SIST EN 13763-16:2025

SLOVENSKI STANDARD
01-december-2025
Eksplozivi za civilno uporabo - Detonatorji in zakasnilniki - 16. del: Preverjanje
natančnosti zakasnitve električnih in neelektričnih detonatorjev, površinskih
konektorjev in zakasnilnikov
Explosives for civil uses - Detonators and detonating cord relays - Part 16: Verification of
delay time accuracy of electric and non-electric detonators, surface connectors and
detonating cord relays
Explosivstoffe für zivile Zwecke - Zünder und Sprengverzögerer - Teil 16: Überprüfung
der Verzögerungsgenauigkeit von elektrischen und nichtelektrischen Zündern,
Oberflächenverbindern und Sprengschnurverzögerern
Explosifs à usage civil - Détonateurs et relais pour cordeau détonant - Partie 16:
Vérification de la précision du temps de retard des détonateurs électriques et non
électriques, des connecteurs de surface et des relais pour cordeau détonant
Ta slovenski standard je istoveten z: EN 13763-16:2025
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 13763-16
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2025
EUROPÄISCHE NORM
ICS 71.100.30 Supersedes EN 13763-16:2003
English Version
Explosives for civil uses - Detonators and detonating cord
relays - Part 16: Verification of delay time accuracy of
electric and non-electric detonators, surface connectors
and detonating cord relays
Explosifs à usage civil - Détonateurs et relais pour Explosivstoffe für zivile Zwecke - Zünder und
cordeau détonant - Partie 16: Vérification de la Sprengverzögerer - Teil 16: Überprüfung der
précision du temps de retard des détonateurs Verzögerungsgenauigkeit von elektrischen und
électriques et non électriques, des connecteurs de nichtelektrischen Zündern, Oberflächenverbindern
surface et des relais pour cordeau détonant und Sprengschnurverzögerern
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 13763-16:2025 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
1)
6 Preparation of test sample . 6
7 Procedure . 6
7.1 Electric detonators, non-electric detonators and surface connectors . 6
7.2 Detonating cord relays . 7
8 Expression of results . 8
8.1 Electric and non-electric detonators . 8
8.2 Surface connectors and detonating cord relays . 8
9 Test report . 8
Annex A (normative) Calculation procedures . 10
A.1 Calculation of mean delay time and standard deviation . 10
A.2 Calculation of the adjusted nominal delay time and the adjusted nominal time difference
............................................................................................................................................................................. 10
2)
A.3 Test for outliers according to Grubbs test . 11
A.3.1 Outlier criteria for electric detonators and non-electric detonators . 11
A.3.2 Outlier criteria for surface connectors and detonating cord relays . 12
A.4 Calculation of c-factor for electric detonators and non-electric detonators . 12
A.5 Calculation of the mean deviation from nominal delay time . 13
A.6 Graphical representation using acceptance triangles . 13
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 . 15
Bibliography . 16

European foreword
This document (EN 13763-16:2025) 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 13763-16:2003.
EN 13763-16:2003:
a) the document title has been changed from “Detonators and relays — Part 16: Determination of delay
accuracy” to “Detonators and detonating cord relays — Part 16: Verification of delay time accuracy
of electric and non-electric detonators, surface connectors and detonating cord relays”;
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) the terminology entries 3.1 and 3.2 have been removed;
f) Clause 4 “Principle” has been added;
g) the clause “Apparatus” has been updated;
h) the clause “Test pieces” is now called “Preparation of test sample”, the number of test pieces per
nominal delay time has been reduced and the conditioning step has been moved there from the
Clause “Procedure”;
i) the clause “Procedure” has been revised and the specifications on the values to be calculated have
been moved from here;
j) Clause 8 “Expression of results” has been completely revised;
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) former Annex B “Calculation procedure” is now Annex A;
n) former Annex C “Guidance for theoretical verification” has been removed;
o) Annex ZA has been updated;
p) the Bibliography has been added and lists, e.g. 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 test method for the verification of the delay time accuracy of electric
detonators, non-electric detonators, surface connectors and detonating cord relays.
This document applies only to electric detonators, non-electric detonators, surface connectors and
detonating cord relays that are part of a delay series.
This document does not apply to electronic detonators, shock tubes and electronic initiation systems.
NOTE For a test method for the verification of the delay time accuracy of electronic initiation systems with
electronic detonators, see EN 13763-27:2025.
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 13630-1:2025, Explosives for civil uses — Detonating cords and safety fuses — Part 1: Requirements
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 work, non-electric detonators, electric detonators, surface connectors and detonating
cord relays with different delay times are used to initiate explosives in a sequence.
For the verification of the delay time accuracy, test pieces are initiated. The delay time is measured for
each test piece and then a statistical calculation is carried out to identify outliers.
5 Apparatus
5.1 Power source, for testing electric detonators, providing a constant current I with I ≤ I ≤ 2I with I
s s s
being the series firing current specified in accordance with EN 13763-1:2025, 4.2.1.4. The constant
current shall be provided with a maximum permissible uncertainty of ± 1,0 %.
5.2 Means of initiation, for testing non-electric detonators and surface connectors, as specified to the
tested explosive in accordance with EN 13763-1:2025, 4.3.1.4 (for non-electric detonator) and 4.7.1.4
(for surface connectors).
5.3 Two detonating cords and a detonator, for testing detonating cord relay test pieces. The
detonating cords shall be the ones that may be used for the tested detonating cord relay in accordance
with EN 13763-1:2025, 4.8. One detonating cords shall have a length ≥ 350 mm and the other shall have
a length ≥ 450 mm, plus the length needed for connecting the detonating cords to the detonating cord
relay. The detonator shall be specified as means of initiation for the detonating cord in accordance with
EN 13630-1:2025, 4.8.1.4.
5.4 Sensors connected to a time measuring device, for measuring the delay time. The sensors shall
be capable of detecting the reception of the initiation energy and detonation of the tested explosive and
of providing a start signal and a stop signal to the time measuring device. The time measuring device shall
...