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NEFRAS with 50/170 GOST 8505-80 (with amendments 1-3)

Indicators Standard
1 fractional composition
 initial temperature of distillation, , not lower 50
 10% distils at temperature, , not higher 88
 50 % distils at temperature, , not higher 105
 90 % distils at temperature, , not higher 145
 97,5 % distils at temperature, , not higher 170
 residue in the flask after distillation, %, max 1,0
2 mass fraction of sulfur, %, max 0,02
3 iodine value, g of iodine per 100 g of nefras, max 1,3
4 content of soluble acids and alkali no
5 acidity, mg per 100 cm3 of nefras, max 0,5
6 content of soluble gum, mg on 100 cm3 of nefras, max 2
7 test on copper plate resistant
8 content of mechanical impurities and water no
9 test on formation of oil spot resistant