If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?

Physical and Chemical Agents
If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?

50

1

10

5

50

1

10

5

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Physical and Chemical Agents
Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

Oils and jellies

Swab sticks

All of these

All-glass syringes

Oils and jellies

Swab sticks

All of these

All-glass syringes

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Physical and Chemical Agents
Microbes can be removed from a liquid solution by the process of

freeze-drying

osmosis

desiccation

filtration

freeze-drying

osmosis

desiccation

filtration

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Physical and Chemical Agents
Which of the following is most effective for sterilizing mattresses and plastic petri plates?

Ultraviolet radiation

Ethylene oxide

Glutaraldehyde

Chlorine

Ultraviolet radiation

Ethylene oxide

Glutaraldehyde

Chlorine

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Physical and Chemical Agents
Which of the following methods will not sterilize?

Aqueous glutaraldehyde for 10 hours

121°C at 15 lb/in pressure for 15 to 20 minutes

Dry heat at 171°C for 1 to 2 hours

100°C boiling water for 30 minutes

Aqueous glutaraldehyde for 10 hours

121°C at 15 lb/in pressure for 15 to 20 minutes

Dry heat at 171°C for 1 to 2 hours

100°C boiling water for 30 minutes

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Physical and Chemical Agents
Which of the following material is sterilized by use of red heat?

Inoculating wires and loops

Soiled dressings

Glass slides

All-glass syringes

Inoculating wires and loops

Soiled dressings

Glass slides

All-glass syringes

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Physical and Chemical Agents

Physical and Chemical Agents If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?

Physical and Chemical Agents Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

Physical and Chemical Agents Microbes can be removed from a liquid solution by the process of

Physical and Chemical Agents Which of the following is most effective for sterilizing mattresses and plastic petri plates?

Physical and Chemical Agents Which of the following methods will not sterilize?

Physical and Chemical Agents Which of the following material is sterilized by use of red heat?

Physical and Chemical Agents
If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?

Physical and Chemical Agents
Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

Physical and Chemical Agents
Microbes can be removed from a liquid solution by the process of

Physical and Chemical Agents
Which of the following is most effective for sterilizing mattresses and plastic petri plates?

Physical and Chemical Agents
Which of the following methods will not sterilize?

Physical and Chemical Agents
Which of the following material is sterilized by use of red heat?