Description Overview Used to determine the breathability of a variety of textile fabrics, including industrial fabrics, non-woven fabrics and other breathable materials. Related standards: GB/T 5453, GB/T 13764, ISO 9237, ISO 5636, ASTM D737 etc. Instrument Characteristics Automatic sample clamping, automatic nozzle replacement, fast test. Microcomputer processing, the test results are displayed directly, no manual table calculation is required. Built-in continuous test mode, the test unit can be switched as required. LCD menu operation and computer interface. Specifications Sample pressure difference range: 1 to 4000 Pa. Measurable air permeability: 1 to 40000 mm/s. Measurement error: ≤ ± 2%. Measurable fabric thickness: ≤ 8 mm. Test areas: 5 cm², 20 cm², 50 cm², 100 cm²; also Φ50 mm (≈19.6 cm²) and Φ70 mm (≈38.5 cm²). Nozzles: 11 in total (digital settings are automatically changed). Nozzle codes and diameters: code 00 (0.8 mm), 01 (1.2 mm), 02 (2 mm), 03 (3 mm), 04 (4 mm), 05 (6 mm), 06 (8 mm), 07 (10 mm), 08 (12 mm), 09 (16 mm), 10 (20 mm). Data processing capacity: ≤ 200 tests. Power supply: AC220V, 50 Hz, 2 kW. Weight: 80 kg. Dimensions: 1250 × 700 × 1250 mm.