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.
Schedule 80 PVC is a dark gray and schedule 80 cpvc is gray and is the same color as electrical conduit. When you cut into it if it has a thicker wall thickness then the white pvc then it is probably one of the schedule 80 pipes. Schedule 80 CPVC is used in more of an industrial setting.