三点比较式臭袋法测定污染源臭气的改进建议

Improvement of Triangle Odor Bag Method for the Determination of Odor Discharged by Pollution Source

提出采用三点比较式臭袋法测定污染源臭气样品时,可能出现因初始稀释倍数设定过高而无法准确计算结果的情况,单一的初始稀释倍数无法适用于同一批样品和低浓度样品。建议取消判定师的初步嗅辨试验环节,直接从第一级稀释倍数开始嗅辨试验,低浓度样品转为环境空气样品分析,同时实行嗅辨员分级制度。

Based on the work experience,it is difficult to determine the initial dilution factor.For single dilution factor is unable to be applied to different samples.It is suggested to cancel the primary sniff conducted by the judge,but begins from the first level of dilution factor.These samples with low odor concentration are suggested to be treated as ambient air samples and sniffers are suggested to be classified.