MIL-PRF-81298E
3.2 Materials. The dyes shall consist essentially of liquid oil soluble dyes, completely
organic and containing no reactive amino groups. The contractor shall certify that no
carcinogenic or potentially carcinogenic constituents are present as defined under the Hazard
Communications Standard (HCS) (29 CFR 1910.1200). Certificate to this effect shall be made
available to the contracting officer or the contracting officer's designated representative. The
composition of the dye shall be made available upon request of the using activity. The product
shall be entirely suitable for the intended use (see 6.1).
3.3 Chemical and physical requirements. The chemical and physical requirements of
the finished dyes shall conform to the requirements listed in section 3, Table I and Table II when
tested in accordance with the applicable test methods. Requirements contained herein are not
subject to correction for test tolerances.
3.4 Storage stability. The finished dyes shall remain stable and conform to the
requirements in section 3, Table I and Table II as applicable for at least one year when tested in
accordance with 4.4.5.
3.5 Thermal stability. In addition to the requirements of Table I and Table II, Type I
(Red), Type II (Yellow) and Type III ( Yellow/Green Fluorescent) dyes shall not degrade the
thermal stability of MIL-DTL-5624 or MIL-DTL-83133 fuels, when tested in accordance with
ASTM D3241 (see 4.4.2). This test is applicable only for the first article sample.
3.6 Color. The liquid dye shall be Type I (Red), Type II (Yellow) or Type III
(Yellow/Green Fluorescent) as specified (see 6.2).
3.7 Workmanship. When examined visually, the liquid dye shall be completely
homogeneous material free from any insoluble matter.
TABLE I. Physical requirements and test methods for Type I Red and Type II Yellow Dye.
Requirements
Min
Max
Test Method
Moisture, mass percent
0.08
D6304
Flash point, open cup, °C
32
D1310
Flash point, closed cup, °C
25
D3278
Pour point, °C
-18
D97
1/
Color value (absorptivity)
Type I (Red)
30
Type II ( Yellow)
24
1/
Wavelength at maximum absorption,
nanometers (nm)
Type I (Red)
510
522
Type II ( Yellow)
423
442
D2276 2/
Contamination of aircraft fuel, mg/L
Type I (Red)
2.0
Type II ( Yellow)
1.0
Notes:
1/ See 4.4.3 for test procedure
2/ See 4.4.1 for test procedure
4
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business