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.
Overview. A Material Safety Data Sheet (MSDS) is required under the OSHA Hazard Communication Standard. The MSDS is a detailed informational document prepared by the manufacturer or importer of a hazardous chemical. It describes the physical and chemical properties of the product.MSDS s contain useful information such as flash point, toxicity, procedures for spills and leaks, and storage guidelines. Material Safety Data Sheet (MSDS) is required under the OSHA Hazard Communication Standard. The MSDS is a detailed informational document prepared by the manufacturer or importer of a hazardous chemical.