ISO 6618:1997
Petroleum products and lubricants — Determination of acid or base number — Colour-indicator titration method
Petroleum products and lubricants — Determination of acid or base number — Colour-indicator titration method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 6 февраля 1997 г.
- Издание:
- ISO IS 6618 edition 2 version 1
- ICS:
- 75.080
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.
Abstract
Overview
ISO 6618:1997 - "Petroleum products and lubricants - Determination of acid or base number - Colour‑indicator titration method" specifies a colour‑indicator titration procedure for measuring and of petroleum products and lubricants. The method applies to samples soluble in a solvent mixture of (with a small water content) and is suitable for acids/bases with very low dissociation constants. Results are reported in mg KOH/g sample and include an optional determination by aqueous extraction.
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