STN EN ISO 20122
| Označenie: | STN EN ISO 20122 |
| Platnosť: | Platná |
| Počet strán: | 52 |
| Jazyk: |
EN
|
| Listinná verzia: | 21,40€ |
| Elektronická verzia: |
a) Bez možnosti tlače, prenosu textu a obrázkov:
19,26€ b) Bez možnosti tlače, s prenosom textu a obrázkov: 21,40€ c) S možnosťou tlače, prenosu textu a obrázkov: 27,82€ |
| Slovenský názov: | Rastlinné oleje. Stanovenie nasýtených uhľovodíkov minerálnych olejov (MOSH) a aromatických uhľovodíkov minerálnych olejov (MOAH) on-line analýzou vysokoúčinnou kvapalinovou chromatografiou-plynovou chromatografiou s plameňovoionizačnou detekciou (HPLC-GC-FID). Metóda na kvantifikáciu dolného limitu (ISO 20122: 2024, opravená verzia 2024-11) |
| Anglický názov: | Vegetable oils - Determination of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH) with online-coupled high performance liquid chromatography-gas chromatography-flame ionization detection (HPLC-GC-FID) analysis - Method for low limit of quantification (ISO 20122:2024, Corrected version 2024-11) |
| Dátum vydania: | 01. 02. 2025 |
| Dátum zrušenia: | |
| ICS: | 67.200.10 |
| Triediaci znak: | 58 8798 |
| Úroveň zapracovania: | idt EN ISO 20122:2024, idt ISO 20122 Corrected version 2024-11:2024 |
| Vestník: | 01/25 |
| Zmeny: | |
| Nahradzujúce normy: | |
| Nahradené normy: | STN EN ISO 20122:2024-08 (58 8798) |
| Poznámka vo Vestníku: | |
| Predmet normy: | This document specifies a procedure for the determination of saturated and aromatic hydrocarbons (from C10 to C50) in vegetable fats and oils using the online-coupled high performance liquid chromatography-gas chromatography-flame ionization detection (HPLC-GC-FID). This document does not apply to other matrices. The method is applicable for the analysis of mineral oil saturated hydrocarbons (MOSH) and/or mineral oil aromatic hydrocarbons (MOAH). According to the results of the interlaboratory studies, the method has been proven suitable for MOSH mass concentrations above 3 mg/kg and MOAH mass concentrations above 2 mg/kg. In case of suspected interferences, the fossil origin of the MOSH and MOAH fraction can be verified by examination by GC?GC-MS. An alternative method for the epoxidation of the MOAH fraction (performic acid epoxidation) is proposed in Annex C. This alternative method provides comparable results to the ethanolic epoxidation of the MOAH fraction described in 8.6. This alternative ... |
| Náhľad normy: | Náhľad normy (PDF) |