Oxidation Stability Test Apparatus

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Product Description

This Oxidation Stability Test Apparatus is widely used for determine the resistance of mineral transformer oils to oxidation under prescribed accelerated aging conditions. Our offered test apparatus is accessible in various specifications or contains 4 no, test vessel/tube made of borosilicate glass provided with a B-24 cone. Our provided Oxidation Stability Test Apparatus is praised for their unique features like internal and external bath are made of stainless steel which makes the unit highly durable, direct drive stirring system, safety devices such as overheat protection, earth leakage circuit breaker and liquid level gauge.

Product Details:

Rated Voltage	220V
Power	2400W
Bath Temperature	95 Degree Celsius
Testing Bomb	4
Overall Length	210 /- 2 mm
External diameter	26 /- 0.5 mm
Wall thickness	1.4 /- 0.2 mm
Height of head	28 /- 2 mm

Introduction

This test method determines the resistance of mineral transformer oils to oxidation under prescribed accelerated aging conditions. Oxidation stability is measured by the propensity of oils to form sludge and acid products during oxidation.
Test specimen of mineral transformer oil is oxidized at bath temperature of 110 C/95 C, in the presence of a copper catalyst coil, by bubbling oxygen through duplicate test specimens for 72 and 164 h, respectively. The oil is evaluated at the end of each aging period by measuring the amount of sludge and acid formed. The test specimen is diluted with n-heptane and the solution filtered to remove the sludge. The sludge is then dried and weighed.
4 nos. test vessel / tube made of borosilicate glass provided with a B -24 cone and having the following.

Oxygen inlet tube Dimensions:

External dia: 5.0 /- 0.4mm
Wall thickness: 0.8 /- 0.1 mm
The test tube is fitted with a Drechsel head to which is attached the inlet tube which will extended within /- 2 - 3 mm of the bottom and its end ground at an angle of 60 deg to the horizontal axis as per fig 1 of IS:335:1993

One Thermostatic block of following features:

It is made of wrought aluminum block provided with four holes to accommodate four test vessels / tubes, provided with a digital PID controller, capable of maintaining the oil temperature at 100.0 /- 0.5 deg C. 4 nos.

Metallic Copper Catalyst of following dimension:

Copper catalysts consist of a wire of non - annealed commercial electrolytic copper of diameter between 1.00 and 1.02 mm. and wire shall have a length of 305 /- 1.0 mm rolled into a spiral of approx 20 mm external diameter and 50 mm in length.

Rotameters of following features: