MIL-DTL-16884N
APPENDIX A
TABLE A-II. Other detailed requirements; hydroprocessed SPD.
Requirement
Characteristic
ASTM Method
Minimum
Maximum
Hydrocarbon Composition
15 1/
Cycloparaffins, mass %
D2425
Aromatics, mass %
0.5
D2425
Paraffins (normal and iso), mass %
Report
D2425
Carbon and Hydrogen, mass %
99.5
D5291
Non-Hydrocarbon Composition
Nitrogen, mg/kg
10
D4629
Sulfur, mg/kg
15
D5453, D2622
Metals 2/ (Al, Ca, Co, Cr, Cu, Fe,
0.1 per
D7111
Mg, Mn, Mo, Ni, P, Pb, Pd, Pt, Sn,
metal
Sr, Ti, V, Zn), mg/kg
Alkali Metals and Metalloids 2/
1 total
D7111
(B, Na, K, Si, Li), mg/kg
NOTES:
1/
Maximum cycloparaffin composition is based on current experience with the approved
synthetic fuels and is within the range of what is typical for refined diesel fuel.
All detected metals below the detection limits shall be considered as 0 µg/kg. Only the
2/
metals whose measured values are higher than their respective detection limits shall be
considered as legitimate values for calculation.
A.4.3 Additives. When specified (see 6.2), information concerning the type and dosage rate of each additive
used shall be made available.
A.4.4 Antioxidants. Antioxidant shall be added as soon as practicable after hydroprocessing or fractionation
synthesizing and prior to the product or component being passed into storage to prevent peroxidation and gum
formation after manufacture. Not less than 17.2 mg/L or more than 24.0 mg/L of active ingredient shall be used.
The following antioxidant formulations are approved:
2,6-di-tert-butyl-4-methylphenol
a.
b.
6-tert-butyl-2,4-dimethylphenol
c.
2,6-di-tert-butylphenol
d.
75 percent minimum 2,6-di-tert-butylphenol
25 percent maximum tert-butylphenols and tri-tert-butylphenols
e.
72 percent minimum 6-tert-butyl-2,4-dimethylphenol
28 percent maximum tert-butyl-methylphenols and tert-butyl-dimethylphenols
f.
55 percent minimum 2,4-dimethyl-6-tert-butylphenol and
15 percent minimum 2,6-di-tert-butyl-4-methylphenol and
30 percent maximum mixed methyl and dimethyl tert-butylphenols
A.4.5 Thermal stability. The thermal stability test shall be conducted using ASTM D3241 (Thermal
Oxidation Stability of Aviation Fuels Test). The heater tube shall be rated visually (see Test Method for Visual
Rating of ASTM D3241 Heater Tubes Annex of ASTM D3241).
A.4.5.1 Test conditions.
a.
Minimum heater tube temperature at maximum point: 325 °C
16
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