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 3 09 of 53 8 I n a blasti ng c ha mbe r the ve nti lation and e x ha ust s y s tem a s w e ll a s the f il te r s y stem shoul d be inspec ted r e g ul a rl y I n o rde r to r e duc e the po ssi bil it y of sta ti c e lec tric i t y discha r g e s a ll hose li n e s shou ld be manuf a c tur e d fr om a n a p prove d rub be r a nti static mate ria l B last ope r a tors a nd a ssi st a nts m ust we a r Per son a l P rote c ti ve Equipm e nt wh e ne ve r p e rf o rming blast wor k R e spira tors shoul d be c h e c ke d rou ti ne l y to ensu re sa fe a nd e ff e c ti ve op e ra t ion All manua l abr a sive bl a sti ng unit s shoul d be e quip pe d with pos it ive a bra siv e shut off or de a d man c ontrols which c a nn ot be a c ti va ted b y drop pi ng the noz z le or hose The a ir pr e ssure shoul d n ot ex c e e d the ma nufa c tur e r s spe c ific a ti ons 42 OT HE R S AF ETY H A ZA R DS S il ica dust pose s the most se rious ha z a rd the use of a bra sives c ontainin g sil ica shoul d be a voided whe re v e r possibl e W he ne ve r possibl e blast ing ope r a ti ons be in g c a rr ied out with a por table u nit shoul d be isol a ted fr om ot he r pe rsonne l i n the a re a B last c ha mb e rs sha ll be c lea ne d of d ust and wa ste mate ria l dail y to pre ve nt dust buil d up All sp e nt abr a sive me dia must be c a pture d a nd re moved to the a pprov e d d umpi ng sit e a s soon as possi ble a fte r bla sti n g op e ra ti ons a r e c ompl e ted COMPR E SSE D AND LIQ UI FI ED GA S Doc u m e n t Identif icat ion S W P 004 P age Nu m b e r 1 OF 2 Doc u m e n t 1 st C r e at e d Ma r 31 st 2017 Im p le m e n tat ion Dat e o n Re vised Doc u m e n t Apr il 15 th 2017