International Standard @ 4805 0 a 4 4@!& INTERNATIONAL ORGANIZATION FOR STANDARDIZATlON*MEWlYHAPOAHAR OPrAHH3AUIIR n0 CTAH~APTH3AlJlH ORGANlSATlON INTERNATIONALE DE NORMALISATION Laboratory glassware[.]
I n tern ati o n al I N TERN ATI ON AL ORG AN I ZATI ON FOR Laboratory S tan d ard STAN DARDI ZATlON *M EWlYH APOAH AR g l assware - OPrAH H 3AU I I R n0 @ 48 a4@ 4! & CTAH ~ APTH 3Al J lH ORG AN lSATl ON I N TERN ATI ON ALE Th erm o-al coh ol om eters DE N ORMALI SATI ON an d al coh ol -th erm oh ydrom eters Verreri e Fi rst B U DC de l aboratoi re edi ti on - 531 756 Descri ptors - Al coom &res et ar&om &tres pou r al cool avec th erm om ktre i n corpork 982-1 -1 : 536 51 : g l assware, l aboratory Ref g l assware, m easu ri n g i n stru m en ts, h ydrom eters, al coh ol s, speci fi cati on s, N o I S0 g rad u ati on s, 4805-1 982 (E ) d i m en si on s s Pri ce based on pag es Foreword I S0 (the I nternational national standards national Standards body interested rig ht to and be is in represented carried on Draft I nternational mem ber the I S0 I nternational Standard glassware September I S0 with before by also the their work take of federation developing commi ttees committee I nternational I SO, adopted approval technical a technical comm ittee is a worldwide The has Every been set organizations, part technical in the mem ber has the governmental work committees acceptance up of I nter- are as I nternational circulated to Standards by been I S0 and 4805 related was developed apparatu s, by and Technical was circulated Committee to the I SO/TC mem ber 443, bodies 979 approved by the m em ber bodies of the following countries Australia Hungary Brazil I taly Canada Korea, Rep of Sou th France Libyan Arab Jamahiriya Spain Germany, No mem ber I nternational Printed for bodies) throu g h which liaison Standards bodies Standardization) m em ber Council Laboratory I t has out for that in for (I S0 a su bj ect non-governmental, the in Organization insti tu tes F body R expressed Organization i n Switzerland Poland Romania N etherlands disapproval for : of USSR the Standardization, docu men t 982 Africa, Rep of I S0 I N TERN ATI ON ALSTAN DARD Laboratory g l assware Th erm o-al coh ol om eters - 4805-1 982 (E ) an d al coh ol th erm oh yd rom eters Th e i n trodu cti on al coh ol parts I S0 480 speci fi es wi th ou t an however, u se for al coh ol om eters i n corporated i n stru m en ts Th e presen t su ch an d wi th an i n tern ati on al In i n corporated Stan dard sym bol al coh ol -h ydrom eters th erm om eter m an y are in Th i s an d fi el d I n tern ati on al porati n g a appl i cati on of speci fi es Stan dard th erm om eter al coh ol om eters (th erm o-al coh ol om eters) su i tabl e th erm oh yd rom eters, for i n cor- an d g en eral al coh ol - N OTE - In In I S0 speci fi ed are, speci fi cati on s as are far as al coh ol om eter cern ed, al coh ol an d presen t Th e of scal e al coh ol of al coh ol -h ydrom eters an d th ei r al coh ol om eters ten ts of in i s g radu ated n om i n al ran g e is is an d h ydro- form i ty ad j u sted al coh ol -water i n den si ty parti cu l arl y to adapted of th e as th e m i xtu re n u m ber Th e of rel evan t I S0 of 480 , th e al i g n m en t however, sym bol wi th preferen ce “% th e sh ou l d be (m /m ) ” rel evan t g i ven to is OI M L- th e u se of th e th e : m i xtu re sam e by Th e at rati o 20 vol u m e of OC to th e th e of a vol u m e total of m i xtu re pu re vol u m e of al coh ol of th e m i x- tem peratu re tu re (for to Th e exam pl e th e of Th e cen trati on vol u m es rel evan t of by al coh ol sym bol vol u m e per is “% is h u n d red expressed vol u m es as of th e th e m i x- vol ” wi th allow m i xtu res u n i ts an d cen trati on al coh ol N OTE - 78/2 i n terest al coh ol in at u sed readi n g s expressed al coh ol om etri c 87 N OTE I S0 Th e detai l s is parts m ass” th e water n u m ber m eter “% m ass h u n d red m ass” tu re pu rposes Th e by per Recom m en d ati on , i n stru m en ts Scope is u sed requ i rem en ts “% ten t al coh ol cou n tri es, th erm om eter speci fi es of - In (see I S0 n ote in 78/2 an d I S0 48 , th e sym bol “% (Vl v)” is 2) di rect scal e of Den si ty kg /m ? , requ i rem en ts of Th e den si ty sh al l be of an al coh ol -water m i xtu re, where appl i cabl e, al coh ol om etry I S0 of 3 Referen ces 6, Li qu i d -i n -g l ass d esi g n , l aboratory stru cti on an d th erm om eters - Pri n ci pl es 3 7, H ydrom eters - in Referen ce Th e ki l og ram s per cu bi c m etre tem peratu re reference tem peratu re sh al l be 20 OC u se I S0 expressed Pri n ci pl es of stru cti on Con stru cti on an d ad j u st- m en t G en eral reqi ri rem en ts Al coh ol om eters G en eral req u i rem en ts q u i rem en ts Defi n i ti on s an d of I ti es, Al coh ol sh al l be reason abl y Th e term “al coh ol ” u n d erstood as eth yl sh al l , in al coh ol th i s I n tern ati on al (eth an ol , Stan dard, al coh ol al coh ol tu re to : th e Th e total ten t rati o of m ass by th e of m ass m ass th e of of m i xtu re a m i xtu re al coh ol Th e of presen t water in th e of g l ass as free free sh al l m eet th e re- an d of as from al coh ol -h ydrom eters su i tabl e possi bl e i n tern al ch em i cal from an d vi si bl e sh al l th erm al defects be proper- an d sh al l be stress be C2H s0H ) be al coh ol -h ydrom eters 87 Al coh ol om eters stru cted I S0 coeffi ci en t (25 Z! I 2) of x cu bi cal 0-s th erm al expan si on of th e g l ass sh al l OC-1 an d m i x- fi n i sh ed Th e l oadi n g i n stru m en t m ateri al h as been sh al l kept in be a su ch h ori zon tal th at after th e posi ti on for IS0 4805-1 982 (EI h at 80 OC and subsequently cooled to room temperature in that position, the instrument shall meet the requirements of 3.4.1 3.53 Relation between alcohol mass content, and surface tension of alcohol-water mixtures 3.4.1 The instrument shall float with its axis vertical to within degree 30 minutes 3.5.4 Relation between alcohol volume concentration, density and surface tension of alcohol-water mixtures 3.4.1 The thermometer shall be provided with an expansion volume, which allows heating up to a temperature slightly above 80 OC See table See table 3.5.5 Wetting For correct reading, the stem shall not be wetted more than a few miliimetres above the liquid surface 3.4.2 Scales 3.4.2.1 Scales and inscriptions shall be marked on a smooth matt surface Graduations within the nominal scale limits and inscriptions shall be marked in black Graduations outside the nomimal scale limits (see 3.4.2.2 and 3.4.2.3) may be marked in a colour other than black 3.6 inscriptions The following shall be legibly and indelibly marked on each instrument : - appropriate inscriptions according to IS0 387; - the basis of scale, for example % mas, % vol or kglm3; - the word ethanol or ethyl alcohol or the symbol C,H,OH; - any other inscription, for example as required by national legal metrology; - reference to the appropriate International or national Standard 3.4.2.2 Alcoholometer and hydrometer scales shall carry two to ten additional graduation lines beyond the nominal limits at both ends 3.4.2.3 Thermometer scales shall carry two to four additional graduation lines beyond the nominal limits at both ends 3.4.2.4 Indelible datum lines of thickness comparable with that of the scale lines shall be provided - at the highest figured graduation line of alcoholometer (hydrometer) scales; - at the lowest figured graduation line of thermometer scales NOTE - Alternatively, the latter may be confined to the graduation line at 20 OC Requirements for thermo-alcoholometers for mass content 4.1 Scales 3.5 4.1 3.5.1 Basis of adjustment Length of graduation a) every tenth graduation Reading lines line shall be a long line; b) there shall be a medium line between two consecutive long lines; The instrument shall be graduated for reading at the level of the free surface of the liquid 3.5.2 Scale subdivision c) there shall be four short lines between consecutive medium and long lines and limits of error (See figure ) See table Table - Scale subdivision Scale subdivision 0,l % VOI 0.1 % mas 0,2 kg/m3 Alcoholometer Alcohol-hydrometer Limit of error f 0,l % VOI f 0.1 % mas -t 0,2 kg/m3 density and limit of error Thermometer Scale subdivision Nominal range T OC 5to 25 oto 30 0.2 Limit of error f 0.2 IS0 4805-1 982 (E) Table - Alcohol mass content by mass, density and surface tension at 20 OC Alcohol Alcohol Alcohol Surface Surface Density mass mass Density Density mass tension tension content content content kg/m3 kg/my mN/m % mas % mas mN/m % mas kg/m3 72,6 40 935,1 29,9 80 998.20 8433 81 840,91 996.31 67,l 41 933.1 29.7 42 82 994,48 931 03 29,5 -.m WJ 63 992,73 43 928,84 29,3 635.93 60.1 991 02 44 926,82 29,l 64 633,41 57,8 45 924,69 28.9 85 630.66 55,7 =wa 46 28,8 86 828,32 922,53 987.78 53.8 47 28,6 87 825,75 986,24 52,l 920,37 98473 48 91 8.1 28,5 68 823,1 50,5 983.27 49 91 5.89 28,3 69 620,53 431 47,8 50 91 3,77 28,2 90 81 7.88 10 981 ,85 11 980,46 46,6 51 91 ,55 28,1 91 81 5,21 12 979.1 52 28,0 92 81 2,49 45,5 909,31 13 53 907,07 27,8 93 809.75 977,76 44,4 14 976.44 54 90481 27,7 94 806,97 43,4 15 975.1 42,5 55 902,55 27,6 95 804,1 16 973.63 41 ,6 56 900,28 27,5 86 801 ,27 17 972,54 57 897,99 27,3 97 798,36 40,7 18 971 ,24 58 895,70 27,2 98 795,38 a9 19 58 27,1 99 792,35 893,40 9699 =,1 20 891 968,61 60 27.0 00 789,24 383 21 967,27 37,7 61 26.9 01 786,1 888,78 22 965,so 37,0 62 26,8 02* 783.02 8f3w.6 23 964.51 63 36,4 884,1 26.7 03” 779.91 24 963.09 64 35,8 881 ,79 26,6 &l* 776,80 25 961 ,63 35.2 65 879,45 26,5 05* 773,69 26 960,1 66 877,09 26.4 06* 770,68 34.7 27 67 874,73 26,3 958,61 34.2 28 957,05 33,7 66 872,37 26,2 28 955.44 33.3 69 26,1 =m 70 867,61 30 953,78 32.8 26,0 31 952,09 71 865,22 25,8 32,5 32 950.36 32,l 72 25,7 862,83 33 31 ,8 73 25.6 948s 66aa 74 34 31 ,4 858.02 25,5 94&n 75 36 844.92 31 855,60 25.4 36 30.9 76 853.1 25,3 94za 941 ,ll 37 30.6 77 850,74 25,2 38 78 25.1 939,1 30,3 64%~ 39 937,1 79 30,l 845,85 25.0 Tables and include imaginary alcohol contents of more than 00 % Those figures are necessary for the adjustment of alcoi represent the case of highly concentrated alcohol-water mixtures at temperatures between 20 and 40 OC, the density of which, formally, to alcohol contents above 00 % L Surface tension mN/m 24.8 24,7 24,6 24,5 24,4 24,3 24.2 24‘1 24.0 23.8 23,7 23.6 23,5 23,4 23,2 23.1 23,0 22.8 22,7 Z6 22.4 22,3 a2 Z1 ZO 21 ,9 21 bmeters ant corresponds I S0 4805-1 982 (E ) Tabl e % - Al coh ol vol u m e cen trati on by den si ty an d su rface ten si on at 20 OC vol kg /m 9 72 30 2, 5, 60 09 , l l 27 85 844 24, 9 6, 70 68, 31 60 , 5 61 27, 86 841 , 24, m N /m % VOI m N /m kg /m % vol kg l m N /m m3 % vol kg /m m N /m 9 5, 64 32 59 , 66 4, 62 27, 87 8 77 24, 993, 81 61 , 33 583 4, 63 27 88 56 24, 9 2, 41 59 , 34 56, 33, 64 899 99 274 89 2, 45 24, 991 , 06 57 35 55, 59 33 65 65 27, so 29 , 24, 89 73 56 , 36 54, 32, 66 5, 28 27 91 25 83 24, l 9J wQ 54 37 52 69 32, 67 89 27 92 22, 23 , 9 87, 55 38 51 , 32 68 48 27 93 8 85 23 , 9 85, 51 , 39 49 63 31 69 L? 66 , 26 , 94 8 23 , ! I 84, 71 50 , 40 48, 31 70 865 56 95 81 23 , 1 83 52 49 41 46, 42 31 71 883 6 96 80 7, 42 23 , 82, 48 , 42 44, 75 31 , l 72 =cw 97 80 , 27 23 , l 81 , 21 47 43 43 30 73 ' 877, 9 98 79 23 80 , 46 44 41 , 30 74 ' 875 40 99 79 25 =, 78 45 45 9 54 30, 75 872, 79 6, 00 789 , 24 2, 77 87 44 46 7, 73 30 76 870 , 1 01 " 783 75 a2 76, 79 43 47 , 88 30 , o 77 86748 2" 778 26 ZO 75, 71 42, 48 0 29, 78 864, 78 5, 3' 772 77 21 , 9 74 63 42 49 932, 09 29, 79 862 64 4" 767, 28 21 , 859 , 27 25, 856 , 46 25, 25, j 20 73 , 66 41 50 930, 29 , 80 21 72 , 48 40 , 51 28 , 29 , 81 22 71 , 40 40 52 26 , 29 , 82 85 , 62 23 70 39, 53 24 28, 83 85 , 74 25 24 69 , 21 8, 54 2, 28, 84 847, 82 25 i 25 68 8, 55 91 96 28 26 ! x6, 7, 56 764 28, 27 5, 81 7, 57 70 28, 28 =wJ 58 91 53 28, 29 =tM 5, 59 91 33 28, Tabl es represen t to al coh ol th e an d case ten ts i n cl u d e of highly above i m ag i n ary al coh ol cen trated 06 % ten ts al coh ol -water of m ore m i xtu res th an 00 % ; Th ose at tem peratu res fi g u res between are n ecessary 20 an d 40 for OC, th e th e ad j u stm en t den si ty of wh i ch , of al coh ol om eters form al l y, an t correspon ds I S0 Th i ckn ess G radu ati on l i n es on e-fi fth l i n es of or of th e 0, g rad u ati on sh al l be d i stan ce mm, of u n i form between wh i chever is l i n es th i ckn ess th e n ot cen tres of Th e exceedi n g ad j acen t N om i n al N u m beri n g of g radu ati on al coh ol sh al l line be in th e to a whol e unit percen t of 00 th e % N om i n al i n stru m en t ran g e sh al l n om i n al Th u s, 00 th e % coveri n g two at of An i n stru m en t to both ten n om i n al sh al l addi ti on al en d s of i ts ran g es ad di ti on al n om i n al an d each carry seri es a of l i m i ts m as tabl es be of 98 % m as g radu ati on s beyon d in body in vol u m e of vol u m e Scal es sh al l th e m eet th e of i n stru m en ts 60 is to to 03 % m as m ay % be m as 95 to i n cl u d ed , to d i m en si on al 80 sh al l (see n ote body vol u m e a l on g sh al l th ere req u i rem en ts gi ven be so stru cted as to resu l t fi g u re is to of 95 m eet th e to % vol m ay 03 % be vol 95 to i n cl u d ed , (see n ote to di m en si on al req u i rem en ts g i ven of th e of i n stru m en ts 60 to 80 sh al l be so stru cted as to resu l t ml for be of g radu ati on l i n es a) Every fi fth a g radu ati on b) th ere sh al l be fou r line sh ort sh al l l i n es be a l on g between l i n e; two secu ti ve l i n es fi g u re Th i ckn ess of g radu ati on l i n es l i n es line sh al l be a l on g G radu ati on l i n e; m ed i u m line between two secu ti ve l i n es be l on g l i n es of or 0, th e sh a! l be di stan ce mm, of u n i form between whi ch ever is th i ckn ess th e cen tres n ot of exceedi n g adj acen t scal e l ess fou r sh ort l i n es between secu ti ve N u m beri n g th e I.1 l i n es of g rad u ati on th e sh al l be d i stan ce of 0, mm, N u m beri n g gradu ati on sh al l be of line g radu ati on l i n es u n i form is correspon di n g in sh al l scal e be l i m i ts) n u m bered , m ay be an d parti al l y (wi th th e n u m bered excepti on if of requ i red th i ckn ess n ot N om i n al th e cen tres of ran g e exceedi n g ad j acen t n om i n al ran g e of th e al coh ol -th erm oh yd rom eter is 785 to scal e kg /m s l ess g radu ati on n u m bered line l i n es between wh i chever ten th n om i n al Th e of of l i n es 80 Each ran g es al coh ol om eter ran g e sh al l Len g th l on g g radu ati on sh al l an d Th i ckn ess G radu ati on al coh ol g radu ati on s scal e Scal es n om i n al Req u i rem en ts Every or i ts l i n es; m edi u m l i n es of to th erm o-al coh ol om eters g radu ati on ten th th ere on e-fi fth addi ti on al ml for of every ten en d s in on e-fi fth (See to both 3) i n stru m en ts c) two at addi ti on al n om i n al an d Th e cen trati on Len g th 6) of An a fi g u re (See a) carry l i m i ts al coh ol -th erm oh yd rom eters Requ i rem en ts for vol Th e a % 3) i n stru m en ts fi g u re be Di m en si on s Th e in Di m en si on s Th e sh al l Each scal e al coh ol om eter ran ge i n stru m en t ran g es n om i n al th e seri es coveri n g fu l l Th e each sh al l n om i n al vol tabl es of l i n es correspon d i n g n u m bered ran g e i n stru m en t Th u s, Each ran g es n om i n al Each l ess g radu ati on (E ) scal e beyon d 4805-1 982 fu l l l i n es to a whol e unit per cen t of Di m en si on s Th e in i n stru m en ts fi gu re sh al l m eet th e di m en si on al req u i rem en ts g i ven ISO 48051 982 (El I- Dimensions in millimetres 93 Alcoholometer a = b = c = CJ = nominal range 0.2 U 0.33 U 0.5 u Stem circumference & a vl b L-4 Figure - Thermo-alcoholometers Lengths of graduation lines Thermometer nominal range : - - Figure - Thermo-alcoholometers - Dimensions I SO4805-1 992(E) Dimensions Hydrometer a = U c = 0, u U = stem i n m il ti metres nominal range circumference L-l C Thermometer Figu re - Alcohol-thermohydrometers Len gth s of gradu ation nominal range lines Figu re - Alcohol-thermohydrometers Dimensions