TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: In the textile material (A1), the chemochromic pigment is combined with at least one additive selected from electrostatically dissipative additive, a salt, a polyelectrolyte, an ionic or non-ionic surfactant, and/or carbon nanotubes; and the chemochromic pigment is combined with aerogel or xerogel. Preferred Components: The chemochromic pigment includes at least one first compound selected from titanium dioxide, vanadium oxide, tungsten oxide, molybdenum oxide, and/or yttrium oxide; and at least one platinum group compound selected from oxides, hydroxides, hydrated oxides, and and/or platinum group metal, where the platinum group compound is deposited on the first compound.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Detector: In the detector, the polymer matrix is selectively permeable to a combustible gas selected from hydrogen, carbon monoxide, acetylene, and methane. The detector further comprises an additive interdispersed in the polymer matrix selected from electrostatically dissipative additive, a salt, a polyelectrolyte, an ionic or non-ionic surfactant, and/or carbon nanotubes; aerogel or xerogel interdispersed in the polymer matrix; and adhesive attached to a surface of the detector for attaching the detector to a location to be tested. In the detector, the chemochromic pigment has a response of Delta E of 0.2 (when measured by instrumentation), or 1 (when seen by the unaided eye).    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: In the method (M1), the step of molding is selected from extrusion, thermoforming, injection molding, blow molding, and fiber spinning. The method (M1) further involves combining aerogel or xerogel with the chemochromic pigment and the polymer; combining with the chemochromic pigment and the polymer an additive selected from electrostatically dissipative additive, a salt, a polyelectrolyte, an ionic or non-ionic surfactant, and/or carbon nanotubes; and applying adhesive layer on at least a portion of a surface of the detector for attaching the detector to a location to be tested. The method (M2) further involves fiber spinning the chemochromic pigment with an additive selected from electrostatically dissipative additive, a salt, a polyelectrolyte, an ionic or non-ionic surfactant, and/or carbon nanotubes. Preferred Components: The polymer or the polymer matrix is selected from acrylic, acrylonitrile, epoxy, ethylene vinyl alcohol, ethylene-vinyl acetate, fluoropolymer, liquid crystal polymer, polyacetal, polyacrylamide, polyacrylate, polyamide-imide, polyamide, polyaniline, polybutadiene, polybutylene, polycarbonate, polydiene, polyester, polyether, polyethylene, polyimide, polyketone, polynitrile, polyolefin, polypropylene, polysiloxane, polystyrene, polysulfone, polyurethane, polyvinyl alcohol, polyvinylchloride, polyvinyl, polyvinylidene, silicone, thermoplastic, thermoset plastic, and/or their derivatives. EXAMPLE - No suitable example given.