BACKGROUND: A review of the literature showed that the core competencies needed by newly graduated Chinese nurses were not as of yet undocumented. OBJECTIVE: To develop a psychometrically sound instrument for identifying and measuring the core competencies needed by Chinese nursing baccalaureate graduates.
A&P here. Zinc chromate is used as a primer on aluminum surfaces as a conversion process to inhibit corrosion. Since nearly all modern aircraft skins and structures are made from aluminum, this compound and its derivatives are the most common primers seen in aircraft manufacturing.
Silicate-or epoxy zinc primers â The superior protection April 2006 Page 1 Abstract The application of zinc-rich primers on ferrous substrates is a very efficient method of anticorrosion protection.It is a known fact that to achieve a long life coating system you need a zinc primer as a first coat.ost of the zinc primers will still have cathodic protection after 100 days and the primers with high zinc content applied in high film thickness will last for more than 300 days. Compared to real life testing of zinc primers this is not very long but still it is almost a year.