EN 13631-2-2002 en Explosives for civil uses - High explosives - Part 2 Determination of thermal stability of explosives《民用爆炸物 烈性炸药 第2部分 炸药热稳定性的测定》.pdf

1、BRITISH STANDARD BS EN 13631-2:2002 Explosives for civil uses High explosives Part 2: Determination of thermal stability of explosives The European Standard EN 13631-2:2002 has the status of a British Standard ICS 71.100.30 BS EN 13631-2:2002 This British Standard was published under the authority o

2、f the Standards Policy and Strategy Committee on 6 June 2003 BSI 6 June 2003 ISBN 0 580 42008 6 National foreword This British Standard is the official English language version of EN 13631-2:2002. The UK participation in its preparation was entrusted to Technical Committee CII/61, Explosives for civ

3、il 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 un

4、der 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 ap

5、plication. 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;

6、 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 date displayed in this document indicates when the document was l

7、ast issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN136312 September2002 ICS71.100.30 Englishversion ExplosivesforcivilusesHighexplosivesPart2: Determinationofthermalstabilityofexplosives ExplosifsusagecivilExplosifsPartie2:Dterminat

8、ion delastabilitthermiquedesexplosifs ExplosivstoffefrzivileZweckeSprengstoffeTeil2: BestimmungderthermischenStabilittvonExplosivstoffen ThisEuropeanStandardwasapprovedbyCENon11July2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an

9、Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadeb

10、ytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,

11、Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN

12、136312:2002EEN136312:2002(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Apparatus .4 5 Preparationoftestsamples. .5 6 Procedure .6 7 Testreport . .8 AnnexZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsorother provisionsofEUDi

13、rectives 9EN136312:2002(E) 3 Foreword Thisdocument(EN136312:2002)hasbeenpreparedbyTechnicalCommitteeCEN/TC321“Explosivesforcivil uses“,thesecretariatofwhichisheldbyAENOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMa

14、rch2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby March2003. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). ForrelationshipwithEUDirective(s),seeinformativeannexZA,which

15、isanintegralpartofthisdocument. ThisEuropeanStandardisoneofaseriesofstandardson ExplosivesforcivilusesHighexplosives. Theother partsofthisseriesare: prEN136311 Part1: Requirements. prEN136313 Part3:Determinationofsensitivenesstofrictionofexplosives. EN136314 Part4:Determinationofsensitivenesstoimpac

16、tofexplosives. EN136315 Part5:Determinationofresistancetowater. EN136316 Part6:Determinationofresistancetohydrostaticpressure. prEN136317 Part7:Determinationofsafetyandreliabilityatextremetemperatures. prEN1363110 Part10:Methodfortheverificationofthemeansofinitiation. prEN1363111 Part11:Determinatio

17、noftransmissionofdetonation. prEN1363112 Part12:Determinationoftheinitiatingcapabilityofboosters. prEN1363113 Part13:Methodforthedeterminationofdensity. prEN1363114 Part14:Methodforthedeterminationofvelocityofdetonation. prEN1363115 Part15:Calculationofthermodynamicproperties. prEN1363116 Part16:Det

18、ectionandmeasurementoftoxicgases. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norw

19、ay,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom.EN136312:2002(E) 4 1 Scope ThisEuropeanStandardspecifiesamethodtoassessthestabilityofexplosivesbysubjectingthemtoelevated thermalconditions. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpub

20、lications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditiono

21、fthe publicationreferredtoapplies(includingamendments). prEN138571:2001, ExplosivesforcivilusesPart1:Terminology . ENISO/IEC17025,Generalrequirementsforthecompetenceoftestingandcalibrationlaboratories(ISO/IEC 17025:1999). 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefiniti

22、onsgiveninprEN138571:2001andthe followingdefinitionapply. 3.1 selfheating temperatureriseatleast3 Cabovethetemperatureofthereferencesubstance 4 Apparatus 4.1 Heatingchamber, capableofbeingcontrolledat(75 2) C. NOTE Theheatingchambershouldhavedualthermostatsorsomeothermeansofprotectionagainstthermalr

23、unawayif thecontrolthermostatmalfunctions.Preferably,thechambershouldbeisolatedandcapableofremoteoperation.Itshouldalso beequippedwithaventilationsystem. Electricalequipmentshouldbesafeforusewithexplosives. 4.2 Balance,capableofweighingto 0,1g. 4.3 Threethermocouples, ofappropriatetype,whichareinert

24、tothesubstancesundertest.Ifthesheathisnot inertwithrespecttothesubstanceundertest,aninertenvelopeshallbeusedwithathermalresistanceaslowas possible. 4.4 Temperaturerecordingsystem, capableofmeasuringtemperatureto 1 C. 4.5 Twoglasstubes, withaflatbottom,innerdiameter(50,5 0,5)mm,approximately150mmlong

25、anda thicknessofapproximately3mm.Foritsclosure,thetubecontainingthesubstanceundertestshallbeequipped withagasproofdevicewithaweakpartformingarupturediskcalibratedatastaticgaugepressureof60kPaora continuouspressuremeasurementdevice.AnexampleofaclosingdeviceisshowninFigure1.Ameansof ventingthedevicesh

26、ouldbeprovided. 4.6 Referencematerial, withthesamephysicalstateasthatofthesubstancetobetested,stableatthetest temperature(forexample,sandoraluminaforagranularsolid,apolytetrafluoroethylene(PTFE)blockforasolid rocketpropellantandwaterforaliquid).Asampleof300gissufficient.EN136312:2002(E) 5 Key 1Ruptu

27、redisk 2Outletvalve 3Closingdevice 4Glasstube 5Thermocouple Figure1Exampleofglasstubeequippedwithaclosingdevicewithrupturedisk 5 Preparationoftestsamples 5.1 Liquidsubstances,pastelikeorgranularsolids Thetestsampleshallhaveavolumeof(100 4)ml.Particlesbiggerthan4mmshouldbecrushedbeforethetest.EN13631

28、2:2002(E) 6 5.2 Compactsolids Compactsolidsshallbetestedincylindricalblockswithadiameterof 5 , 0 0 49 + mm,andalengthof(50 1)mm. Oneofthesidesoftheblockshallhaveablindholealongtheblockaxis,soastohousethethermocouple(see 4.3).Thediameteroftheholeshallexceedthatofthethermocouplebyamaximumof0,3mm.Itsde

29、pthshallbe suchthatthethermocouplejunctionlieswithin2mmofthecentreoftheblock. 6 Procedure WARNING Ifnoinformationisavailableonthermalbehaviourofthesubstance,apreliminarytestshouldbe performedwithasmallamountofsubstance(forexample,5g)inordertodeterminewhetherthesubstance explodesat75 C. Adjustthetemp

30、eratureoftheovento(75 2) C. Afterhavingweighedanemptyglasstube,placethetestsampleintoit. Ifthesubstanceisaliquid,apasteoragranularsolid,pourorplaceitintothetube.Granularsolidsaretested withoutcompacting.Thesubstanceshallfillthelowerpartofthetubeuptoaheightof(50 1)mm,whichgivesa testsamplevolumeof(10

31、0 2)ml. Foracompactsolid,thetestsamplecomprisesoneofthecylindricalblocksdescribedin5.2.Placetheblockinthe lowerpartofthetube. Weighthetubecontainingthesubstancetobetestedinordertodeterminethemassofthetestsampleandderive theloadingdensityofthesubstance,bymeansofthefollowingequation: where r istheload

32、ingdensity,ingramspermillilitre(g/ml); M isthemassofthetestsample,ingrams(g); V isthevolumeofthetestsample,inmillilitres(ml). Passthewiresofthermocouple1throughtheclosingdevicesothatthejunctionofthethermocoupleiswithin2 mmofthecentreofthetestsample.Incaseofacompactsoliditshallbeplacedintheblindholeo

33、fthetestsample block.Inothercases,pushthethermocoupleintothesubstance. Place(100 2)mlofthereferencesubstanceintheotherglasstube,usingtheproceduredescribedabove,but withoutweighing.Insertthermocouple2andclosethetube. Finally,fixthermocouple3tothesecondtube,ontheoutsideandatthesamelevelastheothertherm

34、ocouples, usingwire,forexample. TheschematicassemblyoftheapparatusisshowninFigure2. Thetwotubesareplaced10cmormoreapartfromeachotherinsidethechamber.Thethermocouplesare connectedtothetemperaturerecordingsystem,whichisswitchedon.Thetemperaturesofthesubstanceunder testandofthereferencesubstancearereco

35、rdedwiththermocouples1and2.Thetemperatureofthechamberis recordedwiththermocouple3. V M = r EN136312:2002(E) 7 Key 1Heatingchamber 2To(T1T2) 3To(T3) 4Closingdevice 5Glasstubes 6Thermocouple1(T1) 7Thermocouple2(T2) 8Thermocouple3(T3) 9Substanceundertest(100ml) 10Referencesubstance(100ml) Figure2Assemb

36、lyofapparatus Afterthesampleandreferencesubstancehavereachedatemperatureof(75 2) C,releasethepressureand continuethetestfor 1 0 48 + h,unlessoneofthefollowingphenomenaoccurs: a) reportorflame; b) releaseofgasandbreakageoftherupturediskorpressureriseabove60kPa; c) selfheatingofthesubstanceundertest.

37、Ifoneofabovephenomenahasoccurredthetestshallbeterminated.Switchofftheovenand,afterithascooled, examineitscontents.Ifthetestisconcludedafter 1 0 48 + h,switchofftheovenand,afterithascooled,recoverthe tubecontainingthesubstanceundertestandweighittodeterminewhetheranylossofmasshasoccured. Ifnoneoftheph

38、enomenaa),b)orc)hasbeenobserved,recordtheresultas“noreaction”.Otherwise,recordthe resultas“reaction”.EN136312:2002(E) 8 7 Testreport ThetestreportshallconformtoENISO/IEC17025.Inaddition,thefollowinginformationshallbegiven: a) areferencetothisstandard; b) theresult,as“reaction”or“noreaction”; c) deta

39、ilsofanychangeofcolourorlossofmass; d) incaseofreaction,thefollowingindicationsshallbegiven: 1) reportorflameafterh; 2) maximumselfheatingto Cafterh; 3) ruptureofthediskorpressureriseof60kPaintheclosedsystemafterh; e) ifrelevant,dimensionsorgrainsizeofthesample; f) theloadingdensity,expressedingrams

40、permillilitre(g/ml).EN136312:2002(E) 9 Annex ZA (informative) ClausesofthisEuropeanStandardaddressingessentialrequirementsor otherprovisionsofEUDirectives ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandthe EuropeanFreeTradeAssociationandsupportsessentialrequireme

41、ntsofEUDirective93/15/EEC. WARNING:OtherrequirementsandotherEUDirectivesmaybeapplicabletotheproductsfallingwithinthescope ofthisstandard. TheclausesofthisstandardarelikelytosupportrequirementsI.1,II.1.(b)andII.1.(d)ofDirective93/15/EEC. Compliancewiththisstandardprovidesonemeansofconformingtothespec

42、ificessentialrequirementsofthe DirectiveconcernedandassociatedEFTAregulations.BS EN 13631-2:2002 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

43、 and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the S