Naturvetenskap och tillämpad vetenskap

This document specifies a method for the enumeration of intestinal enterococci in water. The method is based on the growth of target organisms in a liquid medium and calculation of the “Most Probable Number” (MPN) of microorganisms by reference to MPN tables or using informatic programs. The test described in this document relies upon the detection of intestinal enterococci based upon expression of the enzyme ß-D-glucosidase. This method provides a confirmed result in 24 h with no requirement for confirmation of positive wells. This method can be applied to a range of types of water (for example, drinking water, bathing water, groundwater, surface water and wastewater), including those containing an appreciable amount of suspended matter and high background counts of heterotrophic bacteria. For marine waters, enterococci are best enumerated using diluted samples.

This document considers atmospheric precipitation and defines the procedures and equipment to perform laboratory and field tests, in steady-state conditions, for the calibration, check and metrological confirmation of non-catching precipitation measurement instruments. It provides a classification of non-catching measurement instruments based on their laboratory performance. The classification does not relate to the physical principle used for the measurement, nor does it refer to the technical characteristics of the instrument assembly but is solely based on the instrument calibration. Attribution of a given class to an instrument is not intended as a high/low ranking of its quality but rather as a quantitative standardized method to declare the achievable measurement accuracy to provide guidance on the suitability for a particular purpose, while meeting the user’s requirements.

I detta dokument definieras termer som används i en upphandlings- och utförandeprocess för trädvård, trädvårdstjänster, trädunderhåll samt förnyelse av trädbestånd.

Detta dokument omfattar terminologi för:

–      beskrivning av träd,

–      funktioner hos träd,

–      beskärning och andra beställningsbara åtgärder,

–      trädbesiktning,

–      naturvård,

–      kulturmiljövård,

–      riskbedömning,

–      skador,

–      åtgärder.

Detta dokument omfattar inte terminologi för skogsproduktion, trädbiologi, markarbeten samt plantskolor.

This document specifies the minimum requirements for BSC with respect to design, construction, safety and hygiene and gives general test methods for their verification. The requirements for the different classes are given in the respective parts of prEN 12469.

This document specifies the specific requirements for class II BSC with respect to design, construction, safety and hygiene. It sets the specific performance criteria for class II BSC for work with biological agents and specifies test procedures with respect to protection of the worker, the environment and product protection including cross-contamination.

This document gives requirements and recommendations for installation, commissioning and routine testing of BSC.