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Gradus API odinicya vimiru gustini nafti rozroblena Amerikanskim naftovim institutom Vimiryuvannya v gradusah API dozvolyayut viznachiti vidnosnu gustinu nafti po vidnoshennyu do gustini vodi pri tij zhe temperaturi Za viznachennyam vidnosna gustina dorivnyuye gustini rechovini podilenoyi na gustinu vodi gustina vodi prijmayetsya rivnoyu 1000 kg m3 Tozh yaksho gustina u gradusah API bilshe 10 to nafta legsha i plavaye lezhit na poverhni vodi i yaksho menshe 10 to tone Gustina u gradusah API ta vidnosna gustina pri bazovij temperaturi 60 F 15 6 C pov yazani chitkim arifmetichnim rivnyannyam i mozhut buti legko peretvoreni odin na odnogo Formuli rozrahunku API red gradusi API vidnosna gustina gustina kg m 8 1 014 10129 1 007 100510 1 000 99815 0 966 96420 0 934 93225 0 904 90230 0 876 87435 0 850 84840 0 825 82345 0 802 80050 0 780 77855 0 759 75758 0 747 745spivvidnoshennya mizh gustinoyu v gradusah API pitomoyu vagoyu i gustinoyu pri temperaturi 60 F 15 6 C Formula dlya rozrahunku gradusiv API z vidnosna gustina SG taka API gravity 141 5SG 131 5 displaystyle text API gravity frac 141 5 text SG 131 5 nbsp I navpaki vidnosnu gustinu naftovih ridin mozhna otrimati za znachennyam gradusiv API yak SG at 60 F 141 5API gravity 131 5 displaystyle text SG at 60 circ text F frac 141 5 text API gravity 131 5 nbsp Takim chinom vazhka nafta z pitomoyu vagoyu 1 0 tobto z takoyu zh gustinoyu yak chista voda pri 60 F maye gradus API 141 51 0 131 5 10 0 API displaystyle frac 141 5 1 0 131 5 10 0 circ text API nbsp Internet resursi red Comments on API gravity adjustment scale Instructions for using a glass hydrometer measured in API gravity Otrimano z https uk wikipedia org w index php title Gradus API amp oldid 39112836