Mannitol (also referred to as mannite or manna sugar) is a white, crystalline solid that looks and tastes sweet like sucrose.It was originally isolated from the secretions of the flowering ash and called manna after its resemblance to the Biblical food.In plants it is used to alleviate osmotic stress.annitol has several industrial uses, but is mainly used to produce tablets of medicine. Its fetal safety is C (FDA pregnancy category: risk not ruled out) in Briggs' Reference Guide to Fetal and Neonatal Risk.
Levels of Measurement. What they are; They are the different ways numbers can be used. NOMINAL LEVEL. Numbers can be used as tags or labels, where the size of the number is arbitrary. Barcodes and social security numbers are two examples. We could use the name of the merchandise or person equally well, but we choose numbers instead.
Levels of measurement. What a scale actually means and what we can do with it depends on what its numbers represent. Numbers can be grouped into 4 types or levels: nominal, ordinal, interval, and ratio. Nominal is the most simple, and ratio the most sophisticated. Each level possesses the characteristics of the preceding level, plus an additional quality. Nominal. Nominal is hardly measurement. It refers to quality more than quantity. A nominal level of measurement is simply a matter of distinguishing by name, e.g., 1 = male, 2 = female. Even though we are using the numbers 1 and 2, they do not denote quantity.