Cleveland Open-Cup Flash Point Tester

Petroleum products flash point measurement method should be divided into closed cups and open cup methods, which is convenient and fast, and meets standards such as national standards, the United States, and the European Union. Widely used in railway, aviation, electricity, oil industry and scientific research departments, etc., Mainly determined by the nature of petroleum products and use conditions.

Let's take a closer look at the difference between the closed cup method and the open cup method.

Different uses

1. The purpose of open flash points: Mostly used for lubricating oil and heavy oil products.

2. The purpose of closed flashes: Light oil products with greater evaporation, such as solvents, kerosene, diesel, transformer oil, etc., because the measurement conditions are similar to the actual storage and use conditions of light oil products, it can be used as a regard. The basis for fire safety control indicators.

Different experimental principles

1. Experimental principle of opening flash point: The principle of open flash point measurement is to install the sample into the test cup to the specified carvings. First increase the temperature of the sample, and then slowly heating. When it is close to the flash point, the constant speed is heating up. At the specified temperature interval, a small test flame passes the trial cup horizontally, and the minimum temperature of the steam on the surface of the liquid surface is used as the minimum temperature of the steam on the surface of the liquid surface as the measurement result of the opening flash point.

2. Experimental principles of closed flashes: When the concentration of oil and gas and air on the oil surface increases, the lowest temperature of the light fire flashing fire is called flash point.

Different definitions

1.Definition of open flash point:  The results measured by the stipulated opening flash point determination of the opening flash point are called the opening flash point, which is represented by ℃

2. Definition of closed -mouth flash point: The results measured by the specified closed cup flash point determination device are called closed cup flash points, which is represented by  ℃. Refers to the minimum temperature when the flammable liquid or the steam generated by the flammable liquid or the solid surface is tested under the influence of the flame.

It is still recommended to choose GD-3536D Fully-Automatic Cleveland Open-Cup Flash Point Tester. Manual instruments save money, the operator's high requirements, and the different habits of each person and the site test conditions will affect the test results.