Cobb Tester

Cobb Tester

Determines water absorption/penetration (cobb value) which is the quantity of water in mgs absorbed by surface of 100 cm2 of the specimen on one side only in a specified time under a specified head of water.


Specimen Water Head Mark Time of Test
Paper 10 mm 1 minute
CFB 25 mm 30 minutes
Bitumen Waterproof Paper 100 mm 18 hours


Suitable for Testing as per following Standards

IS: 1060 (Part I) – 1996
ASTM: D 3285 – 93
TAPPI: T 441 om-98
FEFCO: TM 7 1997

Salient Features
  • Provided with tilting arrangement to remove water automatically.
  • Height marks provided for maintaining correct water head.
Technical Specifications
  • Dimensions in mm L x W x H 350 x 320 x 170
  • Weight in kg 25
  • Roller Weight in kg 10
  • Cylinder Corrison Resitant Cylinder

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