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Iso 535 Cobb Absorption Tester 10kg Metal Roller Blotting Paper Cobb Tester

Categories Paper and Board Tester
Place of Origin: China
Brand Name: Cell Instruments
Model Number: COBB
MOQ: 1 set
Packaging Details: export carton
Delivery Time: 3~5 days
Payment Terms: TT LC
Usage: Paper Testing Instrument
Warranty: 1 Year
Application: paper and boards
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    Iso 535 Cobb Absorption Tester 10kg Metal Roller Blotting Paper Cobb Tester

    ISO 535 COBB absorption tester is for the measurement of surface water absorption of paper and paper board. Loose paper, e.g. newsprint, unsized paper, e.g. blotter and other high absorbability paper is not for this tester.


    ISO 535 COBB Absorption Tester Principle

    The Cobb value of surface water absorption of paper and paperboard.:


    The calculated mass of water absorbed in a specified time by a unit area of paper or board under specified pressure and temperature conditions. It is expressed in g/㎡.

    C=(G2-G1)×100.

    C-water absorptiveness

    G2-wet mass, in grams, of the test piece

    G1-dry mass, in grams, of the test piece

    When Cobb value is less than 200~250 g/㎡ for single layer, more layers can used.


    ISO 535 COBB Absorption Tester Technical Data

    Metal roller sectional area

    100±0.2㎝2

    Metal roller diameter

    112.8±0.2mm

    Roll height

    50mm

    Blotting paper:

    200~250g/㎡

    Absorption speed:

    75mm/10min

    Smooth metal roller:

    length 200±0.5mm,mass10±0.5kg.
    Water volume:100mm±5ml.


    ISO 535 COBB Absorption Tester Standard

    ISO 535,GB/T 1540,QB/T 1668

    Configuration

    mainframe,metal roller,Cobb absorption sampler


    Quality Iso 535 Cobb Absorption Tester 10kg Metal Roller Blotting Paper Cobb Tester for sale
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