ISO 16000-4:2004 室内空气 第4部分：甲醛的测量-标本扩散法
标准编号：ISO 16000-4:2004
中文名称：室内空气 第4部分：甲醛的测量-标本扩散法
英文名称：Indoor air — Part 4: Determination of formaldehyde — Diffusive sampling method
发布日期：2004-05
标准范围
ISO 16000-4:20 04规定了用于测定室内空气中甲醛的扩散采样器/溶剂解吸/高效液相色谱（HPLC）方法。该测试方法适用于室内空气中甲醛的测量，范围为0,001 mg/m3至1.0 mg/m3，采样时间为24小时至72小时。对于24小时的采样期，适用的浓度范围为0,003 mg/m3至1 mg/m3，对于72小时，适用的浓度范围为0,001 mg/m3至0.33 mg/m3。该方法适用于相对湿度高达80%的大气中的测量和风速低至0.02 m/s的监测。潜在的干扰，包括由于存在其他羰基化合物而产生的干扰，应通过方法中的色谱步骤消除。采样方法给出了时间加权平均结果。
ISO 16000-4:2004 specifies a diffusive sampler/solvent desorption/high performance liquid chromatography (HPLC) method for the determination of formaldehyde in indoor air.The test method is applicable to the measurement of formaldehyde in indoor air over the range from 0,001 mg/m3 to 1,0 mg/m3 for a sampling period of between 24 h and 72 h. For sampling periods of 24 h, the applicable concentration range is 0,003 mg/m3 to 1 mg/m3, and for 72 h it is 0,001 mg/m3 to 0,33 mg/m3.The method is suitable for measurements in atmospheres of up to 80 % relative humidity and for monitoring at air velocities as low as 0,02 m/s. Potential interferences, including those due to the presence of other carbonyl compounds, should be eliminated by the chromatographic step in the method. The sampling method gives a time-weighted average result.
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