en

buffer

1

Terminological databases

EKI terminibaas Esterm

ID 704266 Last modified 06.06.2014
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Domain chemical methods
puhverlahus preferred
puhversegu
buffer preferred
  • lahus, millel on võime (teatud määral) säilitada oma pH väärtust nii lahjendamisel kui ka väikese koguse tugeva happe või leelise lisamisel
  • nõrk happe või aluse lahus koos vastava soola lisandiga, et lahuse vesinikioonide sisaldus (pH) püsiks reaktsiooni ajal võimalikult muutumatuna
  • a solution that resists change in pH when small amounts of an acid or alkali are added over a certain range or when the solution is diluted
  • a solution to which moderate amounts of either a strong acid or base may be added without causing any large change in the pH value of the solution. Such solutions usually contain (a) a weak acid and a salt of the weak acid, (b) a mixture of an acid salt with the normal salt, or (c) a mixture of two acid salts.
puhverlahus preferred
puhversegu
puhver
buffer preferred
Usage examples
  • In the laboratory, buffers are used to prepare solutions of known stable pH. Natural buffers occur in living organisms, where the biochemical reactions are very sensitive to change in pH. The main natural buffers are H2CO3/HCO3 − and H2PO4 −/HPO42−. Buffer solutions are also used in medicine (e.g. in intravenous injections), in agriculture, and in many industrial processes (e.g. dyeing, fermentation processes, and the food industry).
buffer solution

EKI terminibaas Esterm

ID 725343 Last modified 30.12.2004
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Domain fixed parts & moving parts
  • seadis alumisest tööasendist allapoole liikunud kabiini (vastukaalu) peatamiseks ning peatumisel tekkinud löögi amortiseerimiseks
puhver
Usage examples
  • Erakorraline tehniline kontroll teostatakse järgmistel juhtudel: 1) enne tõsteseadme kasutusele võtmist, kui seda pole kasutatud eelnenud aasta jooksul; ... 7) puhvrite vahetamisel; ...
buffer
Usage examples
  • Buffers must be installed between the bottom of the shaft and the floor of the car. In this case, the free space referred to in Section 2.2 must be measured with the buffers totally compressed.

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