The Liquor chart section of the partograph is specifically designed to monitor the status of amniotic fluid during labor. It records the color and amount of liquor, helping detect abnormalities such as meconium-stained or clear fluid. Monitoring amniotic fluid is crucial because changes can indicate fetal distress or membrane rupture. Unlike fetal heart rate or cervical dilatation charts, the liquor chart directly assesses the protective environment of the fetus, guiding timely interventions. Hence, accurate documentation in the liquor chart is essential for optimal maternal and fetal outcomes during labor.

Reference: Managing Labour, World Health Organization, 2nd Edition.