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.
Polyvinyl chloride (PVC) pipe is made from a plastic and vinyl combination material. The pipes are durable, hard to damage, and long lasting. They do not rust, rot, or wear over time.For that reason, PVC piping is most commonly used in water systems, underground wiring, and sewer lines.q33: PVC is made using chlorine gases and is usually pretty stable after production. Pipe that is manufactured for the purpose of waste water transfer should not be used to hold drinking water, or allow the polymer to break down through sanding or heat being applied.