DX-8522 (500W) 5VA/5VB Plastic Burning Tester

The DX-8522 is a professional flammability testing instrument designed for solid materials and foamed plastics with an apparent density of ≥250 kg/m³. It evaluates both flammability and penetration resistance using the 500W flame test method, fully complying with international standards including GB/T 5169.17 (5VA/5VB), IEC 60695-11-20, UL94 5VA/5VB, ASTM D 5048, and ISO 10351.
 
The tester uses two specimen shapes: long rectangular bars for assessing burning characteristics, and square plates for penetration resistance. It features a 500W burner with adjustable flame dimensions (125mm outer, 40mm inner), a 0.75m³ enclosed black test chamber, a 20° combustion angle, and a 0-99.9s adjustable timer, ensuring accurate and repeatable test results.
 
 

Application Scope
 
This tester is suitable for solid materials and foamed plastics with an apparent density of 250 kg/m³ or higher. It requires two types of test specimens to characterize material properties:
 
- Long rectangular specimens are used to evaluate material flammability and burning time.

- Square specimens are used to assess material penetration resistance.
 
The test adopts the 500W flame method, complying with standards including:
 
- GB/T 5169.17 (5VA/5VB)

- IEC 60695-11-20

- UL94 (5VA/5VB)

- ASTM D 5048

- ISO 10351

Additional Notes (from full document context)
 
(Note: The upper section of the image includes parameters for a different test system, not directly belonging to the DX-8522, but listed here for reference)
 
- Heat flux meter range: (0–15) kW/m²; Accuracy: ±0.2 kW/m²; Error: ≤ ±3%

- Heat radiation temperature range: 400–600 °C; Accuracy: ±0.5 °C; Error: ±5 °C

- Combustion gas: Propane (customer-provided); Flow rate: (0.026 ± 0.002) L/s

- Ignition system: High-voltage electronic ignition

- Exhaust system: Strong exhaust fan (flow: 39–85 m³/min)

- Combustion chamber dimensions: L1420 × W1200 × H2300 mm

- Materials: 304 stainless steel (burner, cabinet) or A3 steel with anti-corrosion plating