SIST EN 15471:2017

Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method

This European Standard specifies a method for determining the dissolved residual matter in liquefied petroleum gases (LPG), which remains after evaporation at 105 °C using the jet evaporation equipment described in EN ISO 6246.
The measurement range is from 20 mg/kg to 100 mg/kg. Higher concentrations can be determined by adjusting the sample size.
The precision data of the method have been determined from 20 mg/kg to 100 mg/kg, with samples amount from 100 g to 50 g.
NOTE   An alternative European Standard, EN 15470 [1], specifies a gas chromatography 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 - Gravimetrisches Hochtemperaturverfahren

Diese Europäische Norm legt ein Verfahren zur Bestimmung des gelösten Rückstands in Flüssiggas (LPG) fest, der nach der Verdampfung bei 105 °C unter Verwendung des Aufblaseverfahrens nach EN ISO 6246 zurück bleibt.
Der Messbereich reicht von 20 mg/kg bis 100 mg/kg. Höhere Konzentrationen können durch Anpassung der Probenmenge bestimmt werden.
Die Präzisionsdaten des Verfahrens wurden für den Bereich von 20 mg/kg bis 100 mg/kg, mit Probenmengen von 100 g bis 50 g, bestimmt.
ANMERKUNG   Eine alternative Europäische Norm, EN 15470 [1], beschreibt ein gaschromatographisches Verfahren.
WARNUNG - Die Anwendung dieser Norm kann die Anwendung gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Diese Norm beansprucht nicht, alle damit verbundenen Sicherheitsprobleme 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 gravimétrique à haute température

La présente norme européenne spécifie une méthode de détermination des matières résiduelles dissoutes dans le gaz de pétrole liquéfié (GPL) qui subsistent après évaporation à 105 °C avec l’équipement d’évaporation au jet décrit dans l’EN ISO 6246.
L’intervalle de mesure s’étend sur la plage de 20 mg/kg à 100 mg/kg. Des concentrations plus élevées peuvent être mesurées en ajustant la taille de l’échantillon.
Les valeurs de fidélité de cette méthode ont été fixées dans un intervalle de concentration compris entre 20 mg/kg et 100 mg/kg avec des échantillons de 100 g à 50 g.
NOTE   La norme EN 15470 [1] présente une méthode par chromatographie en phase gazeuse.
AVERTISSEMENT - L'utilisation de la présente Norme peut impliquer l'intervention de produits, d'opérations et d'équipements à caractère dangereux. La présente Norme n'est pas censée aborder tous les problèmes de sécurité concernés par son usage. Il est de la responsabilité des utilisateurs de cette norme de prendre les mesures appropriées pour assurer la sécurité et préserver la santé du personnel avant son application, et pour répondre aux exigences réglementaires et statutaires à cette fin.

Utekočinjeni naftni plini - Določevanje raztopljenih ostankov - Visokotemperaturna gravimetrijska metoda

Ta standard določa metodo za določevanje ostankov snovi v utekočinjenih naftnih plinih (LPG), ki ostanejo po izhlapevanju pri 105 °C. Ta material predstavlja tiste izdelke, ki so naneseni na avtomobilske uparjalnike utekočinjenih naftnih plinov, ki so izpostavljeni temperaturi, enaki ali večji od temperature vrelišča vode. Razpon določanja je 50–100 mg/kg. Višje koncentracije je mogoče določiti s prilagajanjem velikosti vzorca.
Podatki o natančnosti metode so določeni 20–100 mg/kg pri količini vzorca 100–50 g.
Ta metoda je bila razvita kot možna zamenjava običajno uporabljene metode, ki je opisana v standardu EN ISO 13757 [1]. Prednost te metode je v tem, da je potrebna majhna količina (100 ml) utekočinjenega naftnega plina.

General Information

• Status: Published
• Public Enquiry End Date: 03-Jan-2016
• Publication Date: 06-Sep-2017
• ICS: 75.160.30 - Gaseous fuels
• Technical Committee: NAD - Petroleum products, lubricants and related products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Aug-2017
• Due Date: 04-Nov-2017
• Completion Date: 07-Sep-2017
• Ref Project: EN 15471:2017 - Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method

Relations

• Replaces: SIST EN 15471:2008 - Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method
• Effective Date: 01-Oct-2017

Overview

SIST EN 15471:2017 is a European Standard developed by CEN that specifies a high-temperature gravimetric method for determining dissolved residues in liquefied petroleum gases (LPG). This method is designed to measure the amount of dissolved residual matter remaining after evaporation of LPG samples at 105 °C using jet evaporation equipment conforming to EN ISO 6246. The standard provides a reliable and precise approach to quantifying residues in LPG, essential for quality control and compliance within the petroleum and gaseous fuels industry.

The measurement range covers dissolved residues from 20 mg/kg to 100 mg/kg, with the flexibility to analyze higher concentrations by adjusting sample size. SIST EN 15471:2017 supersedes the 2007 version, incorporating technical updates and clarifications to enhance testing accuracy and operational safety.

Key Topics

• Scope: Specifies the gravimetric method utilizing jet evaporation for evaporating LPG samples and quantifying dissolved residues.
• Sampling: Based on EN ISO 4257, LPG sampling ensures representative and contamination-free test materials.
• Apparatus: Includes specialized stainless steel sample cylinders, in-line filters, cooling baths with solid carbon dioxide, and precision balances, compliant with EN ISO 6246.
• Procedure:
  • Sampling and purging to ensure clean LPG sample collection.
  • Evaporation of LPG sample at controlled temperature (105 °C).
  • Jet evaporation to dry the residue using filtered air flow.
  • Weighing the oily residue with an analytical balance to the nearest 0.1 mg.
• Precision: Documented repeatability and reproducibility data determined through interlaboratory testing. Repeatability (r) and reproducibility (R) values vary depending on residue concentration, with statistical models provided for quality assurance.
• Safety: Highlights the need for proper safety protocols due to hazardous materials and equipment involved, emphasizing user responsibility to ensure safe application and compliance with regulations.
• Complementary Methods: Notes EN 15470 as an alternative standard using gas chromatography for determining dissolved residues.

Applications

SIST EN 15471:2017 is particularly valuable for:

• Quality control laboratories testing LPG to verify conformity with product specifications.
• Fuel suppliers and distributors monitoring the purity and stability of LPG batches.
• Manufacturers of LPG appliances and equipment ensuring fuel quality to prevent operational issues caused by residue deposits.
• Regulatory authorities and inspection bodies assessing LPG for safety and environmental standards compliance.
• Research and development focusing on refining LPG processing and improving fuel formulations.

By applying this standardized gravimetric test method, stakeholders can quantitatively assess dissolved residues, contributing to safer handling, improved combustion performance, and extended equipment lifespan.

Related Standards

• EN ISO 6246: Petroleum products – Jet evaporation method for gum content, referenced for apparatus requirements.
• EN ISO 4257: Sampling of liquefied petroleum gases, foundational for LPG sample collection under this method.
• EN 15470: An alternative European Standard specifying a gas chromatography method for dissolved residue determination in LPG.
• EN ISO 4259: Petroleum products – Precision data determination and application, used to evaluate method precision.
• National and international regulations governing the handling and testing of LPG and related hazardous materials.

Summary

The SIST EN 15471:2017 standard offers a robust, precise, and widely accepted method for determining dissolved residual matter in LPG using a high-temperature gravimetric technique. It supports quality assurance, regulatory compliance, and safety management in LPG production, supply, and usage. Laboratories and industry professionals benefit from its clear procedural instructions, defined apparatus specifications, and detailed precision data, enabling accurate measurement of impurities that impact LPG performance and safety. Complementing gas chromatography methods, EN 15471 enhances analytical versatility for regulators and industrial users worldwide.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LVRNRWHPSHUDWXUQDFlüssiggas - Bestimmung der gelösten Rückstände - Gravimetrisches HochtemperaturverfahrenGaz de pétrole liquéfié - Détermination des résidus dissous - Méthode gravimétrique à haute températureLiquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method75.160.30Plinska gorivaGaseous fuelsICS:Ta slovenski standard je istoveten z:EN 15471:2017SIST EN 15471:2017en,fr,de01-oktober-2017SIST EN 15471:2017SLOVENSKI
STANDARDSIST EN 15471:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15471
July
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s w v y sã t r r yEnglish Version
Liquefied petroleum gases æ Determination of dissolved residues æ Highætemperature gravimetric method Gaz de pétrole liquéfié æ Détermination des résidus dissous æ Méthode gravimétrique à haute température Flüssiggas æ Bestimmung der gelösten Rückstände æ Gravimetrisches Hochtemperaturverfahren This European Standard was approved by CEN on
t v April
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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
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s w v y sã t r s y ESIST EN 15471:2017
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