*Explanation of the letters IP is given in IEC 60529 (Ed. 2.1), clause 4.1 First Digit: Solids The first digit indicates the level of protection that the enclosure provides against access to hazardous parts (e.g., electrical conductors, moving parts) and the ingress of solid foreign objects.ontact DSM&T on your next project and see what we can do for you. Page 1 of 3 IP RatIngIP Code The IP Code (or International Protection Rating, sometimes also interpreted as Ingress Protection Rating) * consists of the letters IP followed by two digits and an optional letter.
The basal plate, the peripheral region of the placenta on the maternal side that is in contact with the uterine wall, is made up of two tissues: embryonic tissue (cytotrophoblast, syncytiotrophoblast), on the one side, and of maternal tissue (decidua basalis) on the other.he fetal part of the placenta is made up of the chorionic plate with its placental villi, the cytotrophoblast layer and the intervillous spaces.
The placenta is an organ attached to the lining of the womb during pregnancy, and linked to the baby by the umbilical cord. It passes oxygen and nutrients from the mother's blood supply to the baby. Waste products from the baby, such as carbon dioxide, pass back along the umbilical cord to the placenta.he placenta is an organ attached to the lining of the womb during pregnancy, and linked to the baby by the umbilical cord. It passes oxygen and nutrients from the mother's blood supply to the baby. Waste products from the baby, such as carbon dioxide, pass back along the umbilical cord to the placenta.