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现行 ISO 16107:2007
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Workplace atmospheres — Protocol for evaluating the performance of diffusive samplers 工作场所空气——扩散采样器性能评估协议
发布日期: 2007-10-15
ISO 16107:2007规定了根据工作场所条件(风速、湿度、温度、大气压力和分析物变化)评估采样器性能的方法。指定的简明实验集旨在将用户的成本降至最低。评估仅限于在室内工作场所环境中进行个人采样时通常遇到的条件,即风速高达0.5 m/s,采样周期通常为2小时至8小时。 静态或区域采样与受试者移动显著的个人采样不同,在极低风速下,由于停滞,有时可能会降低采样率。 因此,ISO 16107:2007不适用于相对于静态采样器小于0.1 m/s的风速。还应测试取样器是否符合制造商规定的容量限制,可能是在存在干扰化合物的情况下。如果有合适的暴露室,采样器评估协议可以扩展,以涵盖采样器在其他采样周期和条件下的使用。 ISO 16107:2007说明了如何测量扩散取样器的不确定度,以表征评估后获得的浓度估计值。在应用过程中的各种环境条件下,继续重新评估扩散取样器的性能是不现实的。
ISO 16107:2007 specifies methods for evaluation of sampler performance in terms of workplace conditions: wind speed, humidity, temperature, atmospheric pressure, and analyte variation. The concise set of experiments specified aims to minimize cost to the user. The evaluation is limited to conditions commonly encountered in personal sampling in the indoor workplace setting, namely wind speeds of up to 0,5 m/s and for sampling periods typically from 2 h to 8 h. Static or area sampling, unlike personal sampling where movement of the subject is significant, may sometimes be subject to sampling-rate reduction due to stagnation at very low wind speeds. ISO 16107:2007 therefore does not apply to wind speeds of less than 0,1 m/s relative to static samplers. Samplers are also tested for compliance with the manufacturer's stated limits on capacity, possibly in the presence of interfering compounds. Given a suitable exposure chamber, the sampler evaluation protocol can be extended to cover sampler use for other sampling periods and conditions. ISO 16107:2007 indicates how to measure diffusive sampler uncertainty for characterizing concentration estimates obtained subsequent to the evaluation. It is impractical continually to re-evaluate diffusive sampler performance under various environmental conditions prevailing during application.
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归口单位: ISO/TC 146/SC 2
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