1、BRITISH STANDARD BS EN 13938-3:2003 Explosives for civil uses Propellants and rocket propellants Part 3: Determination of deflagration to detonation transition The European Standard EN 13938-3:2003 has the status of a British Standard ICS 71.100.30 BS EN 13938-3:2003 This British Standard, was publi
2、shed under the authority of the Standards Policy and Strategy Committee on 25 July 2003 BSI 25 July 2003 ISBN 0 580 42345 X National foreword This British Standard is the official English language version of EN 13938-3:2003. The UK participation in its preparation was entrusted to Technical Committe
3、e 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 f
4、ound 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 re
5、sponsible 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 kee
6、p 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 ind
7、icates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN139383 March2003 ICS71.100.30 Englishversion ExplosivesforcivilusesPropellantsandrocketpropellants Part3:Determinationofdeflagrationtodetonationtransit
8、ion ExplosifsusagecivilPoudrepropulsiveetpropergol Partie3:Mthodededterminationdupassagedela dflagrationladtonation ExplosivstoffefrzivileZweckeTreibladungspulverund RaketentreibstoffeTeil3:Bestimmungdesberganges derDeflagrationindieDetonation ThisEuropeanStandardwasapprovedbyCENon28November2002. CE
9、NmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENm
10、ember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,B
11、elgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:rue
12、deStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN139383:2003EEN139383:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Apparatus .4 5 Testsample . .6 6 Preparationoftestsam
13、ple 6 7 Procedure .6 8 Testreport . .7 AnnexA (informative) Rangeofapplicabilityofthetestmethod.8 AnnexZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsorother provisionsofEUDirectives 9EN139383:2003(E) 3 Foreword Thisdocument(EN139383:2003)hasbeenpreparedbyTechnicalCommi
14、tteeCEN/TC321“Explosivesforcivil uses“,thesecretariatofwhichisheldbyAENOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbySeptember2003,andconflictingnationalstandardsshallbewithdrawnatthe latestbySeptember2003. Thisdocu
15、menthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). FortherelationshipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. ThisEuropeanStandardisoneofaseriesofstandardson Explo
16、sivesforcivilusesPropellantsandrocket propellants. Theotherpartsofthisseriesarelistedbelow: WI00321046 Part1: Requirements. WI00321050 Part2: Determinationofresistancetoelectrostaticenergy . prEN139384 Part4: Determinationofburningrateunderambientconditions . prEN139385 Part5: Solidrocketpropellants
17、.Guideforthedeterminationofvoidsandfissures . prEN139386 Part6: Solidrocketpropellants.Guideforthedeterminationofintegrityofinhibitorcoatings . prEN139387 Part7: Determinationofthepropertiesofblackpowder . AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganiza
18、tionsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN139383:2003(E) 4 1Scope ThisEur
19、opeanStandardspecifiesamethodtodeterminethetendencyofapropellanttoundergotransitionfrom deflagrationtodetonation.Itappliestopropellantsofagrainsizeupto8mm.Thismethoddoesnotapplytoblack powder. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublicat
20、ions.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe
21、publicationreferredtoapplies(includingamendments). ENISO/IEC17025,Generalrequirementsforthecompetenceoftestingandcalibrationlaboratories(ISO/IEC 17025:1999). prEN138571:2001, ExplosivesforcivilusesPart1:Terminology. ISO3304, PlainandseamlessprecisionsteeltubesTechnicalconditionsfordelivery. 3 Termsa
22、nddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninprEN138571:2001apply. 4Apparatus TheapparatusisshowninFigures1and2. 4.1 SeamlesssteeltubeconformingtoISO3304,externaldiameter48,3mm 0,5mm,thickness 4,0mm 0,6mm and length 1200 +5 0 mm.Thetubeisthreadedatbothendsanditiscl
23、osedbytwocastiron screwcaps. 4.2 Leadwitnessplate(s), thickness30mm 10mm. 4.3 Ignitiondevice consistingofaninsulatedNi/Crwire,diameter0,40mm 0,05mm,length15mm 1mm, locatedatoneendofthetubeandinternallyattachedtothecap. 4.4 Inertrod,ofatleast1300mmlength,withmajorlengthindicationsatevery100mmandminor
24、length indicationsatevery5mmandadiameterslightlysmallerthantheinnerdiameterofthesteeltube. 4.5 Inertfillplate ,consistingofaninertnonmetallicmaterialforfillingthefreespaceincaps. 4.6 Anvil,consistingofasteelplate,minimumthickness80mm,tobeputonthegroundforsupportinglead witnessplate(s).EN139383:2003(
25、E) 5 Key 1Screwcap 2Propellantcharge 3Ignitiondevice 4Steeltube 5Leadwitnessplate(s) 6Anvil 7Inertfillplate Figure1Apparatus(nottoscale) Key 1Screwcap 4Steeltube 7Inertfillplate 8Heightofpropellantchargeafterfilling Figure2Apparatus(detail)EN139383:2003(E) 6 5 Testsample Thetestsampleshallcompriseap
26、proximately5kgofthepropellant. 6 Preparationoftestsample Thetestsampleshallbeconditionedat20C 5Cforatleast24h. 7Procedure Closethetubeatbothendswiththescrewcaps.Ateachendnotethelengthoftubepenetratingintothescrew caps.Afterremovalfromthetube,fitthescrewcapsinternallywithaninertfillplateuptothepositi
27、ontowhichthe endoftubepenetrated.Thenclosethetubeatoneendwiththeappropriatescrewcapincludingtheinternalinert fillplate. Fillthetubewiththetestsampleinportionsof100g. Aftereachportion,placetheinertrodinthesteeltubeandnotetheheightofthepropellant.Removetheinertrod andsubmitthetubetofiveverticalfreefal
28、lsfromabout50mmheight.Measuretheheightofthepropellantagain withtheinertrod.Repeatuntilnofurthersettlingisdetected.Addanotherportionofpropellantandrepeatthe wholeprocess.Forthelastincrementaslightlydifferentwayoffillingisnecessarybecausethetubeshallbefilled to5mmfromtheend.Thiscanbeachievedbyusingapo
29、rtion mofpropellant,determinedbythefollowing equation: m=100 100 5 l l - where m istheportionofpropellant,expressedingrams(g); l istheremainingheightoftube,expressedinmillimetres(mm); l 100 istheheightcorrespondingtoaportionof100g,expressedinmillimetres(mm); Addthislastportion mwithoutthefivevertica
30、lfreefalls. Aftercompletionoffillingupto5mmfromtheendofthetubeclosethetubecarefullywiththeotherscrewcap containinganinertplateandequippedwiththeignitiondevice,i.e.themetalwireattachedtotheinsideofthe screwcap.Placetheclosedtubehorizontallyonthewitnessplate(s)sothatthetubeisindirectcontactthroughout
31、itslengthwiththeplate(s).Useanelectricdirectcurrentofupto8Aforamaximumof3mintoheatthewireandto ignitethepropellant.Performthetesttwice.“DeflagrationtoDetonationTransition“(DDT)isshownbythe compressionoftheleadwitnessplateorplatesinamannercharacteristicofdetonation(seeFigure3).IfDDT occursrecordthe“L
32、engthBeforeDetonation“(LBD)bymeasuringontheleadwitnessplate(s)thelengthwithout indentationbeforedetonation(seeFigure3,keynumber2)andaddingthelengthoftubepenetratingintothe screwcapequippedwiththeignitiondevice.EN139383:2003(E) 7 Key 1Endoftheplate 2Sectionofplate(s)withoutindentation 3Compressionoft
33、heplate(s) 4Initialupperleveloftheplate(s) Figure3Compressionoftheleadwitnessplate(s) Recordtheindividualresultsasfollows: deflagrationtodetonationtransition:LBD=.mm or nodeflagrationtodetonationtransition:LBD1200mm ThetestresultisgivenbythevalueofLBD. 8 Testreport ThetestreportshallconformtoENISO/I
34、EC17025.Inaddition,thefollowinginformationshallbegiven: a) areferencetothisstandard; b) thecompleteidentificationofthesample,includingloadingdensityandgrainsizedistribution; c) theindividualresults(LBDvalue).EN139383:2003(E) 8 Annex A (informative) Rangeofapplicabilityofthetestmethod Rangeofapplicab
35、ilityofthetestmethod: 30 Cto+80 C.EN139383:2003(E) 9 Annex ZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsor otherprovisionsofEUDirectives ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociationandsupportsessentialreq
36、uirementsofEUDirective93/15/EEC. Compliancewiththisstandardprovidesonemeansofconformingtothespecificessentialrequirementsofthe DirectiveconcernedandassociatedEFTAregulations. WARNING:OtherrequirementsandotherEUDirectivesmaybeapplicabletotheproduct(s)fallingwithinthe scopeofthisstandard. Theclausesof
37、thisdocumentarelikelytosupportrequirementsI.1andII.2.D.(a)ofDirective93/15/EEC.BS EN 13938-3:2003 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 Europ
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