Document 7aQ40gMOBMq93Odwj7VQZ7Ng

FILE NAME: Talc (TALC) DATE: 1971 Sept 15 DOC#: TALC426 DOCUMENT DESCRIPTION: Letter to Desert Minerals, Inc. from American Conference of Govt Industrial Hygienists , . *.r.Ai*fffr> _ .... M.....(> . . . . . a# : ; ..j ;&A<...,r*-.r*t**'vf-c* ' - , (. ,i...'*.*>!***' v .' t ' r{-.; Vw ^ p m m N*1 y-r .<' F,wi.#W*yn* ' v;,.-;.iVi< w.inrt& , .i.K:`%*'*-**<*$!*** ` . **f,.#r*o**\ t . `' . i- < *X%\ftSt of g o vern m en ta l in dustrial HYGIENISTS September 15, 1971 ,-eatiK A h * i -. ' WyAv* ---r WS?`*/H t***;'<" 4f W*-'' t lA H U ft i r i f r ' *'* & ,,; * < ,<***,**>* *** + tliitftty;V* *h,i/*fr*f#$;*A<-/'***-** M*** iittyH'-fWf* -VIWMt W*>- `'* h+Mwn*l**^'*i**V*n*i<m"* .Uf/A}I'iAW<^*3$/#0**?tt**t*y*t*>.<>,**>- Mr. E. J. Ellsworth, President Do*rt Minerals, Inc. American Mineral Company ; . 1091 South Coast Highway . .Uguha Beach, California 92651 Dear Mr, Ellsworth: J f.< 0 c i I4 This is in response to your letter of September.8 in which you question whether the TLVs for the two different forms of TALC are now a part of the Rules and Regulations of the Department of Labor, as set form in the Federal Register, Volume 36, No, 157,! August 15, 197**. Reference to Tabl G-3 ~ Minral Dust, page IJlOU of;the.cited Federal Register volume, shows TREM0L1TE with a standard of 5 million particles per cubic foot and talc to be 20 mppef. This is 'not in conformity with the . , recommended values, of the TLV:1Committee as set forth in the TLVs for 1970, 1 In which the TLV for fibrous talc is pegged to the asbestos limit, which j hasVowlbem^^^ greater, than 5 microns.in J. length. ;- : 1. ..' : '. . ' In regard to which standard is to bemused,.. foXiow _ the TLVs as provided in the booklet on the. TLVs^or_j^70_. We will cal1 s M i r s r n n ^ S S p S of Labor to this discrepancy with the reques t that they modify this And other discrepancies in conformity with the recom mandations of the TLV Committee. , As to the statua of the TLV Committee of the ACGIH, this body has se*ved for more than a quarter of a century as a purely recommendatory group. With the passage of the Occupational Health and Safety Act the Labor was ccd to set standards for Airborne Substances in Workplaces . n^d to re -*ate their compliance; thus the recommendations of the TLV Committee: when accepted by the Department of Labor Federal Register, now become enforceable standards. How the ^ I r a n S of has operated la described in the accompanying reprint, Threshold Limits Committee of ACGIH." I am also enclosing a: copy for I97O for your information;, .. " ` sincqpeiy W , - - : CRMC-HT-TALC-OOOlOf, ft!: ^ ' ' (!( TLV <.omn>, I<*'' V