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.
There are also two times in a womanâs life when itâs totally normal for her period to be irregular: when it first begins, and when menopause starts. Women typically begin getting their periods anywhere from age 10 to 15. During the first two years after starting your period, your hormones may still be adjusting. This can cause late or missed periods. Menopause generally begins between ages 45 to 55. As your body goes through the transition, your normal cycle can become irregular.