UL94 Horizontal / Vertical Flammability Tester for Plastic Materials
Product information
Horizontal and Vertical Flammability Testing Machine
UL 94 flame chamber. Horizontal flame chamber, vertical flame chamber
For the flammability testing of plastic materials used in consumer electric devices and appliances. Stainless steel construction with black interior and large sliding window for easy viewing. Includes a fully adjustable specimen support and precision gas flow controls.
Testing Standards
UL 94-2006 IEC 60695-11-3 IEC 60695-11-4
UL94:Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
UL94HB: Horizontal Burning Test
V-0,1,2: 20mm Vertical Burning Test
94-5VA,B: 500W(125mm) Vertical Burning Test
94VTM-0,1,2: Thin Material Vertical Burning Test
94HBF,94HF-1,2 : Horizontal Burning Foamed Material Test
IEC 60695-11-10:Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods
IEC 60695-11-20: Fire hazard testing - Part 11-20: Test flames - 500 W flame test methods
IEC 60695-11-4:Fire hazard testing - Part 11-4: Test flames - 50 W flames-Apparatus and conformational test method
IEC 60695-11-3:Fire hazard testing - Part 11-3: Test flames - 500 W flames-Apparatus and conformational test method
Technical parameters
| Kinds |
500W(5V class ) |
50W(HB/Vclass) |
| Test Flame |
500W(burning test for V-0,V-1,V-2 classification) |
50W(burning test for V-0,V-1,V-2 classification) |
| Burner Tube |
Internal diameter: Φ 9.5mm±0.3mm |
Internal diameter: Φ 9.5mm±0.3mm, |
| Burning Angle |
0°,20°,45° |
0°,20°,45° |
| Thermocouple |
Type K (Ni/Cr - Ni/Al) |
Type K (Ni/Cr - Ni/Al) |
| Thermocouple Size |
0.5 mm |
0.5 mm |
| Standard Copper Block |
9mm±0.01mm,
weight:10g±0.05g before drilling. |
5.5mm±0.01mm,
weight:76g±0.01g before drilling. |
| Time for Temperature to Increase |
From 100°C±5°C to 700°C±3°C; 54s±2s (preset) |
From 100°C±5°C to 700°C±3°C;
44s±2s (preset) |
| Gas Flow |
965±32ml/min |
105±10ml/min |
| Gas Supply |
methane,min.98% purity |
methane,min.98% purity |
| Water-column |
125m±5mm |
‹10mm |
| Test Time |
54±2s |
44±2s |
| Flame Height Indicator |
40±1mm |
20±1mm |
| Volume Of Chamber |
>0.5m³, black interior |
>0.5m³, black interior |
| Conform to standard |
UL94,IEC60695-11-3,IEC60695-11-20 |
UL94,IEC60695-11-4,IEC60695-11-10
|
Applications
- Flammability testing of plastic materials used in consumer electrical devices and appliances
- Quality control and certification testing for plastic component manufacturers
- R&D laboratories evaluating new plastic material formulations
- Third-party testing facilities and certification bodies
- Material classification per UL94 HB, V-0, V-1, V-2, 5VA, 5VB, VTM, HBF, HF-1, HF-2 ratings
- Compliance testing for products requiring IEC 60695 certification
- Thin material vertical burning tests (VTM-0, VTM-1, VTM-2)
- Horizontal burning tests for foamed materials (HBF, HF-1, HF-2)
Frequently Asked Questions
Q1: What is this equipment used for?
A1: This tester evaluates the flammability of plastic materials used in electrical devices and appliances, classifying them per UL94 ratings such as HB, V-0, V-1, V-2, 5VA, and 5VB to help manufacturers meet product safety requirements.
Q2: What standards does it comply with?
A2: The equipment complies with UL 94-2006, IEC 60695-11-3, IEC 60695-11-4, IEC 60695-11-10, and IEC 60695-11-20, covering both 50W and 500W flame test methods.
Q3: What materials can be tested?
A3: Plastic materials used in parts for devices and appliances, including rigid plastics, thin materials (VTM), and foamed materials (HBF/HF-1/HF-2).
Q4: What is the difference between 50W and 500W testing?
A4: The 50W configuration is used for HB and V-classification tests (V-0, V-1, V-2), while the 500W configuration is used for 5V-classification tests (5VA, 5VB) which require higher flame energy.
Q5: What gas does this equipment require?
A5: The tester requires methane gas with a minimum purity of 98%. Gas flow rates are 965 ± 32 ml/min for 500W tests and 105 ± 10 ml/min for 50W tests.
Q6: Does the test result reflect real-world fire hazards?
A6: No. The test measures relative flammability performance under controlled laboratory conditions and does not represent actual fire hazards that may occur in real-life scenarios.
Q7: What are the chamber dimensions and construction?
A7: The chamber is constructed from stainless steel with a black interior and a volume greater than 0.5m³. It features a large sliding window for easy viewing during tests.
Q8: Is the timer adjustable?
A8: Yes, the digital timer is adjustable from 0 to 999.9 seconds with an accuracy of ±0.1s, allowing flexibility for various test procedures.
Flammability Tester ASTM D635.pdf
What is UL94 Horizontal & Vertical Flammability Tester?
UL94 Horizontal & Vertical Flammability Tester is a testing device which is utilized to conduct the Standard test for ensuring the Flammability performance of Plastic Materials which are used for Parts in Devices and Appliances. This is to note that the test doesn’t show the real hazards faced by the specimen in real-life fire accidents.
