BS-EN-13630-10-2005.pdf

BRITISH STANDARD BS EN 13630-10:2005 Explosives for civil uses Detonating cords and safety fuses Part 10: Determination of initiating capability of detonating cords The European Standard EN 13630-10:2005 has the status of a British Standard ICS 71.100.30 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13630-10:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 1 August 2005 © BSI 1 August 2005 ISBN 0 580 46246 3 National foreword This British Standard is the official English language version of EN 13630-10:2005. The UK participation in its preparation was entrusted to Technical Committee CII/61, Explosives for civil uses, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13630-10 May 2005 ICS 71.100.30 English version Explosives for civil uses - Detonating cords and safety fuses - Part 10: Determination of initiating capability of detonating cords Explosifs à usage civil - Cordeaux détonants et mèches de sûreté - Partie 10: Détermination de la capacité d'allumage des cordeaux détonants Explosivstoffe für zivile Zwecke - Sprengschnüre und Sicherheitsanzündschnüre - Teil 10: Bestimmung der Zündfähigkeit von Sprengschnüren This European Standard was approved by CEN on 25 March 2005. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13630-10:2005: E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 2 Contents Page Foreword3 1Scope 4 2Normative references4 3Terms and definitions .4 4Principle4 5Apparatus .4 6Test pieces .5 7Procedure .5 8Calculation of results 6 9Test report6 Annex A (informative) Range of applicability of the test method.7 Annex B (informative) Restriction of the test method.8 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives9 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 3 Foreword This European Standard (EN 13630-10:2005) has been prepared by Technical Committee CEN/TC 321 “Explosives for civil uses“, 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 or by endorsement, at the latest by November 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document is one of a series of standards with the generic title Explosives for civil uses Detonating cords and safety fuses. The other parts of this series are listed below: EN 13630-1 Part 1: Requirements EN 13630-2 Part 2: Determination of thermal stability of detonating cords and safety fuses EN 13630-3 Part 3: Determination of sensitiveness to friction of the core of detonating cords EN 13630-4 Part 4: Determination of sensitiveness to impact of detonating cords EN 13630-5 Part 5: Determination of resistance to abrasion of detonating cords EN 13630-6 Part 6: Determination of resistance to tension of detonating cords EN 13630-7 Part 7: Determination of reliability of initiation of detonating cords EN 13630-8 Part 8: Determination of resistance to water of detonating cords and safety fuses EN 13630-9 Part 9: Determination of transmission of detonation from detonating cord to detonating cord EN 13630-11 Part 11: Determination of velocity of detonation of detonating cords EN 13630-12 Part 12: Determination of burning duration of safety fuses According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 4 1 Scope This European Standard specifies a method for determining the initiating capability of flexible plastic-coated detonating cords and flexible fibrous-overbraided detonating cords, for civil use. It applies only to those detonating cords, having a maximum grammage of 40 g/m, that are used to initiate another detonating cord or a high explosive. NOTE The limitations of this method are described in Annex B. 2 Normative references The following referenced documents are indispensable for the application 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 13763-15, Explosives for civil uses - Detonators and relays Part 15: Determination of equivalent initiating capability EN 13857-1:2003, Explosives for civil uses Part 1: Terminology EN ISO 536, Paper and board Determination of grammage. (ISO 536:1995) EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories. (ISO/IEC 17025:1999) 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 13857-1:2003 apply. 4 Principle A detonating cord is taped tightly to a stack of paper cards. The detonating cord is detonated and the total numbers of cards cut is used as a measure of the initiating capability of the detonating cord. 5 Apparatus 5.1 Detonator A detonator of equivalent initiating capability, determined in accordance with EN 13763-15, as specified by the manufacturer of the detonating cord. 5.2 Paper cards Cards cut from plain non-coated paper of a grammage (gc) between 240 g/m2 and 260 g/m2 as determined according to EN ISO 536. The dimensions of the paper cards shall be (100 ± 5) mm long and (50 ± 5) mm wide. 5.3 Support plate Steel or aluminium plate (200 ± 20) mm long and (60 ± 5) mm wide. The thickness shall be at least 4,0 mm. 5.4 Tape Sticky tape, width (20 ± 2) mm. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 5 6 Test pieces Select five pieces of detonating cords, each of (500 ± 50) mm in length. 7 Procedure Select such a number of paper cards that after the test at least five paper cards are completely uncut. NOTE Depending on the grammage of the paper, the number of cards likely to be required is 24 to 33 for 12 g/m detonating cords and 35 to 45 for 24 g/m detonating cords. Place the paper cards on top of the support plate. Tightly connect one end of the detonating cord with three equally spaced pieces of tape to the paper cards and the support plate. Provide an excess end of (50 ± 10) mm of detonating cord (see Figure 1). Dimensions in millimetres Key 1 paper cards 2 tape 3 support plate 4 detonating cord Figure 1 - Detonating cord connected to the paper cards and support plate At the other end of the detonating cord tape the detonator to the detonating cord over a distance of (25 ± 5) mm or in a manner specified by the manufacturer. Place the assembly on a solid base of steel or concrete. Fire the detonator. Collect the paper cards. Count the number of paper cards that are cut completely. Add the total number of partially cut cards using the percentage (with an accuracy of 5 %) of each paper card that has been cut (i.e. if the paper card is cut for 30 mm add 0,3 to the number of cut cards). The number of cut paper cards (X) is the sum of the total and partial cut cards. Perform the test five times. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 6 8 Calculation of results The initiating capability (ICn) of each detonating cord is calculated using the equation: NOTE although the unit of IC is g/m2, IC will be used without units when expressing the results. where: n is the number of the test ICn is the initiating capability of the detonating cord in the nth test (-) Xn is the number of paper cards cut in the nth test (-) gcis the grammage of the paper cards in g/m2 Report the result as the arithmetic mean of the five individual values, rounded down to the nearest whole number. 9 Test report The test report shall conform to EN ISO/IEC 17025. The following information shall be given: a) initiating capability claimed by the manufacturer; b) type and grammage of paper card used in the test (gc); c) individual results of all five tests in the form of the total number of paper cards cut (Xn) and the calculated initiating capability (ICn); d) mean value of the initiating capability (IC) of the detonating cord; e) type of detonator used. 0001 )( cn n gX IC × = Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 7 Annex A (informative) Range of applicability of the test method Range of applicability of the test method: - 30 °C to + 80 °C. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 8 Annex B (informative) Restriction of the test method This test was developed in CEN/TC321/WG3 by several manufacturers and notified bodies. After extensive research it was concluded that the reproducibility of the test was good, but the repeatability was not. It should be noted that difficulty may be experienced in obtaining consistent results between different laboratories, as a consequence of variations in age or quality of the paper used. To compare IC values of detonating cords obtained using two different types of paper one will need a correction factor. Furthermore IC values obtained for mild detonating cords manufactured with low explosive concentrations (in terms of grammage per meter) have not been evaluated thoroughly and should therefore be reviewed critically. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13630-10:2005 (E) 9 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives. This European standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports essential requirements of EU Directive 93/15/EEC. WARNING : Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. The clauses of this standard are likely to support requirements I.1, I.2, and II.2.B.c of Directive 93/15/EEC. Compliance with this standard provides one means of conforming to the specific essential requirements of the Directive concerned and associated EFTA regulations. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13630-10:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. 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