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 91 of 53 8 Doc u m e n t Identif icat ion S E L 022 P age Nu m b e r 4 of 7 Doc u m e n t C r e ation Dat e Ma y 10 2011 Im p le m e n tat ion Dat e o n Re vised Doc u m e n t F e bru a r y 2 2016 4 N OIS E EX PO S U R E S T A N DA R D S 5 S E L E CTIO N OF HE A R ING PROTEC TIO N Noise induce d h e a rin g lo ss m a y be p re v e nted thr o ug h the e ff e c ti ve use o f a pprop ria te he a rin g prote c ti on He a rin g prote c ti on mus t protec t a g a ins t t he leve l of noise ha z a r d pro vide a c omfo rta ble fit a nd c ompl y with C S A St a n da rd Z 942 M1984 He aring Protec tors I t i s a lso i mporta nt t ha t wor ke rs r e c e ive a ppro pri a te tra ini n g prior to t he i nit ial use of he a rin g prot e c ti on The re a re two ge ne r a l ca t e g o rie s of he a rin g prote c ti on de vice s e a rmuf fs a nd e a rplu g s 51 Ea rmuf fs Ea rmuf fs a re e x ter na l he a ring p rote c ti on de vi c e s c onsi sti ng of a h e a dba nd a nd e a r c ups The e a r c up s a re c ushi one d a nd a re int e nd e d to fit snug l y a ga inst the side of the he a d The e a r c up mus t complete l y e nc irc le th e e a r in or de r t o pro vide a g ood se a l an d pro tec t t he inner e a r E a rmuf f f it c a n be c ompromi se d b y th e use of othe r sa f e t y e quipm e n t such a s g l a sses g o gg les a nd ha rd ha ts s o c a r e must be take n to ensur e a prop e r f it Ea rmuf fs must c o mpl y with C S A St a nda rd Z 942 M1984 Ea rmuf fs must be r e g ular l y inspec ted a nd maintai ne d in g ood c ondit ion Ea r c up c ushi ons whi c h a r e c ra c k e d ha rde ne d mus t b e re pla c e d Th e he a db a nd must maintain a de qua te tension a ga inst the e a r o r it must be re plac e d