To measure accurately the Roughness (and Porosity optionaly) of paper and paperboard samples according Bendtsen method  

Standards:

• ISO 5636 / 3
• ISO 8791 / 2
• DIN 53108
• SCAN P21

Features:

• Analogue reading in seconds
• New design of the measurement head, more life-long
• No necessary to use any manostate weights
• 10 cm² measuring area 
• Compressor integrated internally
• Robust version