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Government Chemist - CEN Updates July/August 2015
Changes to standards and technical documents updated by CEN that affect those carrying out chemical measurement in support of regulation.
EN/ISO13196:2015 - Soil quality - Screening soils for selected elements by energy-dispersive X-ray fluorescence (XRF) spectrometry using a handheld or portable instrument. This method specifies the procedure for screening soils and soil-like materials for selected elements when handheld or portable energy-dispersive XRF spectrometers are used and is assumed to be applied on-site to obtain qualitative or semi-quantitative data that assists decisions on further sampling strategy for assessing soil quality.
EN/ISO 9698:2015 - Water quality - Determination of tritium activity concentration - Liquid scintillation counting method. This method details the procedure for determining tritium activity in waters using liquid scintillation counting. With suitable technical conditions, a detection limit of 1 Bq/l can be achieved. Tritium activity concentrations below 106 Bq/l can be determined without any sample dilution. A prior enrichment step can significantly lower the limit of detection.
EN/ISO 10504:2015 - Starch derivatives - Determination of the composition of glucose syrups, fructose syrups and hydrogenated glucose syrups - Method using high-performance liquid chromatography.
EN/ISO 13162:205 - Water quality - Determination of carbon 14 activity - Liquid scintillation counting method. This method details the procedure for determining the 14C activity of waters using liquid scintillation counting. 14C activity concentrations below 10(up)6 Bq/l without any sample dilution.