FIELD: analytic chemistry, namely, determination of fuel in air. SUBSTANCE: filler of indicator tube for determination of unsymmetrical dimethylhydrazine comprises adsorbent and colored reagent. Mixture of silica gel and zeolite is used as said adsorbent, mass ratio of silica gel and zeolite being 0.8-1.2. Solution of silver nitrate is used as mentioned above colored reagent, mass ratio of colored reagent and adsorbent is 2.0-3.0. EFFECT: improved selectivity. 4 tbl
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