FprEN 13763-19

SLOVENSKI STANDARD
01-april-2021
Eksplozivi za civilno uporabo – Detonatorji in zakasnilniki – 19. del: Ugotavljanje
vžignega impulza električnih detonatorjev
Explosives for civil uses - Detonators and relays - Part 19: Determination of firing impulse
of electric detonators
Explosivstoffe für zivile Zwecke - Zünder und Verzögerungselemente - Teil 19:
Bestimmung des Zündimpulses elektrischer Zünder
Explosifs à usage civil - Détonateurs et relais - Partie 19 : Détermination de l'impulsion
d'allumage des détonateurs électriques
Ta slovenski standard je istoveten z: prEN 13763-19
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.

DRAFT
EUROPEAN STANDARD
prEN 13763-19
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 71.100.30 Will supersede EN 13763-19:2003
English Version
Explosives for civil uses - Detonators and detonating cord
relays - Part 19: Determination of firing impulse of electric
detonators
Explosifs à usage civil - Détonateurs et relais pour Explosivstoffe für zivile Zwecke - Zünder und
cordeau détonant - Partie 19: Détermination de Sprengschnurverbinder - Teil 19: Bestimmung des
l'impulsion d'allumage des détonateurs électriques Zündimpulses elektrischer Zünder
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 321.
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13763-19:2021 E
worldwide for CEN national Members.

prEN 13763-19:2021 (E)
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 6
5 Apparatus . 6
5.1 Standard apparatus . 6
5.2 Alternative apparatus . 6
)
6 Preparation and handling of test samples and test pieces . 7
7 Procedure . 7
7.1 Test temperature . 7
7.2 Preliminary test . 7
7.2.1 Preliminary test with apparatus . 7
7.2.2 Preliminary test with alternative apparatus . 8
7.3 Determination with apparatus . 8
7.4 Determination with alternative apparatus . 8
8 Expression of results . 8
9 Test report . 9
Annex A (normative) Estimation of the normal standard deviation s from the range and
sample size . 10
Annex ZA (informative) Relationship between this European Standard and the essential
safety 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 . 11
Bibliography . 12

prEN 13763-19:2021 (E)
European foreword
This document (prEN 13763-19:2021) has been prepared by Technical Committee CEN/TC 321
“Explosives for civil uses”, the secretariat of which is held by UNE.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13763-19:2003.
In comparison with the previous edition, the following technical modifications have been made:
a) Clause 4, Principle, has been added;
b) Clause 7, Procedure, has been revised to adjust the statistical procedure and electrical parameters;
c) Clause 9, Test report, has been updated;
d) Annex A, Range of applicability of the test method, has been removed;
e) a new Annex A, Estimation of the normal standard deviation s from the range and sample size, has been
added;
f) Annex ZA has been updated.
This document has been prepared under a Standardization Request (M/562) annexed to the Commission
Implementing Decision C(2019)6634 final as regards Explosives for civil uses given to CEN by the
European Commission and the European Free Trade Association, and supports Essential Safety
requirements of Directive 2014/28/EU.
For relationship with Directive 2014/28/EU, see informative Annex ZA, which is an integral part of this
document.
EN 13763, Explosives for civil uses — Detonators and detonating cord relays, is currently composed with
the following parts:
— Part 1: Requirements
— Part 2: Verification of thermal stability
— Part 3: Determination of sensitiveness to impact
— Part 4: Determination of resistance to abrasion of leading wires and shock tubes
— Part 5: Determination of resistance to cutting damage of leading wires and shock tubes
— Part 6: Determination of resistance to cracking in low temperatures of leading wires
— Part 7: Determination of the mechanical strength of leading wires, shock tubes, connections, crimps and
closures
— Part 8: Determination of resistance to vibration
— Part 9: Determination of resistance to bending of detonators
prEN 13763-19:2021 (E)
— Part 11: Determination of drop resistance of detonators and relays
— Part 12: Determination of resistance to hydrostatic pressure
— Part 13: Determination of resistance of electric detonator to electrostatic discharge
— Part 15: Determination of equivalent initiating capability
— Part 16: Determination of delay accuracy
— Part 17: Determination of no-fire current of electric detonators
— Part 18: Determination of series firing current of electric detonators
— Part 19: Determination of firing pulse of electric detonators
— Part 20: Determination of total resistance of electric detonators
— Part 21: Determination of flash-over voltage of electric detonators
— Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leading wires
— Part 23: Determination of the shock-wave velocity of shock tube
— Part 24: Determination of the non-conductivity of shock tube
— Part 25: Determination of transfer capacity of relay and coupling accessories
— Part 26: Definitions, methods and requirements for devices and accessories for reliable and safe function
of detonators and relays
— Part 27: Definitions, methods and requirements for electronic initiation system
prEN 13763-19:2021 (E)
Introduction
At blasting it is very important from a safety perspective to be aware about the impulse required for
possible initiation of the detonators. To avoid inadvertent initiation, the shot-firer needs to get
information about the levels for all-fire current as well as the level for no-fire current.
prEN 13763-19:2021 (E)
1 Scope
This document specifies a method for determining the all-fire impulse and the no-fire impulse of electric
detonators.
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.
prEN 13857-1:2021, Explosives for civil uses — Part 1: Terminology
EN 13763-1:2004, Explosives for civil uses - Detonators and relays - Part 1: Requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 13857-1:2021, and the
following apply.
3.1
all-fire impulse
minimum electrical energy needed to initiate all of the detonators connected in series, divided by the total
resistance of the complete round
3.2
no-fire impulse
maximum electrical energy divided by the total resistance of the complete round, which, when delivered
in a short time, causes none of the detonators to initiate
4 Principle
The test piece is subjected to a current pulse of determined energy. Record whether initiation occurs. In
a first step the pulse for 50 % firing is determined as a starting point for a subsequent PROBIT test. With
the results of the latter the no-fire impulse and the all-fire impulse are calculated.
5 Apparatus
5.1 Standard apparatus
Square pulse current supply, with the following characteristics:
a) a stabilized current with a tolerance on the output of ± 1 % of the set value (see 7.3.2);
b) a square pulse with a tolerance of ± 1 % of the set duration (see 7.3.1);
c) a current overshoot of not more than 10 % of the set current and duration not greater than 50 μs (on
pure resistive load);
d) rise time for the current of not more than 50 μs (on pure resistive load).
5.2 Alternative apparatus
Alternatively, the following apparatus may be used: a capacitor, an adjustable DC voltage generator, an
adjustable resistor and a fast non-arcing and bounce-free current switch with the following
characteristics:
prEN 13763-19:2021 (E)
a) a capacitance (C) with a tolerance not greater than ± 5 % of the set value;
b) a voltage with a tolerance not greater than ± 1 % of the set value;
c) a resistance (R) with a tolerance not greater than ± 1 % of the set value.
The time constant (RC) of the circuit, which is calculated as the product of R, resistor, and C, capacitor,
shall be shorter than one tenth of the thermal time constant of the fuse head. The resistance of the circuit
should be varied.
1)
6 Preparation and handling of test samples and test pieces
Test samples for detonators should be handled according to EN ISO/IEC 17025:2017, 7.4.
Depending on the number of levels of the PBBS test (see EN 13763-1:2004, Annex C), 170 to 250
detonators of the same type are needed (i.e. same bridge wire ignition system). If the detonators form
part of a series with different delay times, select detonators with delay times distributed as evenly as
possible throughout the series.
NOTE For the purpose of the test, bare fuse heads can be used instead of complete detonators.
7 Procedure
7.1 Test temperature
Condition the detonators for at least 2 h at a temperature of (20 ± 5) °C and at a relative humidity not
greater than 60 % and carry out the test at the same temperature and humidity.
In the case where the test items show for one level only no-fire and for the next higher level only fire, the
t shall be calculated by taking the mean between these two levels and the standard deviation s shall be
0,5
calculated by using the interval between the two levels and the number of trials as given in the Annex A.
7.2 Preliminary test
7.2.1 Preliminary test with apparatus
Carry out a preliminary test (for example a Bruceton test), using 3
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