SIST EN 15471:2008
(Main)Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method
Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric method
This Standard specifies a method, for determining the residual matter in liquefied petroleum gases (LPG), which remains after evaporation at 105 °C. This material represents those products deposited in car LPG vaporizers that are subject to a temperature equal to or greater than the boiling temperature of water. The range of determination extends from 50 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. This method has been developed as a potential replacement of the commonly used method EN ISO 13757. The advantages of the method are that a small quantity of LPG (100 ml) is required.
Flüssiggas - Bestimmung der gelösten Rückstände - Gravimetrisches Hochtemperaturverfahren
Diese Europäische Norm beschreibt ein Verfahren zur Bestimmung des Rückstandes in Flüssiggas (LPG), der nach der Verdampfung bei 105 °C übrig bleibt. Dieser Rückstand repräsentiert diejenigen Produkte, die sich in Verdampfern absetzen, die einer höheren Wärmeeinwirkung ausgesetzt sind als bei einer Verdampfung bei Umgebungstemperatur.
WARNUNG - Die Anwendung dieser Norm kann den Einsatz gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Diese Norm gibt nicht vor, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme anzusprechen. Der Anwender dieser Norm ist dafür verantwortlich, vorher angemessene Maßnahmen zu ergreifen und die Anwendbarkeit einschränkender Vorschriften zu ermitteln. Alle Arbeiten müssen in einem Abzug durchgeführt werden.
Gaz de pétrole liquéfié - Détermination des résidus dissous - Méthode gravimétrique a haute température
La présente norme spécifie une méthode de détermination des matières résiduelles dans le gaz de pétrole liquéfié (GPL) qui subsistent après évaporation à 105 °C. Ces matières correspondent aux produits déposés dans le vaporisateur GPL des automobiles soumis à une température supérieure ou égale à la température d’ébullition de l’eau. L’intervalle de détermination s’étend de 50 mg/kg à 100 mg/kg. Des concentration plus élevée peuvent être mesurées en ajustant la taille de l’échantillon.
Les valeurs de fidélité de cette méthode ont été fixée dans un intervalle de concentration compris entre 20 mg/kg et 100 mg/kg pour une quantité d’échantillon de 50 g à 100 g.
Cette méthode a été développée pour potentiellement remplacer la méthode EN ISO 13757 [1] utilisée communément. Son avantage est de ne nécessiter qu’une faible quantité de GPL (100 ml).
NOTE La norme EN 15470 2, qui concerne le même domaine d’application, propose une méthode par chromatographie en phase gazeuse dont les valeurs de fidélité sont légèrement meilleures.
AVERTISSEMENT Cette méthode implique des opérations et des matériaux dangereux. Il incombe à l’utilisateur d’établir des règles appropriées de sécurité et de santé. Toute manipulation doit être réalisée sous une hotte fermée.
Utekočinjeni naftni plini – Določevanje raztopljenih ostankov – Visokotemperaturna gravimetrijska metoda
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Liquefied petroleum gases - Determination of dissolved residues - High-temperature gravimetric methodGaz de pétrole liquéfié - Détermination des résidus dissous - Méthode gravimétrique a haute températureFlüssiggas - Bestimmung der gelösten Rückstände - Gravimetrisches HochtemperaturverfahrenTa slovenski standard je istoveten z:EN 15471:2007SIST EN 15471:2008en,de75.160.30Plinska gorivaGaseous fuelsICS:SLOVENSKI
STANDARDSIST EN 15471:200801-januar-2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15471November 2007ICS 75.160.10 English VersionLiquefied petroleum gases - Determination of dissolved residues- High-temperature gravimetric methodGaz de pétrole liquéfiés - Détermination des résidusdissous - Méthode gravimétrique à haute températureFlüssiggas - Bestimmung der gelösten Rückstände -Gravimetrisches HochtemperaturverfahrenThis European Standard was approved by CEN on 7 October 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15471:2007: E
EN 15471:2007 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative reference.4 3 Terms and definitions.4 4 Principle.4 5 Reagents.4 6 Apparatus.5 7 Sampling.6 8 Procedure.6 8.1 Sampling.6 8.2 Evaporation of the LPG.7 8.3 Jet evaporation procedure.7 9 Calculation.8 10 Expression of results.8 11 Precision.8 11.1 General.8 11.2 Repeatability, r.8 11.3 Reproducibility, R.9 Bibliography.10
EN 15471:2007 (E) 3 Foreword This document (EN 15471:2007) has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2008, and conflicting national standards shall be withdrawn at the latest by May 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
EN 15471:2007 (E) 4 1 Scope This Standard specifies a method, for determining the residual matter in liquefied petroleum gases (LPG), which remains after evaporation at 105 °C. This material represents those products deposited in car LPG vaporizers that are subject to a temperature equal to or greater than the boiling temperature of water. The range of determination extends from 50 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. This method has been developed as a potential replacement of the commonly used method EN ISO 13757 [1], The advantages of the method are that a small quantity of LPG (100 ml) is required. NOTE An alternative European Standard, EN 15470 [2], with the same scope, specifies a gas chromatography method with slightly better fidelity.
WARNING — Use of this method involves hazardous materials and operations. It is the responsibility of the user to establish appropriate safety and health precautions. All handling must be performed in a fume hood. 2 Normative reference The following referenced documents are indispensable for the application of this document. For dated references only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 4257, Liquefied petroleum gases - Method of sampling (ISO 4257:2001) 3 Terms and definitions For the purposes of this document, the following t
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.