EN ISO 15788-2:2004
Current
The latest, up-to-date edition.
Animal and vegetable fats and oils - Determination of stigmastadienes in vegetable oils - Part 2: Method using high-performance liquid chromatography (HPLC) (ISO 15788-2:2003)
17-11-2004
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
8.1 General
8.2 External standard method
8.3 Internal standard method
9 Procedure
9.1 High-pressure liquid chromatography (HPLC)
9.2 Identification of steradienes
10 Expression of results
10.1 External standard
10.2 Internal standard
11 Precision
11.1 Interlaboratory test
11.2 Repeatability
11.3 Reproducibility
12 Test report
Annex A (informative) Results of interlaboratory test
Annex B (informative) Examples of chromatograms
Bibliography
ISO 15788-2:2003 specifies a method for the determination of steradienes, especially stigmastadienes. Steradienes are formed by dehydration of sterols during bleaching and also partially during steam washing and deodorization. The method is also suitable as a screening method to detect the presence of refined vegetable oils in virgin oils such as virgin olive oil.
| Committee |
CEN/TC 307
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN ISO 15788-2:2005-02 | Identical |
| PN EN ISO 15788-2 : OCT 2005 | Identical |
| NF EN ISO 15788-2 : 2005 | Identical |
| I.S. EN ISO 15788-2:2005 | Identical |
| UNI EN ISO 15788-2 : 2005 | Identical |
| NBN EN ISO 15788-2 : 2005 | Identical |
| SS-EN ISO 15788-2:2006 | Identical |
| SN EN ISO 15788-2 : 2005 | Identical |
| ISO 15788-2:2003 | Identical |
| NEN EN ISO 15788-2 : 2004 | Identical |
| UNE-EN ISO 15788-2:2005 | Identical |
| NS EN ISO 15788-2 : 1ED 2006 | Identical |
| BS EN ISO 15788-2:2004 | Identical |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| ISO 5555:2001 | Animal and vegetable fats and oils — Sampling |
| ISO 12228:1999 | Animal and vegetable fats and oils Determination of individual and total sterols contents Gas chromatographic method |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.