严重吸湿的火药,会使其点火困难,燃速减慢,从而导致膛压、初速降低,射程减少。若火药在高温、干燥的环境下贮存,则会使其中的水分含量减少,最终导致燃速加快,膛压、初速和射程的增大。卡尔·费休法适用于各种火药,而且测量效果较好,因此,用卡尔费休法测定火药中水分含量具有重要的现实意义。 Severe hygroscopic gunpowder will make it difficult to fire, burning speed slowed down, resulting in chamber pressure, muzzle velocity, range reduction. If the gunpowder is stored under high temperature and dry conditions, the moisture content in the gunpowder will decrease, leading to the increase of the burning rate, the increase of the bore pressure, the muzzle velocity and the range. Karl Fischer method for a variety of gunpowder, and the measurement effect is better, therefore, with Karl Fischer method for determination of moisture content in gunpowder has important practical significance.