EN 15470:2017

Liquefied petroleum gases - Determination of dissolved residues - High temperature Gas chromatographic method

This European Standard specifies a method for determining the dissolved residual matter in liquefied petroleum gases (LPG), in the range of 40 mg/kg to 100 mg/kg. Higher concentrations can be determined by adjusting the sample size.
The dissolved residue is the amount of organic compounds that are detectable by gas chromatography after evaporation of the sample at ambient temperature and then in an oven at 105 °C.
This method is not suitable for detecting solid materials or for possibly high molar mass polymers (>1 000 g/mol).
From the analysis of a limited LPG sample size (50 g to 75 g) this method allows obtaining information on the potential origin of the residue (gasoil, lubricants, plasticizers, etc.).
The precision data of the method have been determined from 20 mg/kg to 100 mg/kg. For a higher content of residue, the precision has not been tested.
NOTE   An alternative European Standard, EN 1547113[1], specifies a gravimetric method.
WARNING - The use of this Standard can involve hazardous materials, operations and equipment. This Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.

Flüssiggas - Bestimmung der gelösten Rückstände - Hochtemperatur-Gaschromatographie-Verfahren

Diese Europäische Norm legt ein Verfahren zur Bestimmung der gelösten Rückstände in Flüssiggas (LPG) im Bereich von 40 mg/kg bis 100 mg/kg fest. Höhere Konzentrationen können durch Anpassung der Probenmenge bestimmt werden.
Der gelöste Rückstand ist die Menge organischer Verbindungen, die nach Verdampfung der Probe bei Umgebungstemperatur und anschließend bei 105 °C in einem Trockenschrank mittels Gaschromatographie nachweisbar sind.
Das Verfahren ist nicht geeignet zur Nachweisbarkeit fester Stoffe oder möglicherweise vorhandener Polymere mit hoher molarer Masse (> 1 000 g/mol).
Durch die Analyse einer begrenzten LPG Probenmenge von 50 g bis 75 g ermöglicht dieses Verfahren Informationen bezüglich der potentiellen Herkunft der Rückstände (Gasöl, Schmierstoffe, Weichmacher usw.) zu erhalten.
Die Präzisionsangaben des Verfahrens wurden für den Bereich von 20 mg/kg bis 100 mg/kg bestimmt. Für höhere Gehalte an Rückständen wurde die Präzision nicht untersucht.
ANMERKUNG   Eine alternative Europäische Norm EN 15471 [1] beschreibt ein gravimetrisches Verfahren.
WARNUNG - Die Anwendung dieser Norm kann die Anwendung gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Diese Norm beansprucht nicht, alle damit verbundenen Sicherheits¬probleme zu behandeln. Es liegt in der Verantwortung des Anwenders dieser Norm, vor ihrer Anwendung geeignete Maßnahmen für die Sicherheit und den Gesundheitsschutz des Personals zu ergreifen, und dafür Sorge zu tragen, dass behördliche und gesetzliche Maßnahmen eingehalten werden.

Gaz de pétrole liquéfié - Détermination des résidus dissous - Méthode par chromatographie en phase gazeuse, à haute température

Utekočinjeni naftni plini - Določevanje raztopljenih ostankov - Metoda plinske kromatografije z visoko temperaturo

Revizija preskusne metode za obravnavo varnostnih težav in posodobitev na trenutno najsodobnejše tehnike.
Ta evropski standard določa metodo za določevanje raztopljenih ostankov snovi v utekočinjenih naftnih plinih (LPG) v razponu 40–100 mg/kg. Višje koncentracije je mogoče določiti s prilagajanjem velikosti vzorca.
Raztopljeni ostanki so količina organskih zmesi, ki jih je mogoče zaznati s plinsko kromatografijo po tem, ko vzorec izhlapeva pri temperaturi okolice in nato v peči pri 105 °C.
Ta metoda ni primerna za zaznavanje trdnih materialov ali za polimere z morebitno visoko molekulsko maso
(> 1000 g).
Prednost te metode je v tem, da je potrebna majhna količina utekočinjenega naftnega plina (50–75 g), razpoložljivi kvalitativni podatki pa lahko kažejo na izvor ostankov (plinsko olje, maziva, mehčala itd.).
Ta metoda je bila razvita kot možna zamenjava običajno uporabljene metode, ki je opisana v standardu EN ISO 13757 [1], vendar je varnejša in okolju prijaznejša. Poleg tega je ta nova metoda natančnejša.
Podatki o natančnosti metode so določeni 20–100 mg/kg. Natančnost ni bila preskušena pri večji vsebnosti ostankov, vendar ni tako pomembna, ker so tipične specifikacije v razponu od 20–100 mg/kg.

General Information

• Status: Published
• Publication Date: 04-Jul-2017
• Withdrawal Date: 30-Jan-2018
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: CEN/TC 19 - Petroleum products, lubricants and related products
• Drafting Committee: CEN/TC 19/WG 23 - Specification of automotive LPG and related test method
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 17-Mar-2023
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 15470:2017 - Liquefied petroleum gases - Determination of dissolved residues - High temperature Gas chromatographic method

Relations

• Replaces: EN 15470:2007 - Liquefied petroleum gases - Determination of dissolved residues - High temperature Gas chromatographic method
• Effective Date: 18-Feb-2015

Overview

EN 15470:2017 - Liquefied petroleum gases (LPG) - specifies a high temperature gas chromatographic method for the determination of dissolved residues in LPG. The method quantifies organic residues detectable by gas chromatography after controlled evaporation (ambient then oven at 105 °C) and is validated for the range 40 mg/kg to 100 mg/kg (precision data determined from 20 mg/kg to 100 mg/kg). Higher residue concentrations can be measured by adjusting sample size. The method is not suitable for solids or very high molar mass polymers (>1 000 g/mol).

Key topics and technical requirements

• Sample size and sampling: typical LPG test sample 50 g to 75 g; sampling in accordance with EN ISO 4257.
• Evaporation procedure: controlled evaporation at ambient temperature followed by heating in an oven at 105 °C for 1 hour to remove volatile LPG and concentrate dissolved residues.
• Extraction and internal standard: residue is dissolved in solvent (carbon disulfide, CS2) and quantified using an internal standard (normal octane / n‑C8).
• Gas chromatography: capillary GC with high‑temperature column (suggested HT5 type programmable to 400 °C) and FID detection; integration covers peaks from n‑C8 to end of run.
• Quantification and calculation: internal standard method used to calculate evaporation residue (ER) expressed in mg/kg; blank checks and baseline stability required.
• Precision: repeatability and reproducibility established from inter-laboratory studies for residues between 20–100 mg/kg.
• Safety: work in explosion‑proof hood, control of static electricity, safe handling of volatile and hazardous reagents (CS2), adherence to statutory safety regulations.

Practical applications and users

• Quality control laboratories testing LPG batches for contamination or compliance.
• LPG producers and distributors monitoring dissolved residues that may indicate contamination with gasoil, lubricants, plasticizers or other sources.
• Regulatory bodies and certification labs performing standardized checks for fuel specifications.
• Automotive and appliance fuel testing where trace organic residues can affect performance or safety.
• Forensic or failure‑analysis teams seeking to identify potential origin of residues from small sample sizes.

Benefits: provides a repeatable, GC‑based analytical route for identifying and quantifying organic contamination in LPG and offers diagnostic insight into residue origin (e.g., lubricants or fuel oils).

Related standards

• EN 15471 - alternative gravimetric method for evaporation residues.
• EN ISO 4257 - LPG sampling method referenced by EN 15470 for correct sample collection.

Keywords: EN 15470:2017, LPG, liquefied petroleum gases, dissolved residues, high temperature gas chromatographic method, gas chromatography, internal standard, evaporation residue, residue mg/kg, fuel quality testing.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flüssiggas - Bestimmung der gelösten Rückstände - Hochtemperatur-Gaschromatographie-VerfahrenGaz de pétrole liquéfié - Détermination des résidus dissous - Méthode par chromatographie en phase gazeuse, à haute températureLiquefied petroleum gases - Determination of dissolved residues - High temperature Gas chromatographic method75.160.30Plinska gorivaGaseous fuels71.040.50Fizikalnokemijske analitske metodePhysicochemical methods of analysisICS:Ta slovenski standard je istoveten z:EN 15470:2017SIST EN 15470:2017en,fr,de01-oktober-2017SIST EN 15470:2017SLOVENSKI
STANDARDSIST EN 15470:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15470
July
t r s y ICS
y wä s x rä t r Supersedes EN
s w v y rã t r r yEnglish Version
Liquefied petroleum gases æ Determination of dissolved residues æ High temperature Gas chromatographic methodGaz de pétrole liquéfié æ Détermination des résidus dissous æ Méthode par chromatographie en phase gazeuseá à haute température
Flüssiggas æ Bestimmung der gelösten Rückstände æ HochtemperaturæGaschromatographieæVerfahren This European Standard was approved by CEN on
t v April
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s w v y rã t r s y ESIST EN 15470:2017

Equipment for sample transfer and evaporation . 10 A.1 Sampling set . 10 A.2 Venting lines . 10 Annex B (informative)
Examples of gas chromatograms . 12 Bibliography . 14
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