EN 13991:2024
(Main)Derivatives from coal pyrolysis - Coal tar based oils: creosotes - Specifications and test methods
Derivatives from coal pyrolysis - Coal tar based oils: creosotes - Specifications and test methods
This document specifies the requirements and the test methods for creosotes for industrial wood preservation.
Different grades of creosote are used depending on the desired properties of the treated wood.
WARNING — The use of this document can involve hazardous materials, operations and equipment. This document cannot address all of the safety implications associated with its use. It is the responsibility of the user of this document to establish appropriate health and safety practices and assess the applicability of regulatory limitations prior to use. The warnings to use are covered in Annex C.
Derivate der Kohlenpyrolyse - Öle aus Steinkohlenteer: Kreosot - Anforderungen und Prüfverfahren
Dieses Dokument legt die Anforderungen und Prüfverfahren für Kreosotöle für industriellen Holzschutz fest.
In Abhängigkeit von den gewünschten Eigenschaften des behandelten Holzes werden verschiedene Kreosotöltypen verwendet.
WARNUNG — Die Anwendung dieses Dokumentes kann den Einsatz gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Dieses Dokument kann nicht alle mit seiner Anwendung verbundenen Sicherheitsprobleme ansprechen. Es liegt in der Verantwortung des Anwenders dieses Dokumentes, vor der Verwendung angemessene Gesundheits- und Sicherheitsmaßnahmen festzulegen und die Anwendbarkeit regulatorischer Einschränkungen zu bewerten. Die Anwendungswarnungen werden in Anhang C behandelt.
Produits dérivés de la pyrolyse du charbon - Huiles de goudron de houille: créosotes - Spécifications et méthodes d'essai
Le présent document spécifie les exigences et les méthodes d’essai pour les créosotes utilisées dans l’industrie de préservation du bois.
Les créosotes employées sont classées en fonction des propriétés attendues du bois traité.
AVERTISSEMENT — Le présent document peut impliquer l’utilisation de produits et la mise en œuvre de modes opératoires et d’appareillages à caractère dangereux. Le présent document n’a pas pour but d’aborder tous les problèmes de sécurité liés à son utilisation. Il incombe à l’utilisateur du présent document d’établir, avant de l’utiliser, des pratiques d’hygiène et de sécurité et de déterminer l’applicabilité des restrictions réglementaires. Les avertissements pour l’utilisation sont traités à l’Annexe C.
Derivati pri pirolizi premoga - Olja iz premogovega katrana: kreozoti - Specifikacije in metode preskušanja
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13991:2022
01-marec-2022
Derivati pri pirolizi premoga - Olja iz premogovega katrana: kreozoti - Specifikacije
in metode preskušanja
Derivatives from coal pyrolysis - Coal tar based oils: creosotes - Specifications and test
methods
Derivate der Kohlenpyrolyse - Öle aus Steinkohlenteer: Kreosot - Anforderungen und
Prüfverfahren
Produits dérivés de la pyrolyse du charbon - Huiles de goudron de houille: Créosotes -
Spécifications et méthodes d'essai
Ta slovenski standard je istoveten z: prEN 13991
ICS:
75.160.10 Trda goriva Solid fuels
oSIST prEN 13991:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 13991:2022
oSIST prEN 13991:2022
DRAFT
EUROPEAN STANDARD
prEN 13991
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2022
ICS 71.100.50; 75.140 Will supersede EN 13991:2003
English Version
Derivatives from coal pyrolysis - Coal tar based oils:
creosotes - Specifications and test methods
Produits dérivés de la pyrolyse du charbon - Huiles de Derivate der Kohlenpyrolyse - Öle aus Steinkohlenteer:
goudron de houille: Créosotes - Spécifications et Kreosot - Anforderungen und Prüfverfahren
méthodes d'essai
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 317.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13991:2022 E
worldwide for CEN national Members.
oSIST prEN 13991:2022
prEN 13991:2022 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Sampling . 4
5 Specifications and test methods . 5
Annex A (normative) Determination of the crystallization temperature of coal tar oil . 6
A.1 Scope . 6
A.2 Sampling . 6
A.3 Apparatus: an example of the apparatus is given in Figure A.1 . 6
A.4 Procedure. 6
A.5 Test report . 7
Annex B (normative) Determination of the distillation range of coal tar oil . 8
B.1 Scope . 8
B.2 Sampling . 8
B.3 Apparatus . 8
B.4 Preparing the distillation . 8
B.5 Method (see Figures B.4 to B.5) . 9
B.6 Test report . 9
Annex C (informative) Warning to use . 14
C.1 Composition - Data on components . 14
C.2 First aid measures. 14
C.3 Handling and storage . 14
C.4 Disposal considerations. 15
Bibliography . 16
oSIST prEN 13991:2022
prEN 13991:2022 (E)
European foreword
This document (prEN 13991:2022) has been prepared by Technical Committee CEN/TC 317 “Derivatives
from coal from pyrolysis”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13991:2003.
A revision is required due to legal changes to the marketing of Creosote oils in Europe. According to Regulation
1907/2006/EC (Annex XVII, Entry 31, Restrictions), only Creosote oils with a benzo[a]pyrene content below
50 mg/kg may be placed on the market in Europe. This means that grade A quality with a benzo[a]pyrene
content below 500 mg/kg is no longer allowed to stay on the market and is therefore deleted from the
standard.
Annexes A and B are normative. Annex C is informative.
oSIST prEN 13991:2022
prEN 13991:2022 (E)
1 Scope
This document gives the specifications and the test methods for creosotes for industrial wood preservation.
Different grades of creosote are used depending on the desired properties of the treated wood.
WARNING — The use of this document may involve hazardous materials, operations and equipment. This
document cannot address all of the safety implications associated with its use. It is the responsibility of the
user of this document to establish appropriate health and safety practices and assess the applicability of
regulatory limitations prior to use. The warnings to use are covered in Annex C.
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.
EN 1014-1, Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis -
Part 1: Procedure for sampling creosote
EN 1014-3, Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis -
Part 3: Determination of the benzo[a]pyrene content of creosote
EN 1014-4, Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis -
Part 4: Determination of the water-extractable phenols content of creosote
EN 15529, Derivatives from coal pyrolysis - Terminology
BS 144:1997, Coal tar creosote for wood preservation
EN ISO 2719, Determination of flash point - Pensky-Martens closed cup method (ISO 2719)
ISO 386, Liquid-in-glass laboratory thermometers — Principles of design, construction and use
ISO 760, Determination of water — Karl Fischer method (General method)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15529 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 https://www.electropedia.org/
4 Sampling
Samples for the assessment of the parameters listed in Table 1 shall be taken in accordance with EN 1014-1.
oSIST prEN 13991:2022
prEN 13991:2022 (E)
5 Specifications and test methods
Specifications for creosote grade B and C and the relevant test methods are given in Table 1.
Grade B is intended for pressure impregnation. In contrast to grade A, the distillation residue is lowered in
order to reduce the benzo[a]pyrene content. It is especially suitable for treatment of poles for overhead power
and telecommunication lines, and for structural timbers where bleeding in service can occur.
Grade C excludes the lower boiling fraction allowable in the other types of creosote and because of the low
volatility a reduction in odour is achieved.
Grade B and grade C are suitable for the hot-and-cold open-tank process.
Creosote in use should not contain more than 3 % of water.
Table 1 — Specifications for creosote grade B and C
Parameters Grade B Grade C Test Method
3 a 1,020 to 1,030 to BS 144 Annex B
Density (kg/m ) at 20/4 °C
1,150 1,170
Water content (m/m) % max. 1 max. 1 b
ISO 760
Crystallization temperature max. 23 max. 50 Annex A
(°C)
Water-extractable phenols max. 3 max. 3 EN 1014-4
(m/m) %
Insoluble matter in toluene max. 0,4 max. 0,4 BS144 Annex G
(m/m) %
Boiling range (volume) % Annex B
Distillate to 235 °C max. 20 -
Distillate to 300 °C 40-60 max. 10
Distillate to 355 °C min.70 min. 65
Benzo[a]pyrene content max. 50 max. 50 EN 1014-3
(mg/kg)
Flash point (°C) min. 61 min. 61 EN ISO 2719
NOTE According to Regulation 1907/2006 / EC (Annex XVII, entry 31, Restrictions) only creosote
oils with a Benzo[a]pyrene content lower than 50 mg/kg may be marketed in Europe. This means that
former grade A quality with a Benzo[a]pyrene content of max. 500 mg/kg is no longer allowed to stay
on the market. Grade A was therefore deleted.
a
The density is determined at a temperature above the crystallization temperature. For each degree Celsius
above 20 °C, a fixed value of 0,7 kg/m is added to the density reading.
b
As an alternative, the distillation method of ISO 3733 can be used.
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prEN 13991:2022 (E)
Annex A
(normative)
Determination of the crystallization temperature of coal tar oil
A.1 Scope
This method describes the procedure for the determination of the crystallization temperature of coal tar oil
and is applicable to creosote, carbolineum, carbon black feedstock, fluxing oils and other coal tar based oils.
A.2 Sampling
Sampling shall follow the procedures described in EN 1014-1.
A.3 Apparatus: an example of the apparatus is given in Figure A.1
A.3.1 Porcelain dish, top diameter (105 ± 5) mm, height (60 ± 5) mm, capacity ca. 300 ml.
A.3.2 Porcelain dish, flat shape, diameter (250 ± 10) mm, capacity ca. 2 000 ml.
A.3.3 Electric heating plate, 500 W to 1 000 W.
A.3.4 Thermometer, 0 °C to 100 °C, graduated in 0,5 °C as described in ISO 386.
A.3.5 Metal support ring.
A.4 Procedure
Heat the sample until completely free of crystals. The temperature shall be at least 10 °C above the specified
maximum crystallization temperature.
Pour (150 ± 5) ml of the so prepared oil into the small porcelain dish.
Place the dish with oil on the support ring in the larger dish and fill the latter with water at a temperature
about 10 °C lower than the specified maximum crystallization temperature.
The water surface shall be (10 ± 2) mm above the oil surface in the smaller dish.
Stir the oil gently with the thermometer, the oil shall be crystal free at the temperature indicated in Table 1.
If it is required to know the crystallization temperature, repeat the determination with water at a lower
temperature. Use some ice when necessary.
The temperature at which crystal formation starts is the crystallization temperature.
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prEN 13991:2022 (E)
A.5 Test report
The test report shall at least include the following:
— type of tar oil ;
— references of sample ;
— the reference to this document, i.e. EN 13991;
— the date of determination ;
— the name of the operator ;
— the result of the determination, (Pass or Fail), the crystallization temperature if required, expressed in
degrees Celsius;
— any particular points observed in the course of the sampling procedure and the test procedure.
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