In the study of the lead excretion, therefore, one- has the means of determining the present magnitude of the exposure,aa revealed by the lead in the fece3, as well as the general exposure over a considerable period of time, as demonstrated by the urinary lead excre tion and the blood lead content.

>4 15 ^.i^^^White Lead

One might assume that regardless of the percentage of organic lead the same order of hazard would exist provided of course a sufficient total amount of organic lead were present to saturate the air in the tank with vapor and It is true that regardless of the amount of organic lead in sludge, amounts of lead are found in the air above it.

bt lead.

The painter, from a White-lead--Lead Mixing Oil............... 1420 sq. ft.

Lewis - (2) - July 15, 19*K> experiments however, indicate that the amounts of lead in the air above sludges that contain organic lead are in general directly proportionate to the percentage of organic lead in the 3ludge.

The technical description on pages Id and 17 explains how lead, acted upon by electricity and chemicals, is turned into lead carbonate or white lead.

First, let me point out that we have no information which would lead us to believe that the handling of leaded gasoline repre sents any lead hazard so long as the lead content of the gaso line is held within the limits of the commercial concentrations.

As X had good reason to anticipate, the results demonstrate the presence of only negligible quan tities of tetraethyl lead and of organic lead compounds that are converted to tetraethyl lead under the conditions of steam distillation.

As I had good reason to anticipate, the results demonstrate the presence of only negligible quan tities of tetraethyl lead and of organic lead compounds that are converted to tetraethyl lead under the conditions of steam distillation

The painter, from a White-lead--Lead Mixing Oil............... 1420 sq. ft.

In other words, if the gasoline is completely removed, the lead will also be removed.

It may replace the basic sulfate white lead content of multiple pigment paints, whether the basic lead sulfate is present as such or as a component of leaded zinc oxide.

"National Lead Company At/ern. tmtlttn rtfntn *>/. lead. tine and other ore*.

Lead.