Published
Specifies a colour-indicator titration method for the determination of acidic or basic constituents in petroleum products and lubricants soluble in mixtures of toluene and propan-2-ol. It is applicable for the determination of acids or bases having extremly low dissociation constants. Replaces the first edition.
WITHDRAWN
ISO 6618:1987
PUBLISHED
ISO 6618:1997
90.93
Standard confirmed
Oct 18, 2023
PUBLISHED
ISO 6618:1997/Cor 1:1999
Petroleum products and lubricants — Determination of acid or base number — Colour-indicator titration method
90.93 Standard confirmed