MIL --- DTL --- 3284F(EA)
3.2 Chemical and physical characteristics. The dye shall conform to the chemical and
physical characteristics of table I. Yellow corn dextrin conforming to MIL --- D --- 3994 can be
used to adjust the bulk density of the dye. Only the minimum amount of dextrin required to
obtain the apparent density shall be used.
TABLE I. Chemical and physical requirements.
Characteristic
Requirement
Test Paragraph
Purity, dry basis, percent by weight, minimum
90
4.4.1
Heavy metal content
4.4.4
Arsenic (As), ppm maximum
<3
Cadmium (Cd), ppm maximum
< 15
Mercury (Hg), ppm maximum
<3
Lead (Pb), ppm maximum
< 20
Chromium (Cr), ppm maximum
< 30
Other Heavy metals, ppm maximum
< 10
Volatile matter, percent by weight, maximum
2.5
4.4.3
Particle size distribution:
4.4.2
Average particle size, microns, maximum
45
Average particle size, microns, minimum
30
Particles less than 10 microns, percent maximum
20
Distribution shape
Single mode
Apparent density, grams per milliliter (dry basis)
0.40 ¦ 0.10
4.4.5
Dextrin content, percent by weight maximum
10.0
4.4.6
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classi-
fied as follows:
(a) First article inspection (see 4.2)
(b) Conformance inspection (see 4.3)
4.2 First article inspection.
4.2.1 Lotting. The first article lot shall consist of at least 970 kg of Disperse Red Dye manu-
factured using the same methods, materials, equipment, and processes as will be used during
regular production. The first article sample shall be submitted for inspection and approval in
accordance with the terms of the contract. If there is any change of vendors, methods, materi-
3
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