nephelometer

Lemma

nephelometer

Etichetta di dominio

EN

Etichetta grammaticale

n.

Definizione

An instrument for determining the concentration or particle size of suspensions by means of transmitted or reflected light. 1

Nota

Turbidity is used as a means of assessing the particulate level in a wine (visual clarity), and from this its suitability for bottling is determined. There are many potential suspended components in a liquid, such as silt, yeast, bacteria, amorphous and crystalline materials that cause turbidity. A nephelometer (turbidity meter) measures the extent to which light is scattered by any suspended particulate in the sample. This method of analysis is used when bottling wine as a means of estimating how the suspended material may block filtration media, but it does have some severe limitations. 2

Contesto

[...] And even a nephelometer should be given some time to stabilize before recording the reading (bubbles rise, large particles sink). This is particularly important when dealing with low nephelometric values. 3

Trascrizione fonetica

[ˌnɛfəˈlɒmɪtər ] 4

Sinonimi e Antonimi
ND
Abbreviazioni
ND
Etimologia

From Greek nephelē, ‘cloud’ + -metron, ‘a measure’. 1 5

Etichetta di paese

EN

Ente

Università degli Studi di Genova, Facoltà di Lingue e Letterature Straniere, Corso di Laurea in Teorie e Tecniche della Mediazione Interlinguistica.

Data della scheda
Wed Jul 2 01:47:22 2014
Autore

Marco Inferrera

Fonti

1 : http://www.merriam-webster.com/dictionary/nephelometer (08/06/2014)

2 : http://bhftechnologies.com.au/wp-content/uploads/2013/08/Article-Turbidity-Versus-Filterability-as-a-Means-of-Evaluating-Impact-of-Wine-on-Filtration-Media.pdf (19/06/2014)

3 : http://wineserver.ucdavis.edu/pdf/attachment/88 stability tests and haze formation .pdf (09/06/2014)

4 : http://dictionary.reference.com/browse/nephelometer (10/06/2014)

5 : American Heritage® Dictionary of the English Language, Fourth Edition http://www.ahdictionary.com/word/search.html?q=nephelometer&submit.x=-784&submit.y=-210 (19/06/2014)

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