ISO 11925-2 / EN ISO 11925-2 Single Flame Source Tester for evaluating ignitability and flame spread of building materials under direct small flame impingement. Suitable for classification of construction products according to EN 13501-1. Model: GD-ISO11925 Applicable Standards GB/T 8626-2007 EN ISO 11925-2 DIN 53438 DIN 4102-1 Structural Features Painted enclosure for an attractive, durable finish. Combustion chamber dimensions: 700 mm (L) × 400 mm (W) × 600 mm (H).