pressure vessels - rapture hazard & prevention
TRANSCRIPT
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Newsletter
Clean A ir Ac t 112(r) Risk Management Program (RMP) E P C R A
Ma rch-April 2008 US EPA Region 10
Inside This Issue
1 Ima ge s of Pressure
Vessel Failu res
2 Rupture Hazard of
Pressure Ve ssel
4 Case History: Fau ltyWelds caused
Pressure Vessel
Explosion and Fire
5 Proc ess Safety
Informatio n for Pressure
Vessels and o ther
Process Equip ment
6 Pressure Vessel Hazard
Reduction
7 Atmo sphe ric Tank is
Not a Pressure Vessel
8 Safe ty Ale rt: Liqu ified
Gas Cylinder Failure
9. Free RMP Portla nd
Training
9 DHS CFATS do no t
Impact EPCRA or 112r
Reporting
9. EPCRA Tier2 Reports
due March 1st
CEPP Newsletter
US EPA Reg ion 10, ERU ECL-116
1200 6th Avenue, Suite 900
Sea ttle, Washingto n 98101
206.553.1679 • Fax: 206.553.0124
http://www.epa.gov/r10earth/1
12r.htm
For RMP : Kelly Huynh at
For EPCRA: Suzanne Powe rsat
For free Subscription :
allen.step hanie@ep a .gov
This issue fea tures:
Pressure Vessels: Rupture Hazards and Prevention
Images of Pressure Vessel
Failures
An internal non-co de w eld had
we akene d the she ll of this vessel. The tank explode d c ausing the release
of anhyd rous am monia to the
atmosphere.
This vessel exploded killing one
op erator and triggering the release
of aq ua a mmo nia. The tank had no
relief device for overpressure
protec tion, nor did it have b asic
proc ess c ont rol or alarm
instrumentation.
The sc ene follow ing a vessel fa ilure
and fire. The vessel ruptured due to overpressurization, releasing
flam ma ble mat erial whic h then
ignited . Four workers we re killed .
(Photo of t ank b efore explosion). The
propane ta nk that c aught fire a nd
explode d after a vehicle p lowed
into the ta nk’s unprotec ted piping.
The explosion killed two voluntee r
firefighters and injured several
emergency responders.
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PAGE 2 Chemica l Emer enc Prevention & Plannin Newsletter
ProblemImproperly operated or maintained pressure vessels
can fail catastrophically, kill and injure workers and
others, and cause extensive damage even if the
c ontents are b enign.
Example of Accidents
Three workers were killed and a numb er of othe rs
were injured when a high-pressure vessel containing
air and wa ter rup tured . The ve ssel that ruptured wa s
originally designed with a working pressure of 1740
pounds per square inch (psi), but was operatingbetween 2000-3000 psi. After a number of years of
service , the vessel deve loped a p in-ho le leak. The
leak was repaired but not in adherence with
recognized codes. About a month later, the vessel
failed c ata strop hic ally at the we ld a rea . The ve ssel
ripped apart and rocketed through the roof. Major
pieces of shrapnel weighed from 1000 to 5000
po unds. Som e p iece s we re thrown a half mile aw ay.
Fortunately, people on a nearby highway and a
nearby commuter railway narrowly missed injury.
Dama ge to the p lant w as extensive a nd a po rtion of
the state was without phone and electrical servicesfor ma ny ho urs.
Hazard Awareness
This ac c ident d em onstrate s the p otential dange r of
pressure vessels if they are not properly designed,
constructed, operated, inspected, tested, or
rep a ired . The higher the op erat ing p ressure and the
larger the vessel, the more energy will be released in
a rupture a nd the wo rse t he c onseq uenc es. It should
be emphasized that the danger exists even if the
vessel contents are not flammable, reactive, or
explosive. In the c ase ab ove , a vessel c onta ining onlywater and air ruptured and released great energy.
Had the contents of the vessel been flammable
and/or toxic, the consequences would probably
have b een ma gnif ied.
Factors in Pressure Vessel Failure
The following conditions and factors have played
major roles in pressure vessel accidents:
Operation above the maximum allowable
Rupture Hazard of Pressure Vessels
working a nd test p ressures. Improper sizing or pressure setting of relief
devices.
Improper operation of relief devices due to
faulty maintenance and failure to test
regularly.
Failure of the vessel due to fatigue from
repeated pressurization, general thinning
from c orrosion o r erosion, loc a lized corrosion,
stress corrosion cracking, embrittlement,
ho les and leaks.
Fa ilure to inspe c t freq uently enoug h.
Improper repair of a leak or other defect
involving welding and annealing that
embrittles and further weakens the vessel.
Hazards posed by a vessel can be worse if
repair welds are made without shutting
down and de-inventorying the vessel. If a
pressure vessel is repaired without removing
the water, the quench effect of the water
c an e mb rittle the stee l.
Overpressuring and failure of the vessel due
to e xothe rmic rea c tion or po lymeriza tion.
Vessel expo sure to fire.
Pressure Vessel Laws
Requirements for pressure vessels vary widely from
sta te to sta te. Many stat es have a b oiler law, but
others do not. Even for those states that have a
boiler law, typical practices (e.g., inspecto
requirements) for pressure vessels may vary. State
boiler laws that require general adherence to
Am eric an Soc iety of M ec hanica l Eng ineers (ASME)
codes or National Board Inspection Code (NBIC)
usually require the following for each pressure
vessel: Registering with the state boiler and pressure
vessel d ep a rtme nt.
Designing and constructing in accordance
with Sec tion VIII of the ASME Boiler a nd
Pressure Ve ssel Code (ASME Code), Rules fo
Construc tion o f Pressure Vessels, Division 1
which covers vessels operating between 15
psi and 3000 psi.
Ma rking the ASME Co de o n the vessel w ith- more -
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PAGE 3Chemica l Emer enc Prevention & Plannin Newsletter
specified information that includes the
ma nufac turer, the serial num ber, the yea r built,
and the maximum allowable working pressure
for a specific temperature, and any special
suitability such as for low temperature and
poisonous gases or liqu ids.
Having the vessel approved for installation with
the submission of drawings, specifications,
welding d etails and ca lc ulations, and having a n
authorized inspector be satisfied with the
we lding a nd witness the testing.
Operating at pressures below the maximum
allowable working pressure with pressure
relieving d evice s set a c c ording to the A SME
Co de; testing a t reg ular inte rva ls.
Periodically inspecting for corrosion and
defects, and testing according to the NBICMa nua l for Boiler and Pressure Vessel Inspec to rs
or American Petroleum Institute (API) 510,
"Pressure Vessel Inspec tion C ode," for vessels in
the p etrochem ic al industry.
Repairing or altering only according to a plan
approved by an authorized inspector and
cond uc ted by test-qua lified we lders. The
inspector must be satisfied that the repairs are
performed according to NBIC or API 510 and
specify any necessary nondestructive and
pressure testing. Increasing the maximum
allowable working pressure or temperature is
considered an alteration whether or notphysica l work is done.
In states with no pressure vessel law, good safety
prac tices req uire that simila r preca utions be follow ed
in the design, construction, welding, testing, marking,
operation, inspection, and repair of any pressure
vessel. The ASME Cod e should b e used for the design,
construction, initial testing, and operation of pressure
vessels. The NBIC or API 510 should be used for
maintenance and inspection and subsequent testing.
Boiler and machinery insurance companies, some
pressure vessel sup p liers, or jurisd ic tion-licensedindependent contractors can provide authorized
inspec to rs.
Evaluating Potential Explosion Hazard
Facilities, particularly those without formal pressure
vessel inspection programs, should survey their
vessels, review pertinent history and data to identify
hazards, and prevent vessel rupture or catastrophic
failure.
Among the questions to be asked and answered are
the follow ing:
1) Does the vessel op erate a bo ve 15 psi, and wa s
it designed, fabricated, and constructed
ac c ording to the ASME Cod e o r othe
app lica ble c ode?
Is the vessel co de lab eled or stamp ed ?
Is the operating pressure and size of the vesse
known?
2) Is the vessel maintained, inspected, and
rep a ired acc ording to the NBIC a nd / or API 510?
3) Are the ratings and settings of the relieving
de vic es ap propriate?
Are the devices tested regularly and howrecently?
4. Is the vessel inspec ted period ica lly?
What a re the c riteria fo r inspe c tion freq uenc y?
When w as it last inspec ted externa lly?
When w as it last inspec ted internally?
Did the inspection disclose general thinning of
walls due to corrosion, localized corrosion, stress
corrosion cracking, embrittlement, holes, leaks
or any other defects that required follow up?
Were they followe d up?
5. Has the ve ssel be en repa ired ?
Were the plan of repair, welding techniques
and safety tests approved by a certified o
authorized inspector?
Was the welding done by a qualified welder?
Were the welding performance qualification
tests ap proved by an inspe c tor?
Was the vessel tested after the repair was
completed?
6. Was the vessel down rated and were the
nec essary cha nge s in ope ra ting c ond itions andrelief d evice settings ma de?
7. Are exothermic reactions carried out in the
vessel?
Does the vessel have an emergency relief
system to hand le runaw ay rea c tions?
(Referenc e: EPA Public a tion 550-F-97-002A)
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PAGE 4 Chemica l Emer enc Prevention & Plannin Newsletter
This incident provides information regarding an
explosion and fire that occurred at the Marcus Oil
fac ility in Houston, Texa s in Dec em ber 2004.
Investigators determined that the explosion resulted
from fa ulty weld s in a steel p roc ess p ressure ve ssel.
The w eld used to c lose the te mp orary op ening on
Tank 7 failed du ring the inc ident b ec ause the rep ai
weld (see figure) did not meet generally accepted
industry quality standards for pressure vesse
fab rica tion. The o riginal, flame -cut surfac e was no tground off the plate edges before the joint was re-
welded, and the weld did not penetrate the ful
thickness of the vessel head. Furthermore, the welds
c onta ined exce ssive po rosity (holes from ga s bub b les
in the we ld). These de fec ts significantly deg rade d the
streng th of the we ld.
o Design Issues – Relief Valves
Inve stiga to rs found tha t Tanks 5, 6, 7, and 8, the
nitrogen storage vessels, and the compressed-ai
storage vessel were not equipped with pressure-reliede vices, as req uired by the Ame ric an Soc iety o
Me cha nica l Eng inee rs (ASME) Boiler a nd Pressure
Vessel Code. However, this was not a factor in
causing the incident.
o Process Changes
Marcus Oil installed a connection between the
nitrogen and compressed-air systems to provide rapid
pressurization of the nitrogen system when the- more -
Case History: Faulty Welds Caused Pressure Vessel
Explosion and Fire
o Discussion
In its final investigation report on the explosion, the
U.S. Chemical Safety Board (CSB) describes the
violent explosion of a 50,000-pound steel pressure
vessel a t the Ma rc us Oil and Che mica l fac ility. The
explosion was felt over a wide area in Houston andignited a fire tha t b urned for seve n hours. Seve ra l
residents were c ut b y flying gla ss.
Building and car windows were shattered, and
nearby buildings experienced significant structural
and interior da ma ge.
The Ma rcus Oil fac ility refines polyethylene wa xes for
industria l use. The c rud e w axes, which a re ob ta ined
as a byproduct from the petrochemical industry,
contain flammable hydrocarbons such as hexane.
The w axes a re p roc essed and purified inside a va riety
of steel p roc ess vessels. The vessel tha t exp lod ed wasa horizontal tank 12 feet in diameter, 50 feet long,
and operated at a pressure of approximately 67
po unds per squa re inch.
The c ase study rep ort and acc om pa nying safe ty
rec omm enda tions have be en p osted to the CSB web
site (http://www.csb.gov).
o Welding Issues
Investiga tors dete rmined tha t the fa iled vessel, known
The sc ene following t he explosion
as Tank 7, ha d b ee n mo d ified by Ma rcus Oil to insta l
internal heating coils, as were several other pressure
vessels at the facility. Following coil installation, each
vessel wa s resea led by we lding a stee l plate over the
2- foot-d iame ter temp orary opening. The repa ir we lds
did not meet accepted industry quality standards fo
pressure ve ssels. Ma rcus Oil did no t use a qua lified
welder or proper welding procedure to reseal the
vessels and did not pressure-test the vessels after the
welding was co mp leted .
Rec overed p atc h plate weld from failed Tank 7
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PAGE 5Chemica l Emer enc Prevention & Plannin Newsletter
The EPA Risk Management Program (RMP) requires the facility to complete a compilation of written process
sa fety informa tion ……. This p roc ess sa fety informa tion sha ll include informa tion p ertaining to the haza rds of
the regulated substances used or produc ed by the p roc ess, informat ion pe rta ining to the tec hnology of the
proc ess, and information p ertaining to the equipment in the process. (40 CFR 68.65.)
For equipment in the process, you must include information on:
Materials of construction
Piping and instrument diagrams (P&IDs)
Elec tric a l c lassific a tion
Relief system design and design b asis
Vent ila tion system design
Design c od es & standa rds em ployed
Safety systems
Ma terial and ene rgy ba lanc es for proc esses built a fter June 21, 1999
nitrog en p ressure w as too low to move m olten wa x
from the tanks to the p roc ess unit. The c om pa ny
assumed that compressed air was an acceptable
substitute for nitrogen during processing. However,
investiga tors de termined tha t ma nag eme nt d id not
evaluate the hazards that resulted from this process
change. Pressurizing the nitrogen system with
compressed air contaminated the nitrogen gas
with as much as 18 percent oxygen — a level
sufficient to support combustion.
Marcus Oil used air instead of nitrogen to boost the
pressure of the vessel, and the oxygen inside the
tank allow ed the ignition o f the flamma ble m aterial,
mo st likely by sparks from the m eta l fragme nts. The
fire spread back into the damaged tank and
c aused a v iolent explosion, which p rop elled the 25-
ton vessel mo re than 150 feet.
o Pressure Vessel Codes
The ASME Boiler a nd Pressure Vessel Co de provides
rules for pressure ve ssel design, fa bric a tion, we ld
procedures, welder qualifications, and pressure
testing. In addition, the National Board of Boiler and
Pressure Ve ssel Inspec to rs ha s esta b lished the
National Board Inspection Code for pressure vesse
rep a irs and a lterations. The c od e req uires a lterations
to pressure vessels to be inspected, tested, certified
and stamp ed.
"If the provisions of internationally recognized pressure
vessel safety codes had been required and
enforced, this accident would almost certainly not
have oc curred ," CSB Boa rd Memb er John S. Bresland
said.
o Implications
The inc iden t a t the Ma rcus Oil fac ility unde rsc ores theimportance of compliance with pressure vessel and
inspection codes and the use of qualified welders
Equally important is understanding the potentia
hazards introd uced with p roc ess c hang es.
(Referenc es: CSB; DOE/ Richa rd Higg ins)
Process Safety Information for Pressure Vessels
and other Process Equipment
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PAGE 6 Chemica l Emer enc Prevention & Plannin Newsletter
Pressure ve ssels must c om p ly with a ll reg ulations,industry codes, and standards to keep vessels in
safe condition to handle design pressures and
temperatures. Areas to review could include, but
are not limited to, the follow ing:
Design
At a minimum, pressure vessels should be designed
in ac c orda nce with the Americ an Soc iety of
Mechanica l Eng ineers (ASME) Cod e for ma teria l
c ontents of va rying cha rac te ristics. Fac ilities shou ld
address any added concerns about the
temperature and characteristics of vessel contents
(e.g., toxic, corrosive, reactive, or flammable
contents). When the vessel contents are changed
from those the vessel as designed for, a risk analysis
should be c onduc ted to d ete rmine if it is still sa fe for
the ne w m ate rials.
Certification of Vessels
Ma ny sta tes have a b oiler law , but othe rs do no t. Instates with a pressure vessel law, all pressure vessels
must be certified by the relevant state authority as
me eting req uirem ents of the ASME Co de. When apressure vessel cannot be constructed to comply
fully with the ASME Code, how eve r, the Na tional
Board Inspection Code (NBIC) provides a
procedure by which the pressure vessel may get
sta te app rova l without b ea ring the ASME symbol.
This p roc ed ure includ es submitta l of d rawings,
calculations, welding procedures, service
conditions, welding qualification and performance
tests, and professional engineering certifications.
This should be d one befo re a ny construction b eg ins.
When a fac ility finds an unm arked vessel or is about
to b ring one into a sta te , simila r informa tion p lus therepair history should be submitted to the state
pressure vessel authority for review and approval
befo re use b eg ins or co ntinues.
On the other hand, when a pressure vessel is
located in a state without a pressure vessel law, is
not ma rked with the ASME symb ol, and there a re
doubts about the safety of the vessel, the
information listed above should be submitted to a
pressure vessel consulting engineer and authorized
inspec tor for a sa fety review.
Inspection of Vessels
The NBIC a nd Am erican Pet roleum Institute (API) 510
require that vessels be periodically inspected externally
and internally. External inspections are made more
frequently and Involve visual and nondestructive
examination. An internal inspection is more difficult to
perform because it usually requires a confined space
entry and the vessel must be taken out of service
cleaned, and prepared. General or localized thinning
of the internal walls due to corrosion or erosion is a
po tential problem a nd must b e m onitored , with rec ords
kep t of the rate o f thinning . When the vessel is rea c hing
the e nd of its useful life, the p eriod be twe en inspe c tionsis shortened so that the vessel may be taken out of
service before it can become dangerous. An interna
test may also reveal stress corrosion, cracking, pitting
embrittlement, and other defects that could weaken
the vessel. In addition to the vessel itself, the relieving
devices must also be tested. When practical, this can
be do ne in plac e for vessels conta ining non-haza rdo us
substances, but for vessels containing hazardous
substances without special controls (e.g., scrubbers)
safety relief valves must be taken off to ascertain
whether their settings are correct. How this can be
do ne sa fely and c onveniently should be c onside red .
Maintenance
In a dd ition to m aintena nce requirem ents, the NBIC a nd
API 510 include specific preheating and postheating
requirements. Large temperature differences between
the outside and inside surfaces of the vessel - during
repair or other welding - must be avoided to minimize
embrittling or stressing the metal. Nondestructive
examinations may include radiographic, ultrasonic
liquid penetrant, magnetic particle, eddy current
visua l che cks, and leak testing.
Operation of Vessels
Operators should consider process start-up and
shutdown conditions, possible process upsets, and any
other unusual conditions that might cause overpressure
prob lems. The ASME Co de includ es rec om me nded
pressure d ifferentia ls betw ee n sa fety va lve set p ressures
and maximum allowable working pressure, as well as
the pressure differential settings of the relieving devices
whe n there are multiple d evice s.(Reference: EPA)
Pressure Vessel Hazard Reduction
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PAGE 7Chemica l Emer enc Prevention & Plannin Newsletter
Train maintenanc e p ersonnel to a ntic ipate
c onditions that could je opardize their safety o r the
safety of others.
A Ma intenanc e Supe rvisor indica ted he d id not know
pressurizing the tank was a dangerous practice or that
anything could go wrong. Working with pressurized
equipment requires a level of care and engineering
knowledge which was not available in theMaintenance Department. Maintenance workers need
safe ty training be c ause they are continually p resente d
with a complex and constantly changing set of
activities. Maintenance workers travel throughout the
entire plant in the c ourse o f their work. Prope rly trained
they can provide information that is beneficial to the
other plant activities while conducting their work.
Inform employees that no equipment is to be
altered or retrofitted. Establish a procedure for a
qua lified p erson(s) to review propo sed equipmen
changes. Conduct periodic plant audits
spec ifica lly for non-standa rd use o f equipm ent.
When equipment is retrofitted, altered or used in a way
for which it was not designed or for a purpose othe
than originally intended, unintentional consequences
may result. A procedure for a qualified person(s) to
review equipment change, modification or use should
be de velope d a nd impleme nted . Since there is alwa y
pressure to “make do” with what is at hand or adapt
what is available, periodic plant audits to detect
unapp roved equipment c hange or mod ifica tion should
be c onducted.(Referenc e: MSU)
On June 21, 2001, a worker died when a 500-gallon
at mospheric storage ta nk he wa s em pt ying o f wa ste o iland water exploded from its base. He was pressurizing
the c ontents of ta nk using c om pressed a ir to spe ed up
dra ining . Comp ressed a ir a t 120 psi wa s used . The ta nk
was not approved for use as a pressurized vessel.
According to a co-worker, the practice of pressurizing
the tank had been going on for 6 years without
ma nag eme nt’s aw areness. The p roc ed ure had be en
passed from maintenance worker to maintenance
worker.
The forc e of the explosion p rop elled the ta nk 500 feet in
the air over the p lant fenc e a nd a nearby ba nk pa rking
lot o nto a busy road . The event resulted in OSHA issuing
one serious c itation und er the G ene ra l Duty Clause for
failing to establish, train on and enforce use of a
procedure to empty waste oil containers which would
prohibit application of air pressure to a container not
designed or rate d as a p ressure vessel.
What Can You Do
Conduct job safety a nalyses and establish standard
operating procedures for routine ma intenanc e tasks
and train the maintenance personnel in these
procedures.
A job hazard analysis is a procedure used to review each
job, identify potential hazards, and design actions and
p roc ed ures to e liminat e or control the hazards. Input from
workers who usually perform the tasks is important. Of
primary importance is the recognition that hazards exist.
Even though maintenance work is complex and
c onstantly cha nging , there a re routine ta sks. The
transferring of waste oil and water was a routine task. A
job hazard analysis may have identified the potential for
employee injury pressurizing a tank that was not
approved as a pressurized vessel.
Do not pressurize a container not approved as a
pressure vessel.
This fata lity involved the improp er use of e qu ipme nt. The
task was commonly conducted, yet no one associated
with the practice was aware of the consequences of
pressurizing a vessel not approved for use under pressure.
OSHA ha s regulations rega rding the use a nd inspe c tion of
p ressure ve ssels. ASME, the Com pressed Ga s Assoc iat ion,
and the A meric an Petroleum Institute a mo ng others have
standards and guidelines governing the use of pressure
vessels.
Atmospheric Tank is Not a Pressure Vessel!
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PAGE 8 Chemica l Emer enc Prevention & Plannin Newsletter
Safety Alert
Liquefied Gas Cylinder Failure
A liquid nitrog en cylinder in a university chem istrylabo rat ory cata strop hica lly failed due to ove r pressurizat ion,
causing substantial dam ag e. Fortunately the incident oc c urred
at 3 AM a nd the building w as not oc c upied, so there were no
injuries. The ove r pressuriza tion b lew out the bottom of the
c ylinder and prop elled the c ylinde r upw ards. The c ylinder
pressure relief va lve a nd rupture
disc had been replac ed b y two
brass p lugs a t som e t ime in the
pa st by a n unknown p erson.
Before the inc ident, the c ylinder
ma y have b een leaking through
an old g asket, providingsufficient relea se of g as to
preve nt o ver p ressure.
Ap proxima tely twelve ho urs be fore the e xplosion, the leaking ga sket ha d
be en replac ed and the c ylinder refilled w ith liquid nitrog en. With the new
ga sket, the cylinder wa s now com pletely sea led, and pressure c ould b uild
up . The cylind er ruptured when its internal p ressure rose a bove 1000 psi. The
c at astrop hic failure o f the nitrog en c ylinder wa s a result of the removal of
the ressure relief dev ice s.
Intac t c ylinde r and rem ains of ruptured c ylinde r
Laboratory Damage
Did you know?
Lique fied and p ressurized gas c ylinders a re
c om monly used in lab orato ries and in
manufacturing plants.
In this incident , the force relea sed by the
failure o f the c ylinder wa s estimated at
250,000 pound s (~ 113,000 kilog ram sforce ).
Cryog enic storag e m ust e ither be
refrigerated to m aintain the low
tem perature a nd p ressure, or slowly blee d
off eno ugh vapo r to ma intain pressure
and coo l the rem aining inventory.
An incide nt this po we rful ca n relea se
other hazardous ma terials in nea rbyconta iners, vessels, and p iping, c ausing a n
even more seve re incide nt.
What can you do?
Never mod ify any eq uipm ent c ontaining ha zardous
ma terials or energy w ithout qualified eng ineering
evaluation, and a lwa ys co nduct a mana gement of
cha nge review.
If you observe a high p ressure o r liquefied ga s c ylinder
that a pp ea rs to ha ve b een m od ified , or is co rrod ed or
othe rwise da ma ge d , rep ort it to supe rvision
immed iately so it ca n be rem oved from servic e.
Ensure that cylinders are properly maintained and
period ica lly inspec ted , includ ing the p ressure relief
devices.
If you use p ressurized gas c ylind ers, ma ke sure you a re
p rop erly trained in the sa fe ha nd ling of high p ressurecylinders.
Share th is incident with your co llea gues in the
lab oratory who ma y use p ressurized gas c ylind ers.(Refe renc e: Proc ess Safe ty Beac on)
This newsletter prov ides information on the EPA Risk Manage me nt Program, EPCRA a nd other issues rela ting to the
Ac c idental Relea se Prevention Requirem ents of the Clea n Air Ac t. The information should b e used a s a referenc e too l, no
as a definitive source of compliance information. Compliance regulations are published in 40 CFR Part 68 for CAA section
112(r) Risk M ana em ent Pro ram, a nd 40 CFR Part 355/ 370 for EPCRA.
8/3/2019 Pressure Vessels - Rapture Hazard & Prevention
http://slidepdf.com/reader/full/pressure-vessels-rapture-hazard-prevention 9/9
PAGE 9Chemica l Emer enc Prevention & Plannin Newsletter
Department of Homeland Security
Chemical Fac ility Anti-Terrorism
Standards (CFATS) d o not im pac t EPCRAor CAA 112(r) Rep orting
In a new regulation (6 CFR Part 27) the
Depa rtment of Home land Sec urity (DHS) beg an
(January 22, 2008) requiring vulnerability
assessme nt and sec urity p lanning fo r loca tions
tha t sto re ha zardous c hem ica ls. Inc lusion und er
the reg ulation is de pe ndent up on the type and
amo unt o f chem ica ls stored . The thresho lds for
inclusion are g ene rally lowe r than o ther
reg ulat ory p rog ram s.
Rec ently, seve ral fac ilities sub jec t to Fed eral
rep orting req uirem ents unde r the Emerge ncy
Planning a nd C om munity Right to Know Ac t
(EPCRA) or Clean Air Act section 112(r) have
inquired ab out the a pprop ria teness of filing
rep orts und er the se legislative req uirem ents.
Fac ilities have c ited nond isc losure or
confidentiality ag reement s relating to
imp lementa tion o f the Depa rtment o f Home land
Sec urity's new Chem ica l Fac ility Anti-Terrorism
Sta nd ards (CFATS).
It should b e no ted that nothing in the ne w C FATSregulations alters the requirements that apply to a
fac ility c ove red und er b oth CFATS, EPCRA and
CA A 112(r).
In the p rea mb le to the reg ulation, DHS further
c larifies this p rovision, spec ifica lly indic a ting tha t
CFATS ha s no a ffec t o n EPCRA, CAA sec tion
112(r), and other law s administered by EPA:
"At this time, we do no t intend to d isplac e o r
otherwise a ffec t any provisions of Fed eral
sta tutes, inc luding the Eme rge nc y Planning a nd
Co mm unity Right to Know Ac t, 42 U.S.C. 11001 e
seq ., or sec tion 112(r) and 114 of the Clea n Air
Ac t of 1990, as amende d,."
The regulation and preamb le langua ge arec onsistent with similar langua ge c onta ined in the
sta tute a uthorizing the C FATS program (Pub lic
Law 109-295, Sec tion 550).
At the hea dqua rters level, EPA a nd DHS officia ls
have had rec ent d isc ussions to c onfirm that the
c urren t intent o f the CFATS regulat ions rema ins i
ac co rda nce with this understand ing a nd tha t
information currently req uired to be submitted
und er EPCRA and CAA Sec tion 112 (r) is no t
Chem ica l-Terrorism Vulnerab ility Info rmation
(CVI).
RISK MANAGEMENT PROGRAM (RMP) TRAINING – PORTLAND, OR – JUNE 3, 4, 5
Sec tion 112(r) of the Clean Air Ac t m and at es that fac ilities that hold or use ve ry toxic or flamm ab le
substa nc es a t or ab ove threshold quantities deve lop Risk Mana ge me nt Prog rams. The Environme nta l
Prote c tion A ge nc y (EPA) is offe ring FREE one-day RMP Tra ining , whic h w ill provide informa tion a bout how to
c om ply with the RMP rep orting a nd e merge nc y planning requireme nts.
This one -day training is be ing offered three sep arate da ys. Informa tion c an be found at
(http :// yosem ite.epa .gov/ R10/ CLEANUP.NSF/ sites/ rmp). To reg ister o r for mo re informa tion c ont ac t:
allen.step hanie@ep a.go v
REGULATORY UPDATES
Tier 2 Annua l Rep orts Were Due Ma rch 1
Tier 2 annua l rep orts we re d ue M arc h 1. 2008. Sta te rep orting requ irem ents a re a va ilab le a t
http://www.epa.gov/emergencies/content/epcra/tier2.htm