Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials

NBS Smoke Density Chamber

The NBS Smoke Density Chamber test method is from the National Institute of Standards and Technology NIST (predecessor of NBS) and has been promoted and applied in many test fields. This test method can be used to detect plastic products and non-metallic materials for rail transit.
2.Key parameters
Conical Heater - is wound in the form of a truncated cone, rated 2600 W at 230 V with a heat output of 50 kW/m2.
Auto Split Shutter automatically opened to transmit radiation to the sample, Spark Igniter to ignite the sample.
Heat Flux Meter - for setting the irradiance level at the surface of the specimens, the range from 0-100KW/m2
Provided with a hinged front-mounted door with an observation window and a removed opaque door cover to the window to prevent light entering into the chamber.
3. Standards
ISO:ISO 5659-2
3 Metre Cube Smoke Density Apparatus
3 Metre Cube Smoke Density Apparatus is used formeasuring the emission when the cable or optical cable is placed horizontally underthedefinite firecondition. The equipment comprises a cubic enclosure and a photometric system.
2.Key parameters
The Light Source is Dedolight Classic Series Tungsten with 100W.
The Dedolight Tungsten power supply is 12V DC.
Velocity of light : 2000 lm~3000 lm, and color temperature : 2800K~3200K.
The Receptor Photocell is silicone type and has a spectrum reaction conform to Photopic Observer (similar to a human eye) of the International Commission on Illumination (CIE).
Supplied with customised extraction facilities and all instrumentation, fans, stands and sample mounting frames.
BS:BS 6853
IEC:IEC 61034-1&2: 2005

Post time: Nov-18-2019