PETROLEUM PRODUCTS AND LUBRICANTS - DETERMINATION OF ACID OR BASE NUMBER - COLOUR-INDICATOR TITRATION METHOD (ISO 6618:1997)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2015

Publisher

German Institute for Standardisation (Deutsches Institut für Normung)

National foreword
National Annex NA (informative) - Bibliography
National Annex NB (informative) - Guidance on using
                  Annex B - Determination of pHr-range
                  of p-naphtholbenzein indicator
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Preparation of used oil sample
8 Determination of acid number
9 Determination of base number
10 Determination of strong acid number
11 Calculation
12 Expression of results
13 Precision
14 Test report
Annex A (normative) - Specification for p-naphtholbenzein
Annex B (normative) - Determination of pHr range of
        p-naphtholbenzein indicator

Defines 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.

DevelopmentNote	Supersedes DIN 51558-1 E. (08/2015)
DocumentType	Standard
Pages	19
PublisherName	German Institute for Standardisation (Deutsches Institut für Normung)
Status	Current
Supersedes	DIN 51558-1:1979-07

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