Applicable to the toxicity index test of non-metallic materials of halogen-free, low-smoke, low-toxic wires and cables or optical cables
The test is carried out in two parts:
First, a preliminary qualitative analysis is carried out to determine whether it contains nitrogen and sulfur?
If it is determined that nitrogen and sulfur are present, a quantitative analysis of SO2, NOX and HCN should be carried out. If it is confirmed that there is no nitrogen and sulfur, a quantitative analysis of SO2, NOX and HCN can be omitted.
EN 50305:2020 “Railway Facilities. Test Methods for Railway Locomotive Cables with Special Flame Resistant Properties”;
Toxicity Index Tester Technical Parameters
Performance
Specifications
Tube Furnace
The furnace features a balanced temperature field, low surface temperature, and a fast heating/cooling rate.
Effective Heating Chamber
600×φ42mm
Operating Temperature
800±10°C, test duration: 40 minutes
Temperature Control System
P.I.D temperature control system
Heating System
Electric heating system, power: 220V/10KW
Flow Rate Adjustment
Needle valve for flow control, flow rate: 0.33m/s
Air Source
Air compressor, flow rate: 160L/h
Combustion Tube (Material)
Refractory tube made of silicon dioxide, resistant to corrosive gases
Combustion Tube (Specs)
Inner diameter: 40mm; extension length from the inlet side of the tube furnace: 60–200mm; extension length from the outlet side: 60–100mm, leaving a gap for thermal expansion
Combustion Boat (Material)
Fused quartz tube
Combustion Boat (Specs)
Length: 100mm, Width: 25mm, Depth: 10mm
Boat Delivery Method
Bar magnet and platinum wire pulling method
Gas Collection
3 absorption bottles and 2 gas bags
Air Supply System
–
Air Flow Meter
Adjustable range: 16L–160L
Air Compressor
Provided by your company
Sampling Section
–
Sampling Device
Includes bubbling device, quartz wool, cooling pump, filter, etc.
Sample Amount
500mg–1000mg, with an analytical balance accurate to 1mg
