Title: Transcat Project: Manual - Standard Procedure for Data Acquisition 
Resource Type: document --> technical publication --> report 
Country: EU Projects 
Year: 2004 
Availability: Bender, S. et al. (2004) Transcat Project: Manual - Standard Procedure for Data Acquisition, Deliverable 4.1 
Author 1/Producer: Bender, S. 
Other Authors/Producers: Mieseler, T., Rubbert, T. 
Author / Producer Type: EC Project 
Report / download web link (=direct link): http://www.transcat-project.net/Deliverables/WP4/dl4-1%20pt2 ...  
EUGRIS Keyword(s): Groundwater protection-->Groundwater protection overview
 
Short description: In order to create a consistent database for TRANSCAT DSS, containing comparable data of high quality originating from sources of various countries, it is necessary to form a common standard to be used for future data acquisition. For the TRANSCAT project, such a standard also establishes the possibility to evaluate existing data in terms of quality and comparability according to the defined standard. This report as part 2 of Deliv erable 1 of Work Package 4 (Data Acquisition) is representing this common standard in form of a manual for a standard procedure. Accurate sampling is the mandatory pre-condition for proper examination of water. The sampling process must be adapted to the intended purpose of investigation as well as to the local circumstances. The sampling process must not be regarded as minor or even negligible part of the monitoring process. Mistakes made during sampling cannot be compensated by analytics. A basic requirement for accurate sampling is the design of an appropriate sampling program. Design of the sampling program is of course depending on the objective of the monitoring process (see chapter 2). Besides a well-planned monitoring program, the utilisation of adequate sampling techniques, including the application of appropriate tools, is a necessary requirement to obtain representative and uncontaminated samples, as well as high quality data respectively. Chapter 3 includes information about which type of sample has to be taken under certain conditions, the tools to be used and necessities of documentation. The choice of adequate sample type is primarily depending on the given natural conditions. For example, it is of crucial importance if a sample is taken from a stagnant or a from flowing water body. In addition, separated samples of possibly different kind have to be taken for varying parameters to be investigated, e.g. for chemical, microbiological or biological parameters. Any bias potentially induced by the material of sampling tools or vessels has to be strictly avoided. Most problems are caused by adsorption, by contamination because of insufficient cleaning, and by contamination by the material of the tool or vessel itself. These possible sources of falsific ation have to be excluded (see chapter 3). Water, especially surface water and waste water, may undergo various physical, chemical and biological reactions during the time between sampling and analysis. If these reactions cannot be inhibited by conservation methods, serious alterations of the sample are possible, so that analysis results may differ largely from the results that would have been obtained directly after sampling. These reactions possibly take place within just hours after the sampling. Therefore, it is not only important to carry out the analysis for certain parameters directly in the field, but also to minimise time between sampling and analysis and to implement necessary methods of conservation, which have to be chosen according to the given circumstances and examination goals (see chapter 4). There is a huge number of different parameters which can be analysed, and for each parameter, normally there are different methods how these parameters can be examined. First of all, one has to differ between parameters which have to or which are at least preferable to be measured directly in situ, in the field, and parameters which have to be analysed in the laboratory. In addition, there are parameters for which both field methods and laboratory methods exist. In this case, the best cost-value ratio has to be evaluated. 
Link to Project(s): TRANSCAT Integrated water management of transboundary catchments
 
Submitted By: Dr Stefan Gödeke WhoDoesWhat?      Last update: 14/02/2006