Belte r r a Cor p or at ion S afety M an ual D oc I D C H S M BE L 2 0 1 7 Pa g e 1 97 of 53 8 Thr e shol d L im it Va lu e T L V The li mi ti ng temp e ra tur e to which it i s be li e ve d that ne a rl y a ll wor k e rs ma y be re pe a t e dl y e x pose d da y a fte r d a y without ha rmf u l ef fe c t He a t S tre ss H y p e rthe rmi a Unusua ll y hig h bod y t e mper a tur e that re sult s w he n the bod y s re g ulatin g mec ha nism s a re in a de qu a te to dis pose of int e rna ll y ge n e ra t e d a nd e x ter na l l y suppl ied he a t H umi de x The mea sure o f pe rc e ived he a t t he bod y fe e ls due to t e mpe ra tur e a nd humi dit y R e sponsi bil it ies Ma na g e ment will e nsur e that whe ne ve r pr a c ti c a b le a ll e ff orts a re mad e to li mi t e x posure to ex tre m e ther mal ha z a rds W he re e nviron menta l contr ols ar e not p ossi ble ma na ge ment will moni tor a c ti vit ies a nd maintain c ompl ianc e with t his ele ment B e fo re wo rking in e x tre me w e a the r c ondit ions mana g e ment will e nsur e wor ke rs a re inst ruc t e d in t he rma l ha z a rd proc e dure s includ ing P rope r c lot hing a nd e qui pment Guide li ne s for e a ti ng a nd drinking R isk fa c tors that incr e a se the he a lt h e f fe c ts of c old hea t e x posure How to re c o g niz e si g ns a nd s y mpt oms o f h y pothe rmia h y pe rthe rmia Guide li ne s I t shou ld be no ted th a t t he bod y will ph y siol o g ica l l y a d a pt due to cha n ge s in cli mate or e nvironmen t Ac c li matiz a ti on u sua ll y oc c urs a fte r 7 to 10 c ons e c uti ve da y s of e x posure The T L V s in t his ele me nt ar e a d a pted f rom the T hre shol d L imit Value s fo r C he mic al and Phy sic al Age nts an d Biol ogical Ex posure I ndice s Ame ri c a n C onfe re n c e of G ov e rnme ntal I ndu strial H y gienist sA C G I H Doc u m e n t Identif icat ion S E L 024 P age Nu m b e r 2 of 5 Doc u m e n t C r e ation Dat e J a nua r y 1 2013 Im p le m e n tat ion Dat e J a nua r y 1 2013 W he n obse rving temp e ra ture s out doors w ind c hil l shou ld be c onsi de re d a fa c tor f o r pote nti a l ef fe c t on e x pose d ski n s ee ch ar t Ac tual Te mpe ra ture R e a ding C Esti mate d W ind S pe e d K MH 10 4 1 7 12 18 23 29 34 40 46 51 Equiva lent C hil l Te mper a ture C C a lm 10 4 1 7 12 18 23 29 34 40 46 51 8 9 3 3 9 14 21 26 32 38 44 49 56 16 4 2 9 16 23 31 36 43 50 57 64 71 24 2 6 13 21 28 36 43 50 58 65 73 80 32 0 8 16 23 32 39 47 55 63 71 79 85 40 1 9 18 26 34 42 51 59 67 76 83 92