SPLOPS module 9 Flashcards
Regardless of flammability hazards, what should be controlled?
All ignition sources.
What are considered general hazards?
physical environmental container hazards container stability Container integrity Energy releases.
Define containment?
KEEP IN CONTAINER
actions taken to keep material in “container”
define confinement
actions to keep material in an area?
what are the general confinement techniques for a liquid?
absorption/ adsorption damming/diking diversion dispersion retention.
what are the general confinement techniques for a solid?
Site control.
What are the general control techniques for a gas or vapor?
Suppression
dispersion
confinement.
What are the general techniques for containment?
Auxiliary closure devices bandages neutralization overpacking patching plugging
What are auxiliary control devices or measures?
Dome clamps
engineered shut off valves
A B C chlorine kits
sealants
What are the considerations for overpacking a container?
Must be 85 gallons
Compatible with material or chemical hazard
must write chemical name on container
must write salvage drum on container
must be able to withstand pressure and not over pressurize container
What are considered auxiliary tools?
bung wrenches
non- sparking tools
drum leveler/ up righting
dolly/ carts
What are the terms when discussing damage to a container?
Cracks- narrow splits or breaks scores- indentation gouges-removal of container material dents- deformities burns
what should be done if unsure of a container’s status?
take defensive measures and get expert help.
What type of call makes up most Hazardous materials calls?
Non- bulk container.
What are mitigation methods for 55 gal drums?
Overpacking
bandages
plugging/ patching
sealants
What should be done first before overpacking a drum?
stop the leak first.
how much does a nearly full 35 gal drum weigh?
approx 600lbs
Pneumatic plugs for drums range in size from ?
4 inches to 3 feet.
What is the anatomy of a drum?
circular opening at the top- BUNG
First rim at the top- CHIME
rims or rings below the 1st- ROLL RINGS
Can ABC kits be used for other chemicals than chlorine?
yes.
Best methods for practicing on pressure vessels?
First practice without protective clothing
second add gloves
Third, use all together.
Are leaks from pressure relief valves considered a breach?
NO.
Cargo control tank mitigation from piping or valves should be?
closing valves upstream of the leak.
What is the pressure in the piping generally for a cargo tank?
75 psi
If a relief valve on a non-cyrogenic tank is operating what should you do?
find out the reason it is operating, if the product is causing a hazard then defensive measures should be taken.
Cargo tank mitigation includes what?
replacing bolts, gaskets or caps.
Cargo tank removal methods include?
flaring
transferring
venting
venting/burning
Venting is used for what material?
non-flammable gases
Flaring is used when?
disposal of flammable materials
What is the advantage of a vacuum truck
does not have to develop a higher pressure than the damaged container.
AFFF foam for non-polar substances like gasoline/ oils work by?
reduces surface are and decreases heat production
when and why do hazardous materials releases occur?
improperly secured valves bad gaskets overfilling unsecured fittings venting from relief valves
what are the most basic control measures for tank cars?
if open- close it - clockwise
if loose- tighten it- clockwise
if missing- replace it
What are offensive operations decisions that need to be made?
what stresses caused the breech? Identity of the product Defensive actions already taken Offensive ops risk vs. benifit what hazards result in taking offensive ops Can offensive ops work Can offensive ops be done safely Can offensive ops mitigate the situation.
What must be done to any container before attempting to control a leak?
stabilize the container.
