Cloud and Pour Point Apparatus

The Cloud and Pour Point Apparatus is used to determine the cloud point (the temperature at which wax crystals first become visible as the sample is cooled) and the pour point (the lowest temperature at which the sample will still flow) of bitumen, lubricating oils, and petroleum products. The sample is placed in a jacketed test jar surrounded by a cooling bath, and its temperature is progressively lowered while periodically checking for cloudiness and, ultimately, flow behaviour when the jar is tilted.

For determining the cloud point of an oil provided it is transparent in layer 40 mm in thickness and for the pour point of any petroleum oil.It consists of a cylindrical glass jar fitted with a cork, a water tight cylindrical jacket with a disc of cork or felt at the bottom, a ring around the glass jar and a bath with cover.

The equipment consists of the following

Bath with cover fitted with a Drain Cock.

Jacket to receive Test Jar.

Graduated Jar fitted with Cork.

Insulating Gasket.

Insulating Disc.

Thermometer IP 1C, Range: -38° C to +50° C.

Thermometer IP 2C, Range: -80° C to +20° C.