EN 16329:2013
(Main)Diesel and domestic heating fuels - Determination of cold filter plugging point - Linear cooling bath method
Diesel and domestic heating fuels - Determination of cold filter plugging point - Linear cooling bath method
This European Standard specifies an automated method for the determination of the cold filter plugging point (CFPP) of diesel and domestic heating fuels using linear cooling.
This European Standard is applicable to fatty-acid methyl esters (FAME) and to distillate fuels as well as paraffinic diesel fuels, including those containing FAME, flow-improvers or other additives, intended for use in diesel engines and domestic heating installations.
The results obtained from the method specified in this European Standard are suitable for estimating the lowest temperature at which a fuel will give trouble-free flow in the fuel system.
NOTE In the case of diesel fuels, the results are usually close to the temperature of failure in service except when the fuel system contains, for example, a paper filter installed in a location exposed to the weather or if the filter plugging temperature is more than 12 °C below the cloud point of the fuel. Domestic heating installations are usually less critical and often operate at a satisfactory level at temperatures somewhat lower than those indicated by the test results.
WARNING - The use of this standard may 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 the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Dieselkraftstoffe und Haushaltsheizöle - Bestimmung des Temperaturgrenzwertes der Filtrierbarkeit - Verfahren mit einem linearen Kühlbad
Diese Europäische Norm legt ein automatisches Verfahren zur Bestimmung des Temperaturgrenzwertes der Filtrierbarkeit (CFPP) unter Verwendung eines Prüfgerätes mit linearem Kühlbad fest.
Diese Europäische Norm ist anwendbar auf Fettsäure-Methylester (FAME) und Destillat-Brennstoffe sowie paraffinische Dieselkraftstoffe, einschließlich jene, die FAME, einen fließverbessernden oder anderen Zusatz enthalten, die für den Gebrauch in Dieselmotoren und Haushaltsheizungsanlagen bestimmt sind.
Die durch das in dieser Europäischen Norm festgelegte Verfahren erzielten Ergebnisse eignen sich zur Ermittlung der niedrigsten Temperatur, bei der ein Kraft- oder Brennstoff störungsfrei im Kraft- oder Brennstoffsystem fließen kann.
ANMERKUNG Bei Dieselkraftstoffen liegen die Ergebnisse gewöhnlich nahe bei der Betriebsstörungstemperatur, ausgenommen dann, wenn sich im Kraftstoffsystem zum Beispiel ein Papierfilter an einer Stelle befindet, die dem Wetter ausgesetzt ist oder wenn der CFPP mehr als 12 °C unterhalb des Cloudpoints des Kraftstoffes liegt. Haushalts-heizungsanlagen sind gewöhnlich weniger kritisch und arbeiten oft auf einem zufriedenstellenden Niveau bei Temperaturen, die etwas niedriger als die durch die Prüfung ausgewiesenen sind.
WARNUNG — Die Anwendung dieser Europäischen 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.
Combustibles pour moteurs diesel et pour installations de chauffage domestique - Détermination de la température limite de filtrabilité - Méthode au bain à refroidissement linéaire
La présente Norme européenne spécifie une méthode automatisée pour la détermination de la température limite de filtrabilité (TLF) des combustibles pour moteurs diesel et pour installation de chauffage domestique faisant appel à un refroidissement linéaire
La présente Norme européenne est applicable aux esters méthyliques d’acides gras (EMAG) et aux combustibles distillés, tout autant qu’aux carburants diesel paraffiniques, y compris ceux contenant des EMAG, des additifs améliorateurs d’écoulement ou autres additifs, destinés à être utilisés dans les moteurs diesel et les installations de chauffage domestique.
Les résultats obtenus par la méthode spécifiée dans la présente Norme européenne conviennent pour estimer la température la plus basse à laquelle un combustible ne présentera pas de problème d’écoulement dans le circuit de combustible.
NOTE Dans le cas des combustibles pour moteurs diesel, les résultats sont généralement proches de la température de défaillance observée en service, sauf lorsque le circuit de combustible comporte, par exemple, un filtre en papier disposé à un emplacement soumis aux intempéries ou si la température de colmatage du filtre est inférieure de plus de 12 °C à celle du point de trouble du combustible. Les installations de chauffage domestique sont généralement moins critiques et fonctionnent souvent à un niveau satisfaisant à des températures quelque peu inférieures à celles indiquées par les résultats des essais.
AVERTISSEMENT — L'utilisation de la présente Norme européenne peut impliquer l'intervention de produits, d'opérations et d'équipements à caractère dangereux. La présente Norme européenne n'est pas censée aborder tous les problèmes de sécurité concernés par sa mise en oeuvre. Il est de la responsabilité de l'utilisateur de consulter et d'établir des règles de sécurité et d'hygiène appropriées et de déterminer l'applicabilité des restrictions réglementaires avant utilisation.
Dizelsko gorivo in kurilno olje za gospodinjstvo - Ugotavljanje filtrirnosti - Metoda linearnega ohlajanja v kopeli
Ta evropski standard določa avtomatizirano metodo za ugotavljanje filtrirnosti (CFPP) dizelskega goriva in kurilnega olja za gospodinjstvo z linearnim ohlajanjem. Ta evropski standard se uporablja za metilne estre maščobnih kislin (FAME) in destilirana goriva ter parafinska dizelska goriva, vključno s tistimi, ki vsebujejo metilne estre maščobnih kislin, izboljševalce pretočnosti in druge dodatke, namenjene za uporabo v dizelskih motorjih in kurilnih inštalacijah za gospodinjstvo. Rezultati, pridobljeni z metodo iz tega standarda so primerni za oceno najnižje temperature, pri kateri se bo gorivo brez težav pretakalo skozi sistem za gorivo. OPOMBA V primeru dizelskih goriv so rezultati običajno blizu temperature odpovedi delovanja, razen če sistem za gorivo vsebuje npr. papirnati filter, ki je nameščen na mestu, izpostavljenem vremenskim vplivom, ali če je temperatura filtrirnosti višja od 12 °C pod motniščem goriva. Kurilne inštalacije za gospodinjstvo so običajno manj kritične in velikokrat zadovoljivo delujejo pri temperaturah, ki so nekoliko nižje od tistih v rezultatih preskušanja. OPOZORILO – Pri uporabi tega standarda so lahko prisotni nevarni materiali, postopki in oprema. Ta standard ne obravnava vseh varnostnih težav, ki se nanašajo na njegovo uporabo. Za vzpostavitev ustreznih varnostnih in zdravstvenih praks ter za določitev uporabnosti regulativnih omejitev pred uporabo je odgovoren uporabnik tega standarda.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dizelsko gorivo in kurilno olje za gospodinjstvo - Ugotavljanje filtrirnosti - Metoda linearnega ohlajanja v kopeliDieselkraftstoffe und Haushaltheizöle - Bestimmung des Termperaturgrenzwertes der Filtrierbarkeit - Lineair-gekühlter Bade MethodeCombustibles pour moteurs diesel et pour installations de chauffages domestiques - Détermination de la température limite de filtrabilité - Méthode d'un bain avec refroidissement linéaireDiesel and domestic heating fuels - Determination of cold filter plugging point - Linear cooling bath method75.160.20Liquid fuelsICS:Ta slovenski standard je istoveten z:EN 16329:2013SIST EN 16329:2013en,de01-julij-2013SIST EN 16329:2013SLOVENSKI
STANDARDSIST EN 16329:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16329
May 2013 ICS 75.160.20 English Version
Diesel and domestic heating fuels - Determination of cold filter plugging point - Linear cooling bath method
Combustibles pour moteurs diesel et pour installations de chauffage domestique - Détermination de la température limite de filtrabilité - Méthode au bain à refroidissement linéaire
Dieselkraftstoffe und Haushaltsheizöle - Bestimmung des Temperaturgrenzwertes der Filtrierbarkeit - Verfahren mit einem linearen Kühlbad This European Standard was approved by CEN on 21 March 2013.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of 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 United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16329:2013: ESIST EN 16329:2013
EN 16329:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................3 1 Scope ......................................................................................................................................................5 2 Normative references ............................................................................................................................5 3 Terms and definitions ...........................................................................................................................5 4 Principle ..................................................................................................................................................6 5 Reagents and materials ........................................................................................................................6 6 Apparatus ...............................................................................................................................................6 7 Sampling .............................................................................................................................................. 14 8 Preparation of the test sample .......................................................................................................... 14 9 Preparation of apparatus ................................................................................................................... 14 10 Procedure ............................................................................................................................................ 14 11 Calibration ........................................................................................................................................... 15 11.1 General ................................................................................................................................................. 15 11.2 Thermometers calibration .................................................................................................................. 15 11.3 Cooling unit ......................................................................................................................................... 15 11.4 Vacuum unit ........................................................................................................................................ 15 12 Expression of results ......................................................................................................................... 15 13 Precision .............................................................................................................................................. 16 13.1 General ................................................................................................................................................. 16 13.2 Repeatability ........................................................................................................................................ 16 13.3 Reproducibility .................................................................................................................................... 16 14 Test report ........................................................................................................................................... 16 Annex A (normative)
Thermometer requirements ........................................................................................ 17 Bibliography ..................................................................................................................................................... 18
SIST EN 16329:2013EN 16329:2013 (E) 3 Foreword This document (EN 16329:2013) 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 November 2013, and conflicting national standards shall be withdrawn at the latest by November 2013. 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 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 16329:2013
EN 16329:2013 (E) 4 Introduction This document specifies in detail an automated method as an alternative technique to EN 116:1997 [1]. The cooling bath is no longer operated in several temperature stages (as in EN 116), but is replaced by a refrigeration unit with linear cooling. Round Robin studies conducted for this determination method [2] showed improved precision compared to EN 116:1997. The studies covered currently marketed fuels, including non-fossil components (FAME-blends) or biofuels. Although a bias has been identified during the statistical comparison of EN 116 and this document, this is not considered to be significant because the bias is within the repeatability of both methods. The range of CFPP values for the fuels for the Round Robin – therefore the basis of the determined precision – was from –47 °C to +11 °C, but the results also showed indications of issues for fuel samples with a CFPP below
–30 °C. Further CEN studies are planned to assess the magnitude of these issues and the bias in additional market samples. A separate study is planned to further confirm the precision for paraffinic diesel fuels as the amount of these samples included in the Round Robin had been limited. A report with further statistical details of the Round Robin is under development within CEN. At the same time, EN 116 [1] will be revised as well following conclusions from the Round Robin studies. SIST EN 16329:2013
EN 16329:2013 (E) 5 1 Scope This European Standard specifies an automated method for the determination of the cold filter plugging point (CFPP) of diesel and domestic heating fuels using linear cooling. This European Standard is applicable to fatty-acid methyl esters (FAME) and to distillate fuels as well as paraffinic diesel fuels, including those containing FAME, flow-improvers or other additives, intended for use in diesel engines and domestic heating installations. The results obtained from the method specified in this European Standard are suitable for estimating the lowest temperature at which a fuel will give trouble-free flow in the fuel system. NOTE In the case of diesel fuels, the results are usually close to the temperature of failure in service except when the fuel system contains, for example, a paper filter installed in a location exposed to the weather or if the filter plugging temperature is more than 12 °C below the cloud point of the fuel. Domestic heating installations are usually less critical and often operate at a satisfactory level at temperatures somewhat lower than those indicated by the test results. WARNING — The use of this standard may 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 the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 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 3170, Petroleum liquids — Manual sampling (ISO 3170) EN ISO 3171, Petroleum liquids — Automatic pipeline sampling (ISO 3171) ISO 261, ISO general purpose metric screw threads — General plan 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 cold filter plugging point CFPP highest temperature at which a given volume of fuel fails to pass through a standardized filtration device in a specified time, when cooled under standardized conditions SIST EN 16329:2013
EN 16329:2013 (E) 6 4 Principle This European Standard describes the use of automated test equipment only.
A test portion of the fuel is cooled under the specified conditions and is drawn at intervals of 1 °C into a pipette under a controlled vacuum of 2 kPa through a standardized wire mesh filter. The procedure is repeated, as the fuel continues to cool, for each 1 °C below the first test temperature. Testing is continued until the amount of wax crystals, which have separated out of solution, is sufficient to stop or slow down the flow so that the time taken to fill the pipette exceeds 60 s or the fuel fails to return completely to the test jar before the fuel has cooled by a further 1 °C. The indicated temperature at which the last filtration was commenced is recorded as the cold filter plugging point (CFPP). 5 Reagents and materials 5.1 Hydrocarbon solvents, technical grade, e.g. Heptane 5.2 Light hydrocarbon solvents, technical grade, e.g. Isopentane 5.3 Lintless filter paper, with particle retention of 30 µm 5.4 Certified reference materials NOTE Certified reference materials can be obtained from the European Commission, JRC. The Institute for Reference Materials and Measurements (IRMM), Retieseweg 111, B-2440 Geel, Belgium, can be contacted to obtain further information. 6 Apparatus 6.1 General The equipment is described in detail in 6.2 to 6.12. Unless otherwise stated, all dimensions in the figures are given in mm. IMPORTANT — Parts of the apparatus made of copper, zinc or brass can interact with bio-components like Fatty Acid Methyl Ester (FAME). Care shall be taken. Parts made from alternative materials are available. 6.2 Test jar, cylindrical, of clear glass, flat bottomed, with an outside diameter of (34 ± 0,5) mm, a wall thickness of (1,20 ± 0,
...SLOVENSKI STANDARD
oSIST prEN 16329:2011
01-december-2011
Dizelsko gorivo in kurilno olje za gospodinjstvo - Ugotavljanje filtrirnosti - Metoda
linearnega ohlajanja v kopeliDiesel and domestic heating fuels - Determination of cold filter plugging point - Linear
cooling bath methodDieselkraftstoffe und Haushaltheizöle - Bestimmung des Termperaturgrenzwertes der
Filtrierbarkeit - Lineair-gekühlter Bade MethodeCombustibles pour moteurs diesel et pour installations de chauffages domestiques -
Détermination de la température limite de filtrabilité - Méthode d'un bain avecrefroidissement linéaire
Ta slovenski standard je istoveten z: prEN 16329
ICS:
75.160.20 7HNRþDJRULYD Liquid fuels
oSIST prEN 16329:2011 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 16329:2011
CEN/TC 19
Date: 2011-07
TC 19 WI 019420
CEN/TC 19
Secretariat: NEN
Diesel and domestic heating fuels — Determination of cold filter plugging
point — Linear cooling bath method
Dieselkraftstoffe und Haushaltheizöle — Bestimmung des Termperaturgrenzwertes der Filtrierbarkeit — Lineair-
gekühlter Bade MethodeCombustibles pour moteurs diesel et pour installations de chauffages domestiques — Détermination de la
temperature limite de filtrabilité — Méthod d'un baine avec refraichement lineaire
ICS: 75.120.60Descriptors: petroleum, petroleum products, diesel fuels, fuels, fuel oil, domestic fuel oil, heating oil, cold tests, cold
flow, cold operability, filtration, flow rate, flow measurement, test equipment, thermometer, temperature
measurement, low-temperature testingDocument type: European Standard
Document subtype:
Document stage: CEN Enquiry
Document language: E
Y:\STD_MGT\STDDEL\PRODUCTION\Standards\00019\420\41_e_stf.doc STD Version 2.3
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oSIST prEN 16329:2011
prEN 16329:2011 (E)
Contents Page
Foreword ..............................................................................................................................................................4
1 Scope ......................................................................................................................................................6
2 Normative references ............................................................................................................................6
3 Terms and definitions ...........................................................................................................................6
4 Principle ..................................................................................................................................................7
5 Reagents and materials ........................................................................................................................7
5.1 Hydrocarbon solvents ...........................................................................................................................7
5.2 Light hydrocarbon solvents .................................................................................................................7
5.3 Lintless filter paper ................................................................................................................................7
5.4 Certified reference materials ................................................................................................................7
6 Apparatus ...............................................................................................................................................7
6.1 General ....................................................................................................................................................7
6.2 Test jar ....................................................................................................................................................9
6.3 Jacket ......................................................................................................................................................9
6.4 Spacer .....................................................................................................................................................9
6.5 Stopper ................................................................................................................................................ 11
6.6 Pipette with filter unit ......................................................................................................................... 11
6.7 Automated detection system ............................................................................................................. 14
6.8 salve unit ............................................................................................................................................. 14
6.9dhermometers ..................................................................................................................................... 14
6.10 Cooling bath ........................................................................................................................................ 16
6.11 Vacuum ................................................................................................................................................ 16
7 Sampling .............................................................................................................................................. 17
8 Preparation of the test sample .......................................................................................................... 18
9 Preparation of apparatus ................................................................................................................... 18
10 Procedure ............................................................................................................................................ 18
10.1 .............................................................................................................................................................. 18
10.2 .............................................................................................................................................................. 18
10.3 .............................................................................................................................................................. 18
10.4 .............................................................................................................................................................. 18
10.5 .............................................................................................................................................................. 18
10.6 .............................................................................................................................................................. 18
10.7 .............................................................................................................................................................. 18
10.8 .............................................................................................................................................................. 19
10.9 .............................................................................................................................................................. 19
11 Calibration ........................................................................................................................................... 19
11.1 General ................................................................................................................................................. 19
11.2 Thermometers calibration .................................................................................................................. 19
11.3 Cooling unit ......................................................................................................................................... 19
11.4 Vacuum unit ........................................................................................................................................ 19
12 Expression of results ......................................................................................................................... 19
13 Precision .............................................................................................................................................. 19
13.1 General ................................................................................................................................................. 19
13.2 Repeatability ........................................................................................................................................ 20
13.3 Reproducibility .................................................................................................................................... 20
14 Test report ........................................................................................................................................... 20
Annex A (normative) Thermometer requirements ........................................................................................ 21
Bibliography ..................................................................................................................................................... 22
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prEN 16329:2011 (E)
Figures
Figure 1 — General arrangement of apparatus ................................................................................................... 8
Figure 3 — Pipette .............................................................................................................................................. 11
Figure 4 — Filter unit .......................................................................................................................................... 13
Figure 5 — Filter holder ...................................................................................................................................... 14
Figure 6 — Filter unit, thermometer and Pt100 position .................................................................................... 15
Figure 7 — Cooling profile for bath temperature (example) ............................................................................... 16
Figure 8 — Vacuum regulator with glass bottles ................................................................................................ 17
Figure A.1 — Thermometer description ............................................................................................................. 21
TableTable A.1 — Thermometer dimensions .............................................................................................................. 21
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prEN 16329:2011 (E)
Foreword
This document (prEN 16329:2011) 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 document is currently submitted to the CEN Enquiry.
---------------------- Page: 6 ----------------------
oSIST prEN 16329:2011
prEN 16329:2011 (E)
Introduction
This document presents an alternative technique towards EN 116:1997. It describes an automated method in
detail. Next, the cooling bath as use to be operated in several temperature stages, is replaced by a
refrigeration unit with linear cooling.Round Robin studies conducted for this determination method showed slightly different precision values
compared to EN 116:1997. The studies covered current situation of marketed fuels including non-fossil
component (FAME-blends) or biofuels. Statistically no significant deviation in precision could be found
between the technique described in EN 116:1997 and this European Standard.A Technical Report with further details on the analysis is under development within CEN. In addition further
investigations are planned.---------------------- Page: 7 ----------------------
oSIST prEN 16329:2011
prEN 16329:2011 (E)
1 Scope
This European Standard specifies a method for the determination of the cold filter plugging point (CFPP) of
diesel and domestic heating fuels using linear cooling.This European Standard is applicable to distillate fuels, including those containing fatty-acid methyl esters
(FAME), a flow-improving or other additive, intended for use in diesel engines and domestic heating
installations.The results obtained from the method specified in this European Standard are suitable for estimating the
lowest temperature at which a fuel will give trouble-free flow in the fuel system.
NOTE In the case of diesel fuels the results are usually close to the temperature of failure in service except when the
fuel system contains, for example, a paper filter installed in a location exposed to the weather or if the filter plugging
temperature is more than 12 °C below the cloud point of the fuel. Domestic heating installations are usually less critical
and often operate satisfactorily at temperatures somewhat lower than those indicated by the test results.
WARNING — The use of this standard may 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 the user of this standard to establish appropriate safety and health practices and
determine the applicability of regulatory limitations prior to use.2 Normative references
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 3170, Petroleum liquids — Manual sampling (ISO 3170:2004)
EN ISO 3171, Petroleum liquids — Automatic pipeline sampling (ISO 3171:1988)
ISO 261, ISO general purpose metric screw threads — General plan
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Cold Filter Plugging Point
CFPP
highest temperature at which a given volume of fuel fails to pass through a standardized filtration device in a
specified time, when cooled under standardized conditions---------------------- Page: 8 ----------------------
oSIST prEN 16329:2011
prEN 16329:2011 (E)
4 Principle
This European Standards describes the use of automated test equipment only. Manual test equipment may be
used, but for referee purposes only automated test equipment is allowed.A test portion of the fuel is cooled under the specified conditions and is drawn at intervals of 1 °C into a pipette
under a controlled vacuum of 2 kPa through a standardized wire mesh filter. The procedure is repeated, as
the fuel continues to cool, for each 1 °C below the first test temperature. Testing is continued until the amount
of wax crystals which have separated out of solution is sufficient to stop or slow down the flow so that the time
taken to fill the pipette exceeds 60 s or the fuel fails to return completely to the test jar before the fuel has
cooled by a further 1 °C.The indicated temperature at which the last filtration was commenced is recorded as the cold filter plugging
point.5 Reagents and materials
5.1 Hydrocarbon solvents, e. g. Heptane
5.2 Light hydrocarbon solvents, e. g. Isopentane
5.3 Lintless filter paper, with particle retention of 30 µm
5.4 Certified reference materials
NOTE Certified reference materials may be obtained from the Commission of the European Communities.
Community Bureau of Reference, DG XII, Rue de la Loi 200, B-1049 Brussels, who can be contacted to obtain further
information.6 Appa
...
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