水质. 用反转显微镜对浮游植物群落计数的标准指南（Uterm?hl 技术）. 英文版本 DIN EN 15204: 2006-12

详细信息   

• 标准号：DIN EN 15204-2006
• 发布日期：2006-12-01
• 英文题名：Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Uterm？hl technique); English version of DIN EN 15204:2006-12
• 英文主题词：Algae ; Aquatic biology ; Biochemical methods of analysis ; Biological analysis and testing ; Biological systems ; Biological tests ; Chemistry of water ; Consistency (mechanical property) ; Definition ; Definitions ; Frequencies of operation ; Fresh water ; Freshwater biology ; Inverse ; Investigation methods ; Investigations ; Lakes ; Measuring incertainity ; Microscopy ; Phytotoxicity ; Planctons ; Preservatives ; Quality assurance ; Quality control ; Routine tests ; Sampling methods ; Seas ; Surveillance (approval) ; Testing ; Uterm？hl ; Water ; Water analysis ; Water organism ; Water pollution ; Water quality ; Water testing
• 标准状态：现行
• 发布单位：DE-DIN
• 国际标准分类号：13.060.70
• 载体形态：46P.;A4
• 中国标准分类号：C51
• 国别：德国标准化学会

文摘

The procedure described in this European Standard is based on the standard settling technique as defined by Utermohl in 1958 [31]. It describes a general procedure for the estimation of abundance and taxonomic composition of marine and freshwater phytoplankton by using inverted light microscopy and sedimentation chambers, including the preceding steps of preservation and storage. Emphasis is placed on optimizing the procedure for the preparation of the microscopic sample. Many of the general principles of the approach described may also be applied to other techniques of enumerating algae (or other entities) using a (conventional) microscope, some of which are described in Annex E. This guidance standard does not cover field collection of samples or the analysis of picoplankton, quantitative analysis of free-floating mats of Cyanobacteria or specific preparation techniques for diatoms.