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Maximum error of visual water testing using indicator reagent papers

机译：使用指示剂试剂纸张的最大视觉水测试误差

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Based on metrological documents in force using the uniform color space as a system of color measurements, the maximum error of visual semiquantitative determination of iron(II, III), cadmium, calcium, cobalt, magnesium, copper, mercury, lead, and zinc; total of iron(II. III). cadmium cobalt, copper, nickel, mercury, and zinc; total of the above metals and manganese, silver, lead, and lanthanum; and nitrate, nitrite, sulfate, phosphate, active chlorine, chloride, and chromate ions in water as well as of pH of aqueous solutions was estimated. Determinations were performed using comparators with reference color scale and corresponding concentration scales, in which the concentration increased in geometrical series with the ratio 2 or 3. The results of calculations and the experimental data indicated that visual testing can be used for the semiquantitative determination of trace components with a maximum relative error of 33 or 50% on condition that the entire tutor scale chosen according to the standard color gamut is divided into no more than six or seven grades. With color scales divided into more grades, the determination becomes qualitative. Twenty rapid test procedures for the semiquantitative determination of ions in water were certified.
机译：基于使用均匀颜色空间作为颜色测量系统的计量文件，视觉半定位测定铁（II，III），镉，钙，钴，镁，铜，汞，铅和锌的最大误差;总铁（II。III）。钴，铜，镍，汞和锌;上述金属和锰，银，铅和镧;估计硝酸盐，亚硝酸盐，硫酸盐，磷酸盐，活性氯，氯化物和水溶液中的水溶液中的铬酸盐离子。使用具有参考颜色刻度的比较器和相应的浓度尺度进行测定，其中浓度在几何系列中增加，其比例为2或3.计算结果和实验数据表明可视化测试可用于痕量的痕量测定最大相对误差为33或50％的组件，条件是根据标准色域选择的整个导师刻度分为不超过六个或七个等级。彩色鳞片分为更多等级，确定变得定性。对水中离子的半定量测定的二十次快速试验程序得到认证。

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