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INTERNATIONAL STANDARD I INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXAYHAPOAHAR OP~AHM3AL&4R l l0 CTAHAAPTWSA~Wl IS0 8890 First edi tion 1 988 04 01[.]

I S0 I N TE RN ATI ON AL S TAN D AR D 889 Fi rst edi ti on 988- 04- 01 I I N TE RN ATI ON AL ORG AN I ZATI ON ORG AN I SATI ON I N TE RN ATI ON ALE M E XAYH AP OAH AR Den s e sh aped resi stan ce Pro d &s rh fractai res to refractory su l fu ri c faeon n b d en ses prod u cts FOR STAN D ARD I ZATI ON DE OP ~ AH M AL&4 R l - l - N ORM ALI SATI ON C TAH AAP TWS A~ Wl Determi n ati on aci d - Dh termi n ati on de la rksi stan ce B l ’ aci d e su l fu ri q u e of I S0 9990 : 9 ( E) Forewo rd I S0 ( th e i n tern ati on al n ati on al stan d ard s Stan d ard s bo d y is n o rmal l y i n terested th e ri g h t men tal to Draft th e represen ted wi th I n tern ati on al I S0 l east Co u n ci l 75 % ou t th at for Th e y approval I n tern ati on al in th e by Stan d ard Stan d ard i zati on ) bod i es) th rou g h wh i ch on I S0 wi th a worl d wi d e of h as I n tern ati on al I SO, fed erati on prepari n g al so Each been m e m be r establ i sh ed org an i zati on s, take El e ctrote ch n i cal part of I n tern ati on al co m mi tte e s co mm i tte e co m mi tte e l i son wo rk te ch n i cal a tech n i cal I n tern ati on al is Th e in th e Co m m i ssi o n h as g overn wo rk ( I EC) I S0 on al l stan d ard i zati on Stan d ard s bod i es for m e m be r for el ectrotech n i cal m e m be r th e carri ed a su bj e ct cl o se l y of ( I S0 n on - g overn men tal , col l aborates matters in be an d Org an i zati on bod i es ad opted approval are th e I S0 by before approved in m e m be r 8890 th e th ei r accord an ce bod i es was tech n i cal acceptan ce co m m i tte e s as wi th are I n tern ati on al I S0 ci rcu l ated to Stan d ard s by proced u res req u i ri n g Co m mi tt e e I SO/TC at voti n g prepared by Te ch n i cal 33, Refractori es U se rs an d l atest sh ou l d th at an y n ote ed i ti on , I n tern ati on al Pri n ted in th at referen ce u n l e ss al l I n tern ati on al mad e oth erwi se Org an i zati on Swi tze rl an d h erei n Stan d ard s to an y oth er u n d erg o revi si on I n tern ati on al stated for Stan d ard i zati on , 999 fro m Stan d ard ti m e to ti me i mpl i e s i ts I N TERN ATI ON AL De n s e s h aped resi st an ce Scope SO STAN D ARD refractory to an d fi el d su l fu ri c of prod u ct s - th e I n tern ati onal resi st an ce su l fu ri c N OTE the St an d ard appl i cati on of d en se speci fi es sh aped a met h od refractory - Su l fu ri c resu l ts Wo ve n for prod u ct s to attack to of aci d is exposi n g u s ed si n ce it refractory g i ves resu l ts mat eri al s to wh i ch m an y are aci d s t ypi cal ot h er of 4 Bal an ce, 0, 001 g 363, g rou n d si eve, of 063 I S0 565 mm apertu re, - ( su ppl emen t ary si ze - capabl e of wei g h i n g 25 g to the n earest Rou n d - bot t omed 7731 , Laborat ory Test g l assware si eves N o mi n al - i n terch an g eabl e - Wo ve n si z es of met al wi re cl oth an d Coi l tu rn s in a stopper sh ort, ( see of capaci t y n arrow I S0 n eck, 363) for 500 ml equ i pped th e ( see wi t h i n serti on a of a Sol i d - st em g en eral Laborat ory d en sers, th e coi l of ( see I S0 l en g th 256 mm, h avi n g at l east 4799) perforated apertu res 1 773, g l ass fl asks, wi th i cal 770, each t h ermomet er j oi n ts 565, I S0 cl oth t h an Referen ces I S0 wi re req u i remen t s aci d g rou n d I S0 met al the by I S0 pl ate of l i st) d et ermi n i n g I S0 ( E) aci d h ydrofl u ori c Det ermi n at i on : 966 aci d formi n g Th i s 889 pu rpose g l assware - I mmers i on mm) ( see t h ermomet ers I S0 ( l en g th approxi mat el y 770) t h ermomet ers Boi l i n g fl asks l n arrow- San d Porcel n bath or oi l bath n ecked ) I S0 4799, Laboratory I S0 5022, Sh aped tan ce g l assware refractory - Con d en sers prod u ct s - Sampl i n g an d Th ermost at i cal l y Pri n ci pl e Th e test to h resu l tan t tag e sampl e, attack of m as s th e cru sh ed by 70 l oss i n i ti al in % is m as s a speci fi ed ( m/m) boi l i n g d et ermi n ed of th e an d d ry man n er, su l fu ri c expressed i s su bj ect ed aci d, as an d a for th e l aboratory apparatu s Su i tabl e mech an i cal Du ri n g l i st) to met al th e wi re 1 IL oven , capabl e of mai n - OC u se on l y di sti l l ed reag en t s water or of wat er recog n i zed of eq u i val en t = , 61 an al yti cal pu ri ty Bari u m aci d, 70 ch l ori d e, % 50 ( m/m) , g /l e1 g /ems sol u ti on an d cru sh i n g cl oth req u i remen t s test, on l y Su l fu ri c d evi ce, preferabl y of si eve, I S0 0, 80 565 mm apertu re, ( su ppl emen t ary Test sampl es n ot an ce Wo ve n the an d formi n g of materi al steel trol l ed t emperat u re Reag en t s g rad e a percen - Apparat u s Ord i n ary cru ci bl e accep- testi n g tai n i n g fi l ter Th e wi th n u mbe r I S0 of 5022 s ampl e s or wi th to be an oth er t aken sh al l st an d ard be in accord - sampl i n g pl an si ze Fro m proxi mat el y each 256 sampl e, g, on e t ake f rom t wo th e pi eces cen t re of an d a total on e m as s f rom an of ap- ed g e I S0 8890 Gri n d ( 1 , : 988 the si evi n g t wo th e resi d u es u n ti l 0, 80 apertu re mm N OTE - If carefu l l y pi eces th e st eel wi t h a u si n g several test si eve mat eri al a tog eth er mat eri al al l Th e mat eri al ( E) th e t i mes mat eri al cru sh i n g an d h as d evi ce re- g ri n di n g passed t h rou g h i ng th e u n ti l of to th e mort ar h as to s h ou l d be be u sed , h ard er t reat th e t h an th e cru sh ed th e 7 fi l trate Dry trol l ed mag n e t Si eve the materi al Cl ear th e resi d u e wash i n g wi t h t h rou g h on di sti l l ed th e the 0, 63 si eve water of Th i s mm al l apertu re d u st resi d u e in g, the remai n s u si n g fi l ter u n cl ou d ed sol u ti on ( 2) an aspi rator cru ci bl e wi th wh en are a to d fi l ter- di sti l l ed few wat er d rops of th e added th e at cru ci bl e 1 & wei g h i n g , tai n i n g OC, u n ti l al l ow th e t emperat u re in the cru ci bl e a resi d u e stan t m as s an d i ts in is the oven , reach ed t en ts Before to cool to desi ccat or si eve parti cl es f o rms 0, 001 resi d u e ch l ori d e ambi en t ( 3) n earest th e test mat eri al each the Was h bari u m ( 2) mort ar wei g h ed th e by th e test We i g h net th e m as s cru ci bl e is an d i ts t en ts to th e n earest 0, 001 g ( th e ~ 2~ ) mat eri al N OTE - ot h er A t h an syst emati c be t we e n error the wi l l l i mi t s be set i n t rod u ced in an d if g rai n si zes are u se d Expressi on Cal cu l ate Dry oven ( 01 , th e reach ed to resi d u e trol l ed Before cool to n earest + on at each ambi en t th e 0, 63 1 + wei g h i n g , mm OC, al l ow t emperat u re apertu re in a u n ti l th e si eve stan t si eve the m as s wi th d esi ccat or in of i ts l oss of mas s , resu l ts m as s u si n g of th e the test mat eri al , as a percen tag e formu l a is ten t s Wei g h to th e w 0, 001 th e i n i ti al of - m2 x g 00 ml wh ere Proced u re ml It is ad vi sabl e to carry ou t at l east two t est s in m2 For of the each dri ed test, wei g h , mat eri al to ( m as s th e n earest 0, 001 g, Pl ace ( 5) coi l an d the wei g h ed cover it d en ser i mme rs e d at Over wi th ( 6) l east a test 200 an d peri od of mat eri al ml of i n sert mm th e i n i ti al is th e mas s , abou t 20 to th e boi l i n g in 30 in th e a the abou t poi nt a rou n d - bot t omed su l fu ri c aci d t h ermomet er fl ask ( ) ( 7) Att ach so that Test poi n t of th e 70 % ( m/m ) in th e of Th e test it is Keep th e t emperat u re l i qu i d of the th e boi l i n g l i qui d report th e After testi n g b) the date mi n , bri n g th e ten t s of batti ml fl ask U DC , an d on of i nto al l ow top of or aci d oi l is l i qu i d bath ( 8) [the approxi mat el y after l i g h tl y at h as th e bas ed it th e di sti l l ed the boi l ed : on water, : cool boi l i n g for en d a of peri od th i s for h, an d fi l ter for pag e s h Cau t i ou sl y wash cru ci bl e 620 93 41 refractory to sampl e porcel n 666 76 Descri pt ors Pri ce l i qu i d test materi al ; g rams , of th e resi du e mat eri al s, i n cl u d e the fol l owi n g i n formati on : c) a est abl i sh men t ; referen ce of Not e fl ask : th e Decan t pou r wh ol e ( 91 , th e in the e) ou t previ ou sl y the th e refractori es, tested cl ear of dri ed tests, t emperat u re sh ortl y th e before i n d i vi du al Stan dard , aci d s in ( man u factu rer, of th e th e en d val u es proporti on ate i e “Deter- accord an ce wi th type, bat ch n u mber, aci d of an d sh ortl y after th e test; the cal cu l ated boi l i n g m e an beg an l oss of m as s of each s ampl e val u e of tested aci d the an d N OTE - val u e Th e e xampl e 546 226- 325 sh aped mat eri al to of approxi mat el y t en ts I n tern ati on al resi st an ce ) ; an d the th i s of 8890”; d) t i me take to test; %I beg u n h the boi l i n g 70 h as of th e th e fl oati n g 500 the in sh al l th e f) th e report a) etc of l i qu i d san d su l fu ri c t emperat u re g rams, a I S0 Not e in g mi n at i on fl ask mas s , ml ) is paral l el aci d resi st an ce tests Th e in i n d i vi d u al m e an val u e accord an ce val u es is wi t h u sed I S0 are in u s ed in fu rther 50 22 d et ermi n i n g stati sti cal th e m e an an al ysi s, for

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