Document 6b2rvpB2KBkMYDxwQobDxEg9R

.-o rtd /.p AMERICAN SOCIETY f o r TESTING a n d MATERIALS COMMITTEE D-22 ON METHODS OF ATMOSPHERIC SAMPLING AND ANALYSIS Organized in 2951 CHAIRMAN: P. M. GIEVER, INSTITUTE OF INDUSTRIAL HEALTH. ROOM 1620. SCHOOL OF PUBLIC HEALTH. UNIVERSITY OF MICHIGAN, ANN ARBOR. MICH. 43104 Vic e -Ch a ir ma n : B. T. H. LEVADIE. d iv is io n o f in d u s t r ia l h y g ie n e , STATE OF VERMONT DEPARTMENT OF HEALTH. BOX 333. BARRE, VT. OS641 SECRETARY: S. F. ETRIS, ASTM. 1916 RACE ST., PHILADELPHIA, PA. 19103 Address reply to --> Industrial Hygiene Division P.0. Box 607 Sarre, Vermont October 18, 1367 Mr. Samuel F. Etrls AST&M 1316 Race St. Philadelphia, Pa. 19103 Dear Sam: On receiving the Z 37 11A32 Draft of the proposed USAS I standard for lead and certain inorganic compounds l had thoughts chuut the acceptable concentration of lead chromate which is being recode need. It seemed much too high, in spite of the so-called iosoiubil i try or t n; s salt in aqueous solution. I spoke to Dr. Stoklnger about it and he could give me no justifIcatlon for this level, stating, however, that he thought this chromate was quite insoluble. My question regarding Its solubility In lung fluids was unanswered. 1 wrote to Dr. Kehoe to Met morns information. His letter of reply Is definitive so far as 1 cm conccrr.se. Until there Is presented justification for the iuvei of C.h mi 111 grams of lead chromate In one cubic meter of air I cannot support this as r.n acceptable concentration. Cordially, 3L;lmb cc:Glever Henry Lamb Stoklnger Dr. Kehoe Ben Levadle Vice-Chairman i) 2 N13932 He 001218b