Advanced Bendtsen Permeability and Surface Roughness Tester: Precision Testing for Paper and Packaging Industries

INTRODUCTION

In the paper, packaging, and printing industries, surface quality and air flow matter for how products work, affecting printing/coating quality. The Advanced Bendtsen Permeability and Surface Roughness Tester is an automated tool that checks how much air passes through and how rough a surface is, working to ISO standards used worldwide.

WHAT IS A BENDTSEN PERMEABILITY AND SURFACE ROUGHNESS TESTER?

A Bendtsen Tester helps see how much air can pass through paper and other flat materials, and checks surface roughness/feel on paperboard and packaging. It measures: Bendtsen surface roughness, air permeance, surface quality feel, uniform feel, printing and coating fit.

COMPLIANCE WITH INTERNATIONAL STANDARDS

ISO 8791-2 (Bendtsen Roughness and Air Permeance), ISO 5636-3 (Air Permeability Measurement), ISO 5636-5 (Air Permeability Testing Methods).

WORKING PRINCIPLE

Surface Roughness Measurement: air passes through small gaps between the measuring head and the surface sample; the amount of air moving through indicates roughness.

Air Permeability Measurement: the tool checks how much air moves through the material under set pressure.

KEY FEATURES

Fully Automated Testing, High Accuracy Measurement, Multi-Parameter Analysis (roughness and air permeability in one instrument), ISO-Compliant Testing, Advanced Pressure Control, User-Friendly Interface, Durable Construction.

TECHNICAL SPECIFICATIONS

Bendtsen Roughness Range: 50 to 500 mL/min

Air Permeance Range: 0.35 to 100 um/(Pa.s)

Sample Size: 100 mm x 100 mm

Pressure Range: Up to 127 +/- 0.02 kPa

Pressurizing Gas: Clean, dry compressed air or non-flammable, non-corrosive gases

Pressure Transducer Range: 0 to 200 kPa

Reservoir Volume: 150 Litres

Pressure Controller: 1.47 +/- 0.02 kPa

Accuracy: +/-0.15% of Full Scale

Mass Flow Range: 5 to 3000 mL/min (depending on configuration)

APPLICATIONS

Paper Manufacturing, Packaging Industry, Printing Industry, Coated Paper Testing, Research and Development, Specialty Materials (porous membranes, nonwoven materials, specially made sheet products).

CONCLUSION

The Advanced Bendtsen Permeability and Surface Roughness Tester checks air flow and feel on paper, packaging, and other materials to ISO rules, giving repeatable results useful for quality control, R&D, and idea validation for paper mills, packaging makers, labs, and research groups.