Stool Culture. Test Overview. A stool culture is a test on a stool sample to find germs (such as bacteria or a fungus) that can cause an infection. A sample of stool is added to a substance that promotes the growth of germs. If no germs grow, the culture is negative. If germs that can cause infection grow, the culture is positive.
color and is used for irrigation, water handling and other relatively low pressure jobs. Schedule 80 PVC is. usually dark gray in color (though it can come in other colors) and is primarily used in more heavyâduty. applications like industrial and institutional settings.
PVCs are best for WAN links that carry steady, high volumes of network traffic. They are commonly used in leased lines for point-to-point WAN links between two networks. The term permanent virtual circuit is also used in frame relay networking. This type of circuit is configured in a similar fashion to those used in leased line connections.