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.
PVC stands for Polyvinyl Chloride. What is interesting is that the Chloride makes up more than half the finished weight of PVC which is what makes the final window resistant to fire.The modern starting materials for the manufacture of PVC are oil and salt. Both of these are products of nature.hat is interesting is that the Chloride makes up more than half the finished weight of PVC which is what makes the final window resistant to fire. The modern starting materials for the manufacture of PVC are oil and salt. Both of these are products of nature.