Compliance with following International Standards:
ASTM D6371, IP 309, IS 1448 Part 110
Purpose:
Used to Determination of the cold filter plugging point (CFPP) temperature of diesel and domestic heating fuels by measuring the temperature, at which the sample ceases to flow through a wire mesh filter.
Summary of test method:
A specimen of the sample is cooled under specified conditions and, at intervals of 1°C, is drawn into a pipet under a controlled vacuum through a standardized wire mesh filter. The procedure is repeated, as the specimen continues to cool, for each 1°C below the first test temperature. Testing is continued until the amount of wax crystals, that have separated out of solution, is sufficient to stop or slow down the flow so that the time taken to fill the pipette exceeds 60 seconds or the fuel fails to return completely to the test jar before the fuel has cooled by a further 1°C.
Apparatus Details:
The complete assembly consists of following main parts and accessories to conduct the test
Cooling Bath - 01 No
- Dry ice bath with 02 test provision without refrigeration system (User has to place crashed ice with NACL or solid carbon dioxide just to cool the chamber of sample oil)
- Capacity : 04 Liters
Test Jars - 02 Nos
Cylindrical of Borosil make, Flat bottom with 120 ± 5 mm height. The inside diameter of test jar is of 31.5 ± 0.5 mm within constraint that the wall thickness be no greater than 1.3mm. The jar has a permanent mark at the 45 ± 1 mL level.
Jacket - 02 Nos
(2.5mm thick) - water tight, cylindrical, metal flat bottom 115 ± 3mm depth with inside diameter of 45mm and outside diameter of 48 mm. It will be supported in a vertical position in the cooling bath, so that not more than 25mm projects out of the medium and will be capable of being cleaned.
Insulating rings - 02 Nos
Made from oil-resistant plastics or other suitable material, to be placed in the bottom of the jacket to provide insulation for the bottom of the test jar. It fits closely inside the jacket and have a thickness of 6 ± 0.3 mm.
Spacer rings - 02 Nos
Approximately 5-mm thick, made of oil-resistant plastics or other suitable material, to be placed around the test jar to provide insulation for the test jar from the sides of the jacket. The spacers shall fit closely to the test jar and closely inside the jacket.
Supporting ring - 02 Nos
Supporting rings of oil resistant plastics or other suitable non-metallic, non-absorbent, oil-resistant material, used to suspend the jacket in a stable and upright position in the cooling bath and to provide a concentric location for the stopper.
Thermometer:
IP-1C and IP-2C (02 Nos) thermometers can be provided with certificate from NABL certified lab. at extra cost
Pipette with Filter unit (CFPP Unit) - 02 Nos
Pipette of clear glass with a calibration mark corresponding to a contained volume of 20 ± 0.2 mL at a point 149 ± 0.5 mm from the bottom of the Pipette. It will be connected to the filter unit. Body of Filter unit will be of Brass material and will be supplied along with 45 μm, wire mesh filters, brass screw cap, filter holder and brass cylinder.
Vacuum device - 01 No
Complete with vacuum system by 2 way glass cock with vacuum gauge of 760 mm of Hg. Graduated from 0, controlled by Needle valve system to adjust atmospheric pressure. Complete with vacuum pump of 37 Liter/min, complete mono block type, single stage with vacuum gauge fitted with suitable fine control valve to control the vacuum strength at 200 mm. Hg, run by 220 Volt, Ac.50 Hz.