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 4 92 of 53 8 C ON F I N ED S P A C E M ON I T OR I N G A N D EN T R Y EXI T L OG Doc u m e n t Identif icat ion F R M 029 P age Nu m b e r 1 of 1 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 Ma y b e use d in conjunc ti on with C onfine d S pa c e Entr y P e rmit Da te Na me of S a f e t y W a tch W ork Or de r Na me of Entr y S upe rvisor Atmos phe ric Te sti n g T y pe o f Monitor L a st C a li br a ted P e rmiss ibl e leve ls 195 23 25 20 Me thane 10 L oc a ti on Time of Ox y ge n C a rbon Monox ide ppm of L ow e r Ex plosi ve L im it H y d ro g e n S ulpf ide ppm I nit ials Entr y Ex it of A uthoriz e d Entra nts Na me Time in Time O ut Time in Time O ut Time in Time O ut