SIST EN 13763-16:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Explosivstoffe für zivile Zwecke - Zünder und Verzögerungselemente - Teil 16: Bestimmung der VerzögerungsgenauigkeitExplosifs a usage civil - Détonateurs et relais - Partie 16: Détermination de la précision du retardExplosives for civil uses - Detonators and relays - Part 16: Determination of delay accuracy71.100.30Eksplozivi. PirotehnikaExplosives. PyrotechnicsICS:Ta slovenski standard je istoveten z:EN 13763-16:2003SIST EN 13763-16:2004en01-februar-2004SIST EN 13763-16:2004SLOVENSKI
STANDARD







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13763-16December 2003ICS 71.100.30English versionExplosives for civil uses - Detonators and relays - Part 16:Determination of delay accuracyExplosifs à usage civil - Détonateurs et relais - Partie 16:Détermination de la précision du retardExplosivstoffe für zivile Zwecke - Zünder undVerzögerungselemente - Teil 16: Bestimmung derVerzögerungsgenauigkeitThis European Standard was approved by CEN on 10 November 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13763-16:2003 E



EN 13763-16:2003 (E)2Contents pageForeword.3Introduction.51Scope.62Normative references.63Terms and definitions.64Test pieces.65Apparatus.66Procedure.77Expression of results.78Test report.7Annex A (informative)
Range of applicability of the test method.9Annex B (normative)
Calculation of results.10Annex C (informative)
Guidance for theoretical verification.14Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.19



EN 13763-16:2003 (E)3ForewordThis document (EN 13763-16:2003) has been prepared by Technical Committee CEN/TC 321 "Explosives for civiluses", the secretariat of which is held by AENOR.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by June 2004, and conflicting national standards shall be withdrawn at the latest byJune 2004.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Annexes A and C are informative. Annex B is normative.This European Standard is one of a series of standards with the generic title Explosives for civil uses – Detonatorsand relays. The other parts of this series are listed below:prEN 13763-1Part 1: RequirementsEN 13763-2Part 2: Determination of thermal stabilityEN 13763-3Part 3: Determination of sensitiveness to impactEN 13763-4Part 4: Determination of resistance to abrasion of leading wires and shock tubesEN 13763-5Part 5: Determination of resistance to cutting damage of leading wires and shock tubesEN 13763-6Part 6: Determination of resistance to cracking in low temperatures of leading wiresEN 13763-7Part 7: Determination of the mechanical strength of leading wires, shock tubes, connections,crimps and closuresEN 13763-8Part 8: Determination of the resistance to vibration of plain detonatorsEN 13763-9Part 9: Determination of resistance to bending of detonatorsEN 13763-11Part 11: Determination of resistance to damage by dropping of detonators and relaysEN 13763-12Part 12: Determination of resistance to hydrostatic pressureprEN 13763-13Part 13: Determination of resistance of electric detonators against electrostatic dischargeprEN 13763-15Part 15: Determination of equivalent initiating capabilityEN 13763-17Part 17: Determination of no-fire current of electric detonatorsEN 13763-18Part 18: Determination of series firing current of electric detonatorsEN 13763-19Part 19: Determination of firing impulse of electric detonatorsEN 13763-20Part 20: Determination of total electrical resistance of electric detonatorsEN 13763-21Part 21: Determination of flash-over voltage of electric detonators



EN 13763-16:2003 (E)4EN 13763-22Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leadingwiresEN 13763-23Part 23: Determination of the shock-wave velocity of shock tubeEN 13763-24Part 24: Determination of the electrical non-conductivity of shock tubeprEN 13763-25Part 25: Determination of transfer capability of surface connectors, relays and couplingaccessoriesprEN 13763-26Part 26: Definitions, methods and requirements for devices and accessories for reliable and safefunction of detonators and relaysCEN/TS 13763-27Part 27: Definitions, methods and requirements for electronic initiation systemsAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.



EN 13763-16:2003 (E)5IntroductionDuring blasting work, detonators and surface connectors with different delay times are used to ensure that thesequence of initiation of the explosive charges is executed in a controlled way. This test checks that the timeinterval between adjacent numbers in a manufacturer’s series of delay type detonators and surface connectors lieswithin specified limits designed to reduce the risk of overlapping.



EN 13763-16:2003 (E)61 ScopeThis European Standard specifies a method for determining the delay time accuracy of detonators and surfaceconnectors with pyrotechnic delay elements. It does not apply to those with an electronic time delay.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 13857-1, Explosives for civil uses — Part 1: Terminology.EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC17025:1999).3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 13857-1 and the following apply.3.1overlappingdetonation out of intended sequence3.2outliervalue in a series of measured values significantly outside the normal distribution of the series and causingsignificant overlapping probability to adjacent interval numbers4 Test piecesSelect 30 detonators or surface connectors of each interval number (i.e. nominal delay time stated by themanufacturer) from a specific type, having the same chemical composition, charge, dimensions and material ofconstruction. For non-electric types, the length of shock tube attached to the detonator/surface connector duringthe test shall be specified by the manufacturer.The detonators to be tested shall have an age of between two weeks and four months after the date of production.5 Apparatus5.1for electric detonators, a power source able to produce a continuous current (i) in accordance with themanufacturer’s specification and within is £
i
£ 2is
(is is the series firing current for the type of detonator inquestion) with an accuracy of ± 1,0 %.5.2for non-electric detonators/surface connectors, an initiating device for initiating shock tubes (percussioncap, spark or initiating detonator providing that the shock tube and measuring equipment are protected againstfragments from the detonator).5.3timer or oscilloscope to measure the delay time between the start pulse and the stop pulse with an accuracyof 0,1 ms.5.4means for providing a start pulse to the timer/oscilloscope consisting for example of:



EN 13763-16:2003 (E)7a) for electric detonators, an electric triggering circuit capable of providing an electric pulse at the time when theignition current is applied; orb) for non-electric detonators/surface connectors, an optical sensor or pressure sensor capable of providing anelectric pulse when the shock-wave of the shock tube passes the sensor.5.5means for providing a stop pulse to the timer/oscilloscope consisting for example of an optical sensor orpressure sensor capable of providing an electric pulse when the base charge (secondary charge) of thedetonator/surface connector is initiated.5.6 conditioning chamber, capable of maintaining a temperature in the range 15 °C to 30 °C within ± 2 °C.6 Procedure6.1ConditioningCondition the detonators or surface connectors in the conditioning chamber (see 5.6) for at least 2 h prior totesting, within ± 2 °C of a temperature specified by the manufacturer in the range 15 °C to 30 °C. In the case ofmagnetically coupled detonators, the transformer coupling unit shall be removed before testing.6.2DeterminationThe test shall be carried out within ± 2 °C of the conditioning temperature.Connect the detonators or surface connectors to the apparatus (see 5.4). For non-electric detonators or surfaceconnectors, install the optical start pulse sensor at the shock tube, at a distance specified by the manufacturer, butat least 1 000 mm from the initiation point at the end of the shock tube (if necessary after removing the endsealing). Insert the detonators or surface connectors in the apparatus (see 5.5) so as to obtain a stop pulse fromthe optical sensor or pressure sensor when the base charge (secondary charge) of the detonator or surfaceconnector is initiated.Initiate the detonators or surface connectors and record the individual delay times and the number of misfires.7 Expression of resultsCalculate the results of the tests according to B.1 to B.5.NOTEB.6 can optionally be used to present the results in B.1 and B.4 graphically.8 Test reportThe test report shall conform to EN ISO/IEC 17025. In addition, the following information shall be given:a) mean value of the delay times kt(in ms) and the standard deviation ks for each interval number (according toB.1);b) number of misfires;c) number of ”outlier” values for each interval number (according to B.3);d) except for surface connectors, the c-factor (ck) of each interval number (according to B.4);e) for surface connectors and non-electric detonators intended to be combined with surface connectors, the meandeviation from nominal delay time (rk) of each interval number (according to B.5);



EN 13763-16:2003 (E)8f) for surface connectors and non-electric detonators intended to be combined with surface connectors, themaximum deviation from the nominal delay time rk, max for each interval number k, specified by the manufacturer(indicated in the manufacturer’s user manual);g) nominal delay time knomt, for each interval number k, specified by the manufacturer (indicated in themanufacturer’s user manual);h) applied conditioning temperature during the tests.



EN 13763-16:2003 (E)9Annex A(informative)Range of applicability of the test methodRange of applicability of the test method: - 30 °C to + 80 °C (see NOTE)NOTEDue to the nature of pyrotechnics, the results of the delay time testing will vary with temperature. From theexperience from former national standards, testing is only carried out at one defined temperature, usually + 20 °C. However ifdifferent pyrotechnic charges are used in adjacent interval numbers, proper measures should be taken in order to ensure thatthe possible differences in temperature dependency of these charges will not cause a significant probability of overlapping athigh or low temperatures.



EN 13763-16:2003 (E)10Annex B(normative)Calculation of resultsB.1Calculation of mean delay time kt(in ms) and standard deviation ks;Calculate for ea
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