Standard solution calibration issue
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How many sets are required to calibrate a 0.5 mol/L sodium hydroxide standard solution in the laboratory, and what standard should the relative standard deviation between these sets meet? PS: This standard solution is used to analyze the concentration of the finished sulfuric acid
4 samples are required to be equal; the allowable error is in accordance with the latest version of GB/T 601-2002
At least four sets in parallel are required; for each set of analysis results, the range should be within 0.15 when calibrated by one person, and within 0.18 when calibrated by two people, in which case it is acceptable
Refer to HG/T 2843-1997
This post was last edited by xwtsq on 2010-6-6 at 19:35. GB/T 534-2002 \"Industrial Sulfuric Acid\" specifies that the method for preparing 0.5 mol/L sodium hydroxide used to determine the sulfuric acid content should follow GB/T 601; then why is the poster asking for an industry standard? What was said on the 3rd floor is correct.