How Often Must a Refillable Refrigerant Cylinder Be Tested

question 1

Multiple Choice

How often must a refillable refrigerant cylinder be tested?

• A) Every 3 years
• B) Every 4 years
• C) Every 5 years
• D) Every 6 years

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Definitions:

Formula

A representation of a substance using symbols and numbers to indicate the types and numbers of atoms present.

Lewis Dot Structure

A diagram showing the bonding between atoms of a molecule and the lone pairs of electrons in the molecule.

Chlorine

A toxic, greenish-yellow gas with a strong odor, used as a disinfectant and in the manufacture of various chemicals.

Calcium

A chemical element with the symbol Ca and atomic number 20, an essential component of bones, teeth, and shells, and plays a crucial role in cell signalling.