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IS 14260: Glass and glass-ceramics - Knoop hardness test PDF

9 Pages·1995·1.1 MB·English
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Preview IS 14260: Glass and glass-ceramics - Knoop hardness test

इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 14260 (1995): Glass and glass-ceramics - Knoop hardness test [PGD 22: Educational Instruments and Equipment] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 14260 : 1995 IS0 9385 : 1990 ,* $k- .i$&$j-+ p& - -zpFa-cmtm Indian Standard SSALG DNA SCIMAREC-SSALG - KNOOP SSENDRAH TSET ( tsriF tnirpeR LIRPA 6991 ) UDC :82./11.666 643.251.871.026 @ SIB 5991 BUREAU OF INDIAN STANDARDS KANAM ,NAVAHB 9 RUDAHAB HAHS RAFAZ GRAM NEW IHLED 200011 March 5991 ecirP puorG 2 lacitpO dna lacitamehtaM stnemurtsnI lanoitceS ,eettimmoC ML 02 LANOITAN FOREWORD sihT naidnI dradnatS hcihw si lacitnedi htiw 0SI 0991:5839 ssalG dna -sicamarec-ssalg poonK ssendrah ,tset deussi yb eht lanoitanretnI noitazinagrO for noitazidradnatS ,)OSI( saw detpoaa yb eht uaeruB of naidnI sdradnatS no eht snoitadnemmocer of eht lacitpO dna lacitamehtaM -urtsnI stnem lanoitceS eettimmoC ML( )02 dna devorppa yb eht thgiL lacinahceM gnireenignE noisiviD .licnuoC ehT poonK ssendrah rebmun sesiretcarahc eht ruoivaheb of ssalg dna sicamarec-ssalg gninrecnoc a tnenamrep egnahc of eht ecafrus retfa noitatnedni htiw a dilos .lairetam sihT si eno of a seires of sdradnats gnitaler ot eht lacitpo ssalg dna ssalg cimarec .gnitset ehT txet of 0SI dradnats sah neeb devorppa sa elbatius for noitacilbup sa naidnI dradnatS tuohtiw .snoitaived niatreC snoitnevnoc era revewoh ton lacitnedi ot esoht esu ni naidnI .sdradnatS noitnettA si ylralucitrap nward ot eht :gniwollof )a Comma J( sah neeb desu sa a lamiced rekram elihw ni naidnI sdradnatS eht tnerruc ecitcarp si ot esu a lluf pots ).( sa eht lamiced .rekram )b reverehW eht sdrow lanoitanretnI‘ ’dradnatS raeppa gnirrefer ot siht ,dradnats yeht dluohs eb daer sa naidnI‘ .’dradnatS IS 14260: 1995 IS0 938!3 : 1990 Indian Standard SSALG DNA SCIMAREC-SSALG - POONK SSENDRAH TEST 1 scope sihT lanoitanretni dradnatS sebircsed eht dohtem fo tset rof gninimreted eht poonK ssendrah rebmun fo ssalg dna .scimarec-ssalg d ehT poonK ssendrah rebmun seziretcarahc eht -eb ruoivah fo ssalg dna scimarec-ssalg gninrecnoc a tnenamrep egnahc fo eht ecafrus retfa noitatnedni Figure 1 - Base area of the indentation produced htiw a dilos .lairetam by the Knoop indenter 2 Definition, symbol and designation ehT poonK ssendrah ,rebmun ,KH si lanoitroporp ot eht tneitouq fo tset ecrof ;I dna eht projected aera ,A fo eht tnehamrep noitatnedni nevig yb laciremun eulav noitauqe (1): 172,s" 13Q0 Hk= 201,0 + P = 201,0 ”031 )lnatx.;f27’toc = 14,229 x y . . )1( Figure 2 - Knoop indenter erehw F si eht tset ,ecrof ni ;snotwen ehT lobmys HK si :detnemelppus is eht projected ,aera ni erauqs -emillim PA ,sert fo eht tnenamrep ;noitatnedni a) yb a rebmun gnitacidni eht tset ecrof ,desu -xe desserp ni snotwen deilpitlum yb 201,0 dna d si eht ,htgnel ni ,sertemillim fo eht gnol erofereht lauqe ot eht tset ecrof desserpxe ni noitatnedni .lanogaid kilogram-force, dna NOTE 1 The factor 0,102 in numerical value equation (1.) b) yb a rebmun gnitacidni eht noitarud fo tset ecrof became necessary through the introduction of the SI-unit newton for the test force instead of kilogram-force to noitacilppa ni .sdnoces avoid changing of the value of the Knoop hardness num- ELPMAXE ber. sihT noitatnedni si dedrager sa a thgiarts dimaryp 094 HK 02/1,0 snaem eht poonK ssendrah -mun htiw a esab aera sa nwohs ni erugif ,1 a gnol -nedni reb 094 HK gnitluser from na deilppa tset ecrof noitat lanogaid d dna lacitnedi esrevsnart aera -na fo 089,0 7 N x( 201,0 slauqe O-1). sihT tset ecrof selg ot esoht fo eht retnedni ees( .)2erugif saw deilppa rof 02 .s 1 IS 14290: 5991 0SI 9385 : 1990 3 Prfnclple 4.3 Verification of apparatus ehT poonK retnedni si decrof yllacitrev otni eht -rus tI si recommended ot tset eht noitcnuf fo eht -drah ecaf fo a tset nemiceps fo ssalg or scimarec-ssalg ssen retset ,ylraluger gnidulcni eht poonK ,retnedni yb tnereffid tset secrof rof 02 .s nihtiW a 6 nim doirep yb stnemerusaem fo dezidradnats tset setalp fo retfa lavomer fo eht ,retnedni eht htgnel fo eht gnol nwonk ,ssendrah ylbareferp made fo .ssalg noitatnedni ,slanogaid tfel ni eht ,ecafrus era meas- tcepsnI eht poonK retnedni yllacipocsorcim from deru gnisu a .epocsorcim time ot time tcetedot yna breakages or damage ot eht .segde 4 Apparatus 5 Test specimen ehT tset ecafrus fo eht nemiceps llahs eb .talf tI llahs 4.1 Hardness tester eb dehsilop-erif or yllacitpo dnuorg dna .dehsilop ehT ssendrah retset llahs meet eht gniwollof re- yletaidemmI erofeb ,gnitset ti llahs eb dehsilop htiw :stnemeriuq retaw dna muirec oxide until dry. 4 eht evitaler error fo eht tset ecrof llahs eb ton ehT muminim ssenkciht fo eht nemiceps llahs eb SO mm. retaerg naht 1 ;% b) eht ngised fo eht gnidaol ecived llahs eb hcus 6 Procedure taht eht retnedni si yllacitrev eerf‘,derewol from stress dna ,noitarbiv no ot eht ecafrus fo eht tset ehT ssendrah tset llahs eb deirrac tuo ta a temper- nemiceps ta a etar fo 02,0( + )50,0 mm/min; eruta from 81 “C ot 82 “C, sselnu esiwrehto deerga .nopu c) eht htgnel fo eht gnol noitatnedni lanogaid llahs eb elbarusaem htiw na ytniatrecnu ssel naht ecalP eht tset nemiceps no eht egats fo eht -drah 5,0 pm; ssen retset os taht eht tset ecafrus fo eht tset -ceps nemi seil ni a enalp lamron ot eht sixa fo eht tset )d eht epocsorcim tnemerusaem llahs eb deirrac ecrof dna eht sixa fo eht retnedni .)dnomaid( gniruD tuo htiw eht ciremu:Otevitceffe erutrepa fo eht eht ,tset eht tset nemiceps llahs niamer ni siht -isop evitcejbo desu fo 7,0 ,,’ ; .noit 4 eht thgil desu rof eht tnemerusaem llahs eb naelC eht poonK retnedni yb gnisserp ti otni reppoc .neerg-wolley or leets fo wol ,ssendrah or yb snaem fo a elbatius tnevlos ton lufmrah ot eht ssendrah .retset ETON 2 ehT evitceffe erutrepa’laciremun ylbaborp -fid fers htiw eht atad no eht .evitcejbo tI si recommended ot ylppA eht tset secrof rof 02 s ot ecudorp eht -nedni eriuqni tuoba siht from eht rerutcafunam fo eht ssendrah ,snoitat eht gnol lanogaid snoisnemid fo hcihw era .retset desu ot etaluclac eht poonK ssendrah .rebmun -ruD gni eht gnitnedni time, on skcohs or snoitarbiv llahs eb dewolla ot egnahc eht tset .ecrof nihtiW a 6 nim doirep retfa gnivomer eht tset ,ecrof erusaem eht 4.2 Knoop Indenter htgnel fo eht gnol noitatnedni lanogaid ,eciwt gnisu ehT poonK retnedni stsisnoc fo a deppit-dnomaid eht .epocsorcim ehT seulav deniatbo llahs ton reffid thgir dimaryp htiw a diobmohr esab sa nwohs ni yb more naht 0,2 pm. erugif ,2 esohw sixa si tnedicnioc htiw eht sixa fo eht For eht noitanimreted fo eht poonK ssendrah -mun tset .ecrof ehT poonK retnedni llahs eb fo a epahs ,reb ylppa eht tset ecrof fo 089,0 7 N. oT ecuder -nu os taht eht rotcaf ytniatrec gnisira from ylno eno tset ecrof ,eulav ylppa ni noitidda ot eht tset ecrof fo 089,0 7 N, no eht 5,0 toc F x nat F) = 82,07 x 3wol same ,yad tset secrof fo owt rehto seulav hcihw era ton ylekil ot etaerc evissecxe .erutcarf ni laciremun eulav noitauqe (1) sah a noitaived on nI eht esac erehw ylno eht tset ecrof fo 089,0 7 N si retaerg naht 1 .% ,desu taeper eht erudecorp ta tsael evif tnereffid ehT secaf dna segde fo eht poonK retnedni llahs eb times. For eerht tnereffid tset ,secrof taeper eht htooms dna eerf from cracks or rehto .stluaf erudecorp ecno eht txen .yad tI si recommended ot esu ylno poonK sretnedni ylppA eht tnereffid snoitatnedni no eht same tset hcihw evah neeb deifitrec yb a gnitset .ytirohtua ;nemiceps eht ecnatsid neewteb snoitatnedni llahs 2 IS 14260:1995 IS0 9385:lQQO eb ta tsael eerht times eht htgnel fo eht trohs -ni 7 Expression of results noitatned .lanogaid ehT poonK ssendrah rebmun HK 02/1,0 si detaluclac nI eht esac taht a tnemerusaem fo eht gnol -atnedni irom laciremun eulav noitauqe (2) noit lanogaid si dedepmi yb tsud selcitrap ta eht dne fo eht noitatnedni lanogaid or fi eht gnirusaem re- 02/1,0KH = 324,1 . . . )2( stlus fo eno noitatnedni reffid yb more naht 0,2 pm, d2 siht noitatnedni dna eht stnemerusaem llahs eb re- .detaep tresnI eht htgnel d, ni ,sertemillim fo eht gnol -ni noitatned lanogaid deniatbo rehtie yb tcerid meas- enimreteD eht citemhtira snaem fo eht gnol -nedni tnemeru or yb noitanimreted from eht thgiarts enit noitat slanogaid rof hcae noitidnoc fo .noitatnedni rof a tset ecrof fo 089,0 7 N ni laciremun eulav noitauqe (2). nI eht esac erehw eerht seulav fo tset ecrof era ,desu tolp eht stluser no a hparg sa :swollof 8 lest report tolP eht seulav fo gl ;I no eht assicsba dna eht -lav seu fo gl don eht .etanidro fI lla eht stnemerusaem ehT tset troper llahs edulcni eht gniwollof -amrofni erew deirrac tuo ylreporp (for ,ecnatsni on tsud :noit ,selcitrap on evissecxe ,serutcarf ,).cte lla eht stniop era detautis no a thgiarts .enil ehT 089,0 7 N tniop 4 ecnerefer ot siht lanoitanretnI ;dradnatS llats eb denimreted from eht thgiarts enil dna desu sa d rof eht noitaluclac fo eht poonK ssendrah b) epyt dna noitangised fo eht ssalg or eht -ssalg rebmun gnisu laciremun eulav noitauqe (2) ees( ceramics; esualc .)7 Sometimes a tniop si tahwemos trapa from eht thgiarts ,enil eud ot seitluciffid ni eht lC yrotsih fo eht tset ,nemiceps fi ;nwonk tnemerusaem fo siht .tniop nI siht ,esac taeper eht ,stnemerusaem gnidulcni a htruof tset .ecrof d) poonK ssendrah rebmun HK 02/1,0 dednuor ot eht tseraen 01 HK ;02/1,0 )e a tnemetats rehtehw eht poonK ssendrah -mun reb saw deniatbo yb tcerid tnemerusaem or yb noitanimreted from eht thgiarts .enil 3 Bureau of Indian Standards of SIB is a yrotutats noitutitsni dehsilbatse rednu eht uaeruB naidnI Standards Act, 1986 to etomorp suoinomrah tnempoleved fo eht seitivitca fo ,noitazidradnats gnikram and ytilauq noitacifitrec fo sdoog and gnidnetta ot detcennoc srettam ni eht .yrtnuoc Copyright SIB has eht thgirypoc fo all its .snoitacilbup oN trap fo eseht snoitacilbup yam eb decudorper ni yna mrof tuohtiw eht roirp noissimrep ni gnitirw fo .SIB sihT seod ton edulcerp eht eerf ,esu ni eht esruoc fo gnitnemelpmi eht standard, fo yrassecen ,sliated hcus as slobmys and ,sezis epyt ro edarg .snoitangised seiriuqnE gnitaler ot thgirypoc eb desserdda ot eht rotceriD ,)snoitacilbuP( .SIB Review of Indian Standards stnemdnemA era issued ot standards as eht deen sesira no eht basis fo .stnemmoc Standards era osla deweiver ;yllacidoirep a standard gnola htiw stnemdnema is demriffaer nehw hcus weiver setacidni that on segnahc era ;dedeen fi eht weiver setacidni that segnahc era ,dedeen ti is nekat up rof .noisiver sresU fo naidnI Standards dluohs niatrecsa that yeht era ni noissessop fo eht tsetal stnemdnema ro noitide yb gnirrefer ot eht tsetal issue fo SIB‘ ’koobdnaH and sdradnatS‘ ylhtnoM .’snoitiddA sihT naidnI dradnatS has neeb depoleved morf toD : .oN ML 20 ( 0220 ,) Amendments Issued Since Publication dnemA .oN etaD fo eussI txeT detceffA UAERUB FO NAIDNI SDRADNATS :sretrauqdaeH Manak ,navahB 9 rudahaB Shah rafaZ Marg, weN ihleD llCMXl2 smargeleT : Manaksanstha senohpeleT : 3310131,33113 75 nommoC( ot all )seciffo lanoigeR seciffO : enohpeleT lartneC : Manak ,navahB 9 rudahaB Shah rafaZ Marg 3310131 WEN IHLED 110002 331 13 75 { nretsaE : 41/l C. .T.I emehcS IIV M, V. .I .P ,daoR alotkinaM 378499,378561 ATTUCLAC 700054 { 37 86 2637 86 62 nrehtroN : SC0 ,633-533 rotceS ,A-43 HRAGIDNAHC 160022 603843 602025 { nrehtuoS : C. .I .T Campus, VI ssorC ,daoR MADRAS 600113 235 02 16,235 04 42 { 235 15 19,235 23 15 nretseW : ,ayalakanaM 9E MIDC, ,loraM irehdnA )tsaE( 632 92 95,632 78 58 YABMOB 400093 632 78 91,632 78 92 sehcnarB : .DABADAMHA .EROLAGNAB .LAPOHB .RAWHSENABUHB .EROTABMIOC .DABADIRAF .DABAIZAHG .ITAHAWUG .DABAREDYH JAIPUR. .RUPNAK .WONKCUL .ANTAP .MARUPAHTNANAVURIHT ,tinU ,SIB weN Reprography Delhi, India

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