufacturing procedures to take advantage of this patented process.

LEAD JXDFHES SILICA BOTH PRESENT in lov trace qaaatitiee ,..

His concern is largely whether or not a continued exposure to this material in this manner might possibly lead to toxic systemic effects.

The WHO official -- a citizen, incidentally of tropical Brazil -- was right to argue . against any condemnation of DDT that might lead to loss of its use in tropical countries.

The discovery that these compounds are powerful inducers of live enzymes which break down steroids will ultimately lead to the setting of tolerance limits in fish consumed for food.

Joseph Lead Company Dr.

In this instance, it was totally incorrect, since the man was not suffering from lead poisoning at apy time.