Codes and Standards--'(Continued) fife Gases (Toxic) and Dust Hangars Aircraft Heat Pumps (Unitary Equipment) Heat Transfer (Walls) Heaters (Recessed Gas Fired) Heaters (Room Gas Fired) Homes (Prefabricated) American Standard Allowable Concentration of Harmful Gases: Carbon Monoxide Hydrogen Sulfide Carbon Disulfide Benzene Manganese Chromic Acid and Chromates Mercury Xylene Lead and Certain Inorganic Lead Compounds Toluene Oxides of Nitrogen Methanol Formaldehyde Carbon Tetrachloride Methyl Chloride Trichloroethylene Standard for the .Construction and Protection of Aircraft Hangars (1958).

. * National Lead Company National Sand 4 Gravel Association.

In addition to as bestos, shipyards must be prepared to deal with welding fumes, lead fumes, silica dust and a host of other toxic or carcinogenic substances.

SCHA D0LS0 RKELL JGARR PHODG PPARK JFQ JPQ Riccbrough in a recent paper "Nature", Vol. 220, Dec. l'i, 19 attacked chlorinated biphenyls in three ways; (]) a pollutant - widely spread by air-water; therefore an un controllable pollutant. (2) n toxic substance - with no permissible a.llowaole levels causing extinction of peregrine falcon by Induced hepatic enzymes which degrade steroids upsetting Ca metabolism lead ing to reproductive weakness, presumably through thinner egg shells. (2) a toxic substance endangering man himself; implying that the peregrine falcon is a leading indicator of things to come.

hi8 order should have been placed by 10-7-63 :.n order to meet the ''required in yard" date, irhen using average lead time* SHEET NO. 3 DISTRIBUTION COPY PURCHASE ORDER NO.

PROPERTY Specific gravity Heating loss, 45 minutes at 105 C, per cent by weight Polyvinyl chloride, per cent by weight Polyvinyl alcohol, per cent by weight Lead, ppm Specific viscosity 1.0 gm/methyl isobutyl ketone/20.00 C Inherent viscosity 0.2 gm/cyolohexanone/30 C Viscosity, centipoises; 20% resin in 1:1 methyl isobutyl ketone: toluene/20.0 C Color, light transmission at 475 m/J., per cent; 18% resin/methyl isobutyl ketone RE5IN PROPERTIES TESTING METHOD D792 WC-160-H WC-29 4-A WC-93-F WC-20-B; or WC-20-D (instrumental) WC-609-L-1; WC-31-B-2 WC-31-B-4 D 1243, Method A WC-31-L WC-5-K TYPICAL 1.36 2.0 90 5.7 <5 0.59 0.525 400 80 ucc 039343 "BAKELITE", "KRENE", "VINYLITE" and UNION CARBIDE are registered trade marks of Union Carbide Corporar!

(3) a toxic substance endangering man himself; implying that the peregrine falcon is a leading indicator of things to come.

. & Bloss, F, Donald Structural and optical data on synthetic asbestiform materials: potassium-lead silicate and lead-aluminum silicate.

On p a g e 12 you m e n tio n e d th a t the h o u s e k e e p in g w a s p o o r in the lead re c o v e ry a re a of the G reek plant.

MADISON 3 - 2 9 6 5 April 19 I960 IN D U S TR IA L TO XICO LO G Y PLANT SURVEY >*' ' | ` John Zapp, H.D* Haskell Laboratory illlinington 98 , Delaware Dear John* Recently there has cose into ray hands a copy of the "Haskell Report* on results of animal experimentation with tetramethyl lead The sender wrote that it is "confidential*" However I am lead to believe that a great many people know that this gasoline additive is being considered by petroleum industries* The point of this letter is this - ray book is in press but it is probably not too late to squeez in a note regarding ?

NOV 7 1963 Record of Product ^283 - Novamber 1, 1969 Rex A.58 W 23 Lead-In-Oil FIS Use Only - SW 271 Description White Size 25#, 50#, 100#, All To Control Laboratory and Production Departments These rexes are now officially discontinued for ell Sales Divisions.

Gases (Toxic) and Dust American Standard Allowable Concentration of Harmful Gases: Carbon Monoxide Hydrogen Sulfide Carbon Di-sulfide Benzene Manganese 'Chromic Acid and Chromates Mercury Xylene Lead and Certain Inorganic Lead" Compounds ' Toluene \ Oxides of Nitrogen Methanol Styrene-Monomer Formaldehyde Methyl Chloride Trichloroethylene r' Aircraft Hangars Standard for the Construction and Protection of Aircraft Hangars (1954).

White Lead-in-Oil A58 W 23 Recommend, Reason, Purpose Drop as an item maintained in stock at warehouses 2ast of the Rockies due to decreasing dena-td and lack of profit on redistribution basis from Chicago to other warehouses.

All connections shall be without a leak.2(g) -2- TEN 2991 two chargec l-.oscs ohall ho lor. out or; the vicinity ci leading.

Instead I found the means, through industrial support of investigations into industrial hazards, of taking the University of Cincinnati (one Department of it) into certain industrial activities, that threatened workmen and the population generally not only with respect to Lead, but as to a number of other seemingly urgent problems.