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目的 评价不锈钢水管对我国水质的影响。方法 对采集的 2家国内企业生产的不锈钢水管进行检测 ,现场分析检测 ,随机选择 4家用户。结果 实验室检测中不合格指标有铅、铬、镍、砷 ;而 pH、余氯、总碱度、总硬度、溶解性总固体、硫酸盐、氯化物、硝酸盐、铜、锌、镉、锡均合格。现场检测中不合格指标有镍 ;pH、余氯、总碱度、总硬度、溶解性总固体、硫酸盐、氯化物、硝酸盐、铜、铅、锌、铬、镉、锡、砷均合格。结论 除了镍以外 ,不锈钢水管其余指标均能达到我国饮用水水质卫生要求
Objective To evaluate the impact of stainless steel water pipes on water quality in China. Methods The stainless steel pipes produced by two domestic enterprises were detected and analyzed on site. Four users were randomly selected. Results The unqualified indicators in laboratory tests were lead, chromium, nickel and arsenic. The pH, residual chlorine, total alkalinity, total hardness, total dissolved solids, sulfate, chloride, nitrate, Tin are qualified. The unqualified indicators in the field test were nickel; the pH, residual chlorine, total alkalinity, total hardness, total dissolved solids, sulfate, chloride, nitrate, copper, lead, zinc, chromium, cadmium, tin, . Conclusions Except for nickel, the remaining indicators of stainless steel water pipes can meet the sanitary requirements of drinking water quality in our country