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Benzene
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7/18/2019 7-2011 Benzene Awareness PPt
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North SlopeTraining Cooperative
North Slope Training Cooperativerevised 2011. All rights reserved.
Benzene Awareness
NSTC-19
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Name
Compan& and'or position
()perien*e related to wor+ing in areas where thereis the possi ilit& o, enzene e)posure.
lntrodu*tions
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(mergen*& ro*edures
/estrooms'Brea+s'Smo+ing
Sa,et& inute
Administration and
Sa,et&
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To provide emplo&ees with the +nowledge to re*ognizea enzene e)posure hazard and the appropriate *ontrol
measures in areas where there are materials that*ontain enzene.
oal
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4es*ri e the *hara*teristi*s o, enzene
4es*ri e the health e,,e*ts ,rom enzene e)posure
5denti,& potential lo*ations where enzene ma& e,ound
/e*ognize and des*ri e the *ontrol measures and( that will prote*t against enzene e)posure
4es*ri e emplo&er and emplo&ee responsi ilities,or prote*ting against the hazards o, enzenee)posure
$ 6e*tives
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Standards and Terms
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Benzene is regulated & $S9A under 2# C:/1#10.1028.
$perators on the North Slope have *ompan&standards whi*h meet or e)*eed the $S9Astandard.
Benzene Standards
29 CFR 1910.1028 (b )
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Benzene is a li;ue,ied or gaseous *hemi*al withthe ,ormula C 3 9 3 .
A regulated area is an& area where air orne*on*entrations o, enzene e)*eed permissi lee)posure limits < (=>.
An authorized person is an& person spe*i,i*all&authorized & the emplo&er whose duties re;uirethe person to enter a regulated area where
enzene ma& e present.
Benzene Terms
29 CFR 1910.10 28 (b )
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Employee exposure is the e)posure to air orneenzene whi*h would o**ur i, the emplo&ee were
not using respirator& prote*tive e;uipment.
Action level is an air orne *on*entration o,enzene o, 0. ppm *al*ulated as an 8 hr. time"
weighted average .
Site specific requirements ,or e)posure limits anda*tion levels ma& e more stringent at somelo*ations.
()posure Terms
29 CFR 1910.10 28 (b)
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?hat 5s Benzene@
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Simplest mem er o, aromati* h&dro*ar ons.
ole*ular stru*ture! 3 *ar on atoms and 3h&drogen atoms.
:ormula! C 3 9 3
9&dro*ar on mole*ule with alternating single anddou le onds.
Benzene ole*ule
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Colorless to light &ellow when in the li;uid state has apleasant sweet odor
To)i* as a li;uid or gas not solu le in water $dor does not provide ade;uate warning o, its hazard
apor is heavier than air and ma& spread longdistan*es to some distant sour*e o, ignition
()tremel& ,lamma le ,lash point! 12 :.Solid elow -2 :.
/ea*ts vigorousl& with o)idizing materials
Benzene Chara*teristi*s
29 CFR 1910.10 28 , Appendix
A, I
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Crude oil
N =s
arious gas streams
4egreasing produ*ts
rodu*ed water
Automotive sour*es
Adhesive *oatings and paint
?here Benzene is
:ound on North Slope
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rodu*tion and trans,er operations emplo&ees
Camp maintenan*e and *ustodial sta,,
Tan+ and pipeline *leaners
(le*tri*ians plum ers and 9 AC te*hni*ians
?or+ers ?ho a&
Be at /is+
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9ealth (,,e*ts
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5nhalation
5ngestion
A sorption
5n6e*tion
9ow Benzene
(nters the Bod&
29 CFR 1910.10 28 , Appendix A, I
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4rowsiness
4izziness and heada*hes
S+in irritation and dermatitis
Nausea and a ,eeling o, into)i*ation
ertigo and delirium
Convulsions and loss o, *ons*iousness
4eath ma& o**ur at *on*entrations e;ual to orgreater than 10 000 ppm.
A*ute 9ealth (,,e*ts
29 CFR 1910.10 28 Appendix A , II
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Car*inogeni* a,,e*ts the lood"ma+ing tissues o,the od& to in*lude one marrow a normalities
anemia and other lood *ell a normalitiesCan *ause leu+emia multiple m&eloma andsu se;uent death in wor+ers who are e)posed to
enzene ,or e)tended periods o, time
Chroni* 9ealth (,,e*ts
29 CFR 1910.10 28 Appendix A , II
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9azard 4ete*tion andControl
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Sometimes enzene *an e dete*ted & itsodor ut it is not a relia le
indi*ator.easurements should e o tained & usingenzene dete*ting adges *har*oal tu es
and gas *hromatographs.
Benzene 4ete*tion
Benzene Gas e!e"!#$
Gas %T&be'e!e"!#$ i! *and
+& p
Gas %C ip'e!e"!#$
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ermissi le ()posure =imit < (=> is 1.0 ppm ,or an8 hour da& and 0.37 ,or a 12 hour da&
Short Term ()posure =imit is .0 ppm ,oran& 1 minute period during the da& with 30minutes etween e)posures and no more than -e)posures in an 8 hour da&.
The A*tion =evel is 0. ppm ,or an 8 hour da&.
Compan& standards ma& e more stringent thanthe $S9A standard < e.g. B Alas+a a*tion level is0.%>
$S9A ()posure =imits
29 CFR 1910.10 28 (b-")
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ersonal en*losure
Control o, pro*ess *onditions
e*hani*al ventilation
/emote or automated operation
=ea+ dete*tion and repair s&stems
(ngineering Controls
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S4S
Signs and properl& la eled *ontainers
eriodi* monitoring and noti,i*ation o, emplo&eesa out e)posure levels
=imiting e)posure to the *hemi*al
:ollowing *ompan& rules and poli*ies
Training
Administrative Controls
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Signs shall e posted at the entran*e to regulated areas
4AN (/
B(NF(N(
CANC(/ 9AFA/4
:=A AB=( E N$ S $G5N
AHT9$/5F(4 (/S$NN(= $N=I/(S 5/AT$/ /(JH5/(4
Signs
29 CFR 1910.10 28 ( ) (1)
(i)
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Benzene *ontainers shall e properl&la eled
There is no re;uirement to la el pipes.
=a els
29 CFR 1910.10 28 ( ) (1) (ii)
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/espirator& rote*tion
Air puri,&ing hal, mas+ to 3.7 ppm
Air puri,&ing ,ull ,a*e mas+ to %% ppm
SCBA or supplied air w'es*ape pa*+ a ove %% ppm
(&e ' S+in rote*tion
Chemi*al sa,et& goggles
:a*e shield
Nitrile gloves ,or *rude oil K viton ,or N =s
Aprons prote*tive *lothing and ,ootwear
ersonal rote*tive
(;uipment
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Call ,or help.
5, e&es or s+in are e)posed immediatel& ,lush withlarge amounts o, water ,or 1 minutes.Clothing should e *hanged i, it e*omes enzenesaturated.
5, the vi*tim has inhaled enzene and is not
reathing a ;uali,ied person should give C /.5n all *ases get medi*al attention.
:irst Aid
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Complian*e rogram
2#
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5, e)posures are over the (= the emplo&er mustesta lish and implement a written *omplian*e
program to in*lude! A s*hedule ,or development and implementation o,engineering *ontrols and wor+ pra*ti*es.
5nitial and periodi* monitoring.
(mplo&ee noti,i*ation o, monitoring results.
edi*al surveillan*e program.
5n,ormation and training a out enzene at the time o, theinitial wor+ assignment.
/espirator& prote*tion training.
(mplo&er
/esponsi ilities
29 CFR 1910.10 28 ( ) ((1) (ii)
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/ead and ,ollow pro*edures ,or the re*ognition and
*ontrol o, enzene.itigate re*ognized hazards.
Hse the proper ( when entering a regulated area.
/eport an& emergen*ies.
(mplo&ee
/esponsi ilities
29 CFR 1910.10 28 ( ) ((1) (ii)
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