1、 KS E ISO 20905 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS / KS E ISO 20905 :2007 (2012 ) 2007 11 30 http:/www.kats.go.krKS E ISO 20905:2007 : ( ) ( ) () () ( ) : : (http:/www.standard.go.kr) : :2007 11 30 :2012 12 25 20120796 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS E ISO 20905:2007 (2
2、012 ) / Coal preparationDetermination of dust/moisture relationship for coal 2004 1 ISO 20905, Coal preparationDetermination of dust/moisture relationship for coal , . 1 . (DEM) / , A 10 . 2 . . KS E ISO 589, KS E ISO 1953, ISO 78861, Sterile hypodermic syringes for single usePart 1:Syringes for man
3、ual use 3 , . 3.1 150 m 3.2 (Dust Extinction Moisture:DEM) DEM / 10 DEM . 4 . KS E ISO 20905:2007 a) , (minimum-free-space) . b) . c) , (minimum-head-space) . d) . e) . f) . (MSDS) . 5 . 5.1 , (humidity- and temperature-controlled laboratory) (632) %, (202) 5.2 (dust-test apparatus) 1 , 30 cm 30 cm
4、. 29 r/min, 175 L/min. 5.3 (double filter bags) 5.4 (electronic thermohydrograph) 5.5 (tachometer) 5.6 (laminar flow differential-pressure manometer) 5.7 5.8 250 mL , , 5.9 0.01 g , 1 g . 5.10 5.11 (minimum-free-space drying oven) 6 . 2 KS E ISO 20905:2007 7 , 6.3 mm . . 1.2 kg , . / 8 (subsamples)
5、. , 1.2 kg . 1.2 kg ( ), KS E ISO 1953 , . :mm 1 (rubber seal) 7 2 (rotating drum) 8 3 , 30 r/min 9 4 10 , 170 L/min 5 25 mm 11 7 mm 6 mm 6 (bag) 12 1 3 KS E ISO 20905:2007 8 8.1 KS E ISO 589 1.2 kg (M 1 ) . 8.2 1 % . 1.2 kg . a) M 1 . . . . (5.1) 24 . , W a . W a = m 2 m 1 1 2 1 2 100 100 M M m m M
6、 1 : (8.1 )(%) M 2 : (%) m 1 : (M 1 )(g) m 2 : (M 2 )(g) W a : ( ) b) M 1 . . . . . , 24 . , 40 , 24 . 9 . , . mg/kg . . 4 KS E ISO 20905:2007 a) . b) 8.2 , . c) . d) ISO 78861 ( ) . e) , (5.7). , 1 . f) 2 , . g) , . h) 3 . i) , . j) , 24 . . 10 (dust determination) 10.1 . a) (5.4). b) (piping) (5.2
7、) . c) (filter bag)(5.3) ( 175 L/min. 3.5 m/s 12.6 km/h ). d) (5.5) , . 29 r/min. . 10.2 (dust testing) 1.2 kg . a) 24 (5.3) . , 0.01 g , (5.2) . B . b) 2 . c) 1 000 g , 0.01 g . d) . lifter . . e) . f) , . 5 KS E ISO 20905:2007 g) 10 , . h) , 13 . i) (5.3) . (5.1) , 24 . j) (5.10) , . k) b) . l) ,
8、. m) 24 . . , . . 11 N . 000 100 s a b M M M N M b :24 (g) M a : (g) M s : (g) 12 (drum) , . 13 10 %(), 0.2 %, 6 %. 6 KS E ISO 20905:2007 A () A.1 , . A.2 / . A.1 . , . (24 ) . / A.1 / . (DEM) 10 . DEM 8.8 % . A.3 A.2 / . . , A B 8 % 1 000 . B , / 10 9 %, A 14 %. , B . 7 KS E ISO 20905:2007 A.1 (10)
9、 (24) g g g % % g g g g 21 22 48.40 48.43 376.12 359.60 373.97 357.45 4.44 4.44 96 12 18 23 49.22 360.22 358.16 4.19 4.4 1 000.26 29.95 37.40 744.81 37.30 735 30 31 48.65 48.47 359.76 355.85 357.28 353.37 5.10 5.12 96 12 18 32 48.48 356.88 354.53 4.85 5.1 1 000.38 29.93 34.65 471.82 34.51 458 24 25
10、48.51 48.28 363.87 361.37 360.92 358.09 6.08 6.79 96 12 18 26 48.41 366.15 363.09 6.32 6.4 1 000.23 29.62 31.09 146.97 30.92 130 27 28 48.27 48.36 355.43 358.86 351.91 355.59 7.29 6.76 96 12 18 29 48.22 362.17 358.68 7.24 7.0 1 000.73 29.33 29.90 56.96 29.76 43 33 34 48.27 48.27 356.81 365.46 352.83
11、 360.92 8.25 9.41 96 12 18 35 48.82 360.88 357.09 7.76 8.8 1 000.17 30.23 30.44 21.00 30.30 7 36 37 48.39 48.37 372.11 377.23 367.58 372.48 9.36 9.82 96 12 18 38 48.40 380.29 376.19 8.47 9.6 1 000.28 30.32 30.50 17.99 30.38 6 N M 2 DEM A.1 / 8 KS E ISO 20905:2007 9 N M 2 DEM A.2 / 10 B () : : : Iden
12、tity ( ) (g) (g) (g) (g) (%) (%) KS B ISO 20905:2007 (%) (g) (g) (%) (g) (%) 10(g) (g) () (%) 24(g) / (g) : : : / 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS E ISO 20905 :2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Coal preparationDetermination of dust/moisture relationship for coal ICS 73.040 Korean Agency for Technology and Standards http:/www.kats.go.kr