MIL-PRF-27404D
APPENDIX A
��2� × 100
%�2� =
∑ ��
���� =The measured area of the MMH peak multiplied by its signal attenuation factor.
where
��2� = The measured area of the H2O peak multiplied by its signal attenuation factor.
∑ �� = The sum of all of the measured peak areas multiplied by their respective signal attenuation
factors.
Assumption: The thermal conductivities of all components in the sample are equal.
A.2.1.4 Equipment and Reagents. The following equipment and reagents shall apply as test
conditions of A.2.
a. Equipment:
(1) Gas chromatograph with a thermal conductivity detector (TCD).
(2) Agilent ChemStation or equivalent.
(3) Packed column may be commercially obtained from Grace Discovery Sciences, 2051
Waukegan Road, Deerfield IL 60015-1899.
b. Reagents:
(1) Tenax®-TA column packing 60/80 mesh.
A.2.2 Gas chromatographic method - capillary column.
A.2.2.1 Procedure. A 30 meters (m) x 0.53 mm, 1.00 µm film thickness Restek Stabilwax-DB
capillary column, a TCD, and a split/splitless injector with a glass wool packed split liner shall be used.
Table A-1 depicts recommended parameters for initial setup. These parameters may vary depending on
GC system and detector brands, and may be adjusted to provide adequate component resolution.
The elution order of possible sample components is as follows:
Air > ammonia > methylamine > unsymmetrical dimethylhydrazine (UDMH) > MMH > water > hydrazine >
aniline
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