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依据GB/T5009.61-2003对密胺餐具中有害物质甲醛的分光光度法的不确定度进行研究。建立数学模型,量化各个来源对总的不确定度影响,计算得出分光光度法测定密胺餐具中甲醛的合成不确定度和扩展不确定度。
According to GB / T5009.61-2003, the uncertainty of the spectrophotometric method of formaldehyde in melamine tableware was studied. A mathematical model was established to quantify the influence of various sources on the total uncertainty. The synthetic uncertainty and extended uncertainty of spectrophotometry for the determination of formaldehyde in melamine tableware were calculated.