(National Physical Laboratory - NPL) . 99,7% , , ...
(National Physical Laboratory - NPL) . 99,7% , , .
99,4% . - 97,5%. , , 95-96% . , NPL Super Black, 25 , .
New Scientist, . . , .
, NPL, , : "NPL Super Black . . , ".
, . 50 , . , . NPL Super Black , , .
. " , - (Nigel Fox), NPL. - ".
: Inopressa.


