The outside dimensions of a 200-litre drum are typically 23 inches (584 mm) diameter at the top or bottom rim, 23.5 inches (597 mm) diameter at the chines (ridges around drum), and 34.5 inches (876 mm) height. Exact dimensions are specified in ANSI MH2.
The menstrual cycle is from Day 1 of bleeding to Day 1 of the next time of bleeding. Although the average cycle is 28 days, it is normal to have a cycle that is shorter or longer. Girls usually start having menstrual periods between the ages of 11 and 14. Women usually start to have fewer periods between ages 39 and 51. Women in their 40s and teens may have cycles that are longer or change a lot.
Normal vaginal bleeding, or menstruation, occurs every 21 to 35 days when the uterus sheds its lining, marking the start of a new reproductive cycle. A menstrual period may last for just a few days or more than a week. Your flow may be heavy or light and still considered normal.