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The Trauzl lead block test, also called the Trauzl test, or just Trauzl, is a test used to measure the strength of explosive materials. It was developed by Isidor Trauzl in 1885. The test is performed by loading a 10-gram foil-wrapped sample of the explosive into a hole drilled into a lead block with specific dimensions and properties (a soft ...
003747. A nasopharyngeal swab is a device used for collecting a sample of nasal secretions from the back of the nose and throat. [ 1 ][ 2 ] The sample is then analyzed for the presence of organisms or other clinical markers for disease. This diagnostic method is commonly used in suspected cases of whooping cough, diphtheria, influenza, and ...
Lead occurs naturally, though how it ends up in the food supply is complicated. In a globalized economy, the U.S. often imports foods, particularly spices. Those items can be sourced from ...
Blood lead level. Blood lead level (BLL), is a measure of the amount of lead in the blood. [1][2] Lead is a toxic heavy metal and can cause neurological damage, especially among children, at any detectable level. High lead levels cause decreased vitamin D and haemoglobin synthesis as well as anemia, acute central nervous system disorders, and ...
Drug test. MeSH. D015813. A drug test (also often toxicology screen or tox screen) is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva —to determine the presence or absence of specified parent drugs or their metabolites. Major applications of drug testing include detection of ...