ASTM D2843 Smoke Density Testing for Cables
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The STD AOTSI-NBS smoke density test chamber, from NIST (NBS's predecessor), is widely used. It tests smoke density grades of plastics, non-metallic materials in rail transit/ships, and wire/cable products, following standards like ASTME662. It offers more accurate results with a sophisticated optical sensor. Paired with other devices, it can conduct aviation smoke toxicity tests and smoke composition analysis.
Standard
ASTM American Society for Materials and Testing: ASTME662. ASTMF814
BS British Standards Institut: BS6401:1983
DIN German Standards Association: DIN5510-2
IS0 International Organization for Standardization: ISO5659-2:2012
EN Euro M standard :CSNEN45545-2+A1:2015
IMO International Maritime Organization: IMO FTPC Part 2
GB China standard: GB/ T8233:2008
NES British Naval Engineering : NES711
NFPA National Fire Protection Association: NFPA 258
Specification
| Item | Dimensions |
| Dimensions | 3.450(W) × 3.160(D) × 3.450(H)mm |
| Workbench Dimensions | 600(W) × 750(D) × 1.600(H)mm |
| Power Supply | AC 220V, 50/60Hz, 20A |
| Weight | 2.500kg |
| Total Ventilation Area | 50cm² ± 10cm² |
| Instructions | Includes |
| Tools | Computer, compressed air, vacuum cleaner |
Parameters
| Technical Parameter | Details |
|---|---|
| Operating Voltage | AC 220 V ± 10%, 50HZ |
| Light Source Voltage | DC 12V |
| Power | 2000W |
| Ambient Temperature | 25℃ ± 5℃ |
| Nominal Luminous Flux | 2000lm ~ 3000lm |
| Nominal Color Temperature | 2800K ~ 3200K |
| Air Flow Rate | ≥ 2L/min |
| Fire Supply Time | Standard time 40min (settable) |
| Timing Accuracy | ≤ 0.5s for 40min |
| Calibration Value | 100% (transmittance) |
Features
The enclosure consists of a cubic shell with dimensions of 3000mm ± 30mm (length, width, and height). The internal material of the enclosure is SUS 304 stainless steel, filled with calcium silicate fireproof material, and the exterior is made of iron with powder coating;
All internal fixtures are made of stainless steel; aesthetically pleasing and corrosion-resistant;
The total area of the ventilation holes is 50cm² ± 10cm², and they remain open throughout the test; the baffle height is 1000mm;
Equipped with wire and cable test racks and weights as required by the standard.
The test chamber door has glass observation windows on opposite sides, fitted with sealed transparent windows (minimum 100mm x 100mm) that allow light from the horizontal optical measurement system to pass through. These windows are located 2150mm ± 100mm above the ground;
The photocell and light source are positioned at the center of the windows on each of the two walls, without physical contact.
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