Resumen
ISO 16000-4:2011 specifies a determination of formaldehyde in indoor air using a diffusive sampler with solvent desorption and high performance liquid chromatography (HPLC).
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 with conventional indoor air relative humidity and for monitoring at air velocities as low as 0,02 m/s. The chromatographic step in the method is designed to eliminate potential interferences, including those due to the presence of other carbonyl compounds. The sampling method gives a time-weighted average result.
Informaciones generales
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Estado: PublicadoFecha de publicación: 2011-12Etapa: Norma Internacional confirmada [90.93]
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Edición: 2Número de páginas: 11
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Comité Técnico :ISO/TC 146/SC 6ICS :13.040.20
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Ciclo de vida
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Anteriormente
RetiradaISO 16000-4:2004
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Ahora