More Samples, Less Time – Smart Viscosity and Density Testing with OptiMVD

September 17, 2025

Viscosity and density are two of the most fundamental physical properties in petroleum products, lubricants, and specialty fluids. Accurate measurement of these parameters is critical for quality control, regulatory compliance, and product performance. Traditionally, analysis was performed on manual capillary viscometers (ASTM D445) and hydrometers for density measurements.  While reliable, these were labor-intensive, slow, and prone to operator variability.

The OptiMVD, developed by PAC, integrates an advanced mini viscometer and oscillating U-tube density meter into a single compact platform. This combination not only accelerates testing but also ensures consistency across multiple production stages and laboratory testing.

Analytical Performance and Standards Alignment

The OptiMVD is designed to meet and exceed key international test methods:

• Viscosity: ASTM D7945, ISO 18335, and SAE J300 for automotive engine oils.
• Density: ASTM D7777, correlating with reference methods such as ASTM D4052 and ASTM D1298.

Ease of use is at the heart of the OptiMVD. A bright 13.3″ touchscreen makes operation intuitive, while built-in automation handles heating, cleaning, and drying of the test cell. Its integrated autosampler carousel can manage up to 48 samples in a single sequence. Paired with Smart Sample Ordering, the instrument automatically prioritizes the testing schedule for maximum efficiency. Operators can select predefined “Favorites,” start a run, and let the instrument complete the full analysis cycle. As a result, labs can cut total testing times by 20–50% compared to manual or older semi-automated systems.

Space is at a premium in most laboratories, and the OptiMVD was engineered with this in mind. Despite offering both viscosity and density testing in one unit, it occupies only about a foot of bench space and stands less than 20 inches tall. This small footprint makes it ideal for labs looking to expand capabilities without reconfiguring their workspace.

What’s the value for Labs?

For laboratories, the OptiMVD translates into faster results, lower operating costs, and improved efficiency. For distributors, it offers a versatile solution that appeals across industries – from petroleum and automotive to lubricants and industrial fluids. Its combination of speed, compliance, and ease of use makes it a strong choice for clients looking to modernize their operations.

Interested in transforming your lab operations? Contact us today to learn more about how the OptiMVD can deliver real results in your workflows.

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