A Honor Society of Nursing (STTI) answered. Ovulation usually takes place about halfway through a normal 28-day menstrual cycle. After ovulation, the body produces high levels of the hormones progesterone and estrogen. The hormones thicken the lining of the uterus in anticipation of a fertilized egg. If no fertilization occurs after ovulation, after about 14 days the lining of the uterus is shed to begin menstruation.
Freebase(0.00 / 0 votes)Rate this definition: Safety data sheet. A safety data sheet, material safety data sheet, or product safety data sheet is an important component of product stewardship and occupational safety and health.
If you are a manufacturer, who is looking for the MSDS form to create a sheet, OSHA's Hazard Communication Standard (HCS) specifies certain information that must be included on MSDSs, but does not require that any particular format be followed in presenting this information (see 29 CFR 1910.1200 (g) ).