Comparison of brands of sanitary towels

Diocesan Boys’ School Group 4 Project Fergus Chan, Dexter Cheung, Felex Lau, Geoffrey Fung

1Objectives

Penetrability of water

Penetrability of water Absorption of water

Penetrability of water Absorption of water Tolerance for mass

Penetrability of water Absorption of water Tolerance for mass Tolerance for pH

2Methods

Penetrability of water - Chromatography

Absorption of water

Tolerance for mass

Tolerance for pH

3Results

Penetrability of water – “Whisper”

Absorption of water – “Lauríer”

Tolerance for mass – “Lauríer”

Tolerance of pH – “Watsons”

4Strengths

5Weaknesses

6Improvements

All  photos  are  used  for  educa0onal  purposes.  

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