Blog material here is usually related to political, educational and social commentary. However, recent assignments in Haiti prompt both a brief perspective of the country as well as some important safety information.
On DECEMBER 6, 1492 Christopher Columbus first laid eyes on
the pristine shores of the island of Hispanola. Lush with fruits and towering
mahogany trees Haiti became known as "La Perle des Antilles" or
"the Pearl of the Caribbean". What was once France's richest colony
today has become one of the world's poorest nations, hindered by dictatorships,
depleted natural resources, and overwhelming spiritual darkness.
Our hope is that one day you would learn first-hand of the
beauty of Haiti that endures to this day - that of its culture and of its
people.
Brief Facts About Haiti
• Haiti is
the oldest black republic in the world.
• Population:
approximately 8.3 million, almost entirely of African origin
• Employment
rate: 30%
• Illiteracy
rate: 48%
• Religion:
Catholic 85%, Voodoo 90%
• Languages:
French (official), kreyol (most widely spoken)
• Current
government: Elected president
• Haiti is
the poorest and most densely populated country in the Western Hemisphere.
• Average
life expectancy is 52 years.
PROPANE SAFETY IN HAITI
(or most anywhere)
What Is Propane?
Propane is a hydrocarbon (C3H8)
and is sometimes referred to as liquefied petroleum gas, LP-gas, or LPG.
Propane is produced from both natural gas processing and crude oil
refining. It is nontoxic, colorless, and
virtually odorless. As with natural gas,
an identifying odor is added so the gas can be readily detected.
Severe freeze burns or frostbite
can result if propane liquid comes in contact with your skin.
Propane is flammable when mixed
with air (oxygen) and can be ignited by many sources, including open flames,
smoking materials, electrical sparks and static electricity. Trust your nose; never ignore the smell of
propane. Always treat it as an actual
leak until confirmed otherwise.
Propane vapors, like gasoline
vapors, are heavier than air and may accumulate in low-lying areas such as
basements, crawl spaces, or along floors.
As with any fuel, safety must
come first whenever you transport, handle, store or use propane.
In fact, it is pretty difficult
to actually blow up a propane tank or cylinder. What does occur when the
pressure relief valve blows, which occurs at 312psi or 375psi depending on the
cylinder type, is that the gas is vented and makes a lot of noise. (I have had
one overfilled tank vent and it really got my attention!) But there was no
flame and it dissipated outside very quickly.
Should there be a fire or source
of ignition when it vents, it won't explode, either--instead it makes a torch.
It does not ignite inside the gas line and run up it to the tank or cylinder
and "explode."
The only exception to that, is if
it is punctured and ignited simultaneously, and then the same external ignition
occurs only more rapidly. Or, if a leak is allowed to build up inside an enclosed
space and then is ignited, there is a very big fire.
The important thing is that with
the garlic odorant (Ethyl Mercaptin) that is added, you would smell it in most
cases of a small leak or break with time to take appropriate action. It can be
smelled by the human nose at about 1/5th of the lower limit of combustibility
or about 1/2 % propane to air. (Propane combusts at 2.15% gas to air--9.6% gas
to air, and not above and not below those levels. With a good sense of smell,
you would be alerted long before the levels reach dangerous concentrations.
Small Cylinder Safety
WHAT SHOULD I DO IF I SMELL GAS?
- Immediately put out all smoking materials and
other open flames.
- If you are able to, safely turn off the cylinder
valve. To close the valve, turn it to the right (clockwise). Prior to 1994, propane cylinder valves had a
left hand thread (counter-clockwise).
Since 1994, propane cylinders have been designed with a right hand
thread (clockwise) or a quick disconnect device.
- Immediately leave the area and call for help.
- Do not operate appliances, telephones, or cell
phones. Do not turn lights or
flashlights on or off. Flames or sparks
from these sources can trigger a fire or explosion.
- Before you restart the appliance, have someone
qualified inspect your cylinder and appliance.
- Some people may have difficulty smelling propane
due to their age (older people may have a less sensitive sense of smell); a
medical condition; or the effects of medication, alcohol, tobacco, or drugs.
Consider purchasing a propane gas detector as an additional measure of
security.
- Odor fade is an unintentional reduction in the
concentration of the odor of propane, making it more difficult to smell.
Although rare, this can be caused by the presence of air, water, or rust in the
cylinder. New and reconditioned small cylinders that sit too long before being
filled are prone to internal rust when moisture and air get inside.
HOW SHOULD I STORE SMALL
CYLINDERS?
- NEVER store or place a propane cylinder indoors
or in an enclosed area such as a basement, garage, shed, or tent.
- NEVER store or place a propane cylinder in an
area of excessive heat (120 degrees or higher) or near a stove, fireplace, or
other heat source. The heat builds up pressure inside the cylinder, which may
cause the pressure relief valve to release propane. Flash fires or explosions
can result from exposing cylinders to heat.
- NEVER store or place a spare cylinder under or
near a barbecue grill.
- DO NOT smoke or have any ignition sources such
as flames or spark-producing electrical tools in the area while handling or
transporting cylinders.
- Propane cylinders are painted a light or
reflective color to reduce heat absorption from the sun, which increases the
internal pressure within tank. Never
paint a propane cylinder a dark color.
HOW SHOULD I TRANSPORT SMALL
CYLINDERS?
- ALWAYS transport and store a cylinder in a
secure and upright position so it will not fall or roll.
- ALWAYS close the cylinder valve and seal with a
plug, if possible, even if the cylinder is empty.
- NEVER keep a filled cylinder inside a hot
vehicle or transport it inside a closed trunk.
- ALWAYS place the cylinder in a well-ventilated
area of the vehicle.
- ALWAYS proceed directly to your destination and
immediately remove the cylinder from your vehicle.
- USA law place limits on the number of cylinders
and the amount of propane that can be transported in closed-bodied vehicles
such as passenger cars and vans. We should respect that as a guideline here in
Haiti as well.
WHAT SHOULD I DO IF I HAVE A
PROBLEM WITH MY CYLINDERS?
- DO NOT UNDER ANY CIRCUMSTANCES
TRY TO MODIFY OR REPAIR VALVES, REGULATORS, OR OTHER CYLINDER OR APPLIANCE
PARTS. Propane cylinders incorporate special components such as valves,
connectors, and other parts to keep them safe for use with grills and other
propane appliances. Damage to any component can cause a gas leak.
- DON’T RISK SAFETY! Call someone
for assistance.
HOW TO TEST FOR PROPANE LEAKS
- It is important to inspect your
cylinder and outdoor gas appliances for leaks. Do this before using them for
the first time, as well as on a regular basis. This can be accomplished with a
simple “bubble” test:
- Inspect the propane cylinder for cuts, gouges,
dents and rusting and replace, if necessary.
- Check hose connections for leaks by brushing a
50% liquid dish soap and 50% water solution onto all hose connections and
valves. Bubbles indicate a leak. If you encounter a leak, shut off the propane
at the tank, if it’s safe to do so, tighten hose connections and check again
for leaks using the dish soap and water solution. If bubbles still appear, call for help
immediately.
- Never use matches or lighters to check for
leaks.
WHAT IS AN OVERFILL PREVENTION
DEVICE (OPD)?
- MAKE SURE YOUR CYLINDER IS EQUIPPED WITH AN
OVERFILL PREVENTION DEVICE (OPD). An OPD is a safety feature that helps prevent
small propane cylinders from being overfilled. An overfilled cylinder doesn’t
have enough space left if the liquid expands when exposed to warmer temperatures.
This can cause an increase in cylinder pressure and create potentially
hazardous conditions.
- Most cylinders with OPDs have special triangular
handwheels with the letters “OPD” on them. In the USA, cylinders without OPDs
cannot be refilled. That is not so in Haiti, so replace a cylinder with an old
valve.
HOW CAN I KEEP MY APARTMENT SAFE
WHEN I AM AWAY FOR AN EXTENDED PERIOD?
- If you’re leaving your home for an extended
period, close all propane supply valves.
This includes the main gas supply valve on the propane tank as well as
any gas supply valves located near individual appliances.
- WHEN YOU RETURN after an extended absence,
conduct a leak check before the propane is turned on and the appliance re-lit.
STORM SAFETY TIPS
- PROTECT YOUR PROPANE SYSTEM IF THE WEATHER TURNS
BAD. Before, during, or after severe weather, you may need to take specific
action to ensure the continued safe operation of your propane system. Especially make sure values are closed during
electrical storms.
- WATER CAN DAMAGE YOUR PROPANE SYSTEM. If
flooding is predicted, turn off the gas valve at the cylinder or tank BEFORE
the water rises. Do not turn the gas back on until the gas system and all
appliances have been checked as follows:
- Replace the
regulator and/or pressure relief valves if there are signs of water, dirt,
debris, or corrosion.
- Replace
automatic controls and appliance regulators on any gas appliances that have
been under water.
- Inspect and (if
necessary) replace manual shut-off valves in gas piping, and perform tank
testing of the system.
- Clean
appliance main and pilot burners and replace pilot orifices.
POTENTIAL HEALTH EFFECTS
INFORMATION
·
ROUTES OF EXPOSURE:
- INHALATION: Simple asphyxiant. It should be
noted that before suffocation could occur, the lower flammability limit of
propane in air would be exceeded; possibly causing both an oxygen-deficient and
explosive atmosphere. Exposure to concentrations (> 10%) may cause
dizziness. Exposure to atmospheres containing 8-10% or less oxygen will bring
about unconsciousness without warning, and so quickly that the individuals
cannot help or protect themselves. Lack of sufficient oxygen may cause serious
injury or death.
- EYE CONTACT: Contact with liquid or cold vapor
can cause freezing of tissue.
- SKIN CONTACT: Contact with liquid or cold vapor
can cause frostbite.
- SKIN ABSORPTION: None.
- INGESTION: None.
- CHRONIC EFFECTS: None.
- MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE:
None
- OTHER EFFECTS OF OVEREXPOSURE: None.
FIRST AID MEASURES
- INHALATION: Persons suffering from lack of
oxygen should be removed to fresh air. If victim is not breathing, administer
artificial respiration. If breathing is difficult, administer oxygen. Obtain
prompt medical attention.
- EYE CONTACT: Contact with liquid or cold vapor
can cause freezing of tissue. Gently flush eyes with lukewarm water. Obtain
medical attention immediately.
- SKIN CONTACT: Contact with liquid or cold vapor
can cause frostbite. Immediately warm affected area with lukewarm water not to
exceed 105°F.
- INGESTION: None.
- NOTES TO PHYSICIAN: None.
FIRE FIGHTING MEASURES
- Fire extinguisher, dry chemical, water spray or
fog for surrounding area. Do not extinguish until propane source is shut off.