1、 KS E ISO 50691 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 1: KS E ISO 50691 :2007 (2012 ) 2007 11 30 http:/www.kats.go.krKS E ISO 50691:2007 : ( ) ( ) () () ( ) : : (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 50691:2007 (
2、2012 ) 1: Brown coals and lignites Principles of sampling Part 1 :Sampling for determination of moisture content and for general analysis 1983 1 ISO 50691, Brown coals and lignitesPrinciples of sampling Part 1:Sampling for determination of moisture content and for general analysis , . 1 “ (coal)” .
3、, . KS E ISO 1988 . 2 . . KS E ISO 12131, 1: KS E ISO 12132, 2:, KS E ISO 1988, KS E ISO 5068, KS E ISO 50692, 2: 3 3.1 1 . ( , ), ( ). KS E ISO 50692 1 . 3.2 . KS E ISO 50691:2007 . 3.3 (precision) 95 % . 1 . 1 20 % 1/10 ( , dry basis) 20 % 2 % 20 % 1/10 ( , as received) 20 % 2 % 3.4 (minimum mass
4、and minimum number of increments) 3.4.1 P kg . P = 0.06 D D mm , P a) 12.5 mm 0.5 kg b) 150 mm 10 kg . 3.4.2 2 2 500 t . 2 . 2 . 2 500 t . a) , 2 500 t . . b) . . 500 2 ton) ( 2 16 32 16 48 16 64 2 KS E ISO 50691:2007 4 4.1 4.1.1 . , 80 mm . (increment) . 4.1.2 4.1.2.1 . . 4.1.2.2 . 4.1.2.3 3/4 . .
5、4.1.2.4 . , . 4.1.2.5 , . (flaptype sampler) , (collector section) :(chute). 4.1.2.6 , , , . 4.1.3 4.1.3.1 . (stationary sampling) . 4.1.3.2 . 4.1.3.3 . 4.1.3.4 2.5 . 50 mm . 4.1.3.5 20 cm . 4.1.3.6 . 3 KS E ISO 50691:2007 4 4.1.4 4.1.4.1 , . 4.1.4.2 . 4.1.4.3 . 4.1.4.4 . 4.1.4.5 . 4.2 (sampling fro
6、m wagons and barges) , , KS E ISO 1988 . . 2 , 1 . , . 4.3 (sampling from stock-piles) , KS E ISO 1988 . 5 (gross sample) . . . 1: 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS E ISO 50691 :2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Brown coals and lignites Principles of samplingPart 1 :Sampling for determination of moisture content and for general analysis ICS 73.040 Korean Agency for Technology and Standards http:/www.kats.go.kr