EN 13763-18:2025
(Main)Explosives for civil uses - Detonators and detonating cord relays - Part 18: Verification of the series firing current of electric detonators
Explosives for civil uses - Detonators and detonating cord relays - Part 18: Verification of the series firing current of electric detonators
This document specifies a method to determine the series firing current of electric detonators. This document is applicable to explosives for civil uses.
Explosivstoffe für zivile Zwecke - Zünder und Sprengschnurverzögerer - Teil 18: Überprüfung des Serienzündstromes elektrischer Zünder
Dieses Dokument legt ein Verfahren für die Bestimmung des Serienzündstromes elektrischer Zünder fest. Dieses Dokument gilt für Explosivstoffe für zivile Zwecke.
Explosifs à usage civil - Détonateurs et relais pour cordeau détonant - Partie 18: Vérification du courant d'allumage en série de détonateurs électriques
Le présent document spécifie une méthode de vérification du courant d’allumage en série des détonateurs électriques.
Le présent document ne s’applique pas aux détonateurs non électriques, électroniques, pyrotechniques ou semi-finis.
Le présent document ne s’applique pas aux tubes à transmission d’ondes de choc, aux fils d’amorce, aux connecteurs de surface, aux relais pour cordeau détonant, aux manchons d’accouplement et aux systèmes d’amorçage électroniques.
Eksplozivi za civilno uporabo - Detonatorji in zakasnilniki - 18. del: Preverjanje serijskega vžigalnega toka električnih detonatorjev
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2025
Eksplozivi za civilno uporabo - Detonatorji in zakasnilniki - 18. del: Preverjanje
serijskega vžigalnega toka električnih detonatorjev
Explosives for civil uses - Detonators and detonating cord relays - Part 18: Verification of
the series firing current of electric detonators
Explosivstoffe für zivile Zwecke - Zünder und Sprengschnurverzögerer - Teil 18:
Überprüfung des Serienzündstromes elektrischer Zünder
Explosifs à usage civil - Détonateurs et relais pour cordeau détonant - Partie 18:
Vérification du courant d'allumage en série de détonateurs électriques
Ta slovenski standard je istoveten z: EN 13763-18:2025
ICS:
71.100.30 Eksplozivi. Pirotehnika in Explosives. Pyrotechnics and
ognjemeti fireworks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 13763-18
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2025
EUROPÄISCHE NORM
ICS 71.100.30 Supersedes EN 13763-18:2003
English Version
Explosives for civil uses - Detonators and detonating cord
relays - Part 18: Verification of the series firing current of
electric detonators
Explosifs à usage civil - Détonateurs et relais pour Explosivstoffe für zivile Zwecke - Zünder und
cordeau détonant - Partie 18: Vérification du courant Sprengschnurverzögerer - Teil 18: Überprüfung des
d'allumage en série de détonateurs électriques Serienzündstromes elektrischer Zünder
This European Standard was approved by CEN on 29 September 2025.
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, 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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13763-18:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Apparatus . 5
)
6 Preparation of test sample . 6
7 Procedure . 6
7.1 General. 6
7.2 Current interruption test . 6
7.3 Series firing test . 7
8 Expression of results . 8
9 Test report . 8
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/28/EU relating to the making available on the market and
supervision of explosives for civil uses aimed to be covered . 9
Bibliography . 10
European foreword
This document (EN 13763-18:2025) has been prepared by Technical Committee CEN/TC 321 “Explosives
for civil uses”, the secretariat of which is held by UNE.
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 April 2026, and conflicting national standards shall be
withdrawn at the latest by April 2026.
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.
This document supersedes EN 13763-18:2003.
EN 13763-18:2003:
a) the document title has been changed from “Detonators and relays — Part 18: Determination of series
firing current of electric detonators” to “Detonators and detonating cord relays — Part 18:
Verification of series firing current of electric detonators”;
b) the Introduction has been removed;
c) the Scope has been revised to clarify the covered and not covered explosives;
d) the normative references have been updated;
e) Clause 4 “Principle” has been added;
f) the clause “Apparatus” has been revised;
g) the clause “Test pieces” is now called “Preparation of test sample” and the possibility is now
considered that the fuse head differs between instantaneous and delay detonators in a delay series;
h) the clause “Procedure” has been restructured, revised and further detailed;
i) the expression “current breakage time” has been replaced by “current interruption time”;
j) Clause 8 “Expression of results” has been added;
k) the clause “Test report” does no longer require conformity with EN ISO/IEC 17025 and the
information to be provided has been revised;
l) former Annex A “Range of applicability of the test method” has been removed;
m) Annex ZA has been updated;
n) the Bibliography has been added and lists EN ISO/IEC 17025:2017.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
A list of all parts in the EN 13763 series, published under the general title Explosives for civil uses —
Detonators and detonating cord relays, can be found on the CEN website.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, 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, Türkiye and the United
Kingdom.
1 Scope
This document specifies a method for the verification of the series firing current of electric detonators.
This document does not apply to non-electric detonators, electronic detonators, plain detonators, semi-
finished detonators.
This document does not apply to shock tubes, leading wires, surface connectors, detonating cord relays,
coupling accessories and electronic initiation systems.
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 13763-1:2025, Explosives for civil uses — Detonators and detonating cord relays — Part 1:
Requirements
EN 13857-1:2025, Explosives for civil uses — Part 1: Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13857-1:2025 apply.
ISO and IEC maintain terminology 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 Principle
During blasting using electric detonators, the detonators are usually connected in series. The applied
current for the initiation of the detonators needs to initiate all fuse heads within a given time, which is
only possible if the bridge wires of all detonators are intact. For avoiding misfires the specified series
firing current has to be appropriate.
For the verification of the series firing current specified for an electric detonator, two tests are carried
out. In the first step, it is determined whether and at what time the applied current is interrupted during
the applied pulse duration. Considering the results of the first step, in a second step it is verified that the
specified series firing current initiates five test pieces connected in series.
5 Apparatus
5.1 Current source, capable of producing square current pulses with a current value of the series firing
current, I , as specified for the tested electric detonator in accordance with EN 13763-1:2025, 4.2.1.4,
S
with a current overshoot of ≤ 10 % and pulse durations as specified in Clause 7. The duration of the
current overshoot shall be ≤ 1 ms on pure resistive load. The rise time, i.e. from 10 % up to 90 % of the
adjusted amplitude, and the fall time, i.e. from 90 % down to 10 % of the adjusted amplitude, of the square
pulse shall be ≤ 50 μs. The maximum permissible uncertainty of the amplitude shall be ± 1,0 %.
5.2 Current interruption time measuring device, capable of being connected either to the current
source (5.1) or the leading wires of a test piece for measuring the time interval between the start of the
current pulse and the interruption or the stop of the current pulse. The time measuring device shall have
a resolution of 10 μs and a permissible uncertainty of ≤ 0,1 ms.
1)
6 Preparation of test sample
In case of instantaneous electric detonators not forming part of a delay series, 80 test pieces shall be
selected.
In case of electric detonators forming a delay series consisting of instantaneous detonators and delay
detonators where the fuse head of all detonators has the same design as specified in accordance with
EN 13763-1:2025, 4.2.1.6, 80 test pieces of the instantaneous detonators shall be selected.
In case of electric detonators forming a delay series consisting of instantaneous detonators and delay
detonators where the fuse head of the instantaneous detonators and of the delay detonators do not have
the same design as specified in accordance with EN 13763-1:2025, 4.2.1.6, 80 test pieces of the
instantaneous detonators and 100 test pieces of the delay detonators having the shortest delay time as
specified in accordance with EN 13763-1:2025, 4.2.1.6, shall be selected.
In case of electric detonators forming a delay series consisting of delay detonators only, 100 test pieces
of the detonators having the shortest delay time as specified in accordance with EN 13763-1:2025, 4.2.16,
shall be selected.
7 Procedure
7.1 General
Testing shall be done at a temperature within the temperature range of use as specified in accordance
with EN 13763-1:2025, 4.2.1.1.
7.2 Current interruption test
Adjust the current amplitude of the current source (5.1) to the value of the series firing current, I , as
S
specified in accordance with EN 13763-1:2025, 4.2.1.4. Select a value of the pulse duration t in
p
accordance with Formula (1). Record the chosen value.
W
AF
t ≥⋅5 (1)
p
I
S
where
is the pulse duration to be chosen, in s;
t
p
is the all-fire impulse as specified in accordance with EN 13763-1:2025, 4.2.1.4, in J/Ω;
W
AF
is the series firing current as specified in accordance with EN 13763-1:2025, 4.2.1.4, in A.
I
S
Take a test piece and connect it to the current source (5.1). Connect the current interruption time
measuring device (5.2) to the current source or the leading wires of the test piece.
Apply the current I with the pulse duration t . Measure the time, t , between the start of the current
S p int
pulse and the interruption of current and record it. Observe whether the test piece detonates.
NOTE An interruption of the current pulse can either happen due to a
...
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