Application Function

The COBB Absorption Tester is a conventional instrument for the water absorption test of paper and paperboard, also known as a paper surface absorption weight tester. This instrument uses the Cobb test method in various methods of absorption test, so it is also called the absorbable absorbability tester.

Standards

GB/T 1540 QB/T 1668 ISO535 TAPPI T441

Product Features

Accurate Measurement: The Tester features a 100±0.2cm² test area and a 50mm cylinder, delivering 100ml±5ml water for precise absorption tests.
Rotational Design: Utilizes a rotation structure with a 200±0.5mm roller weighing 10±0.5kg, ensuring consistent results at a 75mm/10min absorption rate.
Durable Build: Measures 400x280x400mm and weighs 26.5kg, with 200-250g/m² filter paper for reliable testing.
Standard Compliance: Meets GB/T 1540, QB/T 1668, ISO 535, and TAPPI T441 for standardized absorption testing.

Key Technical Parameters

Standards: GB/T 1540, QB/T 1668, ISO 535, TAPPI T441
Internal Area of Metal Cylinder: 100±0.2cm²
Height of Cylinder: 50mm
Test Water Volume: 100ml±5ml
GSM of Filter Paper: 200–250g/m²
Rate of Absorption: 75mm/10min
Roller Length: 200±0.5mm
Roller Weight: 10±0.5kg
Dimension: 400 x 280 x 400mm
Net Weight: 26.5kg

Why Choose the COBB Absorption?

The COBB Tester ensures precise water absorption testing with its rotational design and robust build. Its compliance with GB/T 1540 and other standards makes it a top choice for paper industry testing.