Using the Cobb test method, the test area is 100cm ² +/- 0.2, and the pressure roller mass is 10kg +/- 0.5, which is suitable for the detection of Water Absorbency on the surface of sizing paper and Cardboard, and is not suitable for loose or unsizing paper.
The Water Absorbency of paper surface was measured by Cobb test method, the test area was 100cm ², the cylinder height was 50mm, the absorbent paper Basis Weight was 200~ 250g/m2, and the pressure roller mass was 10kg to ensure the accuracy of the test.
Test area of 100cm ², cylinder height of 50mm, can accurately determine the unit area of paper and Cardboard in the specified time surface absorption of water, using the Cobb test method for surface Water Absorbency test.
Test area of 100cm ², press roller mass 10kg, can accurately determine the surface of the paper liquid absorption mass, in line with international standards.
Measurement principle of scattering-transmitted light, automatic chroma compensation, Measurement range 0~ 200.0NTU, Repeatability +/- 1% F. S, support multi-point calibrating and automatic range switching.
The surface water absorption of paper and Cardboard was measured by Cobb test method, the test area was 100 +/- 0.2cm ², and the mass of the pressing roller was 10 +/- 0.5kg. The water absorption value of Cobb can be accurately calculated.
Sampling size Φ 125mm error +/- 0.2mm, thickness range 0.1~ 2.0mm, suitable for paper Cardboard surface water absorption weight detection, easy operation and high accuracy.
With 0.001 NTU resolution and +/- 2% Repeatability, Chroma compensation system eliminates specimen Color interference, and Built-in Printer facilitates real-time data recording.
High Accuracy measurement with 0.01 resolution, Chroma compensation system reduces Color interference, Built-in Printer facilitates data output, supports multi-point calibration to adapt to different ranges.
With 0.001 NTU high resolution, chroma compensation function can eliminate sample Color interference, built-in real-time printing module, multi-point calibration to meet different range requirements, Stability error is only +/- 1.5%.
The Cobb test method is used to determine the water absorption value per unit area, the test area is 100cm ², the cylinder height is 50mm, and it is equipped with Basis Weight 200-250g/m2 absorbent paper, which meets the requirements of ISO535 and GB/T1540 standards.
Color interference is avoided by chroma compensation system, Measurement range 0-500NTU, resolution 0.01, Built-in Printer real-time printing data, High Accuracy optical path system to ensure long-term stability.
Blue screen LCD module, Built-in Printer convenient data recording, increase the chroma compensation system to avoid Color interference, Measurement range 0-500NTU, resolution up to 0.001, zero drift +/- 1.5%, to ensure long-term stable work.
Using LED Illuminant to provide stable 470nm wavelength, Measurement range 0-500PCU, accuracy +/- 10PCU, support NIST traceability standard calibrated to ensure the accuracy of water quality chroma detection.
Blue LCD module and chroma compensation system are used to effectively avoid Color interference; Measurement range 0~ 200NTU, resolution 0.01; Built-in Printer is convenient for real-time printing, and unique positioning structure ensures long-term stable operation.
