GOST R ISO 5799-2006 Direct-exposing medical and dental radiographic film process systems Determination of ISO speed and ISO average gradient《医疗与牙科直接曝光的射线底片 处理系统 ISO速率和ISO平均斜率的测定》.pdf

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6、=102c45Ks.(1) log10Ks 1.5) , - . - 100 , 1,0 -, 10 (). 10 = 8,732 c180105, , (1), , 114,5.4 57992006 1 1 log10Ks S 5,05 4,96 10004,95 4, 86 8004,85 4,76 6404,75 4,66 5004,65 4,56 4004,55 4,46 3204,45 4,36 2504,35 4,26 2004,25 4,16 1604,15 4,06 1254,05 3,96 1003,95 3,86 803,85 3,76 643,75 3,66 503,65 3,56 403,55 3,46 323,45 3,36 253,35 3,26 203,25 3,16 163,15 3,06 123,05 2,96 102,95 2,86 82,85 2,76 62,75 2,66 52,65 2,56 46.1.1 log10Ks, - , , , .