58-21 Roughness and Air Permeance Tester
  • INTRODUCTION

    The Roughness and Air Permeance Tester is an advanced microprocessor-controlled instrument for measuring the roughness and air permeance of paper and board using the Bendtsen method. The instrument incorporates significant technological advances to offer unrivalled accuracy and reproducibility.

    Test result variability inherent in Dr. Bendtsen's original design has been eliminated by measuring the air pressure in the head directly over the substrate and by the subsequent electronic regulation of that air pressure.

    APPLICATIONS

    Paper

    SPECIFICATIONS

    • Meets ISO 5636/8791/2, BS 4420, DIN 53108/53120, SCAN P21
    • Factory calibrated to traceable National Standards

    INCLUDED ACCESSORIES

    • Hardness weight, ground glass plate, plan weight (four measuring positions), measuring head, roughness only.

    OPTIONAL ACCESSORIES

    • Air permeance measuring head.

    FEATURES

    • Unique extended range of 0–5000 ml per minute
    • Easily interchangeable measuring lands
    • Selectable air permeance units in ml/min. or µm/Pa.s
    • RS-232 serial data output

    INSTRUMENT SIZE

      Depth:   350 mm (14 in.)
      Height:   240 mm (10 in.)
      Width:   350 mm (14 in.)
      Weight   25 kg (55 lb)

    CONNECTIONS

      Electrical:   Specify voltage requirements when ordering
      Air:   (instrument quality) 600 kPa

    Download PDF Product Data Sheet