Water Absorptiveness of Paper and Board Test Machine Cobb Cobb Absorption Tester

• Customization: Available
• Warranty: 12 Months
• Usage: Textile Fabric Testing, Carton Package Test Equipment
• Model NO.: A003A
• Automatic Grade: Semi-Automatic
• Appearance Quality Testing Machine Type: Cobb Cobb Absorption Tester
• Fabric Style Testing Machine Type: Cobb Cobb Absorption Tester
• Technological Characteristic Testing Machine Type: Cobb Cobb Absorption Tester
• Textile Fabric Testing Machine Type: Cobb Cobb Absorption Tester
• Universal Textile Testing Machine Type: Cobb Cobb Absorption Tester
• Certification: CE
• Condition: New
• After-sales Service: 12 Months
• Standards: ISO535
• Weight: 32kg
• Certificate: CE, ISO 17025
• Power Supply: AC220V 50Hz
• Cobb Cobb Absorption Tester: Surface Water Absorption of Paper and Board
• Transport Package: Standard Export Wooden Case
• Specification: 396x315x300mm
• Trademark: UTSTESTER
• Origin: China
• HS Code: 90248000
• Package Size: 50.00cm * 40.00cm * 40.00cm
• Package Gross Weight: 50.000kg

Product Description

Product Description

To determine the water absorptiveness of sized paper and board, including corrugated fiberboard, under standard conditions.

It may not suitable for paper of grammage less than 50g/m2 or embossed paper. It is not suitable for porous papers such as newsprint or unsized papers such as blotting paper or other papers having a relatively high water absorptivenss for which ISO 8787 is more suitable.

This instrument is only capable of testing surface water absorption of paper and board. It is not applicable to exactly evaluate the writing performance of paper and board.

Standard

ISO535    (Paper and board-Determination of water absorption-Cobb method)
GB/T1668 (Paper and board-Determination of water absorption-Cobb method)
GB/T1540 (Paper and board-Determination of water absorption-Cobb method)
TAPPI T441 Water absorptiveness of sized(non-bibulous) paper, paperbaord, and corrugated fiberboard(Cobb test)

 
Test Principle
A test piece is weighed immediately before and immediately after exposure for a specified time of one surface to water, followed by blotting. The result of the increase in mass is expressed in grams per square meter(g/m2)

COBB Definition
The value of paper and cardboard surface water absorbing capacity (Cobb): the unit area of paper and cardboard in a certain pressure and temperature, within the time specified the absorption of water by surface to g / m*m meter.

The specific formula is as follows:
C = (G2 - G1) x 100.
C - value of Cobb water absorption;
G2 - the sample quality after absorbing water;
G1 - the sample quality before absorbing water

Products Presentation

Product Parameters

Model	Y025
Measurement length	250±1mm
Shrinkage measurement accuracy	0.1%
Shrinkage force measuring range	0~25N
Shrinkage force measurement accuracy	0.1N
Heating range	Room temperature~250ºC
Temperature Control Precision	±0.1ºC
Timing range	0~999S
Power supply	AC220V 50Hz
Overall Dimension	LxWxH:520mmx375mmx510mm
Weight	35kg

 

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FAQ

Q: How is your service?

  - All of test devices will be calibrated and debugged before delivery to guaranty the quality.

  - Our professional after-sale team will help you solving any problem within 24 hours* 7 days by emails or videos 
  - English operation manual and operation video will guide you how to use it.
  - On-site machine training & installation can be provided with certain charges.

Q: What's your warranty period?

A.12 months. In case of product problems, we provide needed spares parts for free during the warranty (exclude consumables and man-made damages)

Q: What's the payment term?
A: Usually TT, L/C are available. For others, please contact with us for negotiation.

Q: What's your lead time?

A.We have professional production line and stuff whom can make a nice quality in a short time. Usually, within 5-25 days is ok, which is based on the stock status.

Q: Are you able to provide a ISO 17025 calibration certificate?
A: Yes, we generally provide two calibration certificates(optional).
• ISO 17025 certificate provided by a third party inspection company with charges.
• Calibration certificate provided by UTS without charges.

Q: Can you send report of fumigation report?
A: Our packing is composite board, not log, so it do not need fumigation treatment.


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