Neminath Instruments Neminath Instruments

Neminath Instruments

Oxidation Stability of Inhibited Mineral oil

Oxidation stability test measures how well inhibited mineral oil resists oxidation over time, indicating its durability, sludge formation tendency, and service life.

Oxidation Stability of Inhibited Mineral oil

Compliance Standard :  ASTM D943 – Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils
Application : The Oxidation Stability of Inhibited Mineral Oil Apparatus is used to determine the oxidation characteristics of inhibited mineral oils, particularly turbine oils, hydraulic oils, and circulating oils, under accelerated oxidation conditions. The test evaluates the oil’s resistance to oxidation by measuring acid number increase, sludge formation, and oxidation life when exposed to oxygen in the presence of water and metal catalysts. This apparatus is extensively used in lubricant manufacturing plants, oil refineries, research laboratories, and quality control laboratories.

Product Description : The apparatus consists of a thermostatically controlled oil bath with oxidation cells, oxygen distribution system, water condenser assembly, and catalyst coils as prescribed in ASTM D943. The system is designed for continuous long-duration testing with precise temperature control and uniform heating. High-quality glassware and corrosion-resistant components ensure durability, safety, and reproducible test results.

Technical Specifications

Test Method:

Oxidation Characteristics of Inhibited Mineral Oils

Standard Followed:

ASTM D943

Test Temperature:

95 ± 0.2 °C

Heating System:

Electrically heated oil bath

Temperature Control:

Digital PID temperature controller

Temperature Uniformity:

±0.2 °C

Oxidation Cells:

Borosilicate glass cells as per ASTM D943

Oxygen Supply:

Individual flow control with rotameters

Oxygen Flow Rate:

As specified in ASTM D943

Catalyst:

Copper and iron catalyst coils

Condenser:

Water-cooled glass condenser assembly

Power Supply:

230 V AC, 50 Hz, Single Phase

 

Apparatus is Supplied With

  • Thermostatically controlled oil bath

  • Oxidation glass cells (as per ASTM D943)

  • Water-cooled condensers

  • Oxygen flow meter / rotameter assembly

  • Copper and iron catalyst coils

  • Tubing and connectors

  • Digital temperature controller

  • Operating instruction manual

Optional Accessories

  • Additional oxidation cells

  • Digital oxygen flow meters

  • Automatic acid number titration setup

  • Data logging system for temperature and flow

  • Oxygen gas cylinder with regulator

  • NABL / ISO calibration certificate

Dimensions and Weight (Approx.)

Dimensions (L × W × H):

600 × 450 × 650 mm

Weight:

45–55 kg

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