Document mp7Mm1n3RBYQ8RKoBLoK7xL4Q

FILE NAME: Talc (TALC) DATE: 1971 Sept 22 DOC#: TALC427 DOCUMENT DESCRIPTION: Letter to American Conference of Govt Industrial Hygienists from Desert Minerals, Inc. y Jr* nr,t M _ m\ I'm* ' J** m JC J ' |SRMi $ P 2 2 1971 ns? HON September 22, 1971 Mr. Herbert E, Stokinger, Ph.D. Chairman,- TLV Committee American Conference of Governmental 1014 Broadway Cincinnati, Ohio 45202 Induetrial ' Hygienists ,Dear:.Mri. Stokin&ers . ; -, v.v Thunk you for your letter of September 15, 1971, and for the booklets which you enclosed. ' .... ' In regard to the third paragraph of your letter and in reference to Page 16 of your booklet on Threshold Limit Values for 1970, the two designations on'italc which you show will require interpretation before it is possible to accurately classify the various types of talc now on the market in accordance with present or proposed TLVs* Will you please, therefore, define for us mineralogically the two classifications of talc, non-asbestlform and talc, iibrous7 Thanking you, wa remain : Yours very truly, DESERT MINERALS, Inc. JEll^rtHkJb ; President X.u .t.O ' CRMC-HT-TALC-000138