Shared Flashcard Set

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Water Treatment Safety
Safety in Water Treatment
19
Education
Professional
11/01/2013

Additional Education Flashcards

 


 

Cards

Term
What is a Pathogenic organism ?
Definition
A disease causing organism.
Term
Chlorine comes in three forms, these are :
Definition

a)      Gas = 100 percent chlorine , a greenish yellow gas, highly toxic, it comes in 100 or 150 pound cylinders, one ton cylinders, and Rail Tankers to 90 tons.

b)      Calcium Hypochlorite = Granular and tablet form 65 to 75 percent chlorine.

c)      Sodium Hypochlorite = Bleach, industrial strength varies by manufacturer, usually 10-12 percent chlorine.

Term
How many parts per million of chlorine gas are detectable in the air?
Definition

    It is detectable at .08 ppm in the air.

Term
Chlorine gas in dangerous for long term exposure at what part per million in air?
Definition

     It is dangerous for long term exposure a 5 ppm in air.

Term
Chlorine gas is lethal at what part per million in the air?
Definition

    It is lethal at 1000 ppm in air.

Term
When changing a chlorine gas cylinder always use ______ and never ______.
Definition

      When changing a gas cylinder for chlorine it is important to use proper safety equipment and to never work alone.

Term
When you change a chlorine gas cylinder never reuse the _________.
Definition
When you change a chlorine gas cylinder never reuse the lead gasket. Always use a new gasket each time the valve yoke is loosened.
Term
List the three classifications of chlorine repair kits and the type cylinder they are used for.
Definition

1)      Repair kits are available for chlorine cylinders:

a)      “A” kit for 100 and 150 pound cylinders

b)      “B” kit for one ton cylinders

c)      “C” kit is for rail cars.

Term
True or False, Chlorine cylinders contain only gas.
Definition
False, chlorine cylinders contain liquid chlorine as well as gas.
Term
There are two valves on a one ton cylinder, they sholud be aligned ________ to the ground.
Definition

There are two valves on a one ton cylinder, they sholud be aligned perpendicular  to the ground.

 

↑      top valve

↓ bottom vlave

↔          ground

Term
The top valve on a ton cylinder dispenses ____ while the valve on the bottom dipenses _____.
Definition
The top valve on a ton cylinder dispenses GAS while the valve on the bottom dipenses LIQUID.
Term
Chlorine is a ________colored gas.
Definition
Chlorine is a  greenish yellow colored gas.
Term
Chlorine is ____ times _____ than air.
Definition
Chlorine is 2.5 times heavier than air.
Term
Chlorine liquid will expand into a gas at a rate of :
Definition

Chlorine liduid will expand at a rate of 460 to 1.

 

This means that 1 cc of liquid will expand to 460 cc of gas.

Term

Chlorine cylindersa are equipt with fusible plugs to keep the cylinder from rupturing if exposed to  high heat.

At what temperature will the plugs melt?

Definition

   

       All cylinders are equipped with fusible plugs that will melt at 158oF to 165oF  to

prevent the tank from rupturing.

Term
What chemical vapor is used to check for chlorine leaks?
Definition

      To check for chlorine leaks ammonia is used, a small amount of ammonia vapor is squeezed near the valve and fittings, if a white cloud appears then there is a chlorine leak.

Term
MSDS
Definition

MSDS- MATERIAL SAFETY DATA SHEET

These sheets are part of your "Right to Know" and should be kept on file with access for all workers.

These sheet define the chemicals used in the plant and the dangers and safe handling associated with them.

Term
LOCK OUT / TAG OUT
Definition

Lock Out / Tag Out refers to a system used  to make sure that a piece of machinery or a motor or a chemical, water, or steam line, is isolated and denergized for repair, maintenace, or inspection.

The system has very specific protocols involving who can lock out  a piece of equipment and what needs to be done before the lock and or tag can be removed.

Term
PPE
Definition

PPE - Personal Protective Equipment-

This is the safety equipment provided to and or assigned to an individual. This includes but is not limited to gloves, safety glasses, rain suits, boots, and hard hats.

Remember that this equipment is your responsibility and you must ensure that it is kept in working order and that it is replaced when not in working order.

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