*. Model : 4180AN  (Cylinder 100 cm²)

   Model : 4180BN  (Cylinder  10, 25, 100 cm²)

   Model : 4180CN  (4180A & Roller, Blot papers)

   Model : 4180DN  (4180B & Roller, Blot papers)

*. Consist of : Gurley Cobb test apparatus

                      10Kg roller, Blotting papers.

*. Roller : 10 ± 0.5 Kg

*. Test duration : 120 seconds (Generally)

   More absorbent materials : 60 seconds

*. Blotting papers : 250 sheets