BS ISO 17780:2015
Current
The latest, up-to-date edition.
Animal and vegetable fats and oils. Determination of aliphatic hydrocarbons in vegetable oils
Hardcopy , PDF
English
31-08-2015
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of the test sample
9 Procedure
10 Determination of hydrocarbons attributed to
mineral origin
11 Precision
12 Test report
Annex A (informative) - Examples of chromatograms
Annex B (informative) - Validation of silver nitrate
impregnated silica gel purification
Annex C (informative) - Procedure for rapid method
Annex D (informative) - Fat extraction from food sample
Annex E (informative) - Results of interlaboratory trials
Bibliography
Defines a method for the determination of saturated aliphatic hydrocarbons from C10 to C56 of natural origin present in vegetable oils, and for detecting the presence of mineral oil and diesel oil.
| Committee |
AW/307
|
| DevelopmentNote |
Supersedes 14/30270453 DC. (08/2015)
|
| DocumentType |
Standard
|
| Pages |
40
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a method for the determination of saturated aliphatic hydrocarbons from C10 to C56 of natural origin present in vegetable oils, and for detecting the presence of mineral oil and diesel oil.
The method is applicable to all types of crude and refined edible oils and fats, for concentrations of mineral oils from 50 mg/kg to 1 000 mg/kg.
A rapid method for refined and virgin (or cold-pressed) oils is proposed in Annex C. This rapid method is not adapted for crude oils due to a lack of retention of triglycerides observed for some samples.
A method for fat recovery from food samples by soxhlet extraction with a blend of solvents is proposed in Annex D.
| Standards | Relationship |
| ISO 17780:2015 | 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 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 661:2003 | Animal and vegetable fats and oils — Preparation of test sample |
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