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.
No, CPVC and Schedule 80 PVC are different. Schedule 80 just refers to the thickness of the PVC pipe, and you can have schedule 80 CPVC as well. CPVC differs from PVC in chemical makeup and in how it should be used.For instance, CPVC can withstand temperatures of up to 200 degrees F while PVC is best used for temperatures below about 140F.Hope that helps!efore purchasing CPVC be aware of what your use will be, and what sizing system you require. Color can be a clue, too. Often CTS CPVC is an off-white or yellowish color, while schedule 80 CPVC (NPS) is a light gray color. PVC pipe and fittings usually comes in white or dark gray.