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ISO 3771:2011

Petroleum products — Determination of base number — Perchloric acid potentiometric titration method
5. 9. 2011.

Опште информације

90.93     26. 9. 2022.

ISO

ISO/TC 28

Međunarodni standard

75.080  

engleski   francuski   ruski  

Kupovina

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Apstrakt

ISO 3771:2011 specifies a method for the determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid.
The constituents that can be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (e.g. soaps), basic salts of polyacid bases, and salts of heavy metals.
The ranges of base number values for which precision values for the method have been established are:

unused oils: base numbers from 3 to 45;
additive concentrates: base numbers from 5 to 45;
used oils: base numbers from 3 to 30.


Životni ciklus

PRETHODNO

POVUČEN
ISO 3771:1994

TRENUTNO

OBJAVLJEN
ISO 3771:2011
90.93 Odluka o potvrđivanju standarda
26. 9. 2022.

Nacionalna preuzimanja

SRPS ISO 3771:2014  
ISS

Naftni proizvodi — Određivanje baznog broja — Metoda potenciometrijske titracije perhlornom kiselinom

90.93   Odluka o potvrđivanju standarda

B028-1 Saznaj više