MIL-DTL-46162E
3.2.1.1.3 Pour-point depressant or flow improver. Pour-point depressants are allowed if
necessary to meet requirements of this specification. A pour-point depressant or flow-improver
additive may be used to meet the pour point requirement specified in table I.
3.2.1.2 Additives for type II fuel. Additive use shall be as specified in 3.2.1.2.1 through
3.2.1.2.5.
PRECAUTION
When mixing additives; to prevent possible reaction among the concentrated
forms of different additives for type II referee fuel, the fuel supplier is cautioned
about the indiscriminate co-mingling of the additives prior to their addition to
the fuel.
3.2.1.2.1 Antioxidants. Immediately after processing and before the fuel is exposed to the
atmosphere (i.e., during rundown into feed/batch tankage), add an approved antioxidant in order
to prevent the formation of gums and peroxides after manufacture. The concentration of
antioxidant to be added shall be:
a. Not less than 17.2 milligrams (mg) nor more than 24 mg of active ingredient per
liter (L) of fuel (6 to 8.4 pounds (lb)/1000 barrels) to all JP-8 fuel that contains
blending stocks that have been hydrogen treated.
b. At the option of the supplier, not more than 24 mg of active ingredient per liter of fuel
(8.4 lb/1000 barrels) may be added to JP-8 fuels that do not contain hydrogen treated
blending stocks.
3.2.1.2.1.1 Antioxidant formulations. The following antioxidant formulations are approved:
a.
2,6-di-tert-butyl-4-methylphenol
b.
6-tert-butyl-2,4-dimethylphenol
c.
2,6-di-tert-butylphenol
d.
75 percent (%) min 2,6-di-tert-butylphenol
25 % max tert -butylphenols and tri- tert -butylphenols
e. 72 % min 6- tert -butyl-2,4-dimethylphenol
28 % max tert -butyl-methylphenols and tert -butyl-dimethylphenols
f. 55 % min 2,4-dimethyl-6-tert-butylphenol and
15 % min 2,6-di-tert-butyl-4-methylphenol and
30% max mixed methyl and dimethyl tert-butylphenols
3.2.1.2.2 Metal deactivator. A metal deactivator, N,N'-disalicylidene-1, 2-propanedlamlne
or N,N'-disalicylidene-1, 2-cyclohexanediamine may be blended into the fuel in an amount not to
exceed two pounds active ingredient per 1000 barrels of fuel (22 mg/gallon (gal) (US),
26 mg/gal (UK), or 5.8 mg/L).
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