ISO-12194-1995.pdf

international standard is0 12194 first edition 1995-09-i 5 ansi internat ihc set leaf tobacco - determination of strip particle size tabac en feuilles - dhermination de la taille des particules de strips reference number is0 1219 the test report shall include all information necessary for the complete identification of the sample. is the sum of the individual masses, in grams. 4 copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- 0 is0 is0 12194:1995(e) annex a (informative) typical sieving screen set-ups figures a.1 to a.3 show diagrams of typical sieving screen set-ups available commercially. they show the oct/w.s. tyler screen conversion kit, cardwell-type lab. shaker retrofit. ) 1) this information is given for the convenience of users of this international standard and does not constitute an endorsement by is0 of the equipment named. 5 copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- dimensions in millimetres 355.6 i i_ 177.8 ref. i discharge chute dp g bolt-tightening sequence *i material flow maintain cloth position during installation bolt-tightening sequence * l 209.6 4 1073.2 1090.8 *i sequence i) position cloth item no.10: centre and length. 2) finger-tight bolts mk o, a, 8. c. ii maintaining centre position. 3) tighten item no.7 hex nut in alternating pairs a-b, c-d, a-b, c-d. etc. / / f l existing pan 3,t* 5 / 6,7,8,9 1 io l cloth 7- pan existing /-pan edge 2 / torque setting 20.3 n*m . (see bolt-tightening sequence) locateandsecuredeflectorto existing pan. customer to drill 0 6.35 mm hole through pan and deflector. fasten with items 3,4 and 5. copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- assembly number item part number quantity description of part 107101 1 rep. 8 2 107107 8 3 107241 8 4 zal1082 8 5 za11092 8 6 zai 1053 16 tension rail deflector screw hex nut lockwasher carr. bolt 7 zai 1055 16 heavy hex nut i i 8 za11114 16 9 ial 1096 16 flat washer lockwasher 0 10 108280 1 sieve cloth set i i om 11 107437 1 om 12 107438 1 bottom rake assembly hopper extension ii: items not shown. figure a.1 - conversion kit installation (typical for all four decks) copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- co dimensions in millimetres existing chute typ. all 4 decks tandard tyler “a” or “c” hook “u” binding no.26 ga. 04 ss typical both ends 25.40.12.70 6.35 and 2.36 cloth sections w. s. tyler conversion kit. astm e-ii ss cloth set consists of the following: 25.40 cl deck 1 (top) 12.70 cl deck 2 6.35 cl deck 3 cl deck 4 (bottom shown) existing pan bottom deck only: alter per sheet no.2 of this assembly existing chute bottom deck only: alter per sheet no.2 1 171.5 ref. ,- “u” binding cloth opg. 193.7 ref. 146.1 typical plan view all 4 decks a- ) .p - -_ ,- -f- - -l cloth a- cloth spec. tag existing chute “u” binding cloth hook existing pan wire cloth cloth hook material flow cloth opening .-.-. position wire cloth as shown aligning approx. centring marks std. tyler “a” or “c” hook 209.6 - cloth opening 1073.2 existing pan /-v binding - i- i l copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- step assembly sequence assembly sheet no. 1 remove alternate cloth sections 2 alter bottom deck 2 3 alter all 4 decks: locate mounting holes 3 for tyler conversion kit 4 position tyler cloth sections 1 mark centres 5 assemble tyler conversion kit 3 figure a.2 - tyler cloth location (typical for all four decks) copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- n $ z d i, i d ;i: c z -a 5 0” : 3 e sb customer to remove this area of existing chute and bracket, both sides notch both sides existing bottom pan m min., 0 6.4 mm max. flat-head cxts+tng chu existing chute bracket rivet provided by customer; 4 required 7 f chute as shown existing pan: existing pan: typ. 4 decks typ. 4 decks - i i ii , l- jlt 991 409 -j 133.4 133.4 alternative alternative cloth frame: cloth frame: typ. 4 decks7 typ. 4 decks7 l-t hate (4) for alternative cloth frame: i i!- , customer to alter and position - -. 1 existing bottom pan: drill through clearance hole for flat-head rivet (4) -i i- 1092.2 104.2 _i cloth opening - - ;g j; $ ii ii ii ii ii i! ii ii ii ii ii -11 ix r existing pan l! 3 s $ 2 5. 3 g -. 2 r; $ copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- 0 is0 is0 12194:1995(e) b. 1 procedure annex b (informative) method of checking screen stroke the strips are mounted on the sides of each screen in the centre. with the machine running at (525 +5) vibrations per minute, observe the circles (see figure b.l). during running, one observes two circles at each position which appear to overlap to varying degrees. note the reading of the circle where the circumferences of the pair just touch but do not overlap. for correct operation, this should give a reading of (13,l f 1,2) mm. if the machine is operating outside this range, check for slackness in the drive mechanism, tray mass or spring stiffness. b.2 routine check check once a day that the stroke of each screen is correct. check once a day that the speed of the eccentric drive shaft is (525 rtr 5) r/min. check once a day that the screens are not distorted in any way. the screen must be replaced by a screen conforming to is0 3310-i as soon as there is a visible sign of wear or damage. check once a day that the tobacco discharge time is (450 f 5) s. 000 11.9 mm 13.1 mm 14.3 mm figure b.l - stroke indicator 11 copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- is0 12194:1995(e) 0 is0 annex c (informative) 12.7 h hl 2 n - ri i ii 5 “. 2 i 0 7,9 design of breaker bars dimensions in millimetres 7 x 50.8 i= 355.6) t- 431.8 381 p. $! v i l. l 4 -_-., _- -. _-. -. - -. _-_, tc pi u 1 1 1 u 11 9.53 note -vertical fingers of this unit should be installed exactly,50;,8 mm above the horizontal fingers of the spreader assembly. figure c.l - breaker harsh example z 12 copyright international organization for standardization provided by ihs under license with iso licensee=nasa technical standards 1/9972545001 not for resale, 04/21/2007 02:58:21 mdtno reproduction or networking permitted without license from ihs -,-,- 0 is0