EN 12634:1998
Current
The latest, up-to-date edition.
Petroleum products and lubricants - Determination of acid number - Non-aqueous potentiometric titration method
21-10-1998
Foreword
1 Scope
2 Normative references
3 Definition
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Sample preparation for used oils
9 Apparatus preparation
10 Procedure
11 Calculation
12 Expression of results
13 Precision
14 Test report
Annex A (normative) Procedure for the standardization
of TMAH standard solution
Annex B (normative) Electrode preparation, maintenance
and storage and electrode system quality assurance
Annex C (informative) Bibliography
This European Standard specifies a method for determination of acid number by potentiometric titration, of lubricating oils and additives soluble in mixtures of propan-2-ol, dimethylsulfoxide and toluene. It is applicable in the range 0,1 mg KOH/g to 250 mg KOH/g, and to unused and used lubricating oils and additives.
| Committee |
CEN/TC 19
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| NBN EN 12634 : 1998 | Identical |
| NEN EN 12634 : 1998 | Identical |
| BS EN 12634:1998 | Identical |
| BS 2000-449(1999) : 1999 | Identical |
| SN EN 12634 : 1999 | Identical |
| NF EN 12634 : 1998 | Identical |
| UNE-EN 12634:1999 | Identical |
| UNI EN 12634 : 2001 | Identical |
| NS EN 12634 : 1ED 1999 | Identical |
| DIN EN 12634:1999-02 | Identical |
| PN EN 12634 : 2002 | Identical |
| I.S. EN 12634:1999 | Identical |
| IP 449 : 2000 | Identical |
| CEN/TR 15160:2005 | Petroleum and related products - Applicability of diesel fuel test methods for Fatty Acid Methyl Esters (FAME) - Information and results on round robin tests |
| I.S. CEN/TR 15160:2005 | PETROLEUM AND RELATED PRODUCTS - APPLICABILITY OF DIESEL FUEL TEST METHODS FOR FATTY ACID METHYL ESTERS (FAME) - INFORMATION AND RESULTS ON ROUND ROBIN TESTS |
| PD CEN/TR 15160:2005 | Petroleum and related products. Applicability of diesel fuel test methods for fatty acid methyl esters (FAME). Information and results on round robin tests |
| ISO 3171:1988 | Petroleum liquids — Automatic pipeline sampling |
| ISO 3170:2004 | Petroleum liquids — Manual sampling |
| ISO 3819:2015 | Laboratory glassware — Beakers |
| ISO 385-1:1984 | Laboratory glassware — Burettes — Part 1: General requirements |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| EN ISO 3696:1995 | Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) |
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