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# OAR Box 1500 Prepped by Ollie Stewart



## Document

Number: 

# 55 ) ll-C-8 1 Docket Number: 

# A-94-5 2

Printed 8/5/20081:51:29PM

Sheet 55of 343P. 2 Novembe r

20 , 199 7 

## ll-C-6 1 UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y Offic e of Ai r Quality Plannin g an d Standard s Emissio n Standard s Divisio n Coating s an d Consume r Product s Gro^i p Researc h Triangl e Park , N C 2771 1 

## FACSIMIL E COVE R SHEE T Please Prin t i n Blac k

In k Onl y T O 

## Mar k

Naylo r OFFIC E Ake r Plastic s FRO M Madelein e Stru m TELEPHON E # 30 4 26 3 252 5 FA XPHON E # 30 4 26 3 836 9 TELEPHON E # 91 9 54 1 238 3 FA X 568 9 SUBJECTTes t Metho d fo r verificatio n o f a tota l enclosure COMMENT S Whil e th e serie s o f variou s capture efficienc y method s i s abou t 4 0 pages , th e verificatio n o f th e Permanen t Total Enclosure (PTE ) i s jus t 1 page . A PT E verifie d by thi s metho d woul d allo wth e facility t o clai m 100 % capture . Otherwise , th e on e o r more o f th e othe r method s woul d nee d t o be use d t o measure th e captur e efficiency . Thes e involv e a t leas t th e constructio n o f a temporary tota l enclosure an d th e measuremen t of VO C concentration s a t on e o r more exhaust s t o th e enclosure . Do yo u thin k

yo u coul d ru n throug h th e criteri a an d sen d m e a fa x a s t o whethe r o r no t th e emission s fro m you r resi n operation s (spray , roll , cure ) coul d be considere d capture d t o 100 % base d o n th e criteri a of Metho d 204 ? Coul d yo u mak e an y presumption s abou t th e ge l coa t operation s (spray , cure) ? I coul d use th e informatio n fro m th e permi t t o documen t th e contro l devic e efficienc y o f 90% . . Than k you , Madelein e 

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### 3250 2 Federa l Registe r/ Vol . 62 . No . 11 5 /

Monday , Jun e 16 . 199 7 / Rule s an dRegulation s P. 3



### if /- informatio n t o th e U.S . Senate , th e U.S . Hous e of Representative s an dth e Comptrolle r

Genera l o f

th e Genera l Accountin g Offic e prio r

t o publicatio n of th e rul e i n today' s Federa l Register . Thi s rul e i s no t

a"majo r rule " a s define db y 5 U.S.C . 804(2) . Listo f Subject s i n 4 0 CF

RPart5 1 Environmenta l protection , Administrativ e practic e an dprocedur e Ai r pollutio n control . Captur e efficiency , Carbo n monoxide , Intergovernmenta l relations , Lead , p t Nitroge n dioxide , Ozone , Particulat e matter . Printin g operations . Reportin g an drecordkeepin g requirements , Surfac e coatin g operations , Sulfu r oxides , Volatil e organi c compounds . Dated : Ma y 30 , 1997 . Carol M . Browner , Administrator. Fo r di e reason s se t

ou t i n th e preamble , Appendi x M of 4 0 CF RPar t 5 1 i s amende da s follows : 1 . Th e authorit y citatio n fo r par t 5 1 continue s t o rea da s follows : Authority : 42 U.S.C . 7410 . 2 . Appendi x M , Tabl e of Content s i s amende db y addin g seve n entrie s t o rea da s follows : Appendi x M t

o Par t51—Recommende d Tes tMethod s fo rState Implementatio n Plan s **** * Method204—Criteriafo

r andVerification o f aPermanen

t o r Temporar y Tota l Enclosure . Method204A—Volatil

e Organic Compound s Conten

t in LiquidInput

Stream . Method204B—Volatil

e Organi c Compound s Emission s i

n CapturedStream . Method204C—Volatil

e Organi c Compound s Emission s in Capture dStrea m (Dilution Technique) . Method204D—Volatil

e Organic Compound s Emission s i

n UncapturedStrea

m fro mTemporar

y Tota l Enclosure . Method204E—Volatil

e Organi c Compound s Emission s i

n UncapturedStrea

m fro mBuildin g Enclosure . Method204F—Volatil

e Organi c Compound s Conten

t i n LiquidInput

Strea m (Distillation Approach) . 1 * * * * * j 3 . B y addin g Metho d204 t o rea d v / follows : a s Metho d204—Criteri afor an d Verificatio n of

aPermanen t

o r Temporar y Tota l Enclosur e 1. Scope and

Application Thi s procedur e i s use dt o determin e whethe r apermanen t

or temporar y enclosur e meet s th e criteri afo r atota l enclosure . A n existin g buildin g ma y b e use da s atemporar y or

permanen t enclosur e a s lon g a s i t

meet s th e appropriat e criteri adescribe di n dii s

method . 2. Summary of

Method A n enclosur e i s evaluate dagains t a se t o f criteria . If

di e criteri aar e me t

an d i f al l th e exhaus t

gase s fro mdi e enclosur e ar e ducte dt o acontro l device , tiien th e volatil e organi c compound s (VOC) captur e efficienc y (CE ) i s assume dt o b e 10 0 percent , an dC Enee d no t b e measured . However , if par t of th e exhaus t ga s strea mi s no t

ducte dt o a contro l device , C

Emus t b e determined . 3. Definitions 3. 1 Natura l Draf

t Openin g (NDO) . An y permanen t

openin g i n th e enclosur e dia t

remain s ope n durin g operatio n ofth e facilit y an di s no t connecte dt o aduc t

i n whic hafan i s installed . 3 ?. Pfrmarrpn r

Tota l Enclosur e (PE) . A permanentl y instate denclosur e tha t completel y surround s asourc e of emission s suc hUia

t al l VO C emission s ar e capture dan dcontaine dfor discharg e t o acontro l devic^ T ~3T3 Temporar y Tota l Enclosur e (TTE) . A temporaril y installe denclosur e dia t completel y surround s asourc e o f emission s suc hdia t

al l VO C emission s dia t ar e no t directe ddiroug hth e contro l devic e (i.e . uncaptured ) ar e capture db y di e enclosur e an dcontaine dfo r discharg e diroug hduct s tha t allo w fo r di e accurat e measuremen t o f di e uncapture dVO C emissions . 3. 4 Buildin g Enclosur e (BE) . A n existin g buildin g dia t

i s use da s aTTE . 4. Safety A n evaluatio n o f

th e propose d buildin g material s an dth e desig n fo r di e enclosur e i s recommende dt o minimiz e an y potentia l hazards . 5. Criteria for

Temporary Total Enclosure 5. 1 An y ND O shal l b e a t leas t fou r equivalen t

openin g diameter s fro meac h VOC emittin g poin t

unles s otiierwis e specifie db y th e Administrator . 5. 2 An y exhaus t

poin t fro mth e enclosur e shal l b e a t

leas t fou r equivalen t

duc t o r hoo ddiameter s fro m eac hNDO . 5. 3 Th e tota l are ao f

al l NDO' s shal l no t excee d5 percen t

o f di e surfac e are a of di e enclosure' s fou r

walls , floor , an d ceiling . 5. 4 Th e averag e facia l velocit y (FV ) of ai r diroug hal l NDO' s shal l b e at leas t 3,60 0 m/h r

(20 0 fpm) . Th e directio n o f ai r flo w throug hal l NDO' s shal l b e int o di e enclosure . 5. 5 Al l acces s door s an dwindow s whos e area s ar e no t

include di n sectio n 5. 3 an dar e no t

include di n th e calculatio n i n sectio n 5. 4 shal l b e close d durin g routin e operatio n o f di e process . 6. Criteria for

a Permanent

Total Enclosure 6. 1 Sam e a s section s 5. 1 an d5. 3 diroug h5.5 . 6. 2 Al l VO C emission s mus t b e capture dan dcontaine dfo r discharg e diroug hacontro l device . 

## i t

7. Quality ( 7. 1 Th e succes s of

dii s medio dlie s i n designin g di e TTEt o simulat e di e condition s dia t

exis t widiou t di e TT E (i.e. , th e effec t

ofth e TT Eo n di e norma l flo w pattern s aroun dth e affecte d facility o r di e amoun t

of uncapture d VO C emission s shoul db e minimal) . Th e TTE mus t

enclos e th e applicatio n stations , coatin g reservoirs , an dal l area s fromdi e applicatio n statio n t o th e oven . Th e ove n doe s no t

hav e t o b e enclose d if i t i s unde r negativ e pressure . Th e NDO' s of th e temporar y enclosur e an d a n exhaus t

fan mus t b e properl y size d an dplaced . 7. 2 Estimat e th e ventilatio n rat e o f di e TTEdia t

bes t simulate s th e condition s dia t

exis t widiou t di e TT E (i.e. , th e effec t

of th e TT E o n di e norma l flo w pattern s aroun ddi e affecte d facility o r di e amoun t

o f uncapture d VO C emission s shoul db e minimal) . Figur e 204- 1 o r

di e followin g equatio n ma y b e use da s a n aid . 

### C E = - Q C C

G^- G Eq . 204- 1 Q G C G+QFC F Measur e th e concentratio n (Co ) an d flo w rat e (Qo ) o f

di e capture dga s stream , specif

y asaf e concentratio n (CF ) fo r th e uncapture dga s stream , estimat e di e CE , an ddie n us e di e plo t i n Figur e 204- 1 or Equatio n 204- 1 t o determin e di e volumetri c flo w rat e o f th e uncapture dga s strea m(QF) . A n exhaus t fa n tha t ha s avariabl e flo w contro l i s desirable . 7. 3 Monito r

di e VO C concentratio n o f di e capture dga s stea mi n di e duc t befor e di e captur e devic e widiou t di e TTE . T o minimiz e di e effec t o f tempora l variatio n o n th e capture demissions , di e baselin e measuremen t

shoul db e mad e ove r a s lon g atim e perio da s practical . However , di e proces s condition s mus t b e di e sam e for

th e measuremen t

i n sectio n 7. 5 a s the y ar e for dii s baselin e measurement . Thi s ma y requir e shor t measurin g time s for

dii s qualit y contro l chec k befor e an dafter

di e constructio n o f th e TTE . 7. 4 After

di e TTEi s constructed , monito r di e VOC concentratio n insid e di e TTE . Thi s concentratio n shoul dno t continu e t o increase , an dmus t no t excee dth e saf

e leve l accordin g t o ^P. 4

Federa l Registe r/

Vol . 62 , No . 11 5 /

Monday , Jun e 16 , 199 7 / Rule s an dRegulation s 3250 3 Occupationa l Safety an dHeald i Administratio n requirement s for permissibl e exposur e limits . A n increas e i n VO C concentratio n indicate s poo r TT Edesign . 7. 5 Monito r

di e VOC concentratio n of di e capture dga s strea mi n th e duc t befor e di e captur e devic e wid i th e TTE . T o limi t di e effec t

o f di e TT Eo n th e process , di e VOC concentratio n wit h an dwidiou t

th e TTEmus t

b e withi n 1 0 percent . I f th e measurement s d o no t agree , adjus t

di e ventilatio n rat e fro m di e TT Eunti l the y agre e widii n 1 0 percent . 8. Procedure 8. 1 Determin e th e equivalen t diameter s o f

di e NDO' s an ddetermin e di e distance s fro meac hVO C emittin g poin t t o al l NDO's . Determin e th e equivalen t

diamete r o f eac hexhaus t duc t o r hoo dan dit s distanc e t o al l NDO's . Calculat e di e distance s i n term s of equivalen t

diameters . Th e numbe r

o f equivalen t

diameter s shal l b e a t

leas t four . 8. 2 Measur e th e tota l surfac e are a (A T ) o f th e enclosur e an dth e tota l are a (AN ) of al l NDO' s i n di e enclosure . Calculat e di e ND O t o enclosur e are a rati o (NEAR

) a s follows : NEA R= -^

- Eq . 204- 2

A T Th e NEA Rmus t b e S10.05 . 8. 3 Measur e di e volumetri c flo w rate , correcte dt o standar dconditions , of eac hga s strea mexitin g di e enclosur e diroug ha n exhaus t

duc t o r hoo dusin g EP A Medio d2 . I n som e case s (e.g. , whe n th e buildin g i s di e enclosure) , i t ma y b e necessar y t o measur e di e volumetri c flo w rate , correcte dt o standar dconditions , o f

eac hga s strea m enterin g di e enclosur e throug haforce d makeu p ai r

duc t usin g Metho d2 . Calculat e F

V usin g di e followin g equation : F V = Qo"-Q i Eq . 204- 3 where : Q o = di e su mof

di e volumetri c flo w fro mal l ga s stream s exitin g th e enclosur e diroug ha n exhaus t duc t o r hood . Q i = di e su mof th e volumetri c flo w fro mal l ga s stream s int o th e enclosur e diroug haforce dmakeu p ai r duct ; zero , if

dier e i s n o force d makeu p ai r

int o di e enclosure . A N= tota l are aof

al l NDO' s i n enclosure . Th e F V shal l b e at

leas t 3,60 0 m/h r (20 0 fpm) . Alternatively , measur e di e pressur e differentia l acros s th e enclosure . A pressur e dro p o f 0.01 3 m m Hg (0.00 7 in . H 2 0 ) correspond s t o a n F V o f 3.60 0 m/h r

(20 0 fpm) . 8. 4 Verif

y tha t th e directio n o f

ai r flo w throug hal l NDO' s i s inward . I f F V i s les s tha n 9.00 0 m/h r

(50 0 fpm) . th e continuou s inwar dflo w of ai r shal l b e verifie dusin g streamers , smok e tubes , o r trace r gases . Monito r

di e directio n o f ai r flo w fo r a t leas t 1 hour , wid i check s mad e n o mor e tiian 1 0 minute s apart . If F V i s greate r

tha n 9.00 0 m/h r

(50 0 fpm) , di e directio n o f

ai r flo w diroug hdi e NDO s shal l b e presume dt o b e inwar d a t al l time s widiou t

verification . 9. Diagrams BILLIN G COD E 6S60-SO- P

### 3250 4 Federal Register / Vol . 62 , No . 11 5 /

Monday , June 16 , 199

7 / Rule s an dRegulation s P. 5



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