德国PTI表面粗糙度测试仪根据本特森来测量透气性和表面粗糙度，满足标准:ISO 8791-2, ISO 5636-1, ISO 5636-3，型号：N3500
Tester f or Air Permeability and Surface Roughness according to Bendtsen, manual
Code: N3500
Applicable standards:
ISO 8791-2
ISO 5636-1
ISO 5636-3
Specifications
� Measuring ranges (rotameter tubes):
� 300-3,000 ml/min
� 50-500 ml/min
� 15-150 ml/min
� Measuring head for surface roughness tests
� Measuring head (porosity head) for air permeability tests
� Compressor included in delivery
Technische Daten
1. Electricity: 230 V, 50 Hz
2. Water supply: None
3. Compressed air: None
4. Dimensions (WxDxH): 50x50x50 cm
5. Net weight: 10 kg
6. Gross weight: 18 kg