Tham khảo tài liệu 'wiley wastewater quality monitoring and treatment_20', khoa học tự nhiên, công nghệ môi trường phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Data Quality and Comparability 357 conductivity dissolved oxygen turbidity ammonia nitrate nitrite orthophosphate chlorophyll a. A consultation document was released at the end of 2005 for the following portable water quality measurements temperature pH conductivity dissolved oxygen turbidity ammonia nitrate nitrite orthophosphate Chlorophyll a. This particular consultation document comes from the consolidation of extensive work on earlier work for a workable format for ensuring high quality chemical measurements individual measurands. It is thus likely to be the basis of an Environment Agency mandatory approach to administering their self monitoring policy. MCERTs is only an input for part of the uncertainty chain. IPPC Integrated Pollution Prevention and Control and PPC Pollution Prevention and Control do not now rely on end of pipe measurements and it is to be expected that audit trails and uncertainty chains will increasingly be demanded for key process variables. Calibration maintenance training and consumables management practices and controls form an integral part of understanding the quality of measurement data. Obviously there is a lot of judgement and reliance on skills involved and it becomes clear that comparability of data is a challenge. 358 Collecting and Merging Data from Widespread and Disparate Sources Pre-normative work Standardised testing of on-line sensors analysers Anders Lynggaard-Jensen ISO Working Group under an EU project in the late 1990s was reported at the ISA-Tech Conference at Interkama in October 1999 In order to support the protection of the environment there is an urgent need for improvement ofcomparability reliability and quality of measurements obtainedfrom in-situ on-line sensors analysers used to determine the composition and flow of effluents from wastewater treatment plants and industries. Users cannot check and compare different products before purchase without individually completing costly experimental trials and so the .
