Run Coolant Tank Concentration Audit — Free

Audit Details

Machine or coolant system identified

Enter the machine name, asset ID, or coolant system identifier.

Audit date and time recorded critical (required)

Document when the coolant concentration audit was performed.

Coolant type confirmed

Select the coolant type in use for this system.

Reference procedure available

Confirm the applicable SOP or maintenance procedure is available to the inspector.

Yes No N/A

Inspector signature completed critical (required)

Inspector must sign to confirm the audit was completed accurately.

Refractometer Reading

Refractometer calibrated and clean critical (required)

Confirm the refractometer is clean, functional, and calibrated before use.

Yes No N/A

Sample taken from representative location critical (required)

Confirm the sample was taken from a well-mixed, representative point in the tank.

Yes No N/A

Measured coolant concentration critical (required)

Record the measured concentration from the refractometer reading.

Concentration within target range critical (required)

Confirm the measured concentration is within the approved operating range.

Yes No N/A

Reading recorded in logbook or CMMS

Verify the refractometer result has been documented in the maintenance record.

Yes No N/A

Top-up and Makeup Condition

Coolant level adequate critical (required)

Confirm the tank level is sufficient for normal operation.

Yes No N/A

Top-up fluid mixed to correct ratio critical (required)

Confirm any top-up or makeup coolant was prepared at the correct concentration before addition.

Yes No N/A

Signs of excessive dilution or overconcentration critical (required)

Check for evidence of water imbalance, poor mixing, or concentration drift.

Yes No N/A

Top-up volume recorded

Enter the amount of coolant or water added during this audit, if applicable.

Biocide Treatment

Biocide treatment required by schedule

Confirm whether the coolant system is due for biocide treatment according to the maintenance schedule.

Yes No N/A

Biocide added as scheduled critical (required)

Verify the required biocide treatment was applied when due.

Yes No N/A

Biocide product and dosage documented

Record the product name, dosage, and application details.

Evidence of microbial growth or odor critical (required)

Check for visible contamination, slime, foul odor, or other indicators of microbial activity.

Yes No N/A

Skimming and Cleanliness

Skimmer operating effectively critical (required)

Confirm the skimming system is functioning and removing tramp oil as intended.

Yes No N/A

Surface free of excessive tramp oil critical (required)

Check the coolant surface for visible oil buildup or contamination.

Yes No N/A

Tank and surrounding area clean

Verify the tank, covers, and surrounding work area are clean and free of spills.

Yes No N/A

Corrective action notes

Document any cleaning, skimming, treatment, or adjustment actions taken during the audit.

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Run: Coolant Tank Concentration Audit

Audit Details

Refractometer Reading

Top-up and Makeup Condition

Biocide Treatment

Skimming and Cleanliness

Get your results