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IS 6868: Dental instruments - Dental extraction forceps PDF

11 Pages·1991·1.2 MB·English
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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 6868 (1991): Dental instruments - Dental extraction forceps [MHD 8: Dentistry] “!ा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 6668 : 1991 @wff ( TTqlC ) Indian Standard DENTALINSTRUMENTS-DENTAL EXTRACTIONFORCEPS-SPECIFICATION ( First Revision ) UDC 615’472’4 : 616’314-089’87-72 0 BIS 1991 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, -9 BAHADUR SHAH ZAFAR MAR6 NEW DELHI 110002 September 1991 Price Groap 2 latneD stnemurtsnI and tnempiuqE lanoitceS ,eettimmoC DHM 8 FOREWORD sihT naidnI dradnatS ( tsriF noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb eht latneD stnemurtsnI and tnempiuqE lanoitceS eettimmoC had neeb devorppa by eht lacideM tnempiuqE and latipsoH gninnalP noisiviD .licnuoC sihT standard was tsrif issued ni 1972. Its tsrif noisiver has neeb thguorb tuo ot etaroprocni niatrec snoitacifidom desab no eht ecneirepxe deniag gnirud noitatnemelpmi fo this standard and ot align ti htiw eht tsetal secitcarp gnieb dewollof at eht lanoitan as llew as lanoitanretni .level sihT standard srevoc lareneg ,stnemeriuqer nommoc ngised serutaef and tset sdohtem rof latned noitcartxe .specrof suhT ti is detcepxe ot evres as a latnoziroh standard rof all sepyt fo latned noitcartxe specrof and dluow mrof a yrassecen tcnujda rof rieht evitcepser standards. yltneuqesnoC ti is dednetni ot esiver all eht gnitsixe standards no tnereffid sepyt fo latned noitcartxe ,specrof os as ot revoc ylno lanoisnemid and rehto cificeps ,stnemeriuqer hcihw tonnac eb .dezilareneg sihT dluow pleh ni reideeps noitatnemelpmi fo naidnI Standards no latned noitcartxe .specrof roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc ,htiw eht lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro sisylana shall eb dednuor ffo ni ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor Fto laciremun seulav ( .‘)desiver ehT rebmun fo tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav ni this standard. IS 6868 : 1991 Indian Standard DENTALINSTRUMENTS-DENTAL EXTRACTIONFORCEPS-SPECIFICATION ( First Revision ) 1 SCOPE gnitsixe naidnI Standards no latned noitcartxe .specrof 1.1 sihT standard seificeps stnemeriuqer and a dednemmocer sampling plan rof latned 4.2 Tolerances P noitcartxe- .specrof secnareloT no snoisnemid shall eb as nevig ni 4.2 fo SI 3642 ( traP 1 ) : 1990. 2 REFERENCES 4.3 ehT owt sevlah fo eht tnemurtsni shall, 2.1 ehT gniwollof naidnI Standards era yrassecen ,revewoh ton reffid at yna noisnemid and shall stcnujda ot this standard: hctam htiw hcae rehto .yltcefrep IS No. Title 4.4 Mass 1501 dohteM fo srekciv hardness ehT mass fo eht latned noitcartxe specrof shall ( traP 1 ) : 1984 tset rof cillatem :slairetam eb as detacidni ni eht tnaveler naidnI dradnatS traP I VH 5 ot VH 100 rof latned noitcartxe .specrof A ecnarelot fo ( & 5 g shall, ,revewoh eb .dettimrep second revision ) 3403 : 1981 snoisnemiD rof knurls ( jirst 5 SSENDRAH revision ) 5.1 ehT specrof shall eb ylmrofinu denedrah and 3642 lacigruS stnemurtsni - -epS derepmet ot a hardness fo 310 ot 410 VH and ( traP )1 : 1990 :noitacific traP 1 -noN eht nip ro eht wercs ot 310 ot 330 .VH ,gnittuc detalucitra -urtsni stnem ( second revision > 5.2 Matting secafrus no eht emas tn:murtsni _ hcus as etisoppo jaws and shanks shall ton yrav 4905 : 1968 sdohteM rof modnar sam- ni hardness yb erom than 40 .VH gnilp 6603 : 1972 sselniatS leets bars and stalf 6 PIHSNAMKROW 7531 : 1990 sdohteM rof gnitset fo -orroc nois ecnatsiser fo stainless 6.1 tnioJ leets lacigrus stnemurtsni 6.1.1 ehT specrof shall eb edam htiw dessecer (first revision ) wercs ,tnioj gnimrofnoc ot SI 3642 ( traP 1 ) : 1990. ehT wercs desu shall eb fo dettols eseehc 3 MATER1 ALS daeh nrettap gnivah wercs sdaerht as nevig ni laudividni naidnI Standards rof latned noitcartxe 3.1 Forceps .specrof nehW ,dettif eht wercs shall eb dnuorg hsulf htiw eht .specrof ehT ydob fo eht specrof shall eb edam fo stain- less leets gnimrofnoc ot noitangised 20 Cr 13 ro 6.1.2 ehT stnioj fo eht specrof shall eb os -snoc 30 Cr 13 fo SI 6603 : 1972. detcurt that eht seldna nepo ylhtooms tuohtiw krej and uohtiw P noitacilppa fo eudnu .ecrof 3.2 Pin or Screw 6.1.3 erehT shall eb on elbitpecrep laretal tnemevom fo eht seldnah ni ylluf ,nepo -retni ehT swercs desu ni specrof shall eb edam fo etaidem ro ylluf desolc .snoitisop stainless leets gnimrofnoc ot noitangised 20 Cr 13 fo SI 6603 : 1972. 6.1.4 ehT renni ro gniraeb ecafrus fo eht tnioj shall eb ylhtooms dehsinif and eerf morf suoivbo ,snoitcefrepmi nehw denimaxe yllausiv tuohtiw 4 TYPES, SHAPES, SIZES, DIMENSIONS .noitacifingam AND MASS 6.2 eldnaH 4.1 ehT ,sepyt shapes, ,sezis snoisnemid and -mass fo eht specrof shall mrofnoc ot eht tnaveler 6.2.1 ehT seldnah fo eht specrof shall eb ylbatius naidnI Standards rof latned noitcartxe .specrof ,depahs renni secaf talf and .dehsilop nI eht ecnesba fo a standard, eseht shall eb as rep s’resu ,stnemeriuqer hcihw shall ylraelc 6.2.2 ehT retuo secaf fo eht seldnah fo eht yficeps snoisnemid no eht emas senil as nevig ni specrof shall eb delrunk up ot htgnel nwohs ni F,“ 1’ Ill ,, ‘, ~ ,, 1s 6868:1991 the figures in individual Indian Standards for in S.1 and 5.2 in accordance with IS 1501 dental extraction forceps. The knurling shall be (Part 1) :1984. of diamond pattern with a pitch of 1“Omm and shrdl conform to IS 3403:1981. 8.2 Performance The forceps shall show no sign of damage when 6.3 Besk tested in accordance with Annex A. The load If the beaks are serrated, the serrations shall be applied shall be as givenin the individual Indian reasonably uniform in depth throughout the Standard for dental extraction forceps. length and consistent in distribution in any one pattern of forceps. The serrations shall be clear 8.3 Corrosion Resistance and clean. The forceps shall be subjected to aIl the tests for 6.4 The instrument shall be balanced, the move- corrosion resistance as given in IS 7531 :1990. ment shall be even and the jaws shall register They shall pass the test$. accurate]y. 9 MARKING 7 SURFACE CONDITIONS 9.1 Marking onInstruments ‘7.1 All surfaces shall be free from pores, crevices, grinding marks and other imperfections. The forceps shall be legibly and indelibly The instrument shall also be free from residual marked with the indication of the source of scale, acid, grease, grinding and polishing mate- manufacture, the letters ‘ss’or the words ‘stain- rials. Compliance with these requirements less steel’and the country ofmanufacture. shall be checked by visual inspection. There shall be no non-functional sharp edges which 9.2 Marking onCartons could cause injury during normal use. The carton or the package containing the forceps 7.2 Surface Finish shall bear all the markings given on the instru- ment. In addition, the carton or package shall The surface finish of the instrument shall be aIsobemarked with the name of the individual reflection reducing, for example, satin finish, extraction forceps and any other information matt black finish. that may be required by the purchaser or law in force. 7.3 Passivation andFinalTreatment The forceps shall be treate# by a suitable 10 PACKING. passivation process, for example, by electropoli- 10.1 The forceps shall either be put individually shing or by treatment with 10 percent ( v/v ) ;n a polyethylene bag or wrapped in wax paper. nitric acid solution for not less than 30 minutes Each forceps then shall be packed in carton at a temperature not less t han 10°C and not either as agreed to between the purchaser and exceeding 60”C. The instrument shall than be the manufacturer or in accordance with tbe rinsed in water and dried inhot air. current trade practices. NOTE- If the joint is lubricated, the lubricant 11 SAMPLING should be non-corrosive and suitable for medical application according to Indian Pharmacopoeia. 11.1 The scale of sampling and criteria for conformity of the instruments to the require- 8 TESTS ments of this specification shall be as agreed to between the purchaser and the supplier. 8.3 Hardness A recommended sampling plan is given in Forceps shall be tested for hardness as specified Annex B, / t ANNEX A ( Clause8.2 ) PERFORMANCE TEST A-1 APPARATUS A-2,2 Beak Prop A-1.1 Testing Apparatus A prop made from annealed brass of shape and A suitable apparatus, such as that shown in width such that it can be used to obtain a 35 to Fig. 1,capable of applying a load in the manner 45mm opening of the forceps handles, measured indicated. at their extremity. 2 IS 6868:1991 BEAK-PROP ~<~“ l . . 90 b, CLAMPED HANDLE HELD BETWEEN VICE JAWS USING SHAPED BRASS FORMERS I I ii II / r ~ [ ~ )“ EIr JI l LOAQ . l Ii I 1/3 l LIJ ~ 35 l mm TO45 mm FIG.1 PERFORMANCTEEST A-2 PROCEDURE A-2.1.1 Apply aloadas indicated intheindivi- dual specifications for dental extraction forceps A-2.1 Mount the forceps in the testing appara- for 3minutes-to a point at approximately 2/3 of tus, using the beak prop to obtain a handle the distance from the joint to the free end of the opening of 35 to 45 mm ( see Fig. 1). Place handle (see Fig. 1). Ensure that the handles the beak prop between the extremities of the do not return to their fully closed position forceps beaks and check the handle opening by during application of the load. After 3minutes, measuring at asimilar position on the handle, as if no fracture has occurred; examine forceps indicated in Fig. 1. for any sign of permanent set at the beak, joint or handles. 3 IS 6868: 1991 ANNEX B ( Clause 11.1 ) SAMPLING OF DENTAL EXTRACTION FORCEPS B-l LOT B-l.3 esehT specrof shall eb detceles morf eht tol at modnar and ni redro ot erusne ssenmodnar nI yna ,tnemngisnoc all eht specrof fo eht emas fo ,noitceles serudecorp nevig ni SI 4905 : 1968 epyt and ,nrettap decudorp morf eht emas yam eb .dewollof lairetam rednu ralimis snoitidnoc and gnivah emas ecafrus hsinif shall etutitsnoc a .tol 2-B REBMUN FO STSET AND CRITERIA FOR CONFORMITY B-l.1 roF gniniatrecsa eht ytimrofnoc fo eht lairetam ot eht stnemeriuqer fo eht tnaveler B-2.1 llA eht specrof detceles as ni B-1.2, shall eb detcepsni rof repahs and ,snoisnemid mass, ,snoitacificeps samples shall eb detset morf hcae pihsnamkrow and ecafrus snoitidnoc ( lausiv .) tol .yletarapes specroF gniliaf ot teem eno eromro fo eseht 2.l-B ehT rebmun fo~ specrof ot eb detceles rof stnemeriuqer shall eb deredisnoc .evitcefed A hcae tol shall dneped nopu eht ezis fo eht tol tol shall eb deredisnoc as gnivah deifsitas eseht and’shall eb ni ecnadrocca htiw 1oc 1 and 2 fo ,stnemeriuqer fi ereht is on evitcefed ni eht elbaT 1. .elpmas , 2.2-B ehT tol gnivah deifsitas eht stnemeriuqer elbaT 1 Scale of Sampling detset rednu ,1.2-B shall eb rehtruf detset rof (Clauses B-l.2 and B-2.2 ) hardness, noisorroc ecnatsiser and ecnamrofrep stset as rep eht tnaveler .snoitacificeps roF Lot Size Sample Size Sub-sample Size this ,esoprup a elpmas-bus fo ezis nevig ni 1oc 3 (1) (2) (3) fo elbaT 1 shall eb .detceles hcaE fo eht specrof up to 15 2 1 ehtni elpmas-bus shall eb detcejbus ot eseht .stset 16 to 50 3 1 ehT tol shall eb deredisnoc as gnivah deifsitas 51 to 150 5 2 eht tnaveler stnemeriuqer fo eht noitacificeps 151 and above 8 3 fi ereht is on .eruliaf 4 Standard Mark ehT esu fo eht dradnatS Mark is denrevog yb eht snoisivorp fo eht Bureau of Indian Standards Act, 1986 and eht seluR and snoitalugeR edam .rednuereht ehT dradnatS Mark no stcudorp derevoc yb an naidnI dradnatS syevnoc eht ecnarussa that yeht evah neeb decudorp ot ylpmoc htiw eht stnemeriuqer fo that standard rednu a llew denifed metsys fo ,noitcepsni gnitset and ytilauq lortnoc hcihw is desived and desivrepus yb SIB and detarepo yb eht -orp .recud dradnatS dekram stcudorp era osla ylsuounitnoc dekcehc yb SIB rof ytimrofnoc ot that standard as a rehtruf .draugefas sliateD fo snoitidnoc rednu hcihw a ecnecil rof eht esu fo eht dradnatS Mark yam eb detnarg ot srerutcafunam ro srecudorp yam eb deniatbo morf eht uaeruB fo naidnI Standards.

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