Document aBwQKOG3GMJGjgKdQ5RyLK3OM

FILE NAME: RT Vanderbilt (RTV) DATE: 1971 Sept 22 DOC#: RTV157 DOCUMENT DESCRIPTION: Letter to American Conference of Govt Hygienists from Desert Minerals, Inc. RE TLVs for 1970 September 22, 1971 Mr. Herbert E* Stokinger, PhuD. Chairman,- TLV Committee American Conference of Governmental 1014 Broadway Cincinnati, Ohio 45202 induetrial Hygienists ,D e a r M r 1. Stokinger s Thank 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 o f ;your 'booklet on Threshold Limit Values for 1970, the two designations on 'stale;which you show will require interpretation before it ia 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 7/1/V classifications of talc, non-aabestlform and tale, fibrous? / Thanking you, wa remain i Yours very truly, DESERT MINERALS, Inc. EJEllw-wrth ikjb President Tt >'t .1 t.u ,. / n. CRMC-HT-TALC-000138