Nbs Smoke Density Test Chamber by ISO5659-2 and ASTM E662

The test method of NBS Smoke Density Test Chamber is derived from the National Institute of Standards and Technology NIST (predecessor of NBS) in the United States, and has been promoted and applied in many testing fields.This test method can be used to detect the smoke density level of plastic products,non-metallic materials in rail transit, non-metallic materials in ships, wire and cable products, etc.According to this testing method, the generally applicable standards are ASTM E662, ISO 5659-2, and the NES 711 smoke density testing method in national standards.This test standard has more accurate test results than the previous method of building material smoke density tester. At the same time, the optical sensor uses a more precise photomultiplier tube, which can capture the subtle changes in smoke content in the box; If other testing devices are selected, such as the Delge gas detection tube, aviation standard smoke toxicity testing can be carried out, and it can be connected with the FTIR Fourier infrared transform equipment to complete qualitative and quantitative analysis of smoke content.

Applicable Industries: Rail Transit, Aviation Materials, Marine Materials, Cables and Wires, and Other Fields

ASTM E662:Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials;

BS 6401:British Standard Method for Measurement,in the laboratory, of the specific optical density of smoke generated by materials;

NFX 70-100:for assessing F classification (smoke density and toxicity);

UL 2556:wire and cable test methods (for smoke emission);

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 The Products Of Combustion From Small Specimens Of Materials ;

GBJ 1916:General Specification for Low-Smoke Cables and Flexible Wires for Shipboard Use (Smoke Density Test Section)

HB 6577:Smoke Density Test Method for Non-Metallic Materials in Civil Aircraft Cabin Interiors;

EN 45545-2+A1:2022

BS EN 1021

IMO FTPC Part 2

DIN 5510-2

NFPA 258

ASTM F814

1. The internal dimensions of the smoke density box testing chamber are 914mm X 914mm X 610 mm, and both the inner and outer walls are treated with PTFE coating, which can resist the erosion of strong corrosive gases and greatly extend the service life of the box;
2. The box adopts a fully open door design scheme, which makes it easier for users to clean the inside of the testing box. When replacing different standard testing accessories, the efficiency can also be greatly increased;
3. Install auxiliary heating devices on the outer wall of the test box compartment, and set the temperature inside the box according to different standard requirements;
4. Install explosion-proof aluminum foil device inside the box, which can reduce the personal risk of testing personnel in case of accidents;
5. There is a pressure relief port at the top of the box, which is connected to a pressure regulating capacity bottle and can adjust the internal pressure of the box;
6. Both the top and bottom of the box are equipped with automatic moving cylinders for inhaling and discharging smoke;

7. The smoke box is equipped with ASTM E662 radiation furnace device, it can provide 25KW/M2 thermal radiation output;

8. The smoke chamber has an ASTM E662 standard six head burner, it can be used in conjunction with a radiation furnace for flame combustion testing;
9. Provide air-cooled copper plate calorimeter, which can adjust its surface temperature using back cooling method during testing;
10.The smoke density chamber is equipped with ISO 5659-2/GB/T8323 radiation cone device, it can provide 50KW/M2 thermal radiation output;
11. Provide ISO 5659-2/GB/T8323 standard open flame burners, which can be used for flame combustion testing with a radiation cone;
12. Provide SB water-cooled heat flow meter, with accompanying standard measurement certificate;
13. It can be equipped with a self circulating cooling water source, without the need for an external cooling water source, making it convenient for users to use;
14. Thes optical smoke box is equipped with a weighing device, capable of conducting MOD smoke density testing and material thermogravimetric testing;
15. The sensor has a range of 0-2000g and an accuracy of 0.1g;
16. It is equipped with NES 711 open flame burner and mixing fan(Optional);

17. The changeover between the radiant furnace and the radiant cone is made through aviation connectors — users simply plug or unplug to switch between test apparatus for different standards.

18. An optical dark box is mounted on top of the chamber. The light receiver is a side-window photomultiplier tube with S-4 spectral response, achieving light transmittance accuracy of up to 0.0001%.

19. According to changes in smoke density conditions, the instrument automatically switches among three ranges: Clear, Filter, and Dark.

20. An ND2 neutral density filter is installed in the dark box, which facilitates user self-calibration and can also be switched in automatically during testing.

21. An incandescent lamp light source is located at the lower part of the chamber, providing uniform light spot output.

22. The smoke density test chamber features an integrated design equipped with a touchscreen PC. Users can operate the test software, with the entire test process set up and controlled by computer.

23. A built-in printer is provided. Upon completion of the test, users can print the test report through the test software.

IV.Specification

Key Configurations

PC: 17" Touch Screen Panel
Furnace: generates fixed calories of 25 kW/m2
Cone: can generate 10 ~ 70 kW/m2 of variable radiant heat, and this radiant heat is measure using the Schmidt-Boelter sensor type heat fluxmeter

Electrical Requirements:

Power Supply: 220 V AC, 60 Hz, 15 A

Environmental Requirements:

Indoor use only
Altitude: up to 2000 m
Ambient temperature: 13–30 °C (56–86 °F)
Relative humidity: 25–75%
Storage temperature: 10–43 °C (50–110 °F)
Storage relative humidity: 20–80%
Installation category: II
Pollution degree: 2

Gas Supply Requirements:

Compressed air: minimum supply pressure 0.5 MPa, M6 quick-connect coupling
Propane gas: minimum supply pressure 0.5 MPa, explosion-proof gas hose with M6 inner diameter

1. What's the delivery time?

   About 60days.

2. What's your payment terms?

   30% paid by T/T in advance,70% paid by by T/T before shipping.

3. What's your guarantee terms?

   The warranty of all products is 1 year.During this period,we are responsible for all faults caused by us.And we can supply life-long technical support.

4. Can you supply training?

   We can supply training in our factory and online training for free.If onsite installation and training are required,please pay for tickets,accommodation and salary USD280/Day for every person.