t

OISD-STD-118
Revision - II
FOR RESTRICTED
CIRCULATION
LAYOUTS
FOR
OIL AND GAS INSTALLATIONS
OISD STANDARD 118
Revision II, September 200
Oi! In"#str$ S%&et$ Dire'tor%te
Government of India
Ministry of Petrolem ! Natral Gas
OISD-STD-118
Revision II
September 200
FOR RESTRICTED
CIRCULATION
LAYOUTS
FOR
OIL AND GAS INSTALLATIONS
Pre"ared #y
Committee on
Layots for Oil and Gas Installations
OIL INDUSTR$ SAFET$ DIRECTORATE
%
T&
FLOOR' NE( DEL&I &OUSE
)%' *ARA+&AM*A ROAD
NE( DEL&I , --. ..-
NOTE
OISD (#b!i'%tions %re prep%re" &or t)e #se in t)e Oi! %n" G%s In"#str$
#n"er t)e *inistr$ o& (etro!e#m + N%t#r%! G%s, T)ese %re t)e propert$ o&
*inistr$ o& (etro!e#m + N%t#r%! G%s %n" s)%!! not be repro"#'e" or 'opie"
or !o%ne" or e-)ibite" to ot)ers .it)o#t .ritten 'onsent &rom OISD,
T)o#/) ever$ e&&ort )%s been m%"e to %ss#re t)e %''#r%'$ %n" re!i%bi!it$ o&
t)e "%t% 'ont%ine" in t)ese "o'#ments, OISD )ereb$ e-press!$ "is'!%ims
%n$ !i%bi!it$ or responsibi!it$ &or !oss or "%m%/e res#!tin/ &rom t)eir #se,
T)ese "o'#ments %re inten"e" to s#pp!ement r%t)er t)%n rep!%'e t)e
prev%i!in/ st%t#tor$ re0#irements,
1ii2
3OR45ORD
Oi! In"#str$ in In"i% is over 100 $e%rs o!", As s#') v%riet$ o& pr%'ti'es )%ve been in vo/#e
be'%#se o& 'o!!%bor%tion 6 %sso'i%tion .it) "i&&erent &orei/n 'omp%nies %n" /overnments,
St%n"%r"i7%tion in "esi/n p)i!osop)ies %n" oper%tin/ + m%inten%n'e pr%'ti'es %t n%tion%!
!eve! .%s )%r"!$ in e-isten'e, T)is, 'o#p!e" .it) &ee" b%'8 &rom some serio#s %''i"ents t)%t
o''#rre" in t)e re'ent p%st in In"i% %n" %bro%", emp)%sise" t)e nee" &or t)e in"#str$ to
revie. t)e e-istin/ st%te-o&-t)e-%rt in "esi/nin/, oper%tin/ %n" m%int%inin/ oi! %n" /%s
inst%!!%tions,
5it) t)is in vie., Oi! In"#str$ S%&et$ Dire'tor%te 1OISD2 .%s est%b!is)e" in 198: st%&&e"
&rom .it)in t)e in"#str$ in &orm#!%tin/ %n" imp!ementin/ % series o& se!& re/#!%tor$ me%s#res
%ime" %t removin/ obso!es'en'e, st%n"%r"isin/ %n" #p/r%"in/ t)e e-istin/ st%n"%r"s to
ens#re s%&er oper%tions, A''or"in/!$, OISD 'onstit#te" n#mber o& &#n'tion%! 'ommittees
'omprisin/ e-perts nomin%te" &rom t)e in"#str$ to "r%. #p st%n"%r"s %n" /#i"e!ines on
v%rio#s s#b;e'ts,
T)e ori/in%! "o'#ment on <L%$o#ts &or Oi! %n" G%s Inst%!!%tions< .%s p#b!is)e" in
November 1988 %n" its &irst revision re!e%se" in =#!$ 199>, In A#/#st 2000 it .%s %men"e"
in!ine .it) t)e re'ommen"%tions o& t)e ?i/) (o.er @ommittee, T)e present "o'#ment on
AL%$o#ts &or Oi! %n" G%s Inst%!!%tionB is t)e se'on" revision o& t)is OISD St%n"%r",
Attempts )%ve been m%"e to in'orpor%te t)e !%test te')no!o/i'%! ')%n/es, e-perien'e /%ine"
%&ter t)e imp!ement%tion o& st%n"%r"s %n" re!ev%nt #p"%tion in t)e v%rio#s n%tion%! %n"
intern%tion%! 'o"es %n" pr%'ti'es,
It is )ope" t)%t t)e provision o& t)is "o'#ment, i& imp!emente" ob;e'tive!$, .i!! /o % !on/ .%$
in improvin/ t)e s%&et$ in oi! %n" /%s in"#str$,
T)is "o'#ment .i!! be revie.e" perio"i'%!!$ &or improvements b%se" on t)e e-perien'e %n"
better #n"erst%n"in/, S#//estions &rom in"#str$ members m%$ be %""resse" toC
T/e Coordinator
@ommittee on Layots for Oil and Gas Installation
Oi! In"#str$ S%&et$ Dire'tor%te
D
t)
3!oor, Ne. De!)i ?o#se
2D, E%r%8)%mb% Ro%"
Ne. De!)i-110 001
1iii2
COMMITTEES ON
LA$OUTS FOR OIL AND GAS INSTALLATIONS
First Edition November 1988
Leader
S)ri R ( E)%ti% 4n/ineers In"i% Limite", Ne. De!)i
Mem#ers
S)ri F F Aror% Oi! %n" N%t#r%! G%s @orpor%tion Lt",, Eomb%$,
S)ri S F *#8)er;ee ?in"#st%n (etro!e#m @orpor%tion Lt",,1R2 Eomb%$
S)ri G F R%in% E)%r%t (etro!e#m @orpor%tion Lt",, 1*2, Eomb%$,
S)ri F R%vi F#m%r *%"r%s Re&ineries Limite", *%"r%s,
Mem#er Coordinator
S)ri E F Tre)%n Oi! In"#str$ S%&et$ Dire'tor%te,
First Revision July 1995
Leader
S)ri R ( E)%ti% 6 4n/ineers In"i% Limite", Ne. De!)i
S)ri * * F%p#r
13eb 9> =#!$ 9>2
Mem#ers
S)ri S F *#8)er;ee ?in"#st%n (etro!e#m @orpor%tion Lt",,1R2 Eomb%$
S)ri F F Aror% Oi! %n" N%t#r%! G%s @orpor%tion Lt",, Eomb%$,
S)ri G F R%in% E)%r%t (etro!e#m @orpor%tion Lt",, 1*2, Eomb%$,
S)ri S (%n"%rin%t)%n *%"r%s Re&ineries Limite", *%"r%s,
Mem#er Coordinator
S)ri E S%")#8)%n 6 Oi! In"#str$ S%&et$ Dire'tor%te,
S)ri S N *%t)#r 1Apri! 9> =#!$9>2
Amended Edition August 2000
Amen"ments .ere '%rrie" o#t to t)is st%n"%r" b%se" on t)e re'ommen"%tion o& ?i/) (o.er
@ommittee set #p in 199D b$ t)e *inistr$ o& (etro!e#m %n" N%t#r%! /%s to revie. t)e
st%n"%r" .it) respe't to !%n" re0#irement in!ine .it) n%tion%! %n" intern%tion%! st%n"%r"s,
1iv2
COMMITTEES ON
LA$OUTS FOR OIL AND GAS INSTALLATIONS
Second Revision ont! "#e$r
LEADER
S)ri Gin%$ F#m%r GAIL 1In"i%2 Limite", Ne. De!)i
MEM*ERS
S)ri Arvin" F#m%r, 4n/ineers In"i% Limite", Ne. De!)i
S)ri F,T,Lo8)%n"e, Dep%rtment o& 4-p!osives, N%/p#r
S)ri ?,S,(, R%o, E(@L, *#mb%i Re&iner$, *#mb%i
S)ri T)om%s @)%'8o, Fo')i Re&ineries Limite", Fo')i
S)ri S,G,(%!nit8%r, ?(@L Gis%8) Re&iner$, Gis%8)%p%tn%m,
S)ri D,F,E%ner;ee IO@L (ipe!ines Division, NOIDA
S)ri *,D,S)%) IO@L, (%nip%t Re&iner$, (%nip%t
S)ri S,S,*%;i, IO@L Re&ineries ?H, Ne. De!)i
S)ri S#ni! De.%n, E(@L, NOIDA
S)ri A,E#r%/o)%in, Oi! In"i% Limite", D#!i%;%n
MEM*ER0CO0ORDINATOR
S F A//%r.%! Oi! In"#str$ S%&et$ Dire'tor%te, Ne. De!)i
In addition to the above, several other experts from the industry contributed in the
preparation, review and finalization of this document.
(v)
INDE1
SECTION CONTENTS PAGE No 2
1,0 Intro"#'tion

2,0 S'ope

I,0 De&initions

,0 (!%nt L%$o#t ()i!osop)$

>,0 L%$o#t o& E!o'8s63%'i!ities

:,0 L%$o#t o& (ro'ess Units

D,0 L%$o#t o& Stor%/e T%n8s

8,0 L%$o#t o& L(G 3%'i!ities

9,0 Re&eren'es
TA*LES
T1, Sep%r%tion "ist%n'es bet.een E!o'8s 6 3%'i!ities

T2, Sep%r%tion "ist%n'es bet.een e0#ipment .it)in (ro'ess #nit
TI, Inter-"ist%n'es bet.een Stor%/e T%n8s %n" O&&site &%'i!ities
1L%r/e inst%!!%tion2
T, Sep%r%tion "ist%n'es bet.een Stor%/e T%n8s %n" O&&site
&%'i!ities 1Sm%!! Inst%!!%tions2

T>, Sep%r%tion "ist%n'es bet.een Stor%/e T%n8s .it)in % D$8e

T:, Sep%r%tion "ist%n'es &or L(G 3%'i!ities

TD, Sep%r%tion "ist%n'es bet.een L(G Stor%/e Gesse!s %n"
Eo#n"%r$ 6 (ropert$ !ine 6 Gro#p o& E#i!"in/s not
%sso'i%te" .it) L(G &%'i!ities
1vi2
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
LA$OUTS FOR OIL AND GAS INSTALLATIONS
-2. INTRODUCTION
?$"ro'%rbon pro'essin/ %n" )%n"!in/
p!%nts %re in)erent!$ )%7%r"o#s, To"%$Js
tren" o& !%r/e %n" 'omp!e- p!%nts
present s#bst%nti%! ris8 potenti%!, At
times p!%nts %re mo"i&ie" to oper%te %t
)i/)er '%p%'ities or e&&i'ien'ies
ne'essit%tin/ !%r/er stor%/e re0#irements
t)%n 'ontemp!%te" e%r!ier, 3or t)ese
re%sons, initi%! site %n%!$sis &or t)e
propose" ne. 'onstr#'tion or %""ition
s)o#!" be "one '%re&#!!$ .)i!e
'onsi"erin/ t)e sp%'e %!!o'%tion to t)e
v%rio#s &%'i!ities,
T)e )$"ro'%rbon in"#str$ over t)e $e%rs
!e%rnt !essons &rom &ires %n" e-p!osions
t)ro#/)o#t t)e .or!" %n" )%s been #p-
"%tin/ p!%nt s%&et$ norms in'!#"in/
inter-"ist%n'es bet.een &%'i!ities %n"
t)eir re!%tive !o'%tions, T)e minim#m
"ist%n'es re'ommen"e" m%n$ $e%rs %/o
nee" revie. in t)e 'onte-t o& to"%$Js
environment in t)e in"#str$,
It is not inten"e" t)%t re0#irement o& t)is
st%n"%r" s)o#!" be %pp!ie" ri/i"!$ to
e-istin/ premises .)ere, &or % v%riet$ o&
re%sons, it m%$ not be pr%'ti'%b!e to
'omp!$ .it),
)2. SCOPE
T)is "o'#ment !%$s "o.n minim#m
re0#irements o& !%$o#ts .it)in t)e p!%nt
bo#n"%r$ &or petro!e#m re&ineries, Oi! 6
G%s pro"#'tion %n" pro'essin/ p!%nts,
L(G &%'i!ities, (ipe!ine inst%!!%tions 6
termin%!s, L#be oi! inst%!!%tions %n"
ot)er (etro!e#m stor%/e inst%!!%tions
s#') %s @r#"e oi! /%t)erin/ st%tions,
*%r8etin/ "epots %n" termin%!s,
Avi%tion stor%/e + &#e!!in/ st%tions,
T%n8 &%rm &or stor%/e o& 'r#"e 6
pro"#'ts,
T)e re0#irement o& /reen be!t 6 b#&&er
7one be$on" t)e p!%nt bo#n"%r$ is
o#tsi"e t)e s'ope o& t)is st%n"%r", S#')
provisions s)o#!" be 'onsi"ere" b%se"
on !o'%! environment%! 6 se'#rit$
re0#irements,
32. DEFINITIONS
a4 *lo56
3%'i!ities oper%te" 6 #se" in inte/r%te"
.%$ %n" s#rro#n"e" b$ ro%"s, 3or
e-%mp!e pro'ess #nit, boi!er )o#se,
/ro#p o& t%n8s !o'%te" in % "$8e, /ro#p
o& press#ri7e" stor%/e t%n8s, !o%"in/
/%ntries, &!%re et',
#4 C7 and Li8/ter ends
?$"ro'%rbons or % mi-t#re o&
?$"ro'%rbons 'ont%inin/ &o#r or !ess
t)%n &o#r '%rbon %toms, 4-%mp!es %re
E#t%ne, (rop%ne, (rop$!ene et', L(G, %
mi-t#re o& prop%ne %n" b#t%ne %!so &%!!
#n"er t)e s%me '%te/or$,
54 Crde Oil Gat/erin8 Station9
@r#"e oi! /%t)erin/ st%tion 6 Gro#p
/%t)erin/ st%tion is % pro"#'tion
inst%!!%tion #se" &or /%t)erin/, tre%tin/
or storin/ 'r#"e oi! %n" in'!#"es 'entr%!
t%n8 &%rm, oi! 'o!!e'tin/ st%tion, /%s
'ompressor st%tion %n" .e!! )e%"
inst%!!%tion,
d4 Fa5ility
T)is re&ers to %n$ b#i!"in/, str#'t#re,
inst%!!%tion, e0#ipment, pipe!ine, or
ot)er p)$si'%! &e%t#re #se" in petro!e#m
re&inin/, stor%/e, tr%nsport%tion %n"
"istrib#tion,
e4 Fire station
A b#i!"in/ )o#sin/ &%'i!ities o& p%r8in/
&ire ten"ers %n" 8eepin/ ot)er re%"$ to
#se &ire-&i/)tin/ e0#ipment &or meetin/
p!%nt emer/en'ies, &ire 'ontro! room
.it) re0#ire" 'omm#ni'%tion
&%'i!ities6mimi' p%ne!,
f4 Fire (ater "m" /ose
A b#i!"in/ )o#sin/ &ire .%ter p#mps,
;o'8e$ p#mps, 'omm#ni'%tion %n"
%!%rm s$stem, instr#ment%tion %n" t)e
re0#ire" oper%tin/ + s#pportin/
personne!,
84 Flas/ Point
<3!%s) point< o& %n$ petro!e#m !i0#i" is
t)e !o.est temper%t#re %t .)i') t)e
!i0#i" $ie!"s v%po#r in s#&&i'ient
'on'entr%tion to &orm %n i/nit%b!e
mi-t#re .it) %ir %n" /ives % moment%r$
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
1
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
&!%s) on %pp!i'%tion o& % sm%!! pi!ot
&!%me #n"er spe'i&ie" 'on"itions o& test
%s per ISC 18 1(%rt-I2,
/4 Gas Pro5essin8 Plant
G%s pro'essin/ p!%nt is % &%'i!it$ .)ere
n%t#r%! /%s is re'eive" %n" pro'esse" to
sep%r%te /%s, L(G, 'on"ens%te et',
i4 General Classifi5ation Of Petrolem
Prod5ts
(etro!e#m pro"#'ts %re '!%ssi&ie"
%''or"in/ to t)eir '!ose" '#p 3LAS?
(OINTS %s /iven be!o.C
: Class0A Petrolem9 Li0#i"s .)i')
)%ve &!%s) point be!o. 2I
o
@,
: Class0* Petrolem9 Li0#i"s .)i')
)%ve &!%s) point o& 2I
o
@ %n" %bove
b#t be!o. :>
o
@,
: Class0C Petrolem9 Li0#i"s .)i')
)%ve &!%s) point o& :>
o
@ %n" %bove
b#t be!o. 9I
o
@,
: E;5lded Petrolem9 Li0#i"s
.)i') )%ve &!%s) point o& 9I
o
@ %n"
%bove,
Li0#e&ie" /%ses in'!#"in/ L(G "o not
&%!! #n"er t)is '!%ssi&i'%tion b#t &orm
sep%r%te '%te/or$,
NoteC In t)e &o!!o.in/ '%ses, %bove
'!%ssi&i'%tion "oes not %pp!$ %n" spe'i%!
pre'%#tions s)o#!" be t%8en %s re0#ire"C
1i2 5)ere %mbient temper%t#res or t)e
)%n"!in/ temper%t#res %re )i/)er
t)%n t)e &!%s) point o& t)e pro"#'t,
1ii2 5)ere pro"#'t )%n"!e" is %rti&i'i%!!$
)e%te" to % temper%t#re %bove its
&!%s) point,
<4 &a=ardos Area
An %re% .i!! be "eeme" to be )%7%r"o#s
.)ereK
1i2 (etro!e#m )%vin/ &!%s) point be!o.
:> "e/,@ or %n$ &!%mm%b!e /%s or
v%por in % 'on'entr%tion '%p%b!e o&
i/nition is !i8e!$ to be present,
1ii2 (etro!e#m or %n$ &!%mm%b!e !i0#i"
)%vin/ &!%s) point %bove :> "e/,@ is
!i8e!$ to be re&ine", b!en"e" or
store" %t %bove its &!%s) point,
3or '!%ssi&i'%tion %n" e-tent o&
)%7%r"o#s %re%, re&er <T)e (etro!e#m
R#!es - 2002<,
64 LPG Fa5ilities
L(G &%'i!it$ is one .)ere !i0#e&ie"
petro!e#m /%s 1L(G2 is store",
re'eive" 6 "esp%t')e" b$ r%i! 6 ro%" 6
pipe!ine %n" 6 or &i!!e" in '$!in"ers,
l4 L#e Oil Installations
T)e &%'i!ities &or re'eipt, stor%/e %n"
b!en"in/ o& b%se oi!s + %""itives into
&inis)e" L#be pro"#'ts, It in'!#"es !#be-
b!en"in/ p!%nts, /re%se m%n#&%'t#rin/
p!%nts,
m4 May
In"i'%tes provisions t)%t %re option%!,
n4 Oil > Gas Prod5tion Plant
Oi! 6 G%s pro"#'tion p!%nt is % p!%nt
.)ere oi! %n"6or /%s is 'o!!e'te",
st%bi!i7e" %n" "esp%t')e" &or &#rt)er
pro'essin/, Dri!!in/ %'tivities %n"
&%'i!ities #pstre%m o& t)e @)ristm%s Tree
o& % .e!! %re not 'overe" #n"er t)is
"e&inition,
o4 Pi"eline Installations
(ipe!ine Inst%!!%tions %re t)e &%'i!ities on
'ross-'o#ntr$ pipe!ines %n" in'!#"e
se'tion%!i7in/ v%!ve st%tion, pi/
!%#n')in/ 6 re'eivin/ st%tion,
interme"i%te p#mpin/ st%tion 6
'ompressor st%tion, t%p-o&& st%tion,
"isp%t') %n" re'eivin/ &%'i!ities .it) or
.it)o#t stor%/e,
"4 Petrolem Refinery
(etro!e#m Re&iner$ is % p!%nt .)ere
'r#"e oi! is re'eive" %n" pro'esse" into
interme"i%tes %n" &inis)e" pro"#'ts,
?4 Pro5ess Unit
A #nit )%vin/ inte/r%te" se0#en'e o&
oper%tion, p)$si'%! %n" ')emi'%!, %n"
m%$ invo!ve prep%r%tion, sep%r%tion,
p#ri&i'%tion, or ')%n/e in st%te, ener/$
'ontent or 'omposition,
r4 Prote5tion for e;"osre
T)is re&ers to &ire prote'tion &or
str#'t#res on propert$ %";%'ent to !i0#i"
stor%/e,
s4 Servi5e #ildin8
A b#i!"in/ )o#sin/ &%'i!ities &or
inspe'tion 6 m%inten%n'e 6 ot)er
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
$
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
s#pportin/ servi'es .)i') %re "ire't!$
re0#ire" &or oper%tion o& t)e p!%nt e,/,
.%re)o#se, .or8s)op et',
t4 S/all
In"i'%tes provisions t)%t %re m%n"%tor$,
4 S/old
In"i'%tes provisions t)%t %re
re'ommen"e" b#t not m%n"%tor$,
Imp!ement%tion o& t)ese provisions s)%!!
be m%"e b%se" #pon 'onsi"er%tion o& t)e
&o!!o.in/s, %s %ppropri%teC 1%2 ris8 6
bene&it %n%!$sis, 1b2 'omp%n$ st%n"%r"s,
1'2 'omp%n$ e-perien'e, %n" 1"2
'omp%n$ p)i!osop)$,
v4 Sta#lin8 Line
It is %n %""ition%! r%i!.%$ !ine 6 sp#r
reserve" &or %""ition%! r%8e 6 st%b!in/,
@4 Stora8e > fillin8 s/ed
3%'i!it$ &or stor%/e %n" &i!!in/ o& p%'8e"
1non-b#!82 petro!e#m pro"#'t,
;4 Tan6 /ei8/t
T%n8 )ei/)t is t)e )ei/)t &rom t%n8
bottom to top 8erb %n/!e &or 'one roo&
t%n8s, 3or &!o%tin/ roo& t%n8s, it is t)e
)ei/)t &rom t%n8 bottom to top o& t%n8
s)e!!,
y4 Tan6 ve/i5le loadin8 > nloadin8
3%'i!it$ &or !o%"in/ 6 #n!o%"in/ o&
petro!e#m pro"#'t to 6 &rom t%n8 .%/on
or t%n8 tr#'8,
72. PLANT LA$OUT P&ILOSOP&$
3o!!o.in/ p)i!osop)$ s)o#!" be
%"opte" in !%$o#t o& %n inst%!!%tionK
%2 E!o'8 !%$o#t s)o#!" be %"opte" %s &%r %s
possib!e, (!%nt !%$o#t %rr%n/ement
s)o#!" &o!!o. t)e /ener%! ro#te o& r%.
m%teri%! to pro'ess #nit1s2 .it) t%n8%/es
interpose" %s re0#ire" &o!!o.e" b$
stor%/e + "esp%t') &%'i!ities, T)e entire
%re% s)o#!" be s#b-"ivi"e" into b!o'8s,
b2 A!! pro'ess #nits %n" "$8e" en'!os#res
o& stor%/e t%n8s s)%!! be p!%nne" in
sep%r%te b!o'8s .it) ro%"s %!! %ro#n" &or
%''ess %n" s%&et$,
'2 (rim%r$ tr%&&i' ro%"s in t)e inst%!!%tion
s)o#!" be o#tsi"e )%7%r"o#s %re%s,
Ro%"s sep%r%tin/ t)e b!o'8s s)%!! %'t %s
&irebre%8s,
"2 (e"estri%n p%t).%$s s)o#!" be
provi"e" 6 m%r8e" %!on/si"e t)e prim%r$
tr%&&i' ro%"s,
e2 A!tern%tive %''ess s)%!! be provi"e" &or
e%') &%'i!it$ so t)%t it '%n be %ppro%')e"
&or &ire &i/)tin/ in t)e event o& b!o'8%/e
on one ro#te,
&2 Ro%" .i"t)s, /r%"ient %n" t#rnin/ r%"ii
%t ro%" ;#n'tions s)%!! be "esi/ne" to
&%'i!it%te movement o& t)e !%r/est &ire-
&i/)tin/ ve)i'!e in t)e event o&
emer/en'$,
/2 R%i! sp#r s)%!! be !o'%te" '!ose to t)e
perip)er$ o& t)e p!%nt to minimise
ro%"6pipe 'rossin/s %n" b!o'8%/e o&
ro%"s "#rin/ s)#ntin/,
)2 L%$o#t o& t)e &%'i!ities s)%!! be m%"e to
minimise tr#'8 tr%&&i' in/ress in t)e
p!%nt,
i2 T.o ro%" %ppro%')es &rom t)e
)i/).%$ 6 m%;or ro%" s)o#!" be
provi"e", one &or emp!o$ees %n" ot)er
&or pro"#'t 6 m%teri%! movement, Eot)
t)ese %ppro%')es s)o#!" be %v%i!%b!e &or
re'eipt o& %ssist%n'e in emer/en'$,
;2 (resen'e o& i/nition so#r'e s)%!! %!.%$s
be 'ontemp!%te" be$on" t)e bo#n"%r$
.%!! o& t)e inst%!!%tion,
82 Orient%tion o& &!%res, &#rn%'es + )e%ters,
"#st$ oper%tions 1e,/, s#!p)#r )%n"!in/
et'2 %n" 'oo!in/ to.ers s)o#!" be
"e'i"e" b%se" on prev%i!in/ .in"
"ire'tion to %voi" tr%ve! o& )$"ro'%rbon
v%po#r over so#r'es o& i/nition,
!2 4re'tion met)o"s s)%!! be st#"ie" &or %!!
t$pes o& e0#ipment 6 str#'t#res, To.ers,
re%'tors, &ire" e0#ipment et' s)o#!" be
!o'%te" in s#') %n %re% so to &%'i!it%te
ere'tion,
m2 *%inten%n'e re0#irements &or e%') t$pe
o& e0#ipment s)%!! be i"enti&ie" %n"
'onsi"ere",
n2 3or 'onstr#'tion %'tivities, %re% s)o#!"
be e%rm%r8e",
o2 3#t#re e-p%nsion s)o#!" be %ssesse" %n"
sp%'e provision be m%"e %''or"in/!$,
A2.2 LA$OUT OF *LOC+S >
FACILITIES
To prep%re % !%$o#t, in&orm%tion s)o#!"
be 'o!!e'te" on t)e &o!!o.in/ %spe'ts, %s
%pp!i'%b!eK
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
%
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
- (ro'ess #nits, #ti!it$ re0#irements,
stor%/e t%n8s, L(G stor%/e vesse!s
%n" ot)er press#ri7e" stor%/e vesse!s
- (ro"#'t re'eipt 6 "esp%t') %n" mo"e
o& tr%nsport 1r%i!, ro%" %n" pipe!ine2
- 5%re)o#ses, stor%/e %re%s &or so!i"
pro"#'ts s#') %s petro!e#m 'o8e,
petro!e#m .%-, s#!&#r, bit#men 6
%sp)%!t et' %n" ot)er open stor%/e
%re%s !i8e s'r%p $%r"s %n" "#mpin/
/ro#n"
- @)emi'%! 6 To-i' ')emi'%!s stor%/e,
)%7%r"o#s .%ste stor%/e 6 "ispos%!,
- 3!%res
- Servi'e b#i!"in/s, &ire st%tion %n" &ire
tr%inin/ /ro#n"
- Site topo/r%p)$ in'!#"in/ e!ev%tion,
s!ope, %n" "r%in%/e
- *eteoro!o/i'%! "%t%,
- E%t)$metri' "%t% 1)i/) ti"e !eve!,
s#r/e .%ve )ei/)t et',2 &or
inst%!!%tions in 'o%st%! %re%s,
- Seismi' "%t%
- ?i/)est &!oo" !eve! in t)e %re%, .%ter
t%b!e, n%t#r%! stre%ms6 '%n%!s
- Appro%') ro%"s to m%in p!%nt %re%s
- Avi%tion 'onsi"er%tions
- Ris8 to %n" &rom %";%'ent &%'i!ities
- 4nvironment%! 'onsi"er%tions
- St%t#tor$ ob!i/%tions
A2- General 5onsideration for t/e layot
of #lo56s > fa5ilities
5)i!e !o'%tin/ t)e v%rio#s &%'i!ities 6
b!o'8s, t)e &o!!o.in/ s)o#!" be
'onsi"ere"C
1%2 L%$o#t o& E!o'8s 6 &%'i!ities s)o#!" be in
se0#enti%! or"er o& pro'ess &!o.,
1b2 (ro'ess #nit1s2, t%n8 &%rm, !o%"in/
/%ntr$, so!i" stor%/e, #ti!ities, 4&&!#ent
Tre%tment (!%nt 14T(2 %n" %ppro%')
ro%"s s)o#!" be !o'%te" on )i/) /ro#n"
to %voi" &!oo"in/,
1'2 In '%se pro'ess #nits %re oper%te" in %n
inte/r%te" .%$ %n" s)#t"o.ns %re t%8en
sim#!t%neo#s!$, t)en it m%$ be
'onsi"ere" %s % sin/!e b!o'8,
1"2 @ontro! room s)o#!" be !o'%te" in %
non-)%7%r"o#s %re% #p.in" o& pro'ess
p!%nts 6 )$"ro'%rbon stor%/e %n"
)%n"!in/ &%'i!ities, It s)%!! not be !o'%te"
on % !o.er !eve! t)%n s#rro#n"in/ p!%nts
%n" t%n8 &%rms, T)ere s)%!! be no
str#'t#re t)%t .o#!" &%!! on t)e 'ontro!
room in '%se o& % b!%st, 3or "et%i!s, re&er
OISD-STD-1:I,
1e2 Uti!it$ b!o'81s2 s)o#!" pre&er%b!$ be
!o'%te" %";%'ent to #nit b!o'8s,
1&2 (o.er /ener%tion &%'i!ities .)i') %!so
s#pp!$ ste%m &or pro'ess re0#irement
s)o#!" be !o'%te" ne%r t)e pro'ess #nit
b!o'8, 5)en e-tern%! po.er /ri" is
inter'onne'te" .it) p!%nt po.er
/ener%tion &%'i!ities, eit)er t)e po.er
p!%nt s)o#!" be !o'%te" %t t)e si"e o& t)e
bo#n"%r$ .%!! or t)e e-tern%! po.er
tr%nsmission !ines s)o#!" be t%8en
#n"er/ro#n" #pto inter'onne'tion /ri",
1/2 Over)e%" po.er tr%nsmission !ines s)%!!
not p%ss over t)e inst%!!%tion in'!#"in/
t)e p%r8in/ %re%s, ?ori7ont%! '!e%r%n'e
s)%!! be in !ine .it) t)e In"i%n
4!e'tri'it$ R#!es,
1)2 ?i/) Tension 1?T2 s#b-st%tion1s2 s)o#!"
be !o'%te" '!ose to m%;or !o%" 'enters,
1i2 Lo. Tension 1LT2 s#b-st%tion s)o#!" be
!o'%te" %t !o%" 'enters in s#') % .%$ t)%t
t)e "ist%n'e bet.een "istrib#tion
tr%ns&ormer %n" &%rt)est motor is
minim#m,
1;2 @oo!in/ To.ers s)o#!" be !o'%te"
"o.n.in" o& pro'ess e0#ipment %n"
s#bst%tion so t)%t &o/ "eve!ope" .i!! not
'%#se 'orrosion or obstr#'t vision or
s)ort-'ir'#itin/,
182 Stor%/e t%n8s s)o#!" be /ro#pe"
%''or"in/ to pro"#'t '!%ssi&i'%tion, In
#n"#!%tin/ %re%s, stor%/e t%n8s s)o#!"
be !o'%te" %t !o.er e!ev%tions
1!2 Tr#'8 !o%"in/ 6 #n!o%"in/ &%'i!ities
s)o#!" be !o'%te" '!ose to pro"#'t
movement /%te %n" s)o#!" be oriente"
to provi"e one-.%$ tr%&&i' p%ttern &or
entr%n'e %n" e-it,
R%i! !o%"in/ &%'i!ities s)o#!" be !o'%te"
%!on/ t)e perip)er$ o& t)e inst%!!%tion,
1m2 S#!p)#r re'over$ #nit %n" s#!p)#r
!o%"in/ %re% s)o#!" be !o'%te" '!ose to
pro"#'t movement /%te %n" %.%$ &rom
pro'ess #nits, )%7%r"o#s %n" pop#!%te"
%re%s,
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
&
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
40#ipment "r%.in/ %ir 1e,/, %ir
'ompressors, %ir b!o.er, 3D &%n et'2
s)o#!" be !o'%te" %.%$ &rom S#!&#r
re'over$ #nit 6 S#!&#r )%n"!in/ &%'i!it$,
*inim#m sep%r%tion "ist%n'e o& >0
meters is re'ommen"e" bet.een s#!&#r
stor%/e 6 )%n"!in/ %n" %n$ &%'i!it$ or
bo#n"%r$ .%!!,
1n2 (etro!e#m 'o8e stor%/e %n" )%n"!in/
&%'i!ities s)o#!" be !o'%te" %s &%r %s
possib!e %.%$ &rom pro'ess #nits, %ir
sep%r%tion p!%nts, pop#!%te" %n"
)%7%r"o#s %re%s,
1o2 Sep%r%te 'o!!e'tion s$stem s)o#!" be
provi"e" &or "i&&erent t$pes o& .%ste
/ener%te" in t)e pro'ess p!%nt s#') %s
oi!$ .%ter, '%#sti', %'i" e&&!#ents, &e'%!
et', 4&&!#ent Tre%tment (!%nt s)o#!" be
!o'%te" minim#m one b!o'8 %.%$ &rom
pro'ess #nit %re%, "o.n .in" o& pro'ess
#nits %n" import%nt %re%s 'onsi"erin/
o"o#r + emission o& vo!%ti!e or/%ni'
'ompo#n", T)is s)o#!" be '!oser to
"ispos%! point b$ t)e si"e o& t)e
bo#n"%r$ %n" %t !o.er /r%"e to &%'i!it%te
/r%vit$ &!o. o& e&&!#ent,
1p2 3!%re s)o#!" be !o'%te" #p.in" o&
pro'ess #nits %n" t)e %re% %ro#n" &!%re
s)o#!" be p%ve", 3or more "et%i!s
OISD-STD-10: on <(ro'ess Desi/n %n"
Oper%tin/ ()i!osop)ies on Re!ie& %n"
Dispos%! s$stems< s)%!! be re&erre",
102 *%in pipe r%'8s 6 pipe tr%'8 s)%!! not be
ro#te" t)ro#/) pro'ess #nits, (rovi"e
over)e%" '!e%r%n'e &or ve)i'!es over
ro%".%$s %n" r%i!ro%"s,
1r2 Ro%"s s)o#!" be provi"e" in %
s$mmetri' m%nner to serve %!! pro'ess
%re%s re0#irin/ %''ess &or t)e oper%tion,
m%inten%n'e %n" &ire &i/)tin/, T)ese
ro%"s s)o#!" en'ir'!e t)e pro'ess b!o'8s6
pro'ess #nits,
1s2 Smo8in/ boot)s s)o#!" not be provi"e"
in t)e )$"ro'%rbon in"#str$, ?o.ever i&
re0#ire", t)ese s)%!! be !o'%te" %t
minim#m "ist%n'e o& :0 meters &rom
%n$ )$"ro'%rbon so#r'e,
1t2 3ire st%tion, &ire.%ter stor%/e +
&ire.%ter p#mp )o#se s)%!! be !o'%te" %t
% s%&e p!%'e %.%$ &rom )%7%r"o#s %re%s,
3ire st%tion s)o#!" be #p.in" o& pro'ess
#nits %n" )$"ro'%rbon stor%/e %re% .it)
str%i/)t %ppro%') to pro'ess #nits 6 ot)er
'riti'%! %re%s,
1#2 Lo'%tion o& &ire.%ter p#mps + t%n8s
s)%!! be in!ine .it) OISD-STD-11:,
OISD-STD-11D + OISD-STD-1 %s
t)e '%se m%$ be,
A2) Se"aration distan5esB
*inim#m sep%r%tion "ist%n'es bet.een
v%rio#s b!o'8s 6 &%'i!ities "es'ribe"
%bove s)%!! be %s per T%b!e-1, T)e t%b!e
s)%!! be re%" in 'on;#n'tion .it) t)e
notes spe'i&ie" .it) t)e t%b!e,
C2. LA$OUT OF PROCESS UNITS
40#ipment in pro'ess #nit '%n be
%rr%n/e" in m%n$ .%$s, S%&et$,
e'onom$, oper%bi!it$, %n" e%se o&
m%inten%n'e s)o#!" be 'onsi"ere" in
!o'%tin/ e%') item .it)in t)e #nit,
A"e0#%te sp%'in/ bet.een e0#ipment
.i!! )e!p in minimi7in/ t)e spre%" o&
&ire, @onsi"er%tion s)o#!" be /iven to
%''ess &or &ire &i/)tin/,
C2- General Considerations for t/e layot
of Pro5ess E?i"ment
1%2 (ro'ess &!o. se0#en'e %n" oper%tin/
pro'e"#res s)o#!" be t)oro#/)!$
#n"erstoo" so t)%t e0#ipment
%rr%n/ement in t)e p!ot p!%n is
&#n'tion%!, 40#ipment s)o#!" be
%rr%n/e" in !o/isti' pro'ess se0#en'e &or
optim#m pipin/ r#ns %n" oper%tion%!
%n" m%inten%n'e e%se, Sp%'in/ bet.een
e0#ipment s)%!! be %"e0#%te &or
#n"ert%8in/ m%inten%n'e ;obs,
1b2 T)e #nit pipe r%'8 s)o#!" be 8ept in t)e
'entre, t)ereb$ sp!ittin/ t)e #nit into t.o
or more %re%s o& e0#ipment, (#mps m%$
be %rr%n/e" in t.o ro.s '!ose to %n" on
eit)er si"e o& t)e pipe r%'8, ?e%t
4-')%n/ers %n" vesse!s s)o#!" be
/ro#pe" to/et)er &ormin/ o#ter ro.s on
bot) si"es o& t)e r%'8,
1'2 ?e%t e-')%n/ers s)o#!" be !o'%te"
perpen"i'#!%r to t)e pipe r%'8 on t)e
o#ter ro. to &%'i!it%te p#!!in/ o& t#be
b#n"!es .it) mobi!e 'r%ne or b$ ot)er
me%ns, S)e!! %n" t#be )e%t e-')%n/er
s)o#!" )%ve % !on/it#"in%! '!e%r%n'e o&
%t !e%st one-meter p!#s t)e !en/t) o&
remov%b!e b#n"!es,
1"2 Air &in 'oo!ers s)o#!" be inst%!!e" %bove
t)e pipe r%'8 6 te')no!o/i'%! str#'t#res 6
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
'
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
in"epen"ent str#'t#re, (#mps )%n"!in/
)$"ro'%rbons %bove t)e temper%t#re o&
2I0
o
@ or @

%n" Li/)ters s)o#!" not be

inst%!!e" #n"erne%t) t)e %ir &in 'oo!ers,
1e2 Gesse!s )%vin/ !%r/e !i0#i" )o!"-#p
s)o#!" be inst%!!e" %t !o.er )ei/)ts %n"
pre&er%b!$ %t /r%"e, A"e0#%te "r%in%/e
s)o#!" be provi"e" %ro#n" s#') vesse!s,
5)ere pro'ess re0#irement "i't%tes t)eir
inst%!!%tion %bove /r%"e, t)ese s)o#!" be
!o'%te" in open %re%,
1&2 To.ers 6 'o!#mns s)o#!" be !o'%te"
%!on/ t)e pipe r%'8 to.%r"s open %re%s
&or #nobstr#'te" ere'tion %s .e!! %s
m%inten%n'e o& intern%!s %t /r%"e, T%!!
to.ers re0#irin/ &re0#ent oper%tin/
%ttention %t #pper !eve!s m%$ be !o'%te"
%t one p!%'e so t)%t 'ommon 'onne'tin/
p!%t&orm '%n be provi"e",
1/2 T)ermo-sip)on reboi!ers s)o#!"
pre&er%b!$ be p!%'e" '!ose to t)eir
%sso'i%te" to.ers,
1)2 Gesse!s, 'o!#mn, Re%'tors .it) intern%!s
%n" 6 or 'ont%inin/ '%t%!$sts, ')emi'%!s
et' s)o#!" )%ve % "rop-o#t %re% &or
removin/ 6 inst%!!in/ t)e intern%!s %n" 6
or &or !o%"in/ 6 #n!o%"in/ o& '%t%!$sts
%n" ')emi'%!s,
1i2 ?e%ters s)o#!" be !o'%te" #p .in" %t
one 'orner o& t)e #nit, Sp%'e s)o#!" be
provi"e" &or remov%! %n" '!e%nin/ o&
)e%ter t#bes besi"es %ppro%') &or 'r%ne,
Are%s %ro#n" t)e )e%ters s)%!! be /r%"e"
&or /#i"in/ spi!!s %.%$ &rom pro'ess
e0#ipment, 3or'e" Dr%&t &%ns s)%!! be
!o'%te" %.%$ &rom pro'ess e0#ipment
&rom .)ere t)e$ %re !i8e!$ to s#'8
)$"ro'%rbon v%pors,
1;2 No tren')es or pits .)i') mi/)t )o!"
&!%mm%b!es s)o#!" e-ten" #n"er t)e
&#rn%'e %n" 'onne'tions .it)
#n"er/ro#n" "r%in s$stem s)o#!" be
se%!e" over %n %re% 1> meters &rom t)e
&#rn%'e .%!!s,
182 T)e !o'%! 'ontro! p%ne! &or soot b!o.er
'ontro! %n" &!#e /%s %n%!$7er on!$
s)o#!" be !o'%te" on %n" ne%r t)e
pro'ess )e%ter, T)e rest o& 'ontro!s
s)o#!" be t%8en to 'ontro! room,
1!2 G%s 'ompressors s)o#!" be !o'%te"
"o.n .in" &rom )e%ters so t)%t !e%8e"
/%ses .i!! not "ri&t to.%r"s t)e )e%ter,
G%s 'ompressors s)o#!" )%ve roo&in/
%n" open &rom si"es to %voi"
%''#m#!%tion o& )e%vier v%po#rs6/%ses
on t)e &!oor o& 'ompressor )o#se,
@ompressor )o#se s)o#!" be !o'%te"
ne%r t)e b%tter$ !imits to &%'i!it%te e%se
in m%inten%n'e %n" oper%tion, Drop o#t
%re% s)o#!" be provi"e" &or
m%inten%n'e,
1m2 No ot)er t%n8%/e e-'ept "%$ t%n8s 6
pro'ess ')emi'%!s s)%!! be provi"e"
.it)in b%tter$ !imits o& %n$ pro'ess #nit,
1n2 (ro'ess ')emi'%!s stor%/e t%n8s s)o#!"
be provi"e" .it) 8erb .%!! o& minim#m
I00-mm )ei/)t, ?$"ro'%rbons "%$ t%n8s
s)%!! be provi"e" .it) "$8e in !ine
se'tion D,0 o& t)is st%n"%r",
1o2 @o!" bo-es s)o#!" be !o'%te" on /r%"e
or on sep%r%te e!ev%te" str#'t#res,
A"e0#%te sp%'e s)o#!" be provi"e"
%ro#n" 'o!" bo-es &or e%se o& oper%tion
%n" m%inten%n'e,
1p2 3!%re 8no'8 o#t "r#m &or t)e pro'ess
#nits s)o#!" be !o'%te" %t b%tter$ !imit
o& t)e #nit,
102 E!o. "o.n &%'i!ities 6 b#rie" "r#m
s)o#!" be !o'%te" %t one 'orner o& t)e
p!%nt &%rt)est &rom &#rn%'e or %n$ &ire"
e0#ipment %n" on t)e !ee-.%r" si"e o&
t)e #nit,
Gent &rom E!o. "o.n &%'i!it$ s)%!! be
minim#m :m %bove t)e )i/)est
e0#ipment &%!!in/ .it) in r%"i#s o& 1> m
&rom t)e vent st%'8,
1r2 Oper%tors '%bin m%$ be provi"e" in t)e
pro'ess #nit, T)e '%bin s)o#!" be
!o'%te" #p.in" si"e o& t)e #nit in non-
)%7%r"o#s %re% %n" %.%$ &rom "r%inin/ 6
s%mp!in/ &%'i!ities, T)e '%bin s)o#!" be
&or minim#m o''#p%n'$ o& t)e s)i&t
oper%tors o& t)e respe'tive &%'i!ities
on!$,
1s2 St%ir.%$s s)o#!" be provi"e" &or t)e
m%in %''ess,
1t2 *inim#m )e%"room #n"er vesse!s,
pipes, '%b!e r%'8s, et' s)o#!" be 2,1
meters,
1#2 40#ipment s)o#!" be sp%'e" to permit
#se o& mobi!e e0#ipment %n" po.er
too!s or servi'in/ %n" m%int%inin/
e0#ipment "#rin/ t#rn %ro#n" perio"s,
C2) E?i"ment s"a5in8 @it/ in "ro5ess
nitsB
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
(
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
*inim#m sep%r%tion "ist%n'es bet.een
v%rio#s e0#ipment .it)in pro'ess #nits
%re /iven in T%b!e-2, T)e "ist%n'es
re'ommen"e" s)o#!" be &o!!o.e" to t)e
e-tent &e%sib!e, 40#ipment sp%'in/
.it)in t)e pro'ess #nit m%$ be v%rie" to
meet t)e re0#irements spe'i&ie" b$
Li'ensors or o& t)e 4n/ineerin/
@ons#!t%nts, ?o.ever, t)e "ist%n'es
spe'i&ie" in notes to T%b!e-2 s)%!! be
met,
%2. LA$OUT OF STORAGE TAN+S
%2- General 5onsiderations
D,1,1 D$8e" 4n'!os#resK
1%2 (etro!e#m stor%/e t%n8s s)%!! be !o'%te"
in "$8e" en'!os#res .it) ro%"s %!!
%ro#n" t)e en'!os#re, A//re/%te
'%p%'it$ o& t%n8s !o'%te" in one "$8e"
en'!os#re s)%!! not e-'ee" &o!!o.in/
v%!#esC
:0,000 '#m, &or % /ro#p o& &i-e" roo&
t%n8s,
120,000 '#m, &or % /ro#p o& &!o%tin/
roo& t%n8s
3i-e" '#m &!o%tin/ roo& t%n8s s)%!! be
tre%te" %s &i-e" roo& t%n8s, ?o.ever in
'%se t)ese t%n8s %re provi"e" .it)
.in"o.s openin/ on t)e s)e!! %n" t)ese
.in"o.s .i!! not /et b!o'8e" in %n$
'%se, t)en t)ese m%$ be 'onsi"ere" %s
&!o%tin/ roo& t%n8s,
I& % /ro#p o& t%n8s 'ont%ins bot) &i-e"
%n" &!o%tin/ roo& t%n8s, t)en it s)%!! be
tre%te" %s % /ro#p o& &i-e" roo& t%n8s &or
t)e p#rpose o& %bove !imits,
1b2 D$8e" en'!os#re s)%!! be %b!e to 'ont%in
t)e 'omp!ete 'ontents o& t)e !%r/est t%n8
in t)e "$8e in '%se o& %n$ emer/en'$,
4n'!os#re '%p%'it$ s)%!! be '%!'#!%te"
%&ter "e"#'tin/ t)e vo!#me o& t%n8s
1ot)er t)%n t)e !%r/est t%n82 %n" t)e t%n8
p%"s .it)in t)e "$8e #pto t)e )ei/)t o&
t)e en'!os#re, A &ree bo%r" o& 200 mm
%bove t)e '%!'#!%te" !i0#i" !eve! s)%!! be
'onsi"ere" &or &i-in/ t)e )ei/)t o& t)e
"$8e,
1'2 T)e )ei/)t o& t%n8 en'!os#re "$8e
1in'!#"in/ &ree bo%r"2 s)%!! be %t !e%st
1,0 m %n" s)%!! not be more t)%n 2,0 m
%bove %ver%/e insi"e /r%"e !eve!, T)e
"$8e .%!! m%"e #p o& e%rt), 'on'rete or
so!i" m%sonr$ s)%!! be "esi/ne" to
.it)st%n" t)e )$"rost%ti' !o%", 4%rt)en
"$8e .%!! s)%!! )%ve not !ess t)%n 0,:-
meter .i"e &!%t se'tion on top &or
st%bi!it$ o& t)e "$8e .%!!,
1"2 3or e-'!#"e" petro!e#m, t)e '%p%'it$ o&
t)e "$8e" en'!os#re s)o#!" be b%se" on
spi!! 'ont%inment %n" not &or
'ont%inment on t%n8 r#pt#re, T)e
minim#m )ei/)t o& "$8e .%!! in '%se o&
e-'!#"e" petro!e#m s)%!! be :00 mm,
1e2 Sep%r%tion "ist%n'es bet.een t)e ne%rest
t%n8s !o'%te" in sep%r%te "$8es s)%!! not
be !ess t)%n t)e "i%meter o& t)e !%r/er o&
t)e t.o t%n8s or I0 meters, .)i')ever is
more,
1&2 (ro'ess e0#ipment s)o#!" not be !o'%te"
insi"e t)e "$8e, (#mp st%tions %n"
pipin/ m%ni&o!" s)o#!" be !o'%te"
o#tsi"e "$8e %re%s b$ t)e si"e o& ro%"s,
1/2 T%n8s !o'%te" over)e%" s)%!! meet s%&et$
"ist%n'es %n" s)%!! %!so )%ve "$8e"
en'!os#re o& R@@ 'onstr#'tion %n"
provi"e" .it) e&&i'ient "r%in%/e s$stem
&or t)e "$8e en'!os#re,
D,1,2 Gro#pin/B
1%2 Gro#pin/ o& petro!e#m pro"#'ts &or
stor%/e s)%!! be b%se" on t)e pro"#'t
'!%ssi&i'%tion, @!%ss-A %n" 6 or @!%ss-E
petro!e#m m%$ be store" in t)e s%me-
"$8e" en'!os#re, @!%ss-@ petro!e#m
s)o#!" pre&er%b!$ be store" in sep%r%te
en'!os#re, ?o.ever, .)ere @!%ss-@
petro!e#m is store" in % 'ommon "$8e
%!on/ .it) @!%ss-A %n"6or @!%ss-E
petro!e#m, %!! s%&et$ stip#!%tions
%pp!i'%b!e &or @!%ss-A %n"6 or @!%ss-E
respe'tive!$ s)%!! %pp!$,
1b2 4-'!#"e" petro!e#m s)%!! be store" in %
sep%r%te "$8e" en'!os#re %n" s)%!! not
be store" %!on/ .it) @!%ss-A, @!%ss-E or
@!%ss-@ petro!e#m,
1'2 T%n8s s)%!! be %rr%n/e" in m%-im#m
t.o ro.s so t)%t e%') t%n8 is
%ppro%')%b!e &rom t)e ro%" s#rro#n"in/
t)e en'!os#re, T)is stip#!%tion nee" not
be %pp!ie" to t%n8s storin/ e-'!#"e"
petro!e#m '!%ss,
T%n8s )%vin/ >0,000 '#m '%p%'it$ %n"
%bove s)%!! be !%i" in sin/!e ro.,
D,1,I 3ire .%!!sK
1%2 In % "$8e" en'!os#re .)ere more t)%n
one t%n8 is !o'%te", &ire.%!!s o&
minim#m )ei/)t :00mm s)%!! be
provi"e" to prevent spi!!s &rom one t%n8
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
)
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
en"%n/erin/ %n$ ot)er t%n8 in t)e s%me
en'!os#re,
1b2 A /ro#p o& sm%!! t%n8s e%') not
e-'ee"in/ 9 meters in "i%meter %n" in
%!! not e-'ee"in/ >,000 '#m in '%p%'it$
s)%!! be tre%te" %s one t%n8 &or t)e
provision o& &ire.%!!,
1'2 3or e-'!#"e" petro!e#m pro"#'t
stor%/e, &ire.%!! o& )ei/)t not !ess t)%n
I00 mm s)%!! be provi"e" b$ !imitin/
t)e n#mber o& t%n8s to 10 or t)e '%p%'it$
o& /ro#p o& t%n8s to >,000 '#m
.)i')ever is !o.er,
D,1, Gener%!K
1%2 T)e t%n8 )ei/)t s)%!! not e-'ee" one %n"
)%!& times t)e "i%meter o& t)e t%n8 or 20
m .)i')ever is !ess, 3or t)e inst%!!%tions
'overe" #n"er Oi! *ines Re/#!%tion, t)e
m%-im#m )ei/)t o& t)e t%n8, "$8e
re0#irements et', s)%!! be %s per Oi!
*ines Re/#!%tions
1b2 (ipin/ &rom 6 to %n$ t%n8 !o'%te" in %
"$8e" en'!os#re s)o#!" not p%ss t)ro#/)
%n$ ot)er "$8e" en'!os#re, (ipin/
'onne'te" to t%n8s s)o#!" r#n "ire't!$ to
o#tsi"e o& "$8e to t)e e-tent possib!e to
minimise pipin/ .it)in t)e en'!os#res,
1'2 T)e minim#m "ist%n'e bet.een % t%n8
s)e!! %n" t)e insi"e toe o& t)e "$8e .%!!
s)%!! not be !ess t)%n )%!& t)e )ei/)t o&
t)e t%n8,
1"2 T)ere s)%!! be %''ess on %!! &o#r si"es o&
e%') "$8e %re% %n" ro%"s s)o#!" be
!in8e" to minimi7e t)e e&&e't i& one ro%"
is '#t o&& "#rin/ t)e &ire,
%2) Se"aration Distan5es #et@een tan6s >
offsites fa5ilitiesB
T)e &o!!o.in/ stip#!%tions s)%!! %pp!$
&or t)e sep%r%tion "ist%n'es &or %bove
/ro#n" t%n8s storin/ petro!e#mC
1%2 3or !%r/er inst%!!%tion, minim#m
sep%r%tion "ist%n'es s)%!! be %s spe'i&ie"
in T%b!e- I %n" T%b!e-, T)e t%b!es %re
%pp!i'%b!e .)ere tot%! stor%/e '%p%'it$
&or @!%ss-A %n" @!%ss-E petro!e#m
pro"#'ts is more t)%n >000 '#m or t)e
"i%meter o& @!%ss-A or @!%ss-E pro"#'t
t%n8 is more t)%n 9 meters,
1b2 3or sm%!!er inst%!!%tion, minim#m
sep%r%tion "ist%n'es s)%!! be %s spe'i&ie"
in T%b!e->, T)is t%b!e is %pp!i'%b!e
.)ere tot%! stor%/e '%p%'it$ o& @!%ss-A
+ @!%ss-E is !ess t)%n >000 '#m %n"
"i%meter o& %n$ t%n8 storin/ @!%ss-A %n"
@!%ss-E petro!e#m pro"#'t "oes not
e-'ee" 9 meters, T%b!e-> s)%!! %!so be
%pp!i'%b!e &or t)e inst%!!%tion storin/
on!$ @!%ss-@ petro!e#m,
1'2 4-'!#"e" petro!e#m s)o#!" be tre%te" %s
@!%ss-@ petro!e#m &or t)e p#rpose o&
sep%r%tion "ist%n'es %n" T%b!e > s)%!!
be %pp!i'%b!e &or t)eir sep%r%tion
"ist%n'es,
D2. LA$OUT OF LPG FACILITIES
D2- General ConsiderationsC
8,1,1 L(G Stor%/eB
T)e re0#irements /iven be!o. %re
%pp!i'%b!e to %bove /ro#n" L(G stor%/e
&%'i!ities, 3or mo#n"e" L(G stor%/e,
re&er OISD-STD-1>0,
1%2 Gesse!s s)%!! be %rr%n/e" into /ro#ps
e%') )%vin/ % m%-im#m o& si- vesse!s,
@%p%'it$ o& e%') /ro#p s)%!! be !imite"
to 1>000 '#m, 4%') /ro#p s)%!! be
provi"e" .it) % '#rb .%!!,
1b2 An$ vesse! in one /ro#p s)%!! be
sep%r%te" &rom % vesse! in %not)er /ro#p
b$ % minim#m "ist%n'e o& I0 meters,
1'2 Sp)eres %n" b#!!ets s)%!! be tre%te" %s
sep%r%te /ro#ps .it) I0 meters
sep%r%tion "ist%n'e bet.een t.o /ro#ps,
1"2 Lon/it#"in%! %-es o& )ori7ont%! vesse!s
1E#!!ets2 s)o#!" not point to.%r"s ot)er
vesse!s, vit%! pro'ess e0#ipments %n"
'ontro! room,
1e2 Stor%/e vesse!s s)o#!" be !o'%te" "o.n
.in" o& pro'ess #nits, import%nt
b#i!"in/s %n" &%'i!ities,
1&2 L(G stor%/e vesse!s s)%!! not be !o'%te"
.it)in t)e s%me "$8es .)ere ot)er
!i0#i" )$"ro'%rbons %re store",
1/2 Stor%/e vesse!s s)%!! be !%i" o#t in sin/!e
ro. bot) in '%se o& t)e sp)eres %n"
b#!!ets, Stor%/e vesse!s s)%!! not be
st%'8e" one %bove t)e ot)er,
1)2 Spi!!%/e 'o!!e'tion s)%!!o. s#mp s)%!!
be !o'%te" %t % "ist%n'e .)ere t)e &!%mes
&rom s#mp &ire .i!! not impin/e on t)e
vesse!, T)is "ist%n'e s)%!! not be !ess
t)%n t)e "i%meter o& t)e ne%rest vesse! or
1> meters .)i')ever is )i/)er, T)e
'%p%'it$ o& t)e 'o!!e'tion s#mp s)%!! be
%s per OISD-STD1,
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
8
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
1i2 @#rb .%!! %ro#n" t)e stor%/e t%n8 s)%!!
)%ve % minim#m )ei/)t o& I0'm,
?o.ever it s)%!! not e-'ee" :0'm %t
s)%!!o. s#mp position, %s ot)er.ise
ev%por%tion o& spi!!e" L(G m%$ /et
%&&e'te",
8,1,2 L(G bott!in/ &%'i!it$K
1%2 L(G bott!in/ &%'i!ities s)o#!" be !o'%te"
%t % s%&e "ist%n'e &rom ot)er &%'i!ities
.it) minim#m in/ress to tr#'8in/ tr%&&i'
%n" "o.n.in" to stor%/e,
1b2 T)ere s)%!! not be %n$ "eep "it')es in
t)e s#rro#n"in/ %re% to %voi" L(G
sett!in/,
1'2 St%'8in/ %re%s &or empt$ %n" &i!!e"
'$!in"ers s)o#!" be !o'%te" sep%r%te!$,
@$!in"ers s)%!! be st%'8e" verti'%!!$,
3i!!in/ m%')ines %n" testin/ &%'i!ities
s)%!! be or/%ni7e" in se0#enti%! m%nner
"istin't!$ in % sep%r%te %re%,
1"2 3i!!e" L(G '$!in"ers s)%!! not be store"
in t)e vi'init$ o& '$!in"ers 'ont%inin/
ot)er /%ses or )%7%r"o#s s#bst%n'es,
1e2 Tr#'8in/ tr%&&i' s)%!! be smoot) to %voi"
b!o'8in/6 obstr#'tion &or !o%"in/ %n"
#n!o%"in/ o& '$!in"ers,
8,1,I E#!8 )%n"!in/ &%'i!itiesB
1%2 L(G tr#'8 !o%"in/6#n!o%"in/ /%ntr$
s)%!! be !o'%te" in % sep%r%te b!o'8 %n"
s)%!! not be /ro#pe" .it) ot)er
petro!e#m pro"#'ts,
*%-im#m n#mber o& L(G t%n8 tr#'8
b%$s s)%!! be restri'te" to 8 in one
/ro#p, T)e b%$ s)o#!" be "esi/ne" in
s#') % .%$ t)%t t)e "riverJs '%bin .i!! be
&%'in/ t)e e-it "ire'tion %n" s)%!! )%ve
no obstr#'tion,
1b2 L(G r%i! !o%"in/6#n!o%"in/ /%ntr$
s)%!! be !o'%te" on % sep%r%te r%i! sp#r
%n" s)%!! not be /ro#pe" .it) ot)er
petro!e#m pro"#'ts,
1'2 R%i! !o%"in/6#n!o%"in/ o& L(G s)o#!"
be restri'te" to % m%-im#m o& )%!& r%8e,
3#!! r%8e !o%"in/ 6 #n!o%"in/ is s)%!! be
"one on t.o sep%r%te r%i! /%ntries
)%vin/ % minim#m "ist%n'e o& >0m,
D2) Se"aration distan5es for LPG
fa5ilitiesB
*inim#m sep%r%tion "ist%n'es &or %bove
/ro#n" L(G &%'i!ities s)%!! be %s /iven
in T%b!e-: + T%b!e-D, 3or ot)er "et%i!s
re&er OISD-STD-1,
3or mo#n"e" L(G stor%/e, re&er OISD-
STD-1>0,
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
*
OISD-STD-118
----------------------------------------------------------------------------------------------------------------------------
-----------
E2. REFERENCES9
1, T)e (etro!e#m R#!es - 2002,
2, T)e St%ti' %n" *obi!e (ress#re Gesse!s
1Un&ire"2 R#!es, 1981
I, Oi! *ines S%&et$ Re/#!%tions - 198
, OISD-STD-10: on (ro'ess Desi/n %n"
Oper%tin/ ()i!osop)ies on Re!ie& %n"
Dispos%! S$stem,
>, OISD-STD-11: on 3ire prote'tion
3%'i!ities &or (etro!e#m Re&ineries 6
(ro'ess (!%nts
:, OISD-STD 11D on 3ire prote'tion
&%'i!ities &or (etro!e#m "epots %n"
termin%!s
D, OISD-STD- 1 on L(G bott!in/ p!%nt
%n" !%$o#ts,
8, A(I St%n"%r" 2:10Desi/n, 'onstr#'tion,
oper%tion, m%inten%n'e %n" inspe'tion o&
Termin%! %n" T%n8 &%'i!ities,
9, A(I Re'ommen"e" (r%'ti'es 2001 3ire
prote'tion in Re&ineries,
10, Loss (revention in pro'ess In"#stries b$
3r%n8 ( Lees,
11, N3(A I0, &!%mm%b!e %n"
@omb#stib!e Li0#i" @o"e,
"OISD hereby expressly disclaims any liability or responsibility for loss or damage
resulting from use of the OISD Standards/ uidelines/ !ecommended "ractices#"
1+
SEPARATION DISTANCES *ET(EEN *LOC+S>FACILITIES TA*LE , -
Sr no 3rom 6 To - ) 3 7 A C % D E -. -- -) -3 -7 -A -C
1 (ro'ess Units
Note-1 Note-I I0 I0 I0 :0 90 > > :0 > I0 :0 :0 I0 90
2 (ro'ess @ontro! Room
1Note 22
Note-I - Note- Note-> I0 :0 90 > > I0 Note-I - I0 1> I0 I0
I Stor%/e T%n8s @!%ss-A
I0 Note- Note-: Note-: Note-: I0 90 I0 I0 :0 1902 I0 TI :0 I0 >0
Stor%/e T%n8 @!%ss-E
I0 Note -> Note-: Note-: Note-: I0 90 I0 I0 :0 1902 I0 TI I0 I0 >0
> Stor%/e T%n8 @!%ss-@
I0 I0 Note-: Note-: Note-: I0 90 I0 I0 :0 1902 I0 TI I0 I0 >0
: (ress#rise" Stor%/eC
L(G6 @ + Li/)ter 6 ?2
:0 :0 I0 I0 I0 TD 90 I0 T: 90 1902 I0 TD > I0 :0
D 3!%re
1Note-D2
90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
8 E#!8 Lo%"in/ (OL
1R%i! 6Ro%"2
> > I0 I0 I0 I0 90 Note-8 Note-9 :0 I0 Note-10 TI :0 I0 >0
9 E#!8 Lo%"in/ L(G
1R%i! 6Ro%"2
> > I0 I0 I0 T: 90 Note-9 T: 90 1902 T: T: :0 I0 >0
10 3ire St%tion 6
3irst Ai" @enter
:0 I0 :0 :0 :0 90 90 :0 90 - I0 I0 12 12 I0 90
11 Eoi!er )o#se 6 (ro'ess
Unit ?e%ters 1Note-112
> Note-I 1902 1902 1902 1902 90 I0 1902 I0 - 1> >0 I0 I0 Note-
12
12 R%i! Sp#r
I0 - I0 I0 I0 I0 90 Note-10 T: I0 1> - I0 : 1> >0
1I Eo#n"%r$ .%!! %ro#n"
inst%!!%tion
:0 I0 TI TI TI TD 90 TI T: 12 >0 I0 - : I0 >0
1 Servi'e b#i!"in/s
:0 1> :0 I0 I0 > 90 :0 :0 12 I0 : : - I0 >0
1> @oo!in/ to.er,
I0 I0 I0 I0 I0 I0 90 I0 I0 I0 I0 1> I0 I0 - 1>
1: A(I Sep%r%tors 6 Oi!
s!#"/e pit
90 I0 >0 >0 >0 :0 90 >0 >0 90 Note-12 >0 >0 >0 1> -
General Notes to Ta#le0- B
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
%2 A!! "ist%n'es %re in meters, ATB in"i'%tes t)e t%b!e n#mber to be re&erre", A-B me%ns %n$ "ist%n'e s#it%b!e &or 'onstr#'tion%! or
oper%tion%! 'onvenien'e,
b2 A!! "ist%n'es s)%!! be me%s#re" bet.een t)e ne%rest points on t)e perimeter o& e%') &%'i!it$ e-'ept 1i2 In '%se o& t%n8 ve)i'!e !o%"in/ 6
#n!o%"in/ %re% .)ere t)e distance shall be from the center of nearest bay# ,ii- T)e "ist%n'es /iven in t)e br%'8ets 1 2 %re
&rom t)e s)e!! o& t)e ?e%ter 6 Eoi!er 6 3#rn%'e 6 Sti!!,
S"e5ifi5 notes to Ta#le0-9
Note-1: T)is s)%!! be I: meters 'onsi"erin/ t)e :-meter .i"e ro%" p%ssin/ t)ro#/) t)e 'enter, T)e e"/e o& t)e ro%" s)%!! not be !ess t)%n 1> meters %.%$ &rom t)e e"/e o&
t)e #nit,
Note-2C T$pe o& 'onstr#'tion s)%!! be %s per OISD-STD-1:I,
Note-IC (ro'ess 'ontro! room to (ro'ess #nits 6 boi!er )o#se 6 )e%ters t)e minim#m sep%r%tion distance shall be 30 m. For a control room attached to single
process unit or a boiler or a heater, the minimum separation distance shall be 16 m. For Gas processing plants, it shall be minimum 30 meters
irrespective of whether it is for one or more units.
Note-C S)%!! be :0 m &or non-b!%st 'onstr#'tion %n" I0 m &or b!%st resist%nt 'onstr#'tion,
Note->C S)%!! be > m &or non-b!%st 'onstr#'tion %n" I0 m &or b!%st resist%nt 'onstr#'tion,
Note-:C Sep%r%tion "ist%n'es bet.een t)e ne%rest t%n8s !o'%te" in t.o "$8es s)%!! be e0#iv%!ent to t)e "i%meter o& t)e !%r/er t%n8 or I0 m, .)i')ever is more, 3or
"ist%n'es .it)in % "$8e, it s)%!! be %s per T%b!e-I %n" T%b!e-
Note-D T)e "ist%n'es spe'i&ie" %re &or t)e e!ev%te" &!%re, 3or /ro#n" &!%re, t)ese "ist%n'es s)%!! be 1>0 m, 3or 4-p!or%tion + (ro"#'tion inst%!!%tions, t)is s)%!! be in
!ine .it) Oi! *ines Re/#!%tions
Note-8 Sep%r%tion "ist%n'e bet.een T%n8 tr#'8 /%ntr$ %n" .%/on /%ntr$ s)%!! be >0m,
Note-9 T)e sep%r%tion "ist%n'e s)%!! be >0 m, ?o.ever &or L(G t%n8 tr#'8 b#!8 !o%"in/ to (OL t%n8 tr#'8 b#!8 !o%"in/ it s)%!! be I0 m,
Note-10 Sep%r%tion "ist%n'e bet.een t%n8 tr#'8 /%ntr$ %n" r%i! sp#r s)%!! be >0 m,
Note-11C Eoi!er )o#se or )e%ter o& % pro'ess #nit is to be tre%te" %s % sep%r%te i"entit$ on!$ &or t)e 'onsi"er%tion o& s#rro#n"in/ b!o'8s 6 &%'i!ities, ?o.ever, )e%ter o& %
pro'ess #nit rem%ins %n inte/r%! p%rt o& t)e pro'ess #nit to .)i') it is %tt%')e" %n" in t)%t '%se t)e inter e0#ipment "ist%n'es s)o#!" be in!ine .it) T%b!e 2,
Note-12C @entr%!i7e" 6 'ommon A(I sep%r%tors, @orr#/%te" (!%te Inter'eptor 1@(I2, open oi! sep%r%tors s)%!! be '%te/ori7e" #n"er t)e s%me ris8 %n" s)%!! be !o'%te" %t %
"ist%n'e o& 90 meters &rom )e%ters 6 boi!ers, ?o.ever, i& t)ese %re 'overe" &rom t)e top %n" provi"e" .it) %"e0#%te ventin/ to s%&e !o'%tion, t)e minim#m
sep%r%tion "ist%n'e s)%!! be I0 meter,
SEPARATION DISTANCES *ET(EEN EFUIPMENT (IT&IN PROCESS UNIT TA*LE0)
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
Sr no 3rom 6 To
- ) 3 7 A C % D E -. -- -) -3 -7 -A -C
- 3ire" ?e%ter 6 An$ &ire"
e0#ipment
- 1> 1> 1> 22 1> 1> 20 1> 1> 1> - 18 : I0 1>
) Re%'tors
1> 2 2 : 8 D 1> D D I 1> > I 1> I
3 Disti!!%tion 'o!#mn
1> 2 I D > 1> > > 2 I 1> I I 1> I
7 A''#m#!%tors
?$"ro'%rbons
1> : 2 8 > 1> 2 I 1> I I 1> I
A @ompressors -
?$"ro'%rbons
22 8 D 8 I D 1> D D D D 1> I 20 D
C ?ot oi! p#mp
1> D > > D 1 D 1 1 2 2 1> I - 1> -
% 3#e! Oi! 6 ?@s "%$ t%n8
1> 1> 1> 1> 1> D T-> 1> 1> 1> 1> 1> 1> - 1> 1>
D (#mps &or '!%ss- A + %!!
%bove A#to-i/nition temp
20 D > D 1 1> 1 1 2 2 1> I - 1> -
E (#mps - &or %!! ot)er
?$"ro'%rbons
1> D > D 1 1> 1 1 2 2 1> I - 1> -
-. ?e%t 4-')%n/ers
1> 2 2 D 2 1> 2 2 2 2 1> 2 2 1> -
-- Air &in 'oo!ers &or
?$"ro'%rbons
1> I I I D 2 1> 2 2 2 - 1> 2 - 1> 2
-) 3ire" )e%ter Lo'%! 'ontro!
p%ne!
- 1> 1> 1> 1> 1> 1> 1> 1> 1> 1> - 10 - 1> >
-3 (ress#re vesse!s 6 Dr#ms o&
?$"ro'%rbons
18 > I I I 1> I I 2 2 10 2 I 1> 2
-7 *%in (ipe r%'8
: I I I I - - - - 2 - - I - 1> -
-A E!o. "o.n &%'i!it$
Dr#m, p#mp, vent st%'8
I0 1> 1> 1> 20 1> 1> 1> 1> 1> 1> 1> 1> 1> - 1>
-C Str#'t#r%! m%in
Te')no!o/i'%! p!%t&orms
1> I I I D - 1> - - - 2 > 2 - 1> -
General notes to Ta#le ,)9
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
%2 A!! "ist%n'es %re &%'e-to-&%'e '!e%r minim#m "ist%n'es in meters,
b2 A-B in"i'%tes s#it%b!e "ist%n'e %s per /oo" en/ineerin/ pr%'ti'es to meet 'onstr#'tion, oper%tion%! %n" m%inten%n'e re0#irements,
'2 Dist%n'es spe'i&ie" in T%b!e-2 %re t)e minim#m re'ommen"e" "ist%n'es t)%t t)e in"#str$ s)o#!" %")ere, T)ese 'o#!" be s#it%b!$
mo"i&ie" %s re0#ire" to s#it sp%'e 'onstr%ints %n" re!ev%nt en/ineerin/ pr%'ti'es e-'ept t)e &o!!o.in/s,
1i2 E!o. "o.n &%'i!it$ 1open pit t$pe2 6 oi! '%t')er s)%!! be !o'%te" %t % "ist%n'e not !ess t)%n I0 m &rom &ire" )e%ter 6 %n$ &ire"
e0#ipment, I& t)e b!o. "o.n "r#m is !o'%te" #n"er/ro#n" 6 oi! '%t')er is 'over .it) vent to s%&e !o'%tion, t)e minim#m
sep%r%tion "ist%n'e s)%!! be 1>m,
1ii2 3#e! Oi! "%$ t%n8 s)%!! be !o'%te" %t % "ist%n'e o& not !ess t)%n 1>m &rom e0#ipment e-'ept t)ose &%'i!ities s#') %s )e%t
e-')%n/er, p#mp 'onne'te" "ire't!$ .it) t)e 3#e! Oi! s$stem,
"2 3ire.%ter )$"r%nt 6 monitors s)%!! be minim#m 1> m %.%$ &rom t)e e0#ipment t)%t is to be prote'te",
e2 5%ter spr%$ "e!#/e v%!ve s)%!! be minim#m 1> m &rom e0#ipment )%n"!in/ )$"ro'%rbon,
&2 3#e! /%s 8no'8 o#t "r#m s)%!! be !o'%te" %t % minim#m sep%r%tion "ist%n'e o& 1> m &rom t)e )e%ter,
/2 Sep%r%tion "ist%n'es spe'i&ie" in ot)er OISD st%n"%r"s or e!se.)ere in t)is st%n"%r" 1ot)er t)%n T%b!e 22 s)%!! be &o!!o.e" %s
re'ommen"e",
SEPARATION DISTANCES *ET(EEN TAN+ > OFFSITE FACILITIES 0 GFor lar8e installations4 TA*LE 0 3

T%n8s 6 3%'i!it$
1 2 I > : D 8 9
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
1
Stor%/e T%n8 &or (etro!e#m @!%ss A 6 @!%ss E,
T T 1> 1> 1> 1> 8 1> 0,> D
*in 20 m
2
Stor%/e T%n8 &or (etro!e#m @!%ss @
T - 1> - 8 - - - 0,> D
*in 20 m
I
Stor%/e 6 3i!!in/ S)e" &or petro!e#m @!%ss A or '!%ss E
1> 1> - 8 1> 1> 8 1> 1>

Stor%/e 6 3i!!in/ S)e" &or (etro!e#m @!%ss @

1> - 8 - 8 - - - 10
>
T%n8 ve)i'!e !o%"in/ 6 Un!o%"in/ &or petro!e#m '!%ss A or '!%ss E
1> 1> 1> 8 - - 8 1> 20
:
T%n8 Ge)i'!e !o%"in/ 6 #n!o%"in/ &or @!%ss @
1> - 1> - - - - - 10
D
3!%me proo& 4!e'tri' *otor
8 - 8 - 8 - - 8 -
8
Non &!%me proo& e!e'tri' *otor
1> - 1> - 1> - 8 - -
9
Eo#n"%r$ .%!!
0,> D
*in 20 m
0,> D
*in 20 m
1> 10 20 10 - - -
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
SEPARATION DISTANCES *ET(EEN STORAGE TAN+S (IT&IN A D$+E TA*LE, 7
Item Eet.een &!o%tin/ Roo& T%n8s
@!%ss A + E
Eet.een &i-e" Roo& T%n8s @!%ss A +
E
Eet.een @!%ss @ (etro!e#m Stor%/e
t%n8s
1 A!! t%n8s .it) Di%meter #pto >0 meters
1DL"2 6
*in 10 m
1DL"2 6
*in 10 m
1DL"2 6 :
*in : m
2 T%n8s .it) Di%meter e-'ee"in/ >0 meters,
1DL"2 6 1DL"2 6 I 1DL"2 6
Gener%! notes to T%b!e I +
%2 A!! "ist%n'es %re in meters,
b2 A-B in"i'%tes s#it%b!e "ist%n'e %s per /oo" en/ineerin/ pr%'ti'es to meet 'onstr#'tion, oper%tion%! %n" m%inten%n'e re0#irements
'2 D + " st%n"s &or "i%meter o& !%r/er %n" sm%!!er t%n8s, Distances gi.en are shell to shell in the same dy/e
"2 In T%b!e I %!! "ist%n'es s)%!! be me%s#re" bet.een t)e ne%rest points on t)e perimeter o& e%') &%'i!it$ e-'ept in t)e '%se o& t%n8
ve)i'!e !o%"in/6#n!o%"in/ %re% .)ere t)e "ist%n'e s)%!! be me%s#re" &rom t)e 'enter o& e%') b%$,
e2 In T%b!e , Dist%n'es /iven %re s)e!! to s)e!! in t)e s%me "$8e,
&2 3or "i&&erent 'ombin%tion o& stor%/e t%n8s, t)e strin/ent o& t)e %pp!i'%b!e &orm#!%e s)%!! be 'onsi"ere" &or minim#m sep%r%tion
"ist%n'e,
/2 T)e "ist%n'e o& stor%/e t%n8s &rom bo#n"%r$ .%!! is %pp!i'%b!e &orK
1i2 3!o%tin/ roo& t%n8s )%vin/ prote'tion &or e-pos#re
1ii2 T%n8s .it) .e%8 roo&-to-s)e!! ;oint )%vin/ %pprove" &o%m or inertin/ s$stem %n" t)e t%n8 "i%meter not e-'ee"in/ >0 meters
)2 3or t)e &%'i!ities not 'overe" in T%b!e- I, re&er T%b!e-1,
SEPARATION DISTANCES *ET(EEN TAN+S>OFFSITE FACILITIES 0 GFor small installations4 TA*LE , A
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
1 2 I > : D 8 9 10 11 12 1I
1 Stor%/e T%n8 @!%ss A 0,>D 0,>D
0,>D 6
:,0
9 9 9 1> 1> 1> I 1> 1> 1>
2 Stor%/e T%n8 @!%ss E 0,>D
0,>D 0,>D 6
:,0
9 0,>D 0,>D 9 ,> ,> I ,>
D
*in ,>
D
*in ,>
I Stor%/e T%n8 @!%ss @
0,>D 6
:,0
0,>D 6
:,0
- 9 0,>D - 9 ,> - - -
0,>D
*in I,0
0,>D
*in I,0

Stor%/e 6 3i!!in/ s)e" &or

petro!e#m @!%ss -A
9 9 9 - ,> : 9 9 9 I 9 9 9
>
Stor%/e 6 3i!!in/ s)e" &or
petro!e#m @!%ss -E
9 0,>D 0,>D ,> - 1,> 9 ,> ,> 1,> ,> ,> ,>
:
Stor%/e 6 3i!!in/ s)e" &or
petro!e#m @!%ss -@
9 0,>D - : 1,> - 9 ,> - - - I I
D
T%n8 ve)i'!e Lo%"in/ 6
#n!o%"in/ @!%ss - A
1> 9 9 9 9 9 - 9 9 I 9 9 9
8
T%n8 ve)i'!e Lo%"in/ 6
#n!o%"in/ @!%ss - E
1> ,> ,> 9 ,> ,> 9 - ,> 1,> ,> ,> ,>
9
T%n8 ve)i'!e Lo%"in/ 6
#n!o%"in/ @!%ss - @
1> ,> - 9 ,> - 9 ,> - - - I I
10
3!%me proo& 4!e'tri'
motors
I I - I 1,> - I 1,> - - I - -
11
Non 3!%me proo& 4!e'tri'
motors
1> ,> - 9 ,> - 9 ,> - I - - -
12
O&&i'e b#i!"in/, stores,
%menities
1>
D
*in ,>
0,> D
*in I,0
9 ,> I 9 ,> I - - - -
1I Eo#n"%r$ .%!! 1>
D
*in ,>
0,>D
*in I,0
9 ,> I 9 ,> I - - - -
General notes to Ta#le ,A9
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
%2 A!! "ist%n'es %re in meter %n" t)e t%b!e spe'i&ies t)e minim#m re0#irement,
b2 A-B in"i'%tes s#it%b!e "ist%n'e %s per /oo" en/ineerin/ pr%'ti'es to meet 'onstr#'tion, oper%tion%! %n" m%inten%n'e re0#irements
'2 ADB in"i'%tes t)e "i%meter o& t)e !%r/er t%n8,
"2 Dist%n'es /iven &or t)e t%n8s %re s)e!! to s)e!! in t)e s%me "$8e,
e2 5)ere %!tern%te "ist%n'es %re spe'i&ie" 1!i8e 0,> D 6 :,02, t)e minim#m t)ereo& s)%!! be #se",
&2 A!! "ist%n'es s)%!! be me%s#re" bet.een t)e ne%rest points on t)e perimeter o& e%') &%'i!it$ e-'ept in '%se o& t%n8 ve)i'!e !o%"in/
6#n!o%"in/ %re% .)ere t)e "ist%n'e s)%!! be &rom t)e 'enter o& e%') b%$,
/2 (i/ !%#n')er6re'eiver %t !i0#i" )$"ro'%rbon )%n"!in/ pipe!ine inst%!!%tions s)o#!" be !o'%te" %t !e%st > m &rom bo#n"%r$,

SEPARATION DISTANCES FOR LPG FACILITIES TA*LE 0 C

"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
Sr no, 3RO* 6 TO 1 2 I > : D 8
1 L(G Stor%/e vesse!s Note-1 TD I0 I0 >0 I0 1> :0
2 Eo#n"%r$ .%!! 6 /ro#p o& b#i!"in/s not
%sso'i%te" .it) L(G p!%nt
TD - I0 I0 >0 I0 I0 -
I S)e" &or &i!!in/ %n" stor%/e o& L(G, @o!"
rep%ir s)e", @$!in"er ev%'#%tion &%'i!ities
I0 I0 1> I0 >0 I0 1> :0
T%n8 Tr#'8 Lo%"in/ 6 #n!o%"in/ /%ntr$ I0 I0 I0 I0 >0 >0 I0 :0
> T%n8 .%/on /%ntr$ >0 >0 >0 >0 >0 >0 I0 :0
: R%i! sp#r I0 I0 I0 >0 >0 >0 I0 :0
D (#mp )o#se 6 @ompressor )o#se 1L(G2 1> I0 1> I0 I0 I0 - :0
8 3ire 5%ter p#mp )o#se :0 - :0 :0 :0 :0 :0 -
TA*LE, %
SEPARATION DISTANCES *ET(EEN LPG STORAGE HESSELS AND *OUNDAR$ (ALL > GROUP OF *UILDINGS NOT
ASSOCIATED (IT& LPG FACILITIES
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"
@%p%'it$ o& 4%') vesse! in @#m o& .%ter
10 - 20 21 - 0 1 - I>0 I>1 - >0 >1-D>0 D>1 - I800
Dist%n'e in meters
1> 20 I0 0 :0 90
General Notes to Ta#le0C ! Ta#le0%B
%2 T%b!e-: is %pp!i'%b!e &or tot%! stor%/e o& %bove 100 Tonnes,
b2 A!! "ist%n'es %re in meters
'2 A- Ain"i'%tes s#it%b!e "ist%n'e %s per /oo" en/ineerin/ pr%'ti'es to meet 'onstr#'tion, oper%tion%! %n" m%inten%n'e re0#irements
"2 TD in"i'%tes T%b!e DK
e2 Dist%n'e o& st%b!in/ !ine s)%!! be %s per R%i!.%$ St%n"%r"s,
S"e5ifi5 Notes to Ta#le0 CB
Note1C T)e "ist%n'e s)%!! be 2 meters or 16 o& t)e s#m o& t)e "i%meters o& t)e %";%'ent vesse!s or )%!& t)e "i%meter o& t)e !%r/er o& t)e
t.o %";%'ent vesse!s in t)e s%me /ro#p .)i')ever is /re%ter,
"OISD hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of the OISD Standards/
uidelines/ !ecommended "ractices#"