pulmonary tuberculosis is the most common form of tuberculosis bacteria that cause tuberculosis could also spread from the lungs to other parts of the body through blood or the lymph fluid an active tb disease of the lungs airways or larynx is considered to be highly contagious
Before extrusion, the HDPE can be pigmented to yield color-coded pipe. Common PEX tubing colors are natural (hazy clear, unpigmented), white, black, red and blue. The red and blue colors are used to help plumbers and homeowners distinguish between hot and cold water supply lines.
1/2, 3/4 and 1 PEX pipes sizes are the most common for residential and light commercial installations. The end use or application ultimately determines which size pipe to use, with most common being: The size of Plumbing PEX is usually determined by the end use, or end application, with most common being: 1/2 PEX plumbing tubing is the most common of all sizes and is typically used in conjunction with PEX plumbing manifolds to carry hot or cold water to plumbing fixtures.