MIL-DTL-5624V
TABLE II. Chemical and physical property requirements and test methods Continued.
GRADE
GRADE
ASTM or IP Test
Property
JP-4
JP-5
Method
D23861/, D59726/,
Freezing point, ° C, max
-46
-58
D7153, or D7154
Viscosity, at -20° C, max, mm2/s
D445
-------
8.5
D3338, D4529, or
Net Heat of combustion, MJ/kg, min
42.8
42.6
D48091/
Calculated Cetane Index 7
-------
Report
D976 or D4737
D37018/or
Hydrogen content, mass percent, min
13.5
13.4
D71711/
Smoke point, mm, min
20.0
19.0
D1322
Copper strip corrosion, 2 hr at
No. 1
No. 1
D130
100° C, max
Thermal stability:
D32419/
Change in pres. drop, mm of Hg,max
25
25
310/
310/
Tube deposit code, less than
D3811/ or
Existent gum, mg/100 mL, max
7.0
7.0
IP 54011/
D2276 or
Particulate matter, mg/L, max
1.0
1.0
D54521/,12/
12/
1513/
Filtration time, minutes, max
10
Water reaction interface rating, max
lb
-------
D1094
14/
14/
D3948 or D72241/
Micro Separometer rating, min
Fuel system icing inhibitor
D500615/
volume percent min
0.10
0.10
volume percent max
0.15
0.15
Fuel electrical conductivity, pS/m
150 to 60016/
------
D2624
allowable range
Particulate counting, cumulative
channel counts17/
≥ 4 μm
------
Report
IP 564, IP 565, or
≥ 6 μm
------
Report
IP 577
≥ 14 μm
------
Report
≥ 21 μm
------
Report
≥ 25 μm
------
Report
≥ 30 μm
------
Report
1/
Referee Test Method.
2/
A condenser temperature of 0 to 5° C shall be used for the distillation of JP-5 fuel. For JP-4,
group 3 test conditions shall be used.
10
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