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.
Reduce your use of PVC in plastics and other household products. From food packaging and childrenâs toys to shower curtains and building materials, PVC (aka: polyvinyl chloride or vinyl) is all around us. But, from both an environmental and health standpoint, PVC is the most toxic plastic. Hereâs why: Vinyl chloride, the chemical used to make PVC, is a known human carcinogen, according to the World Health Organizationâs International Agency for Research on Cancer (IARC).