应用 HCM－100 BOD5测定仪分析石化污水 BOD5

摘要

The pressure-difference method measuring principle and determination method of HCM -100 BOD5 instrument were introduced.Using the pressure-difference method of standard samples , petroleum chemical sewage samples were analyzed.Compared with dilute inoculation method , the analysis results showed that accuracy and precision of BOD5 measuring by HCM-100 BOD5 instrument pressure difference method and dilution inoculation method had no significant differences conformed to the state standards quality -control allowed range.The pressure-difference method overcame the weakness , such as trival dilution inoculation method operation , big workload , too much reagents using , difficult to determine diluted times , the operation is fast and simple , saves manpower and material resources advantages , and can be used for petroleum chemical wastewater analysis.%介绍了HCM－100 BOD5测定仪压差法测量原理及测定方法，利用压差法对标准样品、石油化工污水样品进行分析，并与稀释接种法进行对比，从分析结果看， HCM－100 BOD5测定仪压差法与稀释接种法测量BOD5的准确度和精密度无显著差异，符合国家标准质控允许的范围内。 HCM－100 BOD5测定仪克服了稀释接种法工作量大操作繁琐、所需试剂多、稀释倍数难确定等缺点，具有操作简便、快速，节省人力、物力等优点，可用于对石油化工污水的分析。