Home > Products > 5 Paper and Board Test > COBB Tester Paper Water Absorption Testing Instrument COBB
COBB Tester Paper Water Absorption Testing Instrument COBB
- 999 Set / Sets per Month
- Qingdao, Shanghai
- T/T L/C D/P D/A Cash Other
- 7 days
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Product Details
| Brand Name | Cell Instruments | Place of Origin | China | |
| Model Number | COBB-01 | Power | Electronic | |
| Usage | Paper Testing Instrument |
Product Description
COBB-01 COBB Tester is used for assessing the water absorption of paper and paperboard through the Cobb method. It proves effective in sizing paper and determining water absorption on cardboard surfaces, but it is not recommended for use on basic paper or embossed paper with a basis weight below 50g/m2, having low sizing degree, or exhibiting numerous pinholes. Additionally, it is not suitable for assessing unsized paper and cardboard accurately, nor does it provide an accurate evaluation of the writing performance of paper or cardboard.
The Cobb tester evaluates the water absorption capability of paper or cardboard surfaces. The Cobb value represents, under specific conditions and within a specified timeframe, the mass of water absorbed by the carton board surface per unit area, expressed in grams per square meter (g/m2).
COBB ValueCobb value is the calculated mass of water absorbed in a specified time by 1 m2 of paper or board under specified conditions
Benefits● Stainless steel made
● Standard conformed metal roller
StandardsGB/T1540, ISO 535, QB/T1668, TAPPI T441
| Test Area | 100±0.2cm2 |
| Water Consumption | 100±5ml |
| Metal Roller Width | 200±0.5mm |
| Metal Roller Weight | 10±0.5kg |
| Dimension | （396*315*300）mm LWH |
| Sampling Diameter | ?125mm |
| Sampling error | ±0.2mm |
| Sampling Thickness | （0.1～2.0）mm |
| Dimension | (250*280*450) mm LWH |
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