+91 (20) 2422 2974, 2422 9125
Plot 6, Electronic Co-op Estate, Pune-Satara Road, Pune.

Paper & Package Testing Machines

Cobb Tester


  • Provided with tilting arrangement to remove water automatically.
  • Spring loaded clamp for easy insertion and removal of specimen.
  • Height marks provided for maintaining correct water head.
  • Bright chrome plated brass cylinder to avoid corrosion and table stand with enameled paint.

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 10mm 1 Minute
CFB 20mm 30 Minute
Bitumen Waterproof Paper 100mm 1 Hour

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

Technical Specifications

Dimensions in mm (L x W x H) 350 x 320 x 170
Weight in Kgs 25