Verification Record of Absolute Viscometer

Date

Performed By

Manufacturer

Lab ID

Model

Thermometer ID

Bath filled with clean distilled water or clear oil

• Yes
• No
• N / A

Maintains temperature of 60 +/- 0.1 degree C

• Yes
• No
• N / A

Actual Temp

Thermometer correctly immersed at test temperature

• Yes
• No
• N / A

Maintains vacuum of 300 +/- 0.5 mmHG

• Yes
• No
• N / A

Actual mmHg

Holds vacuum when system is evacuated and closed

• Yes
• No
• N / A

Standardized at least once per year

• Yes
• No
• N / A

ASTM 47C or 47F used

• Yes
• No
• N / A

Other thermometric device with an accuracy of at least 0.02 degree C used

• Yes
• No
• N / A

Thermometer or other device calibrated at least every six months

• Yes
• No
• N / A

Clean and free of deposits or contaminates

• Yes
• No
• N / A

Immersed so top timing mark at least 20 mm below surface of bath liquid at test temperature

• Yes
• No
• N / A

Cleaned with suitable solvent and properly dried or cleaned in a glass cleaning oven not set above 500 degree C

• Yes
• No
• N / A

Verified with proper viscosity standard at least every five years

• Yes
• No
• N / A

Date of last verification

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