Why is the smoke density test important?

A smoke density value is determined using a method in which the flame emissions obstruct an optical light path. These two statistics can play a critical role in determining the properties of materials in, and around places and spaces where fire and smoke conditions can affect the impact and safety of people.

 Let’s take a look at the scope of use and application of the ASTM D2842 Building Materials Smoke Density Tester.

The Smoke density tester can measure the smoke density of burning or decomposition of plastics.​ 

This building materials smoke density tester meets all the technical parameters and requirements specified in the GB GB / T8627-2007,  and can be used to measure and describe the heat and flame response of  materials, products and components under a controlled laboratory condition. Measuring the static smoke production of building materials under the test conditions of combustion or decomposition is extremely important for predicting fire hazards and their fire treatment.

Product Feature and Application of the Smoke Density Tester

1.The test chamber is made of Teflon as a coating to resist the smoke from the combustion and greatly extend the life of the product.
2.The red letter “EXIT” font on the bottom of the box is installed, and the tester can discriminate the clear and fuzzy state of the sample through the transparent observation window;
3.The test light source is an incandescent lamp, the photoelectric sensor is a silicon photodiode, the silicon photodiode has a cosine calibration function, and is equipped with a color filter to filter out ultraviolet light and infrared light that are not recognized by the human eye, and has excellent human eye matching degree. ;
4.The main burner is subjected to flame shock at a pressure of 276 KPA, and an auxiliary burner is provided to perform flame impact on the dripping object;
5.The auxiliary burner gas pressure is 138 KPA, and the molten dripping is further burned;
6.The standard test software can not only display the transmittance value per 15s optical path, but also draw the transmittance test curve. After the test is finished, the software can display the SDR smoke density value, that is, the smoke integral value;
7.Through the test software, the test reports of the three sets of test samples can be synthesized to draw a SDR smoke density development curve;
8.The computer software can be used to compare the three sets of test results SDR at the same time, and automatically determine whether the test results can be met;
9.Data can be output from the computer, and print and printable test reports can be connected for user convenience.