SIST EN ISO 3016:2019

SLOVENSKI STANDARD
SIST EN ISO 3016:2019
01-julij-2019
Nadomešča:
SIST ISO 3016:1996
Naftni in sorodni proizvodi iz naravnih ali sintetičnih virov - Določevanje točke
tečenja (ISO 3016:2019)
Petroleum and related products from natural or synthetic sources - Determination of pour
point (ISO 3016:2019)
Mineralölerzeugnisse und verwandte Produkte mit natürlichem oder synthetischem
Ursprung - Bestimmung des Pourpoints (ISO 3016:2019)
Produits pétroliers et dérivés - Détermination du point d'écoulement (ISO 3016:2019)
Ta slovenski standard je istoveten z: EN ISO 3016:2019
ICS:
75.080 Naftni proizvodi na splošno Petroleum products in
general
SIST EN ISO 3016:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 3016:2019

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SIST EN ISO 3016:2019


EN ISO 3016
EUROPEAN STANDARD

NORME EUROPÉENNE

May 2019
EUROPÄISCHE NORM
ICS 75.080
English Version

Petroleum and related products from natural or synthetic
sources - Determination of pour point (ISO 3016:2019)
Produits pétroliers et connexes d'origine naturelle ou Mineralölerzeugnisse und verwandte Produkte mit
synthétique - Détermination du point natürlichem oder synthetischem Ursprung -
d'écoulement(ISO 3016:2019) Bestimmung des Pourpoints (ISO 3016:2019)
This European Standard was approved by CEN on 23 March 2019.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3016:2019 E
worldwide for CEN national Members.

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SIST EN ISO 3016:2019
EN ISO 3016:2019 (E)
Contents Page
European foreword . 3

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SIST EN ISO 3016:2019
EN ISO 3016:2019 (E)
European foreword
This document (EN ISO 3016:2019) has been prepared by Technical Committee ISO/TC 28 "Petroleum
and related products, fuels and lubricants from natural or synthetic sources" in collaboration with
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 2019, and conflicting national standards
shall be withdrawn at the latest by November 2019.
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 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 3016:2019 has been approved by CEN as EN ISO 3016:2019 without any modification.

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SIST EN ISO 3016:2019

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SIST EN ISO 3016:2019
INTERNATIONAL ISO
STANDARD 3016
Third edition
2019-04
Petroleum and related products
from natural or synthetic sources —
Determination of pour point
Produits pétroliers et connexes d’origine naturelle ou synthétique —
Détermination du point d'écoulement
Reference number
ISO 3016:2019(E)
©
ISO 2019

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SIST EN ISO 3016:2019
ISO 3016:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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SIST EN ISO 3016:2019
ISO 3016:2019(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Sampling . 3
7 Procedure. 4
8 Expression of results . 6
9 Precision . 6
9.1 General . 6
9.2 Lubricating oils . 6
9.2.1 General. 6
9.2.2 Repeatability . 6
9.2.3 Reproducibility . 6
9.3 Middle distillate and residual fuels . 6
9.3.1 General. 6
9.3.2 Repeatability . 7
9.3.3 Reproducibility . 7
10 Test report . 7
Annex A (normative) Specifications of temperature measuring devices . 8
Annex B (informative) Commonly used chemicals and freezing mixtures .10
Annex C (informative) Actual derived precision values .11
Bibliography .12
© ISO 2019 – All rights reserved iii

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SIST EN ISO 3016:2019
ISO 3016:2019(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 28, Petroleum and related products, fuels
and lubricants from natural or synthetic sources.
This third edition cancels and replaces the second edition (ISO 3016:1994), which has been technically
revised. The main changes compared to the previous edition are as follows:
— inclusion of digital contact thermometer in 5.2.1;
— update of normative references in Clause 2;
[1]
— chemicals and mixtures moved from former Clause 4 to Annex B (alignment with ISO 3015 );
[2]
— bath and sample temperature ranges have been aligned with ASTM D97 , changes in bath
temperature and the temperatures at which the test jars are moved to the batch with the next lower
temperature have over the years (1994 up to the time of publication of this document) not led to
observation of a bias versus test results obtained with the former edition;
— option for using automatic apparatus has been removed as being non-applicable;
— automated apparatus no longer being addressed as its use is at the discretion of the laboratory and
the precision does not apply to that equipment;
— addition of sampling instructions in Clause 6;
[2]
— alignment of Clause 9 on precision, with ASTM D97 and introduction of Annex C;
— addition of a Bibliography.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved

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SIST EN ISO 3016:2019
INTERNATIONAL STANDARD ISO 3016:2019(E)
Petroleum and related products from natural or synthetic
sources — Determination of pour point
WARNING — The use of this document can involve hazardous materials, operations and
equipment. This document does not purport to address all of the safety problems associated
with its use. It is the responsibility of the users of this document to take appropriate measures
to ensure the safety and health of personnel prior to the application of this document, and to
determine the applicability of any other restrictions.
1 Scope
This document specifies a method for the determination of the pour point of petroleum products. A
separate procedure suitable for the determination of the lower pour point of fuel oils, heavy lubricant
base stock, and products containing residual fuel components is also described.
The procedure described in this document is not suitable for crude oils.
NOTE There is equipment available that uses an automated procedure similar to the one described in this
1)
document. However, the precision thereof has not been established .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
ISO 3170, Petroleum liquids — Manual sampling
ISO 3171, Petroleum liquids — Automatic pipeline sampling
ASTM D7962, Practice for Determination of Minimum Immersion Depth and Assessment of Temperature
Sensor Measurement Drift
ASTM E2877, Guide for Digital Contact Thermometers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
pour point
lowest temperature at which a sample of petroleum product will continue to flow when it is cooled
under specified standard conditions
1) ISO develops an automated test method standard.
© ISO 2019 – All rights reserved 1

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SIST EN ISO 3016:2019
ISO 3016:2019(E)

4 Principle
After preliminary heating, the sample is cooled at a specified rate and examined at intervals of 3 °C
for flow characteristics. The lowest temperature at which movement ('pour' or 'flow') of the sample is
observed is recorded as the pour point.
5 Apparatus
5.1 Test jar, cylindrical, of clear glass, flat-bottomed, 33,2 mm to 34,8 mm outside diameter and
115 mm to 125 mm in height. The test jar shall have an inside diameter of 30,0 mm to 32,4 mm, with
the constraint that the wall thickness be no greater than 1,6 mm. The jar shall be marked with a line to
indicate a contents level 54 mm ± 3 mm above the inside bottom representing 45 ml ± 1 ml. See Figure 1.
5.2 Temperature measuring device, one of the following:
5.2.1 Digital contact thermometer (DCT), meeting the requirements specified in A.1.
5.2.2 Liquid-in-glass thermometers, partial immersion type conforming to the specifications
given in A.2.
Since separation of liquid column thermometers occasionally occurs and may escape detection,
thermometers should be checked immediately prior to the test and used only if they prove accurate
within ± 1 °C (for example ice point).
5.3 Cork, to fit the test jar, bored centrally for the test temperature measuring device.
5.4 Jacket, watertight, cylindrical metal, flat-bottomed, 115 mm ± 3 mm in depth with inside diameter
44,2 mm to 45,8 mm, and a wall thickness of approximately 1 mm. It shall be supported in a vertical
position in the cooling bath (5.7) so that no more than 25 mm projects out of the cooling medium, and
shall be capable of being cleaned.
5.5 Disc, of cork or felt approximately 6 mm in thickness, to fit loosely inside the jacket.
5.6 Gasket, ring form, approximately 5 mm in thickness, to fit snugly on the outside of the test jar and
loosely inside the jacket. This gasket shall be made of rubber, leather or other suitable material, elastic
enough to cling to the test jar and hard enough to hold its shape.
NOTE The purpose of the ring gasket is to prevent the test jar from touching the jacket.
5.7 Cooling baths, maintained at prescribed temperatures with a firm support to hold the jacket
vertical. The required bath temperatures may be obtained by refrigeration if available, otherwise by
suitable cooling mixtures. Cooling mixtures commonly used for bath temperatures are given in Annex B.
5.8 Timing device, capable of measuring up to 30 s with an accuracy of 0,2 s.
2 © ISO 2019 – All rights reserved

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