SIST EN 12662:2014
(Main)Liquid petroleum products - Determination of total contamination in middle distillates, diesel fuels and fatty acid methyl esters
Liquid petroleum products - Determination of total contamination in middle distillates, diesel fuels and fatty acid methyl esters
EN 12662 specifies a method for the determination of the content of undissolved substances, referred to as total contamination, in middle distillates, in diesel fuels containing up to 30 % (V/V) fatty acid methyl esters (FAME), and in neat FAME. The working range is from 12 mg/kg to 30 mg/kg and it was established in an interlaboratory study by applying EN ISO 4259. This European Standard in general applies to products having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. diesel fuel as specified in EN 590 and FAME as in EN 14214. This test method may be used for diesel fuels containing more than 30 % (V/V) FAME and for petroleum products having a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, however in such cases the precision of the test method has not been defined.
Flüssige Mineralölerzeugnisse - Bestimmung der Gesamtverschmutzung in Mitteldestillaten, Dieselkraftstoff und Fettsäure-Methylestern
Diese Europäische Norm legt ein Prüfverfahren zur Bestimmung des Gehalts an ungelösten Stoffen, bezeichnet als Gesamtverschmutzung, in Mitteldestillaten, in Dieselkraftstoff mit einem Anteil von bis zu 30 % (V/V) Fettsäure-Methylester (en: fatty acid methyl ester (FAME)) und in reinem FAME fest. Der zulässige Messbereich von 12 mg/kg bis 30 mg/kg wurde anhand von Ringversuchen unter Anwendung von EN ISO 4259 [1] festgelegt.
Diese Europäische Norm gilt im Allgemeinen für Erzeugnisse mit einer kinematischen Viskosität nicht über 8 mm2/s bei 20 °C bzw. 5 mm2/s bei 40 °C, z. B. Dieselkraftstoffe nach EN 590 [2] und FAME nach EN 14214 [3].
Dieses Prüfverfahren kann ebenfalls für Dieselkraftstoffe mit mehr als 30 % (V/V) FAME sowie für Mineralölerzeugnisse mit einer kinematischen Viskosität oberhalb von 8 mm2/s bei 20 °C oder 5 mm2/s bei 40 °C eingesetzt werden. Für diese erweiterte Anwendung des Prüfverfahrens gibt es bisher allerdings keine Präzisionsangaben.
ANMERKUNG 1 Eine starke Verschmutzung im Kraftstoffsystem kann zum frühzeitigen Verstopfen der Filter und/oder Geräteversagen führen und ist deshalb unerwünscht.
ANMERKUNG 2 Für die Zwecke dieser Europäischen Norm wird zur Angabe des Volumenanteils, φ, einer Substanz der Ausdruck „% (V/V)“ verwendet.
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 Sicher-heitsprobleme anzusprechen. Der Anwender dieser Norm ist dafür verantwortlich, vorher ange-messene Maßnahmen hinsichtlich Sicherheit und Gesundheit zu ergreifen und die Anwendbarkeit einschränkender Vorschriften zu ermitteln.
Produits pétroliers liquides - Détermination de la contamination des distillats moyens, gazoles et methylesters gras
La présente Norme européenne prescrit une méthode de détermination de la teneur en substances non dissoutes, référencée comme contamination totale, dans les distillats moyens, dans les gazoles contenant jusqu’à 30 % (V/V) d’esters méthyliques d’acides gras (EMAG) et dans les EMAG purs. Le domaine d’application s’étend sur un intervalle de teneurs en contaminants allant de 12 mg/kg jusqu’à 30 mg/kg ; celui-ci a été établi au moyen d’une étude interlaboratoires conformément à l’EN ISO 4259 [2].
Cette Norme européenne s'applique généralement aux produits dont la viscosité cinématique ne dépasse pas 8 mm2/s à 20 C ou 5 mm2/s à 40 C, par exemple les carburants pour moteurs diesel spécifiés dans la norme EN 590 [1].
Cette méthode d’essai peut être utilisée sur des carburants diesel contenant plus de 30 % (V/V) d’EMAG et sur des produits pétroliers dont la viscosité cinématique est supérieure à 8 mm²/s à 20 °C ou à 5 mm²/s à
40 °C, cependant ne peut alors être appliquée.
NOTE 1 Une contamination excessive peut provoquer un encrassement prématuré des filtres et / ou une panne de la mécanique et n'est par conséquent pas souhaitable.
NOTE 2 Pour les besoins de la présente norme européenne, l'expression « % (V/V) » est employée pour représenter la fraction volumique, φ, d’un produit.
AVERTISSEMENT — L'utilisation de la présente norme implique 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 œuvre. 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.
Tekoči naftni proizvodi - Določevanje nečistoč v srednjih destilatih, dizelskem gorivu in v metilnih estrih maščobnih kislin
Standard EN 12662 določa metodo za določevanje vsebnosti neraztopljenih snovi (skupne nečistoče) v srednjih destilatih, dizelskem gorivu, ki vsebuje do 30 % (V/V) metilnih estrov maščobnih kislin, in v čistih metilnih estrih maščobnih kislin. Delovno območje je od 12 do 30 mg/kg, ki je bilo določeno z medlaboratorijsko študijo z uporabo standarda EN ISO 4259. Ta evropski standard se v splošnem uporablja za izdelke s kinematično viskoznostjo, ki ne presega 8 mm2/s pri 20 °C ali 5 mm2/s pri 40 °C, kot so dizelsko gorivo iz standarda EN 590 in merilni estri maščobnih kislin iz standarda EN 14214. Ta preskusna metoda se lahko uporablja za dizelska goriva, ki vsebujejo več kot 30 % (V/V) metilnih estrov maščobnih kislin, in naftne derivate s kinematično viskoznostjo, večjo od 8 mm2/s s pri 20 °C ali 5 mm 2/s pri 40 °C, vendar v takih primerih natančnost preskusne metode ni bila določena.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flüssige Mineralölerzeugnisse - Bestimmung der Gesamtverschmutzung in Mitteldestillaten, Dieselkraftstoff und Fettsäure-MethylesternProduits pétroliers liquides - Détermination de la contamination des distillats moyens, gazoles et methylesters grasLiquid petroleum products - Determination of total contamination in middle distillates, diesel fuels and fatty acid methyl esters75.160.20Liquid fuelsICS:Ta slovenski standard je istoveten z:EN 12662:2014SIST EN 12662:2014en,de01-maj-2014SIST EN 12662:2014SLOVENSKI
STANDARDSIST EN 12662:20081DGRPHãþD
SIST EN 12662:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12662
February 2014 ICS 75.160.20 Supersedes EN 12662:2008English Version
Liquid petroleum products - Determination of total contamination in middle distillates, diesel fuels and fatty acid methyl esters
Produits pétroliers liquides - Détermination de la contamination totale des distillats moyens, des gazoles et des esters méthyliques d'acides gras
Flüssige Mineralölerzeugnisse - Bestimmung der Gesamtverschmutzung in Mitteldestillaten, Dieselkraftstoff und Fettsäure-Methylestern This European Standard was approved by CEN on 13 December 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12662:2014 ESIST EN 12662:2014
EN 12662:2014 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Principle .5 5 Reagents and materials .5 6 Equipment .5 7 Cleansing of sample containers and filtration apparatus .6 8 Sampling .7 9 Preparation of the test portion .7 10 Preparation of the equipment .9 11 Procedure .9 12 Calculation . 10 13 Expression of results . 10 14 Precision . 10 15 Test report . 11 Bibliography . 12
SIST EN 12662:2014
EN 12662:2014 (E) 3 Foreword This document (EN 12662:2014) 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 August 2014, and conflicting national standards shall be withdrawn at the latest by August 2014. 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. This document supersedes EN 12662:2008. The significant technical changes between this European Standard and the previous edition are: — extension of the scope to middle distillates, diesel fuels containing up to 30 % (V/V) fatty acid methyl ester (FAME) and neat FAME; — update of the working range and precision statement based on interlaboratory study with field samples carried out in 2011 within CEN/TC 19; — inclusion of a dilution procedure for the determination of total contamination of neat FAME; — improved description of the filtration procedure and equipment. 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, 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 12662:2014
EN 12662:2014 (E) 4 1 Scope This European Standard specifies a method for the determination of the content of undissolved substances, referred to as total contamination, in middle distillates, in diesel fuels containing up to 30 % (V/V) fatty acid methyl esters (FAME), and in neat FAME. The working range is from 12 mg/kg to 30 mg/kg and it was established in an interlaboratory study by applying EN ISO 4259 [1]. This European Standard in general applies to products having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. diesel fuel as specified in EN 590 [2] and FAME as in EN 14214 [3]. This test method may be used for diesel fuels containing more than 30 % (V/V) FAME and for petroleum products having a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, however in such cases the precision of the test method has not been defined. NOTE 1 Excessive contamination in a fuel system can give rise to premature blocking of filters and/or hardware failure, and is therefore undesirable. NOTE 2 For the purposes of this European Standard, the term “% (V/V)” is used to represent the volume fraction, 3, of a material. WARNING — 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 to 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 14275, Automotive fuels — Assessment of petrol and diesel fuel quality — Sampling from retail site pumps and commercial site fuel dispensers EN ISO 3170, Petroleum liquids — Manual sampling (ISO 3170) EN ISO 3171, Petroleum liquids — Automatic pipeline sampling (ISO 3171) ISO 3819, Laboratory glassware — Beakers 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 total contamination undissolved substances retained on a filter after filtration under test conditions 3.2 absolute pressure pressure measured relative to zero pressure or a total vacuum SIST EN 12662:2014
EN 12662:2014 (E) 5 4 Principle A sample portion is weighed and filtered under vacuum through a pre-weighed filter. In the case of neat FAME and liquid petroleum products having a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, the weighed sample portion is diluted with a solvent before filtration. The filter with the residue is washed, dried and weighed. Contamination is calculated from the difference in mass of the filter and expressed relative to the sample mass as mg/kg. 5 Reagents and materials 5.1 Heptane, with a purity no less than 99,0 % (V/V), filtered using a membrane filter (6.18). NOTE Heptane used as a reference fuel in EN ISO 5164 [4] is suitable. 5.2 Xylene, analytical grade, filtered using a membrane filter (6.18). 5.3 Propan-2-ol, with a purity no less than 99,0 % (V/V). NOTE Propan-2-ol is used to dry glassware and the sample container after rinsing with water. 5.4 Solvent, add 750 ml heptane (5.1) and 250 ml xylene (5.2) to a 1 l glass bottle (6.5) and mix thoroughly. 6 Equipment All glassware and sample containers shall be carefully cleaned as described in Clause 7. Usual laboratory apparatus and glassware, together with the following: 6.1 Filtration apparatus, suitable for a filter (6.2), as shown in Figure 1. A different filtration apparatus may be used if it is suitable to take the filters given in 6.2. 6.2 Filters, of high retention glass fibre type, 47 mm in diameter and with a 0,7
NOTE Glass fibre filters Whatman GF-F type have been found suitable for total contamination measurements. This information is given for the convenience of users of this European Standard and does not constitute an endorsement by CEN of this product. 6.3 Beakers, tall form 0,5 l and 1 l, conforming with ISO 3819 or an equivalent national standard. 6.4 Cylinders, 500 ml and 1 000 ml graduated cylinders. 6.5 Glass bottles, 0,5 l and 1 l, with screw caps. 6.6 Oven, of the static type (without fan assisted circulation), explosion-proof, capable of heating to (110 ± 5) °C. 6.7 Desiccator, containing freshly activated silica gel (or equivalent desiccant) with a moisture content indicator. 6.8 Glass Petri dishes with covers, greater than 50 mm in diameter. 6.9 Analytical balance, capable of weighing to the nearest 0,1 mg. 6.10 Forceps, with round shaped tips for transferring the filter from the filter holder to the Petri dish and from the latter on to the dish of the analytical balance. 6.11 Water bath or oven, capable of maintaining the following temperatures: (40 ± 1) °C and (60 ± 1) °C. SIST EN 12662:2014
EN 12662:2014 (E) 6 6.12 Wash bottle, fitted with spray nozzle, suitable for use with heptane (5.1). 6.13 Top load balance, capable of weighing 1 500 g to the nearest 0,1 g. 6.14 Vacuum source, capable of maintaining an absolute pressure of 2 kPa to 5 kPa inside the filtration apparatus (see Figure 1). NOTE
The vacuum range excludes the use of a water vacuum pump. 6.15 Suitable clean sample containers. 6.16 Stopwatch, capable of measuring 30 min ± 1 min. 6.17 Clean plastic film or aluminium foil. 6.18 Filter, membrane with a mean pore size of 0,45
Key 1
wire to ground 4 filter holder 7 safety flask 2 clamp 5 receiving flask 8 vacuometer 3
funnel 6 vacuum tubing 9 to vacuum pump Figure 1 — Filtration apparatus for determining contamination 7 Cleansing of sample containers and filtration apparatus IMPORTANT — Due to the extremely low levels of material being measured, it is essential that this testing is performed in a clean environment to minimize the possibility of contamination. 7.1 Clean strictly, in the manner described in 7.2 to 7.7, all the surfaces of all components of the sample containers and parts of the apparatus that are: a) likely to come into contact with the sample or heptane (5.1), or b) capable of transferring extraneous matter to the filter. SIST EN 12662:2014
EN 12662:2014 (E) 7 7.2 Wash with warm tap water containing water soluble detergent. 7.3 Rinse thoroughly with warm tap water. 7.4 Rinse thoroughly with water, handling cont
...
SLOVENSKI STANDARD
oSIST prEN 12662:2012
01-oktober-2012
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Liquid petroleum products - Determination of total contamination in middle distillates,
diesel fuels and fatty acid methyl esters
Flüssige Mineralölerzeugnisse - Bestimmung der Gesamtverschmutzung in
Mitteldestillaten, Dieselkraftstoff und Fettsäure-Methylestern
Produits pétroliers liquides - Détermination de la contamination des distillats moyens,
gazoles et methylesters gras
Ta slovenski standard je istoveten z: prEN 12662 rev
ICS:
75.160.20 7HNRþDJRULYD Liquid fuels
oSIST prEN 12662:2012 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 12662:2012
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oSIST prEN 12662:2012
EUROPEAN STANDARD
DRAFT
prEN 12662 rev
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2012
ICS 75.160.20 Will supersede EN 12662:2008
English Version
Liquid petroleum products - Determination of total contamination
in middle distillates, diesel fuels and fatty acid methyl esters
Produits pétroliers liquides - Détermination de la Flüssige Mineralölerzeugnisse - Bestimmung der
contamination des distillats moyens, gazoles et Gesamtverschmutzung in Mitteldestillaten, Dieselkraftstoff
methylesters gras und Fettsäure-Methylestern
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 19.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12662 rev:2012: E
worldwide for CEN national Members.
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oSIST prEN 12662:2012
prEN 12662:2012
Contents
page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Principle .5
5 Reagents and materials .5
6 Apparatus .5
7 Preparation of sample containers and apparatus .6
8 Sampling .7
9 Preparation of the test portion .7
10 Preparation of the equipment .8
11 Procedure .8
12 Calculation .9
13 Expression of results . 10
14 Precision . 10
15 Test report . 10
Bibliography . 11
2
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oSIST prEN 12662:2012
prEN 12662:2012
Foreword
This document (prEN 12662:2012) 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.
This document will supersede EN 12662:2008.
.
3
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oSIST prEN 12662:2012
prEN 12662:2012
1 Scope
This European Standard specifies a method for the determination of total contamination as the content of
undissolved substances in middle distillates, in diesel fuels containing up to 30 % (V/V) fatty acid methyl esters
(FAME), and in pure FAME. This method is applicable for contaminant contents from about 12 mg/kg to about
30 mg/kg.
NOTE 1 Excessive contamination in a fuel system can give rise to premature blocking of filters and/or hardware failure, and
is therefore undesirable.
2
This standard in general applies to products having a kinematic viscosity not exceeding 8 mm /s at 20 °C, or
2
5 mm /s at 40 °C, e.g. diesel fuel as specified in EN 590 [1].
Although the test method precision has not been defined, the method described may also be used for blends
containing more than 30 % (V/V) FAME and for petroleum products having a viscosity exceeding the above.
2 2
For liquid petroleum products having a kinematic viscosity exceeding 8 mm /s at 20 ºC or 5 mm /s at 40 ºC a
separate procedure is in 11.2.
NOTE 2 For the purposes of this European Standard, the term "% (V/V)" is used to represent the volume fraction.
WARNING — 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 to
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 14275, Automotive fuels – Assessment of petrol and diesel fuel quality - Sampling from retail site pumps and
commercial site fuel dispensers
EN ISO 3170, Petroleum liquids — Manual sampling (ISO 3170)
EN ISO 3171, Petroleum liquids — Automatic pipeline sampling (ISO 3171)
ISO 3819, Laboratory glassware – Beakers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply:
3.1
total contamination
undissolved substances retained on a filter after filtration under test conditions
3.2
absolute pressure
pressure measured relative to zero pressure or a total vacuum
4
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oSIST prEN 12662:2012
prEN 12662:2012
4 Principle
A sample portion is weighed and filtered under vacuum through a pre-weighed filter. In the case of pure FAME, the
weighed sample portion is diluted with a solvent before filtration. The filter with the residue is washed, dried and
weighed. Contamination is calculated from the difference in mass of the filter and expressed relative to the sample
mass as mg/kg.
5 Reagents and materials
5.1 Heptane, with a purity no less than 99,0 % (V/V), filtered using a filter (membrane) with a mean pore size of
0,45 µm.
NOTE Heptane used as a reference fuel in EN ISO 5164 [2] is suitable.
5.2 Xylene, analytical grade, filtered using a filter (membrane) with a mean pore size of 0,45 µm.
5.3 Propan-2-ol, with a purity no less than 99,0 % (V/V).
NOTE Propan-2-ol is used to dry glassware and the sample container after rinsing with water.
5.4 Solvent, add 750 ml heptane (5.1) and 250 ml xylene (5.2) to a 1 l glass bottle and mix thoroughly.
6 Apparatus
All glassware and sampling vessels to be carefully cleaned as described in Clause 7.
Usual laboratory apparatus and glassware, together with the following:
6.1 Filtration apparatus, suitable for a filter (6.2), as shown in Figure 1.
6.2 Filters, of high retention glass fibre type, 47 mm in diameter and with a 0,7 µm mean pore size.
NOTE Glass fibre filters Whatman GF-F type are suitable for total contamination measurements.
6.3 Beakers, tall form 0,5 l and 1 l, conforming with ISO 3819 or an equivalent national standard, and 500 ml
and 1 000 ml graduated cylinder.
6.4 Glass bottles, 0,5 l and 1 l, with screw caps.
6.5 Oven, of the static type (without fan assisted circulation), explosion-proof, capable of heating to (110 ± 5) °C.
6.6 Desiccator, containing freshly activated silica gel (or equivalent desiccant) with a moisture content indicator.
6.7 Glass Petri dishes with covers, greater than 50 mm in diameter.
6.8 Analytical balance, capable of weighing to the nearest 0,1 mg.
6.9 Forceps, with round shaped tips for transferring the filter from the filter holder to the Petri dish and from the
latter on to the dish of the analytical balance.
6.10 Water bath or oven, capable of maintaining the following temperatures: 40 °C ± 1 °C and 60 °C ± 1 °C.
6.11 Wash bottle, fitted with spray nozzle, suitable for use with heptane.
6.12 Top load balance, capable of weighing 1 500 g to the nearest 0,1 g.
6.13 Vacuum source, capable of maintaining an absolute pressure of 2 kPa to 5 kPa inside the filtration
apparatus (see Figure 1).
5
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oSIST prEN 12662:2012
prEN 12662:2012
6.14 Suitable clean sample containers and sampling vessels.
6.15 Stopwatch, capable of measuring 30 min ± 1 min.
Key
1 wire to ground 4 filter holder 7 safety flask
2 clamp 5 receiving flask 8 vacuometer
3 funnel 6 vacuum tubing 9 to vacuum pump
Figure 1 — Apparatus for determining contamination
7 Preparation of sample containers and apparatus
IMPORTANT — Due to the extremely low levels of material being measured, it is essential that this testing
is performed in a clean environment to minimise the possibility of contamination.
7.1 Clean strictly, in the manner described in 7.2 to 7.7, all the surfaces of all components of the sample
containers (after removal of any labels, tags, etc.), sampling vessels, and parts of the apparatus that are:
a) l
...
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