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Vertical & Horizontal Flame Chamber is a plastics flammability standard released by Underwriters Laboratories of the USA. The UL-94 standard classifies plastics according to how they burn in various orientations and thicknesses.
Horizontal Flame Tests：
UL-94-HB: slow burning on a horizontal specimen; burning rate
Standards:
UL 94 GB2408 IEC60695-11 ISO 1210 IEC60707 GB/T 5169
FEATURES:
A bench mounted draft free combustion chamber having a large inside volume of 1.0m3 and fitted with an interior light and exhaust fan to enable simple evacuation of combustion products
Large door and window made from toughened safety glass giving a generous view of the specimen during a test.
Specimen holders.
Fully adjustable horizontal and vertical specimen supports.
A burner in compliance with ASTM D 5025, with simple angle adjustment (0°, 20°, 45°) and precision gas control system including gas flow meter, pressure regulator and pressure gauge.
Two access ports enabling easy entry to the chamber for movement of the burner and specimen.
A burner wing tip.
Three digital test duration timers for accurate but simplified operation
Vertical Flame Tests：
UL-94-V2:
burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
UL-94-V1:
burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
UL-94-V0:
burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
UL-94-5VB:
burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.
UL-94-5VA:
burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole
Technical parameter:
Work Power: 220V AC 50HZ
Burning Time: 0~999.9S(Adjustable)
Afterflame Time: 0~999.9S(Adjustable)
After-blanch Time: 0~999.9S(Adjustable)
Burning Angle: 0°,20°,45°optional
Flame Height: 20mm~175mm adjustable
Gas Flow: 0.03~0.3ml/Min
Gas Pressure: 0 ~16 Kpa pressure gauge ±200mm spout
Burning Lamp: Internal tube diameter: 9.5±0.3mm,Length:100mm±10mm
Time Device: It can be accurate to 0.5S.
Linear Measure: In millimeter.
Pressure Gauge: It can measure 200mm water, taking 5mm as the increment.
Flow Meter: The maximum measurement accuracy is ±2%
Position Adjustment: Sample clamp bracket can be up and down, left and right controlled, combustion seat can be adjusted back and forth, the stroke adjustment is greater than 300 mm.
ITRI Innovation’s UK laboratory is extremely experienced at providing UL-94 results, with a fast turnaround, at very competitive rates.
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