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ISO 6618:1997

Petroleum products and lubricants -- Determination of acid or base number -- Colour-indicator titration method

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.

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International Organization for Standardization [iso]

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