DIN EN ISO 23611-4-2011 土壤质量.土壤无脊椎动物的取样.第4部分:存在于土壤的线虫类的采样,提取和鉴定(ISO 23611-4-2007);德文版本EN ISO 23611-4-2011
Soil quality - Sampling of soil invertebrates - Part 4: Sampling, extraction and identification of soil-inhabiting nematodes (ISO 23611-4:2007); German version EN ISO 23611-4:2011