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Lubricants
Precise analyzers are essential for reliable lubricant analysis
Lubricants ensure that machinery and equipment keep running smoothly and efficiently. They play an important role in extending the useful life of moving parts and machinery.
Metrohm provides top-quality analytical instruments, know-how, and first-class, on-site service to support development, manufacturing, in-service monitoring and recycling of lubricants and additives.
Metrohm is involved in standards development at ASTM and ISO, contributing with our application know-how to improve standards for lubricant monitoring.
Discover our latest solutions for your analysis
Improved antioxidant monitoring of in-service industrial lubricants
Download this White Paper to learn more about how primary antioxidants can be reliably determined using differential pulse voltammetry.
Products
Metrohm offers high-performance analytical solutions for measuring key parameters in lubricants such as total acid/base number, water content, oxidation stability, and elemental impurities. With techniques including titration, Karl Fischer titration, and spectroscopy, we help you ensure product consistency, regulatory compliance, and optimal performance – every step of the way.
OMNIS titrators
All-in-one potentiometric autotitrator platform: faster results, safer handling of chemicals, and maximum modularity for easier adaptability to your requirements.
OMNIS NIR Analyzer
Good vibes in your lab: State-of-the-art near-infrared spectrometer for easier, faster, and more efficient quality control and routine screening.
Professional VA
Flexible benchtop analyzers for trace analysis with voltammetry and polarography.
- WP-097Why switch to OMNIS Client/Server (C/S)?
OMNIS Client/Server boosts business performance with scalable server management, cutting costs by reducing hardware, energy use, and maintenance across locations.
- AN-T-240Total acid number with conductometric titration
The total acid number (TAN) is an important parameter for assessing the acidity of oils and fuels. This Application Note determines TAN using conductometric titration.
- WP-085Improved antioxidant monitoring of in-service industrial lubricants
Voltammetry (VA) is a fast and established method for testing the remaining antioxidant content in industrial lubricants. The flexible and modular Metrohm VA system setup discussed in this White Paper delivers more repeatable and more reproducible results which fulfill all ASTM requirements. Additionally, users can automate the complete analysis process which makes it possible to run series of samples completely unattended.
- AN-T-182Determination of the bromine number in petroleum products and aliphatic olefins according to ASTM D1159
The bromine number is an important parameter for the determination of aliphatic C=C double bonds in petroleum products. The bromine number is usually determined using electrochemical titration at 5 °C, where the bromine is generated in situ from a bromide/bromate solution. For the titration, a solvent mixture of glacial acetic acid, methanol, and chloroform is used. In this Application Note, the toxic chloroform was replaced with diethyl carbonate.
- AN-H-001Determination of TAN in oils
Determination of Total Acid Number (TAN) values in mineral oils and similar fluids.
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