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I S0 I N TE RN ATI ON AL S TAN D ARD 8656- Fi rst ed i ti on 988- 2- I N TE RN ATI ON AL ORG AN I ZATI ON ORG AN I SATI ON I N TE RN ATI ON ALE ME Xf i YH AP O, J J H AR Refractory prod u cts u n sh aped Part prod u cts - Sampl i n g FOR STAN D ARD I ZATI ON OP rAH kl A~ M R of raw DE n0 N ORM ALI SATI ON C TAH ~ AP TM AL&l M materi al s an d - : Sampl i n g Prod u i ts s ch e me rkfractai res faq on n tk prkpar& Parti e Sch e m a I: - l kh an ti i i on n ag e d es m at &e s premi kres et d es matbri au x n on - d ’ kh an ti l l on n ag e Re f e re n ce n u mb e r I S0 8656- l : 8 ( E) 86 66 - I SO 8 ( El : Foreword I S0 ( the i nternati onal nati onal s tan dards St an d ard s body is n orm al l y i nterested the ri g ht m en tal to be an d Draft th e a of I S0 that % for St an d ard I S0 worl dwi d e of h as I nternati onal I SO, federati on prepari n g al s o E ach been take part m em ber es tabl i s hed org an i z ati ons, El ectrotechn i cal in of I n ternati on al com m i t tees com m i t tee com m i tt ee wi th a work techn i cal a techni cal l i son is Th e the Com m i s s i on h as g overn work ( I E C) I S0 on al l standardi zati on are by bodi es ) I n ternati onal ad opted approval Th ey approval I nternati onal in th e St an d ard s bodi es Cou n ci l 75 wi th Stan dardi z ati on ) th rou g h wh i ch on el ectrotechn i cal I nternati onal l east ou t for repres en ted for m em ber carri ed s u bj ect cl os el y m e m ber th e in ( I S0 n on - g overn m en tal , col l aborates m at ters Org an i z ati on bodi es th e I S0 by before approved in m em ber 8656- l the thei r accord an ce bod i es was tech ni cal accept an ce com m i t t ees as wi th are I nternati onal I S0 ci rcu l ated to St an d ard s by proced u res requ i ri n g at Com m i t t ee I SO/TC 33, produ cts - voti ng prepared by Tech n i cal Refractori es I S0 8656 Sam pl i n g raw Part I: - Part 2: A form s I n t ern at i on al Pri nted ii of - An n ex s i s ts in of th e fol l owi n g m ateri al s Sam pl i n g an d i ntegral Org an i z at i on Swi tzerl and u n d er the g eneral ti tl e produ cts: s ch em e Determ i n ati on an parts, u n s h aped of part the of for coeffi ci ent thi s part of S tan d ar d i z at i on , of I S0 vari ati on 8656 999 Refractory I S0 I N TERN ATI ON AL STAN D ARD Refract ory prod u ct s u n s h aped Part prod u ct s of raw of I S0 sampl i n g part for raw produ cts, in It an d d oes ti ti es 8656 to appl y to of an d prepared th e di t i on s u n sh aped si g n men t : m e an val u es of a in wh i ch 3 si g n - test th e f orm of l arg e s ampl e s stati c can n ot type of to be s ampl i n g of the tested, eq u i pmen t , sampl es, are to be wh i ch ag reed an d sh ou l d th e not taken bet ween preparati on al ter th e the of - Di ffi cu l t i es u n s h aped m ay produ cts, be for en cou n t ered e xam pl e wh e n s ampl i n g N ormat i ve Th e parti es or cert n I S0 8656 were val i d th e the of on l i sted of su bj ect part of th e to I S0 appl yi n g bel ow cu rren tl y of of th e of part a parti es en cou rag ed recen t I EC an d qu an ti ty to u ni t: be l ots at or on e part s t i me of a A l ot su bj ected by a to su ppl i er i n spect i on in d i ti on s u n i form Packag ed tai n er) sampl e: Qu an t i t y l ot, i n t en d ed for a to of su ppl y d eci si on by part of a mat eri al l ot taken i n formati on , cern i n g th e wh i ch it i n cremen t : l arg er of i n di cated an d are mo s t I ntern ati on al th rou g h th i s edi ti on s revi si on , 8656 Me m be rs val i d wh i ch , provi si on s pu bl i cati on , are th i s possi bi l i ty st an d ard s reg i st ers t i me st an d ard s based provi si on s sti tu te su ppl i ed several n ormal l y as s u me d smal l process a tai n text, th e Al l i n vesti g ate tai n th i s At ag reemen t s of st an d ard s in mat eri al or ( for exampl e, in a th e f rom an d a si g n men t possi bl y si g n men t serve or l ot as or a the t ypes mou l d abl es referen ces fol l owi n g referen ce be packag ed or Speci fi c man u fact u red can basi s N OTE of on e an d properti es i n terested of q u an - be sack red u cti on si st l ot: ( ch ecki n g ) , wh i ch rel i abl e Qu an t i t y m ay of refractory sampl i n g prod u ct s f rom met h od s an d i n d i cate i n terval carg oes speci fi es mat eri al s ord er th e n ot or Th e an d s ch e me si g n men t men t ( E) - Scope Th i s mat eri al s : 88 I: Sampl i n g Sampl i n g - 8666- l of st an d ard ch osen been Qu an t i t y qu an ti ty ran d o m h as of materi al taken at on e t i me f rom mat eri al d evi ati on vari ati on s property prod u ced by of sampl i n g : i n trodu ced St an d ard i n to th e devi at i on meas u re me n t of of a sampl i n g to to bu l k parti al sampl e: Th e ag g reg at i on of th e i n cremen t s ed i ti on s I S0 mai n - St an d ard s sampl e: Sampl e obtai n ed by di vi di n g th e bu l k sampl e I S0 3634 I S0 977, 8666- mat eri al s th e : : an d St ati sti cs -I ) , of Vocabu l ary Refractory u n sh aped coeffi ci en t - an d prod u ct s prod u ct s - - Part 2: s ymbol s Sampl i n g of Det ermi n at i on raw of l aborat ory i n spect i on Defi n i ti on s test - See l ot: Defi n ed tu red or bei n g u n i form ) To be al so prod u ced Sampl e l aboratory I S0 53 qu an ti ty in t aken su i t abl e man n er composi t i on , of di t i on s a parti cu l ar wh i ch can mat eri al be man u fac- si d ered as sampl e; Sampl e d et ermi n at i on N OTE sampl e: for i n ten d ed to be u sed for an tests vari ati on 1 or ati on m ay th e for of be th e g rai n ph ysi cal as to si ze or of absol u te expressed sampl e, l aboratory su bj ecti on coeffi ci en t to fi nal from a tests sampl e: prepared ( for h u mi d i t y, in a exampl e, ch emi cal properti es) vari ati on : of an d parti cu l ar di stri bu ti on, oth er val u e an al yt i cal sampl e Rati o th e of ari th met i c th e stan dard me an ( th i s d evi rati o percen tag e) pu bl i sh ed I S0 8656- l : Gen eral 988 (I ru l es Be cau s e of mat eri al s, th e the di versi t y of ce rami c raw an d Sampl i n g ti on s an d of d el i very ci rcu mst an ces preparati on are an d u n d er carri ed ou t, cas es ( see packag i n g wh i ch ri g i d an d sampl i n g ru l es for th e in al l an n ex A) , an d sampl i n g an d Pro ced u r e s ampl e can n ot i n terested be ag ree on th e preferred sampl i n g I den ti fy Th e sampl i n g u n d er an d experi en ce of the sampl e preparati on su pervi si on of a proced u res person sh al l h avi n g requ i red, th e si g n men t m ay be i n di vi d u al Est i mat e test l ots, si st s parti al for of exampl e, vari ou s if l ots it or is cl ear that sh ou l d be th e th e sh ou l d du ri n g , in th e th e preferabl y l oad i n g or packag ed cas e exampl e, be carri ed u n l oad i n g of ou t the on mat eri al of of packag i n g , certai n prepared del i vered h ave u n mi xed compon en t s, to take th e some been of in u n sh aped s acks fi l l ed is bei n g d escri bed Th e in may, su ccess i ve mat eri al s at mi xi n g the expen si ve sh al l sh al l sampl i n g syst emat i c as For be i n terval s be met h od proced u re, u n i form Th e taki n g to sh al l on m as s of avoi d ti es ( see Th e be of the taken th e it vari ou s it n u mbe r the an y of ( see n ote to tabl e requ i red ) on basi s of th e th e l ot in a qu al i ty vari ati on cl ass ( see the n u mber of basi s t i me, or an d/or g rai n errors l arg e of qu an - it of i n cremen t s to be taken (i n 2) the is mi n i mu m in Det ermi n e sampl i n g s ampl i n g a th e on an d basi s th e wi th peri od i c poi n t on sh al l si ze d u ri n g to accou n t th e tabl e m as s formi t y of wi th the th e bu l k tests sampl e an d provi d ed for n ecessary the starti n g i n cremen t i n cremen t s an d test be co me is in reason a ran d om m ax i m u m t aki n g mat eri al sampl i n g , th e ch an g es ch an g ed of Th e accord an ce an d th e sampl i n g combi n i n g poi n t( s) an d th e met h od s for i n cremen t s be of be of d esi red taken preci si on mat eri al f rom in of req u i red n u mber of i n cremen t s in accord an ce a of basi s ( see d evi ati on s th e of If n ecessary, cremen t ( s) m ay wh i ch be m ay before be u sed maki n g di vi d ed in cas e up in order of di spu te th e to bu l k h ave sampl e, a reserve th e i n- s ampl e d et ermi n ed , th e sampl i n g Take 5 tabl e in ) M ake i n terested a the test l ot proper- sampl i n g up l aboratory parti es, wi th N OTE - testi n g propert i es Care f rom th e sampl i n g sh ou l d in sampl es, th e th e be as ag reed bet ween i n cremen t s or an d preparati on exerci sed “ as- recei ved ” s ampl e not to al ter bu l k th e th e s ampl e in pl an materi al wh en di ti on i /3, ) 2) Du ri n g al l owed, in qu an ti ti es 5) M ake speci fi ed st orag e i n cremen t mi n i mu m 4) Cal cu l at e that 1 th e th e compon en t s resu l t s th i s sampl i n g s syst emat i c d et ermi n ed tabl e of of for th e an d wi th accord an ce m as s accou n t preferred wi th between mi n i mu m accou n t ord er mat eri al of mas s th e th e l ayers h ave tran sportati on, h an d l ed i n cremen t syst emat i c th e Det ermi n e of mat eri al s wh i ch wi th wh ere du ri n g after met h od mat eri al s met h od or exten t i n cremen t ( s) sampl i n g ti ti es si ze u n i ts crete) separat ed Th i s g rai n or ( see to of mas s , in si g n men t veri fy t i me m ax i m u m provi ded Cl assi fy 2, ( for part in accord an ce 4 the t aki n g tests fi l l i ng or produ ct, qu an ti ti es Sampl i n g wh i l e of - treated tabl e mo ve me n t si g n men t ( n atu re etc ) Det ermi n e tabl e 4 th e su b- d i vi d ed for separate of sampl i n g Wh ere i n to i e s ampl e d be si g n men t l ot, be adequ at e wi th to di ti on s, performed test si g n men t pl an tran sport the parti es th e sh ou l d preparati on d i - speci fi ed s ampl e u n sh aped met h od an d sampl es, in u se th e of a provi d ed by the test s ampl e the properti es sampl e that or th e the d i vi si on , s ampl e s to to be preced i n g be preparati on prot ected of several tests test properti es is test s ampl e s n eces sary to carry ou t th e an d th e th e ag n st tested d et ermi n e resu l t( s) an d sh al l up prog ramme ( are) is n ot M as s Th e accord an ce materi al of th e mi n i mu m wi th tabl e i n cremen t m as s of f rom th e i n cremen t th e m ax i m u m is d et ermi n ed g rai n si ze of in th e I S0 Tabl e - Mi n i mu m d epen d i n g on m ass th e of i n cremen t Wh e n g rai n of m a xi m u m si ze th i s ti on M a xi m u m g rai n Mi n i mu m si ze of of It th e a property may be th at property i n cre me n ts in tabl e is i s i mme d i ate l y th e m o st u sed for : 8 ( E) assi g n e d cri ti cal to coeffi ci en t sel ecti n g th e a cl ass of vari a- n u mber n of i n cre men t mm > m as s i s d on e, vari ati on 8656- l 00 30 kg 00 kg 50 kg 20 kg 500 if it If n oth i n g i s g reater tabl e is th an ( see kn o wn 30, abou t u se e xam pl e s in th e th e cl ass coeffi ci en t val u e s of ( l arg e vari ati on or vari ati on s) of 6) g 200 g 50 Nu mber of i n cre me n ts an d sampl i n g preci si o n N OTE S Th e th an m asse s of g /e m s th e For i n cre men ts l o we r bu l k rel ate d en si ti e s, to a th e bu l k m ass d en si ty of th e g reater of m ay be d e te rmi n e d by m u l ti pl yi n g th e n u me ri cal val u e Dete rmi n e in th e th e materi al th e bu l k d e n si ty of th e Spe ci al ag re e me n ts n u mbe r n e xampl e , of i n cre me n ts th i s m ay be, fro m a property d epen d i n g reach ed , th e m o st i mportan t property on th e or th e mate ri al property For tabl e ag reemen ts by th e i n cre me n t sh ou l d be m ad e in th e case of very ati on l u m py wh i ch is affected by th e h i g h est coeffi ci en t of vari - v prod u cts In th e case of mi n i mu m m ass g rai n of th e si ze g rai n s Th e th e prod u cts if fro m before i n cre me n t th e th e se pre - h om og e n i ze d to be be bu t fro m sh o u l d are th e n ot fro m m axi m u m th e Th e th e u si n g si ze of to be coeffi ci en t th e on Th i s is th e th e properti es expressed by vari ati on sam pl e s m e an s of i n cre me n ts of an d th e th e d etermi n ati on resu l ti n g fro m sampl i n g of th e a property sampl i n g coeffi ci en t of is vari ati on v: sam pl i n g case of of bu l k between d e pe n d pe rformed ph ysi co- me ch an i cal prod u cts mate ri al , d e te rmi n e d , ag g re g ati n g masse s te sts th e can ag g re g ate, mate ri al an d or i n crem en t coarsest th e actu al sh ape d take n th e of e q u i pm e n t pre- g rou n d of for un- v, spe ci m e n s =* d e term i n e d Th e rel ati ve preci si on of sampl i n g for th i s property is d efi n ed as: Wh e n 2 take th e sam pl e s sam e mass in of su ch a th e i n cre men t way th at al l h as h ave been d etermi n ed , approxi mate l y th e m ass p, = 2q = 2” ( 2) J r; to Cl assi fi cati o n th e r an g e of of i ts a pro pe rty acco rd i n g vari ati o n s Th e property Th e m e an val u e an d th e stan d ard d evi ati on of a n u mbe r ch o se n n a of i n creme n ts spe ci fi c sh al l sampl i n g be su ch preci si o n fi t th at is for the obtai n ed : g i ve n 41 property, ci en t d esi g n ated of vari ati on Expre sse d in respe cti vel y ol , u of practi ce th i s as a by p an d cr, d efi n e th e n = LL coeffi - property percen tag e v = Th e d esi red 000//A th i s is u sed cl asse s in of th i s I n tern ati on al vari ati on of Stan d ard th e to assi g n an d d efi n e property vari ati on speci fi ed an d in Th e cl asse s val u e s of th e coeffi ci en t of vari ati on are d i vi d ed v For < % sm al l vari ati on , cl ass th e % < v < % < v < % med i u m % l arg e vari ati on , e xampl e - cl ass if vari ati on , cl ass th e Th e e sti mati o n esti mati on obtai n ed fro m vari an ce meth od of of th e th e or th e coeffi ci en t stan d ard appropri ate an al ysi s d evi ati on test of of vari ati on sampl i n g , resu l ts, property Th e val u e actu al n eed ed to d etermi n ed an d of n n u mbe r th e g i ven sh ou l d fro m m as s in of tabl e n ot be ach i e ve th e th e is a l e ss th e cl ass test of l ot as mi n i mu m th an th at tabl e a : l ower sampl i n g preci si o n i s si d ered su ffi ci en t for reason s; becau se ti on 3 is or 30 th e th e e co n o mi c of i n cre me n ts sampl i n g i n to : G in of of tabl e g en eral l y speci fi ed th ree n u mber preci si on q u al i ty th e G an d or th e th e if a rel ati ve test g reater preci si on s me th od are pre ci si on too is of th e sampl i n g prepara- g reat; req u i red , req u i res wh i ch appl yi n g is th e th en be th e n u mber d etermi n ed of fro m i n cre me n ts eq u ati on for ( 3) th e ( see req u i red al so cl au se preci si on can 7) I S0 If 8656- l oth er bu l k th e : properti es sam pl e fro m are bei n g coeffi ci en ts property, th e eq u ati on wh i ch h ave se l ected fer 8 ( E) val u e s of th ei r g i ven d etermi n ed vari ati on rel ati ve in tabl e sampl i n g by d i fferen t an d formi n g fro m preci si o n s can be a th at PI cal cu l ated of d i f- fro m 5 If taken th e test l ot is d el i vered rai l way taken sam pl e s th i s u n ti l by wag o n s or separate tru cks, m e an s at l east of on e tran sport, Th e fro m each of th ese m e an s of i n cremen t test l ot sacks, taken is d el i vered etc , th e fro m packag ed If in n smal l e r i n cre me n ts d i fferen t packag ed u n i ts in th e as packag ed test l ot is u n i ts speci fi e d u n i ts l e ss sh al l at be l east packag ed taken fro m eq u al uni t to sh al l be e ach th an n of Th e th e N OTE be is - Th e be su ch i n cre me n ts an d taken , h as al read y u n l oad i n g keepi n g to th e sam e i n ter- compl eted of in in If n, tabl e th e th e th e sam e packag ed n u mber vari ati on of th e wi th of al l th e i n cre men ts m as s of for th e in an y or th e vari ou s bu l k tests, sam pl e n u mbe r of i n cre ase is l e ss th e ei th er sam pl e s so of i n creme n ts m ay al so th e be per to obtai n of a Exam pl e s a per fi rst Grai n d en si ty of a mag n esi te - ch ro me cl i n ke r mm) batch 8656- taken m ass as m as s of l ot: 20 000 kg 0, 01 n u mbe r th an th e of g i vi n g i n creme n ts mate ri al I S0 th e of n u mber u n i ts for sh al l n u mber acco rd an ce co n si sts amou n t m e an A been operati on s, as reported coeffi ci en t d etermi n ed sam pl e fi xed req u i red I