Document bO551q7R2X476JwKJX68yRKjO

FILE NAME Talc TALC DATE 1971 Sept 22 DOC TALC427 DOCUMENT DESCRIPTION Letter to American Conference of Govt Industrial Hygienists from Desert Minerals Inc. NSI NBY JEG{ YUG SRM <a SRM SEP 2 1971 DBT | RON YLYLN N be ae September 22 1971 Stokinger E. Mr. Herbert E. Ph.D. Ph.D. , Chairman TLV Committee American Conference of Governmental Industrial Hygienista 1014 Broadway Cincinnati Ohio 45202 | DearMr. Stokinger September 15 1971 the booklets Thank you foryour letter of and for . ; ^' a which you enclosed : to In regard the thirdparagraph of your letter and in referenceto ee to -, Page 16 of your booklet Threshold |Limit Values for1970two designations on talc which youshow will requireinterpretation before it it is possible to accurately classify the various types of talc now on the marketin accordance with present orproposed TLVB ere ae Will you please, therefore define for us mineralogicallythe two classifications classificationsof taleasbestiform asbestiform andi talcfibrous Thanking you we : remain Yo veru y trur ly s EJEllwartEJlwahrthikjb iEJEkllwajrthibkjb President