clour distinction rust ha drarm, :<n tea hbcim by the vmeentr^dieted evidence, between tetraethyl i eo-j non leaded noth ice.

B-'J UUP' | N 1988.01 "mivrn. uii i|iiy| if LU23019 Foreword TN previous Red Lead Technic*] Letters, the Red Lead Technical Committee at the Lead Industrie* Association has confined itself to the recommendation of red lead primer formulations and has left other considerations involved is painting to be secured by the user from other sources.

Aaong 29 patients tslios stoolswere assuained, lead was present in 17# 'jfce urine ms eaaaain& in 3 eases and lead -was present in only one case*, although in the tea instances - in 'which load ms absent, froa the urine if-ms present in tit stools*.

There can be no question that lead, in any amount is an undesirable ingredient in any article of food, and if one L:rcup of ranufacturers keeps its products lead-free and another does not, no one can quarrel v;ith the rec onnenc.ution that, other factors being equal, the former should be favored.

*Hy 1, 1957 SUBJECT: PEP LEAD TBCHRICAL LSTTrE NO. 12 To Hesters of th Lead Industries Association: Eiolossd Is copy of Red Lead Technical Letter No. 12, "Painting Highway Structural Steel."

Lead, Pb, Max.

-epalcn should aocrue to u* n* they apparently haws, from ths us# at d o re white lead la oil paste paint or dry white lead la prepared point.

There can be no guestion that lead, in any amount is an undesirable ingredient in any article of food, and if one group of nanusacturers keeps its products lead-free and another does not, no one can quarrel v;ith tho recomr.enc.ation that, other factors being equal, the former should be favored.

i The principal sources of lead contam ination which have been discovered a re listed below along w ith suggestions for elim inating o r r e ducing the lead concentration in operating area s. 1 A list of recom m endations is included at the end of this report.

National Lead Company of Ohio..................

White lead. ............

The latest of the Hygienic Guides are enclosed: Acrolein, Aluminum, Ethylene Glycol Monoethyl Ether, Manganese, Petroleum Naphtha, Pyridine, Tetraethyl Lead, Allyl Alcohol, Allyl Chloride, Cyclohexane, Ethyl Chloride, and Triorthocresylphosphate.

Lead Department...............................................................

(c) National Lead's acicular basic lead sulphate is the poorest of the lead pigments used in mechanical, mixtures.

Advantages of Sublimed Blue Lead-- Proper bas