MIL-DTL-83133H
APPENDIX B
HYDROPROCESSED ESTERS AND FATTY ACIDS SYNTHESIZED PARAFFINIC KEROSENE
(HEFA-SPK)
B.1 SCOPE
B.1.1 Scope. This Appendix addresses requirements of 100 percent HEFA-SPK derived from
manufactured products of hydroprocessing animal fat, plant oil, or algal oil triglycerides (esters and fatty
acids (identified in 3.1.1) and test requirements in addition to Table I for finished fuels containing any
amount of HEFA-SPK (not to exceed 50 volume percent). This Appendix is a mandatory part of the
specification. The information contained herein is intended for compliance. Fuel blends with any
percentage of HEFA -SPK will be designated as "JP-8/HEFA." Blending of the HEFA-SPK with at least
50% petroleum sourced JP-8 must occur prior to any further blending with fuel containing any other
synthetic blending component.
B.2 REQUIREMENTS FOR HEFA-SPK
B.2.1 Chemical and physical requirements. The chemical and physical properties of the HEFA-
SPK shall be in accordance with those specified in Table B-I.
B.2.2 Additives.
B.2.2.1 Antioxidants. Addition of antioxidants shall adhere to the criteria specified in 3.3.1.
B.2.2.2 Static dissipater additive. If 100% HEFA-SPK is to be transported prior to blending with
refined hydrocarbon distillate fuel, static dissipater additive shall be injected in sufficient concentration to
increase the conductivity of the fuel to within the range specified in Table B-I. The point of injection of the
additive shall be determined by agreement between the purchasing authority and the supplier. The
following electrical conductivity additive is approved: Stadis® 450 marketed by Innospec Fuel Specialties
LLC (formerly Octel Starreon LLC), Newark, DE 19702.
TABLE B-I. HEFA-SPK chemical and physical requirements and test methods.
Property
Min
Max
Test Method
Aromatics, mass percent
0.5
D2425
1
D2622, D3120, or D5453
Sulfur, total, mass percent
0.0015
Cycloparaffins, mass percent
15
D2425
2
Paraffins, mass percent
D2425
Carbon and Hydrogen, mass percent
99.5
D5291
Nitrogen, mg/kg
2
D4629
Water, mg/kg
75
D6304
Phosphorus, mg/kg
0.1
UOP 389
Metals (Al, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Mo,
0.1 per
Na, Ni, Pb, Pd, Pt, Sn, Sr, Ti, V, Zn), mg/kg
metal
UOP 389
Halogens, mg/kg
1
D7359
Total acid number, mg KOH/g
0.015
D3242
1
Existent gum, mg/100 mL
7.0
D381 or IP 540
Fatty Acid Methyl Ester (FAME), mg/kg
5
IP 585 or IP 590
19
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