ISO 5659 ASTM E 662 Plastic NBS Smoke Density Test Chamber Flame Tester

ISO 5659 NBS Plastic Smoke Density Tester Product Introduction:

The test method of the NBS smoke density test box originated from the National Institute of Standards and Technology (NIST, formerly NBS) of the United States. It has now become an international test method widely used in many fields. It is suitable for the smoke density level assessment of products such as plastic products, rail transit non-metallic materials, ship non-metallic materials, and wires and cables. This method follows standards such as ASTM E662, ISO 5659-2, and NES 711. Compared with traditional building material smoke density test technology, it uses high-precision photomultiplier tubes as optical sensors, which can capture subtle changes in smoke concentration in the box in real time, significantly improving the accuracy and reliability of test results. In addition, through extended configuration (such as Dräger gas detection tube), it can meet the smoke toxicity testing needs of aviation materials; if combined with FTIR Fourier transform infrared spectrometer, it can also achieve qualitative and quantitative analysis of smoke components, providing more comprehensive data support for material safety performance evaluation. With its versatility and high sensitivity, this technology has become an important tool for modern flame retardant and fireproof material research.

ISO 5659 NBS Plastic Smoke Density Tester Standards:

• ASTM E 662 : Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials
• ISO 5659-2 : Plastics-Smoke generation -Part 2: Determination of optical density by a single-chamber test
• NES 711 : Determination of the Smoke Index of Products of combustion from Small Specimens of Material

ISO 5659 NBS Plastic Smoke Density Chamber Technical Specification:

ISO 5659 NBS Plastic Smoke Density Chamber Features:

1. The internal dimensions of the smoke density chamber test chamber are: 914mm X 914mm X 610 mm. Both the inner and outer walls are treated with Teflon coating, which can resist the erosion of highly corrosive gases and greatly extend the service life of the box;
2. The box adopts a full-door design, which allows users to clean the inside of the test box more easily, and the efficiency can be greatly increased when replacing different standard test accessories;
3. An auxiliary heating device is installed on the outer wall of the test box cabin, and the temperature inside the box can be set according to different standard requirements;
4. An explosion-proof aluminum foil device is installed in the box to reduce the personal risk of test personnel in the event of an accident;
5. A pressure relief port is opened on the top of the box, which is connected to the pressure regulating capacity bottle to adjust the internal pressure of the box;
6. Automatically movable cylinders are installed on the top and bottom of the box for inhaling and exhausting smoke;
7. Equipped with ASTM E662 radiation furnace device, it can provide 25KW/M2 heat radiation output;
8. Equipped with ASTM E662 Standard six-head burner, with radiation furnace, can be used for flame combustion test;
9. Provide air-cooled copper pan calorimeter, the back cooling method can be used to adjust its surface temperature during the test;
10. Equipped with ISO 5659-2/GB/T8323 radiation cone device, can provide 50KW/M2 heat radiation output;
11. Provide ISO 5659-2/GB/T8323 standard open flame burner, with radiation cone, can be used for flame combustion test;
12. Provide SB water-cooled heat flow meter, with standard measurement certificate;
13. Can be equipped with self-circulating cooling water source, no external cooling water source is required, convenient for users to use;
14. Equipped with weighing device, can be used for MOD smoke density test and material thermal weight loss test;
15. The sensor range is 0-2000g, with an accuracy of 0.1g;
16. Equipped with NES 711 Open flame burner and stirring fan;
17. The switch between the radiation furnace and the radiation cone is connected by aviation connectors. Users only need to plug and unplug to complete the replacement between different standard test devices;
18. An optical dark box is installed on the top of the box. The light source is a side-window photomultiplier tube, S-4 frequency response, and the transmittance accuracy can reach 0.0001%;
19. It can automatically switch to Clear, Filter and Dark according to the change of smoke density state;
20. The ND2 neutral extension filter is installed in the dark box, which is convenient for users to self-calibrate and can automatically switch gears during the test;
21. The lower part of the box is an incandescent light source, which can provide uniform spot output;
22. The smoke density test box is an integrated design, equipped with a touch screen computer. Users can use the test software and the whole process is computer-set and controlled;
23. It comes with a printer device. After the test, the user can print the test report according to the test software.