SIST EN 16896:2017
(Main)Petroleum products and related products - Determination of kinematic viscosity - Method by Stabinger Viscometer
Petroleum products and related products - Determination of kinematic viscosity - Method by Stabinger Viscometer
Test method for the determinaion of the dynamic viscosity and density and calculation of the kinematic viscosity of middle distillate fuels, fatty acid methylester ( FAME ) fuels and mixtures of these using the Stabinger viscometer. The viscosity is measured by speed ratio.
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der kinematischen Viskosität - Method mit dem Stabinger-Viskosimeter
Diese Europäische Norm legt ein Verfahren zur Bestimmung der kinematischen Viskosität (ν) bei 40 °C im Bereich von 2 mm2/s bis 6 mm2/s mittels Viskosimeter nach dem Stabinger-Prinzip durch Berechnung aus der dynamischen Viskosität (η) und der Dichte (ρ) von Mitteldestillatkraftstoffen und Fettsäuremethylester-Kraftstoffen (en: fatty acid methyl ester, FAME) sowie Gemischen dieser Kraftstoffe fest.
Das unter Anwendung des in dieser Norm beschriebenen Verfahrens erzielte Ergebnis ist vom Verhalten der Probe abhängig. Diese Europäische Norm sollte hauptsächlich auf Flüssigkeiten angewendet werden, deren Schubspannung und Schergeschwindigkeit proportional sind (Newtonsches Fließverhalten). Ändert sich die Viskosität jedoch signifikant mit der Schergeschwindigkeit, ist der Vergleich mit anderen Messverfahren nur bei ähnlichen Schergeschwindigkeiten zulässig.
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.
Produits pétroliers et produits relatés - Détermination de la viscosité cinématique - Méthode par Viscometer Stabinger
La présente Norme européenne spécifie une méthode de détermination de la viscosité cinématique (ν) sur
l'intervalle de 2 à 6 mm²/s à 40 °C par calcul à partir de la viscosité dynamique (η) et de la masse volumique
(ρ) de distillats moyens, d'esters méthyliques d'acides gras (EMAG) et de mélanges de ceux-ci à l'aide d'un
viscosimètre de type Stabinger.
Le résultat obtenu en utilisant la méthode décrite dans la présente Norme dépend du comportement de
l'échantillon. Il convient d'appliquer cette Norme européenne principalement sur des liquides dont la contrainte
de cisaillement et le taux de cisaillement sont proportionnels (comportement d'écoulement newtonien).
Cependant, si la viscosité varie de manière significative avec le taux de cisaillement, une comparaison avec
d'autres méthodes de mesure n'est pertinente qu'à des taux de cisaillement similaires.
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.
Naftni in sorodni proizvodi - Določevanje kinematične viskoznosti - Metoda s Stabingerjevim viskozimetrom
Preskusna metoda za ugotavljanje dinamične viskoznosti in gostote ter izračun kinematične viskoznosti srednje destilatnih goriv, goriv z metilnimi estri maščobnih kislin (FAME) in njihovih mešanic z uporabo Stabingerjevega viskozimetra. Viskoznost se izračuna z razmerjem hitrosti.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Mineralölerzeugnisse und verwandte Produkte - Bestimmung der kinematischen Viskosität - Method mit dem Stabinger-ViskosimeterProduits pétroliers et produits relatés - Détermination de la viscosité cinématique - Méthode par Viscometer StabingerPetroleum products and related products - Determination of kinematic viscosity - Method by Stabinger Viscometer75.160.20Liquid fuelsICS:Ta slovenski standard je istoveten z:EN 16896:2016SIST EN 16896:2017en,fr,de01-februar-2017SIST EN 16896:2017SLOVENSKI
STANDARD
SIST EN 16896:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16896
November
t r s x ICS
y wä s x rä t r English Version
Petroleum products and related products æ Determination of kinematic viscosity æ Method by Stabinger type viscosimeter Produits pétroliers et produits relatés æ Détermination de la viscosité cinématique æ Méthode par Viscometer Stabinger
Mineralölerzeugnisse und verwandte Produkte æ Bestimmung der kinematischen Viskosität æ Verfahren mit dem Viskosimeter nach dem StabingeræPrinzip This European Standard was approved by CEN on
t y August
t r s xä
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 Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x z { xã t r s x ESIST EN 16896:2017
EN 16896:2016 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Principle . 5 5 Reagents and materials . 5 6 Apparatus . 6 7 Sampling and sample handling . 7 7.1 Sampling . 7 7.2 Sample handling . 7 8 Calibration and verification . 7 8.1 General . 7 8.2 Verification of calibration . 7 9 Apparatus preparation . 8 10 Procedure. 8 10.1 Filling and cleaning . 8 10.2 Manual filling and cleaning using syringes . 8 10.3 Manual filling using sample displacement . 9 10.4 Automatic filling and cleaning by a sample changer . 9 11 Calculation . 10 12 Expression of results . 10 13 Precision . 10 13.1 General . 10 13.2 Repeatability, r . 10 13.3 Reproducibility, R . 10 14 Test report . 10 Bibliography . 11
SIST EN 16896:2017
EN 16896:2016 (E) 3 European foreword This document (EN 16896:2016) 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 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16896:2017
EN 16896:2016 (E) 4 1 Scope This European Standard specifies a procedure for the determination of kinematic viscosity () at 40 °C in the range from 2 mm2/s to 6 mm2/s by calculation from dynamic viscosity () and density () of middle distillate fuels, fatty acid methyl ester fuels (FAME) and mixtures of these using the Stabinger-type viscosimeter. The result obtained using the procedure described in this standard depends on the behaviour of the sample. This European Standard should be used predominantly on liquids whose shear stress and shear rate are proportional (Newtonian flow behaviour). However, if the viscosity changes significantly with the shear rate, comparison with other measuring methods is only permissible at similar shear rates. 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 the application of the Standard, and fulfil statutory and regulatory requirements for this purpose. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 3104, Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity (ISO 3104) EN ISO 3170, Petroleum liquids - Manual sampling (ISO 3170) EN ISO 3171, Petroleum liquids - Automatic pipeline sampling (ISO 3171) EN ISO 12185, Crude petroleum and petroleum products - Determination of density - Oscillating U-tube method (ISO 12185) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 dynamic viscosity
ratio of the applied shear stress to the resulting shear rate of a liquid 3.2 kinematic viscosity
ratio of the dynamic viscosity to the density of a liquid at the same temperature and pressure Note 1 to entry: The kinematic viscosity is a measure of a liquid's resistance to flow under gravity. 3.3 density
mass of a substance divided by its volume at a given temperature SIST EN 16896:2017
EN 16896:2016 (E) 5 3.4 determinability d quantitative measure of the variability associated with the same operator in a given laboratory, obtaining successive determined values using the same apparatus for a series of operations leading to a single result, defined as the difference between two such single determined values 4 Principle A test portion of a sample is introduced into the measuring cells, which are at closely controlled and known temperature. The measuring cells consist of a pair of rotating concentric cylinders and an oscillating U-tube. The dynamic viscosity is determined from the equilibrium rotational speed of the inner cylinder under the influence of the shear stress of the test specimen and an eddy current brake in conjunction with adjustment data. The density is determined by the oscillation frequency of the U-tube in conjunction with adjustment data. The kinematic viscosity is calculated by dividing the dynamic viscosity by the density. 5 Reagents and materials 5.1 Cleaning solvent, able to remove the sample from the measuring cell after the measurement and be completely miscible with all constituents of the sample. 5.2 Drying solvent, highly volatile and miscible with the cleaning solvent, shall be filtered before use and of an appropriate purity so that it does not leave any residues in the instrument. NOTE 1 A separate drying solvent is not needed if the cleaning solvent also meets the requirements of the drying solvent. NOTE 2 Commercially available volatile petroleum spirit or cleaner's naphtha of technical grade or better has proven suitable. 5.3 Compressed air, oil-free and filtered with a dew point considerably lower than the lowest measuring cell temperature at which the instrument should be dried. The pressure should be limited to 100 kPa. Instead of compressed air it is also possible to use inert gases, e.g. technical nitrogen. The requirements given for compressed air are also valid here. 5.4 Certified reference liquids for viscosity and density, identical to the reference standards referenced in EN ISO 3104 and EN ISO 12185 respectively. 5.5 Reference thermometer and probe, for verification of the temperature calibration. The measuring uncertainty of the reference thermometer including the probe shall not exceed 0,01 °C. The resolution shall be at least 0,001 °C. The probe used for the calibration (with an adapter if necessary) shall have a shape which fits the geometry of the viscosity cell. The probe replaces the measuring system (tube and measuring rotor). SIST EN 16896:2017
EN 16896:2016 (E) 6 6 Apparatus Usual laboratory apparatus and glassware, together with the following: 6.1 Stabinger type viscosimeter 6.1.1 Viscosity measurement The Stabinger type viscosimeter, a concentric rotating viscosimeter contains an outer rotor with an inner rotor (see Figure 1). The small concentric gap between these rotors is filled with sample. The outer rotor is driven at constant speed which makes the inner rotor rotatin
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