Demulsibility Characteristics Tester LDCT-A10

The Demulsibility Characteristics Tester LDCT-A10 is suitable for testing a wide range of petroleum-based oils, including turbine oils, hydraulic fluids, and other lubricants. It can also evaluate synthetic fluids that are prone to forming emulsions with water. The instrument helps determine how quickly and effectively these fluids separate from water after agitation. This makes it a valuable tool for quality control in lubricant production and in-service fluid monitoring.

Our Demulsibility Characteristics Tester LDCT-A10 typically uses 500 mL graduated cylinders that conform to ASTM D1401 specifications. These cylinders allow clear visual observation of oil-water separation during and after testing. It's important to use clean, residue-free glassware to avoid contamination that could affect the results. We can recommend or supply compatible glassware to ensure the test meets standard compliance.

Labtron’s Demulsibility Characteristics Tester LDCT-A10 is sensitive enough to detect even small variations in formulation that impact emulsion stability. Two samples with nearly identical base stocks but differing dispersant or surfactant content may show distinct separation times or emulsion volumes. This makes the tester valuable in production quality control, where batch-to-batch consistency is critical. By using ASTM D1401 as a control reference, even minor formulation drifts or additive over- or under-dosing can be flagged before reaching the market.

The Demulsibility Characteristics Tester LDCT-A10 provides precise visual access to the fluid column, allowing the operator to measure the final volume of oil, water, and emulsion when full separation does not occur within the 30-minute ASTM D1401 limit. These readings are accepted under the method as valid results and indicate poor demulsibility performance. Such outcomes can guide further testing, formulation adjustments, or outright product rejection. Extended observation protocols may also be documented for research, development, or compliance with non-standard specifications.

Labtron's Demulsibility Characteristics Tester LDCT-A10 delivers accurate results when standard procedures are followed, but common mistakes can compromise test reliability. These include using dirty or incompatible glassware, inaccurate sample or water volumes, and skipping proper heating equilibration. Failing to secure the stirrer paddle or varying the stirring time can also distort separation behavior. Testing oils outside the recommended viscosity range without preheating may further affect emulsion clarity. Adhering strictly to the ASTM method and maintaining the equipment regularly ensures consistent and dependable performance.

Our Demulsibility Characteristics Tester LDCT-A10 requires temperature and timer calibration every 6 to 12 months for reliable operation, depending on usage volume. Temperature can be verified using a certified thermometer placed in the test bath or by comparing with a reference fluid. The timer should be checked against a stopwatch to ensure accurate control of stirring durations. Although stirring speed calibration is needed less often, it should be performed if motor vibration or irregular motion is noticed. Keeping calibration records supports audit readiness and helps meet ISO 17025 accreditation requirements.