Lubricating Oil Evaporation Loss Tester (Noack B Method)
A Noack Evaporation Loss Tester measures the volatility of lubricating oils, especially engine oils, transmission fluids, and industrial lubricants. It determines how much oil evaporates under high-temperature conditions, which is critical for ensuring oil stability, reducing consumption, and preventing deposits.
Test Standards for Noack Volatility
✅ ASTM D5800 (Procedure B) – Noack Evaporation Loss of Lubricants
✅ CEC L-40-A-93 – European Noack Test Method
✅ ISO 11035 – Lubricant Volatility Testing
How the Noack B Method Works
🔹 Purpose: Measures the oil’s tendency to evaporate at high temperatures (250°C for 60 minutes).
🔹 Principle:
1️⃣ Heat the Oil – A sample (65g) is placed in a test crucible and heated to 250°C.
2️⃣ Air Flow – A controlled air stream (20 L/min) passes over the sample, simulating high-temperature conditions.
3️⃣ Weight Loss Measurement – The remaining oil is weighed, and the percentage of evaporated oil is recorded.
Example result: A Noack volatility of 12% means 12% of the oil evaporated under test conditions.
Applications of Noack Volatility Testing
1. Engine Oils (Gasoline & Diesel Engines)
🔹 Examples: SAE 0W-20, 5W-30, 10W-40, API SP, ILSAC GF-6
🔹 Why It Matters:
✅ Reduces oil consumption in modern engines.
✅ Prevents piston deposits & sludge formation.
✅ Ensures low volatility for better fuel efficiency.
2. Heavy-Duty Diesel Oils (Trucking & Construction Equipment)
🔹 Examples: API CK-4, FA-4, CJ-4, SAE 15W-40, 10W-30
🔹 Why It Matters:
✅ Prevents loss of viscosity at high temperatures.
✅ Reduces engine wear & oil top-ups in long-haul trucking.
✅ Meets OEM low-volatility requirements for fuel efficiency.
3. Transmission & Gear Oils (ATF, CVT, and Manual Transmission Fluids)
🔹 Examples: DEXRON, MERCON, ZF-LIFEGUARD, SAE 75W-90, 80W-140
🔹 Why It Matters:
✅ Prevents oil evaporation in high-heat gearboxes.
✅ Ensures stable viscosity in transmissions for smooth shifting.
✅ Extends service life of oil & reduces fluid degradation.
4. Industrial & Turbine Oils
🔹 Examples: ISO VG 32, 46, 68, 100, Steam & Gas Turbine Oils
🔹 Why It Matters:
✅ Ensures long-lasting lubrication in extreme heat environments.
✅ Reduces evaporation loss in industrial compressors & turbines.
✅ Prevents oil degradation in continuous high-temperature applications.
Popular Noack B Method Testing Equipment
🔹 Koehler K30000 – Noack Volatility Tester (ASTM D5800)
🔹 Anton Paar Noack Tester – High-precision lubricant volatility analysis
🔹 Normalab NCK2 5G – Advanced Noack Evaporation Tester
🔹 Tanaka Noack Tester – Automated volatility measurement system
Top Noack Evaporation Loss Testers (ASTM D5800, CEC L-40-A-93)
Noack testers measure the volatility of lubricating oils by determining the evaporation loss at 250°C. Below are some of the most reliable Noack testers available for engine oils, transmission fluids, and industrial lubricants.
1. Koehler K30000 Noack Evaporation Loss Tester
🔹 Standard Compliance: ASTM D5800 (Procedure B & C), CEC L-40-A-93
🔹 Features:
✅ Fully automated with digital temperature control.
✅ Uses a precision vacuum pump for accurate air flow.
✅ Ideal for engine oils, transmission fluids, and industrial lubricants.
✅ Easy operation & fast test cycle.
🔹 Why Choose It?
✔ Reliable for R&D and quality control labs.
✔ Widely used by oil manufacturers & refineries.
✔ Compact & cost-effective solution for routine testing.
2. Anton Paar Noack Tester (NCK2 5G)
🔹 Standard Compliance: ASTM D5800 (All procedures), ISO 11035
🔹 Features:
✅ Fully automated system with touchscreen interface.
✅ Advanced airflow and temperature regulation.
✅ Integrated balance for precise mass loss calculation.
✅ Data export via USB and LIMS connectivity.
🔹 Why Choose It?
✔ Best for high-throughput laboratories needing precision testing.
✔ Automated error detection & self-calibration.
✔ Ideal for engine oil manufacturers & lubricant R&D.
3. Normalab NCK2 5G Noack Tester
🔹 Standard Compliance: ASTM D5800 (B & C), CEC L-40-A-93
🔹 Features:
✅ High-precision heating system ensures accurate 250°C control.
✅ Real-time monitoring of evaporation loss.
✅ User-friendly software with automatic test cycles.
✅ Pre-calibrated system for quick startup.
🔹 Why Choose It?
✔ Perfect for automotive & industrial lubricant manufacturers.
✔ Reliable repeatability & reproducibility.
✔ Low maintenance & easy to clean.
4. Tanaka Noack Tester (NCK-4)
🔹 Standard Compliance: ASTM D5800 (Procedure B), ISO 11035
🔹 Features:
✅ Automatic test sequence for minimal operator intervention.
✅ Quick heating time and temperature stability.
✅ Built-in data logging & USB connectivity.
✅ Compact, space-saving design for laboratories.
🔹 Why Choose It?
✔ Cost-effective option for small-to-medium labs.
✔ Ensures reliable Noack volatility measurements.
✔ Best for routine QC testing of lubricants.