2. 澳门新葡萄新京威尼斯987

    • SDL 205 Standard gas generator

      The SDL 205 standard gas generator realizes proportional dilution of standard gas and produces standard gas with a preset volume concentration. The preset volume concentration is not higher than the standard gas concentration. It can also continuously generate special calibration gases that are difficult to store (such as H₂O, NH₃, HCl, HF, HgCl₂, etc.). The humidity concentration can reach 40%. Other calibration gases are determined by the reagent concentration.

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