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| Brand Name : | AISRY |
| Model Number : | ASR-5684 |
| Certification : | ISO |
| Price : | Negotiable |
| Payment Terms : | T/T, Western Union |
| Supply Ability : | 200 sets per month |
| Delivery Time : | 15 work days |
10kg Metal Roller Cobb Absorbency Tester Paper Testing Equipments
Use:

| 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. |

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

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