It comes pre-mixed in 1-gallon pails, so the color and consistency is perfect every time. Coverage with a Â¼ grout line is approximately 50 sq. ft. for a 12 x12 application. See chart for additional information regarding grout coverage per gallon.
In brief: 48 to 72 hours. The actual placement of the TB skin test (PPD) only takes a few seconds and should be painless. However you need to return to the clinic to have the skin test read by someone who knows what they are looking for between 48 and 72 hours later. In brief: 48 to 72 hours.
The TB Skin Test (Mantoux) - page 2 5/2004 Tuberculosis (TB) Prevention and Control Program P.O. Box 64975 St. Paul, MN 55164-0975 651-201-5414 www.health.state.mn.us/tb page 2 of 2 What if my TB skin test is negative? The test is ânegativeâ if there is no bump (or only a very small bump) at the spot where the fluid was injected.