The results showed that the standard solution of chlorine, sequence of color-developing agent and water sample and coloration time had influences on the test results.
结果表明，不同的氯标准溶液、显色剂与水样的加入顺序和显色时间对测定的结果均有干扰。
The results showed that the standard solution of chlorine, sequence of color-developing agent and water sample and coloration time had influences on the test results.
结果表明，不同的氯标准溶液、显色剂与水样的加入顺序和显色时间对测定的结果均有干扰。
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