Compliance with following international standards:

ASTM D943, IP 157, ISO 4263, ISO 12205

Introduction:

This test method is used to evaluate the oxidation stability of inhibited steam-turbine oils in the presence of oxygen, water, and copper and iron metals at an elevated temperature. The test method is also used or testing other oils such as hydraulic oils and circulating oils having a specific gravity less than that of water and containing rust and oxidation inhibitors.

Brief Construction Details:

The complete unit comprises of following main parts and accessories

1)  Dry Aluminum Block

1. A Rectangular solid aluminum block bath with 08 test positions
2. With wells, for test tubes, 48-51 mm in diameter (Bath opening) and 365 mm depth.
3. Outer body fabricated from Mild steel material, Powder coated in attractive shades
4. Heavy insulation between inner chamber and exterior body
5. Inner chamber is fitted with efficient heating element and PT-100 Sensor
6. Temperature is controlled by Microprocessor based PID Temperature controller
7. Supplied with over temperature protection safety and auto cut-off system
8. Temperature control accuracy : ± 0.5°C
9. Temperature display        : LED
10. Temperature range         : 40°C to 250 °C

2)  Test Tube (Glassware)

1. 04 Nos of test tubes complying to fig. 1 of ASTM D943
2. Calibration line at 300 ml ± 1.0 ml
3. Made of borosilicate glass
4. Overall Length   : 600 ± 2.0 mm
5. External diameter : 45 ± 1.0 mm (O.D.)
6. Inside Diameter   : 41 ± 0.5 mm

3)  Oxygen inlet tube (Delivery Tube) Dimensions (Glassware)

1. Nos           : 04 Nos
2. Overall Length  : 825 ± 2.0 mm
3. Width         : 38 ± 1.0 mm

4)  04 nos. Metallic Electrolytic Copper Catalyst of following dimension

1. Type   : Wire of non-annealed commercial electrolytic copper
2. Dia    : 1.63 mm
3. Length : 305 ± 1.0 mm
4. Purity  : 99% purity (No. 16 imperial wire gauge / No. 14 American Wire Gauge)

5) 04 Nos. Low Metalloid Steel Catalyst of following dimensions

1. Type   : Carbon steel wire, Soft bright annealed and free from dust
2. Dia    : 1.59 mm
3. Length : 305 ± 1.0 mm
4. Purity  : 99% purity (No. 16 Washburn and Moen gauge)

 6) 04 nos. rotameters (flow meters) of following features

1. Flow rate : (3 ± 0.1) L/H in case of ASTM D943
2. Nos     : 04 Nos

7) Silicon carbide paper Used to polish copper and steel wire prior to winding into catalyst coil.

8) ASTM 40C Thermometer to cross verify the bath temperature



9) Temperature measuring device with 04 Nos. RTD Sensor and 04 Nos. digital indicators to cross verify the oxidation cell temperature.

Note : Reagents such as acetone, hydrochloric acid, isopropyl alcohol, oxygen, n-heptane and distilled water shall be arranged by the end user.