SIST EN 16701:2014
(Main)Energetic materials for Defence - Safety, vulnerability - Friability
Energetic materials for Defence - Safety, vulnerability - Friability
EN 16701 describes a method for assessing the deflagration to detonation transition (DDT) risk of an explosive material subjected to a mechanical threat. Testing applies to any compact solid explosive material.
Energetische Wehrmaterialien - Sicherheit, Verwundbarkeit - Sprödigkeit
Matériaux énergétiques de défense - Sécurité, vulnérabilité - Friabilité
La présente Norme européenne décrit une méthode d'évaluation du risque de transition de la déflagration vers la détonation (TDD) d'une matière explosive soumise à une agression mécanique.
L'épreuve s’applique à toute matière explosive solide compacte.
Energetski materiali za obrambo - Varnost, ranljivost - Krhkost
Standard EN 16701 opisuje metodo za oceno tveganja prehoda iz deflagracije v detonacijo (DDT) eksplozivnega materiala, na katerega vpliva mehanska grožnja. Preskušanje se uporablja za poljuben kompakten trden eksplozivni material.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Energetski materiali za obrambo - Varnost, ranljivost - KrhkostEnergetische Wehrmaterialien - Sicherheit, Verwundbarkeit - SprödigkeitMatériaux énergétiques de défense - Sécurité, vulnérabilité - FriabilitéEnergetic materials for Defence - Safety, vulnerability - Friability95.020Vojaška tehnika. Vojaške zadeve. OrožjeMilitary engineering. Military affairs. WeaponsICS:Ta slovenski standard je istoveten z:EN 16701:2014SIST EN 16701:2014en,fr,de01-september-2014SIST EN 16701:2014SLOVENSKI
STANDARD
SIST EN 16701:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16701
May 2014 ICS 71.100.30 English Version
Energetic materials for defence - Safety, vulnerability - Friability Matériaux énergétiques de défense - Sécurité, vulnérabilité - Friabilité
Energetische Wehrmaterialien - Sicherheit, Verwundbarkeit - Sprödigkeit This European Standard was approved by CEN on 10 April 2014.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16701:2014 ESIST EN 16701:2014
EN 16701:2014 (E) 2 Contents Page Foreword .3 Introduction .4 1 Scope .5 2 Normative references .5 3 Test method principle .5 4 Apparatus .5 4.1 Launching device.5 4.2 Fragment collection and impact device .5 4.3 Closed vessel .6 4.4 Measurement apparatus .6 4.4.1 Measurement of the impact velocity .6 4.4.2 Recording of the pressure when burning inside the closed vessel .6 5 Test specimen .7 6 Procedure .7 6.1 Performing a trial .7 6.1.1 Impact of the test specimen .7 6.1.2 Firing in the closed vessel .7 6.1.3 Using the burning results .8 6.2 Performing a test .8 7 Expression of results .9 8 Test report . 10 Annex A (informative)
Example of an experimental device . 11 Annex B (informative)
Description of the gun propellant device . 12 B.1 General . 12 B.2 Cartridge preparation . 12 Annex C (informative)
Example of a closed vessel . 13 Annex D (informative)
Example of a test report . 14 Annex E (informative)
Examples of results for typical Explosive Materials . 15 Bibliography . 16
SIST EN 16701:2014
EN 16701:2014 (E) 3 Foreword This document (EN 16701:2014) has been prepared by Technical Committee CEN/TC SS C20 “Explosives and firework”, the secretariat of which is held by CCMC. 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 November 2014 and conflicting national standards shall be withdrawn at the latest by November 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
SIST EN 16701:2014
EN 16701:2014 (E) 4 Introduction This document is derived from procedure SEN-216-01, promulgated by the Groupe d'Études des Modes Opératoires (French Test Procedures Study Group) in February 2003. Annexes known as “informative” are given for information purposes. Annexes A to E are informative. The term friability covers the notions of fragmentation following mechanical stress and burning vivacity of the fragments. SIST EN 16701:2014
EN 16701:2014 (E) 5 1 Scope This European Standard describes a method for assessing the deflagration to detonation transition (DDT) risk of an explosive material subjected to a mechanical threat. Testing applies to any compact solid explosive material. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NF T 70-714, Energetic materials for defence — Performance — Closed Vessel firing 3 Test method principle A cylinder of bare explosive material is projected against a flat steel plate, under normal incidence and according to its axis of revolution. The friability of the explosive material is characterised as a function of the impact velocity (IV), by the maximum value taken by the dP/dt function derived from the P(t) signal measured by burning the fragments collected following impact at a constant volume in a closed vessel. All of these operations are generally carried out at ambient temperature, unless otherwise specified. 4 Apparatus 4.1 Launching device The launching device shall be able to transmit to the sample, without damaging it, a velocity between 70 m/s and at least 200 m/s. For example, the following pneumatic launch device may be used, which includes (see general diagram in Annex A): — an air tank with a volume of 3,3 L, consisting of a tube with an inside diameter of 50 mm and outside diameter of 60 mm, equipped with a pneumatic control valve at each end. This tank is connected to a compressed air bottle used for establishing a pressure of 1,2 MPa; — a launcher tube with an inside diameter between 18,2 mm and 18,6 mm and a length of 1,50 m connected to the pneumatic valve by means of a connection ring. A gun propellant launch device may also be used; it consists of the following elements: — a test tube with a calibre 12 cylindrical core (inside diameter between 18,2 mm and 18,6 mm) and 70 mm counter boring, with an effective length of 700 mm; — a gun propellant cartridge whose description is given in Annex B. 4.2 Fragment collection and impact device This device includes (see Figure A.1): SIST EN 16701:2014
EN 16701:2014 (E) 6 — a flat steel plate with a diameter of 630 mm and 20 mm thick. The front face is machined with a roughness Ra 3,2 (see EN ISO 12085:1997, EN ISO 4287:1998, and EN ISO 1302:2002). This disk is fixed to a concrete wall; — a fragment collecting box consisting of a tube (for example made of PMMA.) with an inside diameter of 630 mm and a length of 1,50 m. The PMMA tube slots on to the impact disk. The other end of the tube is sealed using a PMMA disk in which a 100 mm square central hole has been made on the side in the cylinder's axis. NOTE An impact disk and a fragment collecting box with a diameter of 200 mm can be used for the characterisation of highly
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