FprEN 13631-4
(Main)Explosives for civil uses - Explosives for blasting, boosters and explosive substances - Part 4: Verification of the insensitiveness to impact of explosives for blasting and explosive substances
Explosives for civil uses - Explosives for blasting, boosters and explosive substances - Part 4: Verification of the insensitiveness to impact of explosives for blasting and explosive substances
This European Standard specifies a method for determining the sensitiveness to impact of explosives.
Explosivstoffe für zivile Zwecke - Explosivstoffe - Teil 4: Bestimmung der Schagempfindlichkeit von Explosivstoffen
Explosifs à usage civil - Explosifs - Partie 4: Détermination de la sensibilité à l'impact des explosifs
Eksplozivi za civilno uporabo – Razstreliva – 4. del: Ugotavljanje občutljivosti razstreliv na udarec
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2021
Eksplozivi za civilno uporabo – Razstreliva – 4. del: Ugotavljanje občutljivosti
razstreliv na udarec
Explosives for civil uses - High explosives - Part 4: Determination of sensitiveness to
impact of explosives
Explosivstoffe für zivile Zwecke - Sprengstoffe - Teil 4: Bestimmung der
Schagempfindlichkeit von Explosivstoffen
Explosifs à usage civil - Explosifs - Partie 4: Détermination de la sensibilité au choc des
explosifs
Ta slovenski standard je istoveten z: prEN 13631-4
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 13631-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 71.100.30 Will supersede EN 13631-4:2002
English Version
Explosives for civil uses - Explosives - Part 4:
Determination of sensitiveness to impact of explosives
Explosifs à usage civil - Explosifs - Partie 4: Explosivstoffe für zivile Zwecke - Explosivstoffe - Teil
Détermination de la sensibilité à l'impact des explosifs 4: Bestimmung der Schagempfindlichkeit von
Explosivstoffen
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 13631-4:2021 E
worldwide for CEN national Members.
prEN 13631-4:2021 (E)
Contents
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Apparatus . 4
6 Test pieces . 9
6.1 Solid substances which are easily broken up or in powdered form . 9
6.2 Plastic bonded substances and other solids which are not easily broken up . 9
6.3 Paste-like and gel-type substances . 9
6.4 Liquid substances . 9
7 Procedure . 9
7.1 Preparation of the impact device . 9
7.2 Determination . 10
8 Test report . 11
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 . 12
Bibliography . 13
prEN 13631-4:2021 (E)
European foreword
This document (prEN 13631-4:2021) 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 for the CEN Enquiry.
This document will supersede EN 13631-4:2002.
In comparison with the previous edition, the following technical modifications have been made:
a) the main element of the document’s title has been changed from “High explosives” to “Explosives”;
b) the normative references have been updated;
c) Annex A, Range of applicability of the test method, has been removed;
d) 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 13631, Explosives for civil uses — Explosives, is currently composed with the following parts:
— Part 1: Requirements
— Part 2: Determination of thermal stability of explosives
— Part 3: Determination of sensitiveness to friction of explosives
— Part 4: Determination of sensitiveness to impact of explosives
— Part 5: Determination of resistance of explosives to water
— Part 6: Determination of resistance of explosives to hydrostatic pressure
— Part 7: Determination of safety and reliability of explosives at extreme temperatures
— Part 10: Method for the verification of the means of initiation of explosives
— Part 11: Determination of transmission of detonation of explosives
— Part 13: Determination of density of explosives
— Part 14: Determination of velocity of detonation of explosives
prEN 13631-4:2021 (E)
1 Scope
This document specifies a method for determining the sensitiveness to impact of explosives.
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 ISO 683-17:2014, Heat-treated steels, alloy steels and free-cutting steels — Part 17: Ball and roller
bearing steels
EN ISO 4957:2018, Tool steels (ISO 4957:2018)
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
drop height
distance between the uppermost part of the impact device and the lower face of the striking head
immediately before the drop
3.2
impact energy
energy of the drop weight immediately before impact, calculated by multiplying the mass of the drop
weight by the drop height and by the acceleration due to gravity
Note 1 to entry: For practical purposes, the acceleration due to gravity is rounded to 10 m/s so that, for example,
with a drop weight of mass 1 kg and a drop height of 500 mm the impact energy is assumed to be 5 J.
4 Principle
A weight of known mass is dropped onto a sample of the explosive which is confined in a way that
during the impact of the weight no significant friction is applied to the explosive. The weight of the mass
and the drop height are chosen in such steps, that the impact energy is reduced in subsequent trials
until the lowest energy at which a reaction is obtained from at least one out of six trials is observed.
This energy level is the value of sensitiveness to impact.
Knowledge of the sensitiveness to impact of explosives is of paramount importance to control risks
during handling and to prevent inadvertent ignition.
5 Apparatus
5.1 Drop Hammer, (see Figure 1) consisting of a cast steel block with base, an anvil, a column, guides,
drop weights with release device, and an impact device. The column is made from a seamless drawn
steel tube. The support into which the column is fixed is bolted to the back of the steel block. The
dimensions of the anvil (5.2) and the intermediate anvil are given in Figure 2, which shows the
arrangement of the lower parts. The two guides which are fixed to the column by means of three cross-
prEN 13631-4:2021 (E)
pieces are fitted with a toothed rack to limit the re-bound of the drop weight (5.3) and a moveable
graduated scale for adjusting the drop height.
1)
NOTE An exa
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