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<p>ISO 16000-4:2004 specifies a diffusive sampler/solvent desorption/high performance liquid chromatography (HPLC) method for the determination of formaldehyde in indoor air. </p>
<p>The test method is applicable to the measurement of formaldehyde in indoor air over the range from 0,001 mg/m<sup>3</sup> to 1,0 mg/m<sup>3</sup> 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/m<sup>3 </sup>to 1 mg/m<sup>3</sup>,<sup> </sup>and for 72 h it is 0,001 mg/m<sup>3 </sup>to 0,33 mg/m<sup>3</sup>. </p>
<p>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.</p>
Reģistrācijas numurs (WIID)
39198
Darbības sfēra
<p>ISO 16000-4:2004 specifies a diffusive sampler/solvent desorption/high performance liquid chromatography (HPLC) method for the determination of formaldehyde in indoor air. </p>
<p>The test method is applicable to the measurement of formaldehyde in indoor air over the range from 0,001 mg/m<sup>3</sup> to 1,0 mg/m<sup>3</sup> 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/m<sup>3 </sup>to 1 mg/m<sup>3</sup>,<sup> </sup>and for 72 h it is 0,001 mg/m<sup>3 </sup>to 0,33 mg/m<sup>3</sup>. </p>
<p>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.</p>
