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.
ENVIROGUARD pioneered the use of cellular PVC for double-hung and casement windows. Cellular PVC is the no-rot, high energy savings alternative to wood, vinyl and other window and millwork materials.Today this technological breakthrough has become an industry standard, and represents the majority of our customer orders.ellular PVC windows are also made from polyvinyl chloride. However, thru a different type of manufacturing process the components are solid. Cellular PVC is unlike extruded hollow vinyl as it features a foam or cell-structure inside. It can be nailed, sawn and fabricated like wood.