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

Product group
Paper and Board Tester
Model
COBB
Origin
China

Cell Instruments Co., Ltd.

China
Cell Instruments Co., Ltd.

Product description

Product Details:

Place of Origin: China
Brand Name: Cell Instruments
Model Number: COBB

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Packaging Details: export carton
Delivery Time: 3~5 days
Payment Terms: TT LC


Detailed Product Description

Usage: Paper Testing Instrument
Warranty: 1 Year
Application: Paper And Boards


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

Supplier info

Business type
Manufacturer
Year established
2014
Location
China
Exports to
Worldwide

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