Acidity Tester

Acidity Tester

Acidity testing solutions for insulating oil testing, also for lubricants, fuels, and industrial fluids.

Acidity Tester
Automatic TAN Titrators

Standard ASTM ISO IEC

Acidity (TAN) Testing Solutions

Acidity (Total Acid Number, TAN) testing is a critical method for evaluating oil degradation, oxidation, and contamination. An increase in acidity indicates aging of insulating oil or lubricants and may lead to corrosion, sludge formation, and reduced equipment performance.

Our acidity tester provide precise, repeatable, and reliable measurements, helping users monitor oil condition, extend service life, and prevent equipment failure.

Applications of Acidity Tester

Our acidity tester are widely used in:

· Insulating oil condition monitoring in transformers
· Lubricant degradation analysis in industrial machinery
· Hydraulic and turbine oil testing
· Quality control in oil production and processing
· Preventive maintenance programs in power plants and factories

Key Acidity (TAN) Testing Parameters

· Total Acid Number (TAN)
Measures the amount of acidic components in oil, expressed as mg KOH/g, indicating oxidation and aging level.

· Test Standards Compliance
Supports international standards such as ASTM D664, ASTM D974, ISO 6619, and related methods.

· Test Repeatability & Accuracy
Ensures consistent and reliable titration results through automated titration control and precise endpoint detection.

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Acidity Testing Instruments

Automatic Acidity Tester
For laboratory and on-site testing with fully automatic test sequences.

Service 1

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Service 2

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Service 3

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Service 3

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Service 4

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Service 5

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Contact Us for Acidity Testing Solutions

Not sure which acidity tester is suitable for your application?
Our experts can help you select the right solution based on oil type, testing standard, and operational needs.

FAQ – Acidity Tester