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Technician A says that coolant freeze protection can be measured with a
hydrometer. Technician B says that coolant freeze protection can be
measured with a refractometer. Who is correct?
a. Technician A
b. Technician B
c. Both A and B
d. Neither A nor B
biele HOLL

Respuesta :

oliver010107
Answer: Technician A, I think
Perplexed20
Technician B

It can be argued a hydrometer can also be used.

However, most hydronic systems using either ethylene or propylene glycol will get most accurate reading with a refractometer.

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