The estimated sign (℮) is a mark required to be appended to the nominal mass or volume printed on prepackaged goods for sale within the European Union. It certifies that the actual contents of the package comply with specified criteria for estimation: Image File history File links Estimated_sign. ... Image File history File links Estimated_sign. ... Image File history File links Estimated_sign_detail. ... Image File history File links Estimated_sign_detail. ... Estimation is approximate or uncertain calculation of a result, often based on approximate, uncertain, incomplete, or noisy inputs. ...
the average quantity of product in a batch of prepackages shall not be less than the nominal quantity stated on the label
the proportion of prepackages having a negative error greater than the tolerable negative error shall be sufficiently small for batches of prepackages to satisfy the requirements of the official reference test as tests specified in legislation;
no prepackage having a negative error greater than twice the tolerable negative error may bear the estimated sign
The tolerable negative error is related to the nominal quantity and varies between 9% on prepackages nominally 50 g or ml or less, to 1.5% on packages nominally 1 kg or l or more. In mathematics, an average or central tendency of a set (list) of data refers to a measure of the middle of the data set. ... BIC pen cap, about 1 gram. ... The millilitre is the equivalent of a cubic centimetre. ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ... The litre or liter (U.S. spelling, see spelling differences) is a unit of volume. ...
The "estimated" sign looks like a minuscule "e", and its shape is precisely defined by an EU directive. This sign has been added to the Unicode list of characters, just as the symbol for the Euro has been, and can be considered a new basic character in a typeface. It is character U+212E (℮). Because of technical limitations, some web browsers may not display some special characters in this article. ... To meet Wikipedias quality standards, this article may require cleanup. ... This article or section does not cite its references or sources. ...
Table of tolerable negative errors
Nominal quantity in g or ml
Tolerable negative error
5-50
9%
50-100
4.5 g/ml
100-200
4.5%
200-300
9 g/ml
300-500
3%
500-1000
15 g/ml
1000-10000
1.5%
External links
References with typographic specifications
Evertype article
Council Directive 71/316/EEC
Use of the sign
Council Directive of 20 January 1976 [PDF file] on the approximation of the laws of the Member States relating to the making-up by weight or by volume of certain prepackaged products
Nederlands Meetinstituut [NMi]
WELMEC Working Group 6 on e-marked prepackages [WELMEC WG6]
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