Tolerable Negative Error
Error tolerance decreases as nominal quantity increases, by alternating intervals of a given percent error with intervals of a given amount error: these interpolate between the stair-step decreases in percentage error.
Thus, for instance over the interval 50–100, the tolerable error is 4.5 grams or millilitres (referred to as units in the table below). At the left end of the interval, this is 4.5/50 = 9% error (as with the interval 5–50), while at the right end of the interval, this is 4.5/100 = 4.5% error (as with the interval 100–200). The factor of 2 reduction in percentage tolerable error (9% to 4.5%) corresponds to the size of the interval (50–100).
| Table of tolerable negative errors | |
|---|---|
| Nominal quantity in g or ml |
Tolerable negative error |
| 5–50 | 9% |
| 50–100 | 4.5 units |
| 100–200 | 4.5% |
| 200–300 | 9 units |
| 300–500 | 3% |
| 500–1000 | 15 units |
| 1000–10000 | 1.5% |
When using the table, the values of the tolerable negative errors shown as percentages in the table, calculated in units of weight or volume, shall be rounded up to the nearest one-tenth of a gram or millilitre.
Read more about this topic: Estimated Sign
Famous quotes containing the words tolerable, negative and/or error:
“He was a tough, burly thick-headed gentleman, with a loud voice, a pompous manner, a tolerable command of sentences with no meaning in them, and, in short, every requisite for a very good member indeed.”
—Charles Dickens (1812–1870)
“The negative cautions of science are never popular. If the experimentalist would not commit himself, the social philosopher, the preacher, and the pedagogue tried the harder to give a short- cut answer.”
—Margaret Mead (1901–1978)
“When we do not know the truth of a thing, it is of advantage that there should exist a common error which determines the mind of man.... For the chief malady of man is restless curiosity about things which he cannot understand; and it is not so bad for him to be in error as to be curious to no purpose.”
—Blaise Pascal (1623–1662)