Document KRJZrK1oBb6Oo0XzVJQpG3ZJx

National {faint. Barutah anti arqu*r Asaoriatian - ` mi n^~ a a M4kl Olt*i>NU itUM.m|| .MUs-,0-IU (OCMHI |||S.* -*et- IIHSC*Ii*Ma4Mti. JM *>s o *T| *ha* m a|| t| * r.9 nsBrtB > .* 11 s twk rp i|* s B'b h INeOW^on^ T c o laoo mmo o c laLANO *vc *w wrAiHiNorsin e e ieoa <01 4|| tin IC| ;cs-i k(A(M lfci _ '** %a-ag. Mrsk * 3.. IH at:,k t, ... ,` Itar e.t.I.ewa ^ August 5, 1971 c h ^i i i- .aw > IOK*,,lt*i *40a IUiIIM* .. BCw *** <w-**Bsi i *# srs.ti . * *" .............. "Mir* I have ju*t received a confidential copy of a papor by Dr. Barry King of tho U. S. Department of Public Health. In thit paper. Dr. King sets forth criteria for evaluating the lead hazard of painted surfaces. Dr. King develop! evidence to indicate that the quantity of load in pointed' turfacet with tingle and multiple layers of paint should not exceod 0.03 mg. Pb. par square centimeter. He also indicates that the doily permissable In take of lead for a child should not exceed 0.2 mg. of load per day from all seurees in addition to the lead impurities normally contained in his diet. On page 5, paragraph IV, Dr. Kehoo't work is referenced. I believe lead acetate was used os tho leod source In Kehoe't study. For many years, the paint industry hat geared its formulas and manufacturing processes to the production of coatings for children's toys and furniture, and to interior architectural points which contain lest than 1% lead (os metal) in the nen-volatile content (ANSI Standard Z66.1). It teems la me that any appreciable lowering of that standard tolerance far lead could lead to a definite hardbhip far the point industry. I would like your opinion on this point, alee. As you can tea, attempting to relate Dr. King's figures to a percent by weight standard for leod tolerance results in o very low lead level. With no control ever the total film thickness of multiple coats of point applied over a period of years. It could amount to almost a zero lead tolerance. 0007-SWP-036624 N21871 2- August 5, 1971 Will you please rood Dr. King's paper ond fond mo your comment* on the informotion which it presented oi you fool it relates to the manufacture of coatings. Government ogeneiet are under pressure from various consumer groups to lower the 1% lead standard. Please remember that this is confidential information. Thanks for your prompt reply to this request. Sincerely, RAB:km Enclosure Royal A. Brown Technical Director P.S. This letter Is being tent to a selected group of Paint Industry Technical Executives. R.A.B. 0007-SWP-036625 0007-SWP-000117942