Plates and Sheets As aluminum moves between rolls under pressure, it becomes longer and thinner, thus resulting in Aluminum Plate or sheets. One of the main differences between Aluminum Plate and sheets is that sheet metal is under .249â thick, while plate metal is .250â and above.. Another difference between Aluminum Plate and sheets has to do with the distinct applications for which they are used. Sheets. Sheet is the form of aluminum that is used the most often.
The results of some viral tests (antibody or antigen tests) are reported in titers. A titer is a measure of how much the sample can be diluted before the viral antibodies or antigens can no longer be detected. Depending on the virus, it can take weeks for antibodies to develop after exposure to the virus.
Low titers are not considered positive, but high titers are indicative of high levels of antinuclear antibodies. This type of result is reported as positive. The results of this test used to determine an ANA titer are also described as the type of fluorescent patterns that show up on the cells contained in the blood sample. Specific patterns can indicate specific autoimmune diseases. Lupus and mixed connective tissue disease are associated with a diffuse pattern.