15 hearing conservation

8/16/2019 15 Hearing Conservation

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29 CFR 1910.95

السمع

القوى

الحفظ

برنج


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What is Sound?What is Sound? الص الص م ه م ه

•Sound is w!" w# #!$ !ndSound is w!" w# #!$ !ndis %$odud '( )i'$!"in*is %$odud '( )i'$!"in*o'+#&"s !nd $#!&#s "#o'+#&"s !nd $#!&#s "#

,is"#n#$-s #!$s !s w!)#s in "#,is"#n#$-s #!$s !s w!)#s in "#!i$ o$ o"#$ .#di!/!i$ o$ o"#$ .#di!/•0#n !n o'+#&" )i'$!"#s i"0#n !n o'+#&" )i'$!"#s i"&!us#s s,i*" &!n*#s in !i$&!us#s s,i*" &!n*#s in !i$

%$#ssu$#/ 1#s# !i$ %$#ssu$#%$#ssu$#/ 1#s# !i$ %$#ssu$#&!n*#s "$!)#, !s w!)#s&!n*#s "$!)#, !s w!)#s"$ou* "# !i$ !nd %$odu"$ou* "# !i$ !nd %$odusound/sound/

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10/1/99 3

R رح7< I; E

T لا UTV 67J< W X

الع < TV اوب T لا KY Z7< I;

R رح

7< I; E 2اوJ لا KLM N [A و ر

L@ HI ح

< \ ] ل

T لا UTV اP8 R رح7< واPD8E 2ا

J لا KLM N

V ر L@ ^ ح

لو Qا2 > T لا UTV و =/

>


4/33

4

What is Noise?What is Noise?

ر

b = وا

c4ا

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a ال

ر b = اوc4ا 8 2M و

a لا

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و

bالمر

J ب و

bرملاe#$"f gefhe#$"f

gefh

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8E 6@ ر J لا XI` وب j ق


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5

FrequencyFrequency

eu.!ns &!n "(%i&!,,( #!$eu.!ns &!n "(%i&!,,( #!$'#"w##n lm lmmmm ef'#"w##n lm lmmmm ef

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6/33

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KLM

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L> ل

را

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E رz XIÈ { مع7V9 Z@ I

KLMال JواN 2ق

N ر L7 لا = اIÈ Eن |را ل


7/3310/1/99 7

Common SoundsCommon Sounds

0 dB Threshold of Hearing30 dB Soft Whisper

40 dB !iet "ffi#e

$0 dB %on&ersational Spee#h

'0 dB (er) nois) resta!rant

*0 dB S!+,a)

--0 dB Wood,or.ing

-/0 dB H)dra!li# press-40 dB Threshold of ain 1 2et plane

-'0 dB o#.et


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How do we Hear?How do we Hear?

ll85ا CF4ال 7 @ AQ ق Kو = Aال


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How does the Safety PersonHow does the Safety Person

determine noise levelsdetermine noise levelsSound level meter Sound level meter – Ž#"#$.in# "#Ž#"#$.in# "#,oudn#ss gd}h oƒ,oudn#ss gd}h oƒnois# !" !n( *i)#nnois# !" !n( *i)#n

.o.#n".o.#n" 2

M و

a ال

j

Š Z7


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What does OSHA say?What does OSHA say?

’" “ d} g$/ 10’h g’&"ion ,#)#,h’" “ d} g$/ 10’h g’&"ion ,#)#,h 2

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Hearing Conservation ProgramHearing Conservation Program


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Hearing Conservation ProgramHearing Conservation Program

•~ الفح

Eبع

7 الم

~ الفح

Eبع

7 الم

Aم _• N 2M وa ل = V Š 2ارA– ب ? معلا [` c \ وق


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7Nرا =• Z7< \ و لا {‹Y 2M وa ل — رع7 لنوD< I; = ار7N Z7< \ و لا {‹Y 2M وa ل — رع7 لنوD< I; Z7< g ف 7 J ب 2M وa لا = V Š C وD@ ^ حب ف 7NhZ7< gر @ : kz Eر 7 J ب 2M وa لا = V Š C وD@ ^ حب 7Nhر @ : kz Eر

/J; ى4 ر الفر ى ل šال 7™˜ E مz ار7 لا ر 4ى ` /J; س ال 7™˜ ر الفر ى ل šال 7™˜ E مz ار7 لا ر ̀س ال 7™˜ •~ل7 لا وح; لا O لF س̀ Z7


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žŸ!.%,#~žŸ!.%,#~

‡‡m d'’ m/l“ ou$s‡‡m d'’ m/l“ ou$s

‡mm d'’ m/“ ou$s‡mm d'’ m/“ ou$smm d'’ ‡/“ eou$sd'’ ‡/“ eou$s

¡g#h • gm/l“m/“h œ¡g#h • gm/l“m/“h œgm/“lhœg‡/“¢hgm/“lhœg‡/“¢h

¡g#h•m/“œm/l“œm/l“¡g#h•m/“œm/l“œm/l“

¡g#h • ‡¡g#h • ‡

Sin ¡g#h do#s no" #Ÿ#dSin ¡g#h do#s no" #Ÿ#d

uni"( g‡h "# #Ÿ%osu$#uni"( g‡h "# #Ÿ%osu$#,i.i" is "# yž†,i.i" is "# yž†%#$.issi',# ,i.i"s%#$.issi',# ,i.i"s

Žu$!"ion y#$Ž!( eou$s

Sound †#)#,d}’

“¢ l

ˆ “

t £

l ‡mm

‡¤ ‡ml

‡ ‡m“

¥ ‡m£

¤ ‡‡m

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Audiometric esting Audiometric esting

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السمع

XQI بلق

r

Y

‰ ح

N 2را

A9 Z7


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!aseline Audiograms!aseline Audiograms•

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ا

الفح

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"#am$le !aseline Audiogram"#am$le !aseline Audiogram

125 250 500 1K 2K 3K 4K 6K 8K

10

0

10

20

30

40

50

Baseline Audiogram

(The initial audiogram

taken by orker hen!irst em"loyed#$


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ControlControl

• 1# s"!nd!$d s"!"#s "!" iƒ "# “ d} yž†1# s"!nd!$d s"!"#s "!" iƒ "# “ d} yž†is '#in* #Ÿ#d#d ƒ#!si',#is '#in* #Ÿ#d#d ƒ#!si',#!d.inis"$!"i)# o$ #n*in##$in* &on"$o,s!d.inis"$!"i)# o$ #n*in##$in* &on"$o,s

s!,, '# u"i,if#d/s!,, '# u"i,if#d/• ®ƒ ƒ!i,s yyž s!,, '# %$o)id#d !nd us#d®ƒ ƒ!i,s yyž s!,, '# %$o)id#d !nd us#d

"o $#du sound ,#)#,s/"o $#du sound ,#)#,s/

Ad i i i C lAd i i t ti C t l


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Administrative Controls Administrative Controls

¯ ’$# d#ƒin#d !s #"ods oƒ &on"$o,,in*¯ ’$# d#ƒin#d !s #"ods oƒ &on"$o,,in*#.%,o(## #Ÿ%osu$#s '( +o' $o"!"ion#.%,o(## #Ÿ%osu$#s '( +o' $o"!"ionwo$‘ !ssi*n.#n" o$ "i.# %#$iods !w!(wo$‘ !ssi*n.#n" o$ "i.# %#$iods !w!(

ƒ$o. "# !f!$ds/ƒ$o. "# !f!$ds/


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"ngineering Control"ngineering Control

• ’$# d#ƒin#d !s #"ods oƒ &on"$o,,in*’$# d#ƒin#d !s #"ods oƒ &on"$o,,in*#.%,o(## #Ÿ%osu$#s '( .odiƒ(in* "##.%,o(## #Ÿ%osu$#s '( .odiƒ(in* "#sou$ o$ $#du&in* "# …u!n"i"( oƒsou$ o$ $#du&in* "# …u!n"i"( oƒ

&on"!.in!n"s $#,#!s#d in"o "# wo$‘$oo.&on"!.in!n"s $#,#!s#d in"o "# wo$‘$oo.#n)i$on.#n"/#n)i$on.#n"/

• žŸ!.%,#~ ins"!,,in* nois# q !'so$'in*žŸ!.%,#~ ins"!,,in* nois# q !'so$'in*

!&ous"i&!, ƒo!. o$ '!ƒƒ,#s "o &!%"u$# !nd!&ous"i&!, ƒo!. o$ '!ƒƒ,#s "o &!%"u$# !ndd#!d#n $#)#$'#$!"in* nois#/d#!d#n $#)#$'#$!"in* nois#/


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Hearing ProtectorsHearing Protectors

• e#!$in* %$o"#&"o$s s!,, '# .!d#e#!$in* %$o"#&"o$s s!,, '# .!d#!)!i,!',# !nd s!,, '# wo$n '( !,,!)!i,!',# !nd s!,, '# wo$n '( !,,#.%,o(##s #Ÿ%os#d "o !n ou$ 10’ oƒ#.%,o(##s #Ÿ%os#d "o !n ou$ 10’ oƒ

“ d}’ o$ *$#!"#$s/“ d}’ o$ *$#!"#$s/• 1(%#s oƒ #!$in* %$o"#&"o$s~1(%#s oƒ #!$in* %$o"#&"o$s~

• ž!$ .uƒƒsž!$ .uƒƒs

• ž!$ %,u*sž!$ %,u*s

• ž!$ &!n!,ž!$ &!n!,


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ž!$.uƒƒs ž!$%,u*s °!n!, °!%s

žŸ!.%,#s oƒ e#!$in* y$o"#&"o$sžŸ!.%,#s oƒ e#!$in* y$o"#&"o$s


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Hearing ProtectionHearing Protection

”‚‚ ”‚‚ ”ois# $#du&"ion $!"in* ”ois# $#du&"ion $!"in* – žŸ%$#ss l“ ”‚‚ žŸ%$#ss l“ ”‚‚ – °,!ssi& l ”‚‚ °,!ssi& l ”‚‚

– !Ÿ †i"# tm ”‚‚ !Ÿ †i"# tm ”‚‚

!) *)%!) *)% Su'"$!&" "# ”‚‚ ƒ$o. "#Su'"$!&" "# ”‚‚ ƒ$o. "#nois# ,#)#,nois# ,#)#, – &R)*+&R)*+ g‡m d} l“ ”‚‚ • ˆ d}hg‡m d} l“ ”‚‚ • ˆ d}h

±ou .us" us# "#±ou .us" us# "# #S,et- Ftor(#S,et- Ftor(


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Safety FactorSafety Factor

²Se’ s!(s "# #!$in* %$o"#&"ion is²Se’ s!(s "# #!$in* %$o"#&"ion isd#si*n#d "o $#du "# nois# '( "#d#si*n#d "o $#du "# nois# '( "#”‚‚ 'u" "!" is un,i‘#,( "o !%%#n”‚‚ 'u" "!" is un,i‘#,( "o !%%#ndu# "o ~du# "o ~

– †#!‘s in "# s#!,†#!‘s in "# s#!, – ³i'$!"ion³i'$!"ion – ®.%$o%#$ ins#$"ion®.%$o%#$ ins#$"ion

*RR 7*RR 7


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"#am$le of N%% Protection"#am$le of N%% Protection

1# nois# !" ! ,!$*# &o.%$#sso$ is1# nois# !" ! ,!$*# &o.%$#sso$ is109 d109 d

±ou !$# w#!$in* "# žŸ%$#ss %,u*s wi"±ou !$# w#!$in* "# žŸ%$#ss %,u*s wi"!n!n *RR o, 25 *RR o, 25

Žo (ou !)# #nou* %$o"#&"ion "o %,!Žo (ou !)# #nou* %$o"#&"ion "o %,!(ou '#,ow m d} ,#)#,´(ou '#,ow m d} ,#)#,´


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raining & %ecord'ee$ingraining & %ecord'ee$ing

• ž.%,o(##s "$!inin* is )#$( i.%o$"!n"/ ’,,ž.%,o(##s "$!inin* is )#$( i.%o$"!n"/ ’,,#.%,o(##s #Ÿ%os#d "o nois# !" ! 10’ oƒ#.%,o(##s #Ÿ%os#d "o nois# !" ! 10’ oƒ“ d}’ o$ *$#!"#$ s!,, %!$"i&i%!"# in !“ d}’ o$ *$#!"#$ s!,, %!$"i&i%!"# in !

#!$in* &ons#$)!"ion "$!inin* %$o*$!./#!$in* &ons#$)!"ion "$!inin* %$o*$!./• ’n !&&u$!"# $#&o$ds s!,, .!in"!in#d oƒ’n !&&u$!"# $#&o$ds s!,, .!in"!in#d oƒ

!,, #.%,o(## #Ÿ%osu$# .#!su$#.#n"s/!,, #.%,o(## #Ÿ%osu$# .#!su$#.#n"s/

15 hearing conservation

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