fcfcodt Bequired* Seal* fross Sid Plato-s ' standard dll Casspeisty, SI &egado# California {nf* efeamwltv*e letter dated Feferaary 2% l$i*8) March i;> SfttenBlnatlaa etf lead eoopeuiMUi present it&Elit- Per Gent Lead as lead Tetraethyl Per Cent Lead as trletfeyl Lead Per Cent Lead as .Diethyl Lead Salldee Per Cent Lead a hi- ral Trlefcfeyl Lead He1Ides end Oarfeeaafcee Per Cent Lead m Znorgaaio Lead <0,00001 0,0005 0,0017 0,00045 0.225 Reported t 5-^-4$..

Tetraethyl Lead . 0010833

In most cases, however# the exposure has occurred from swallowing lead compounds.

As to the role of lead poisoning or lead absorption is relation to the so-called degenerative diseases of middle and later life, opinion differs.

In most cases however# the exposure has occurred from swallowing lead compounds.

Tetraethyl Lead . 0010633

Lead Pipe......................................

STANDARD FOR HARD LEAD CLOSET FLOOR FLANGES The Committee confirmed its approval by letter bal lot of the Lead Industries Standard for Hard Lead Closet Floor Flanges, as follows: LEAD INDUSTRIES ASSOCIATION STANDARD FOR HARD LEAD CLOSET FLOOR FLANGES Hard lead closet floor flanges shall be composed of lead alloyed with between 7.75 and 8.25 per cent antimony by weight.

Moreover we have shown vhat was never previously known or recognized, that'-lead excretion in the urine vis closely related quantitatively to the rate of current lead absorption and that the rate of urinary lead excretion could be used as the measure of lead exposure in industry as veil as the lead absorbed under conditions of exposure from any source.

STANDARD FOR HARD LEAD CLOSET FLOOR FLANGES The Committee confirmed its approval by letter bal lot of the Lead Industries Standard for Hard Lead Closet Floor Flanges, as follows: ' LEAD INDUSTRIES ASSOCIATION STANDARD FOR HARD LEAD CLOSET FLOOR FLANGES Hard lead closet floor flanges shall be composed of lead alloyed with between 7.75 and 8.25 per cent antimony by weight.

Joseph Lead Co.

dry white lead?

Joseph Lead Co.

Lead Pipe......................................

-White Lead White Lead Department, last Chieago, Ind.