Normy

Obsah

ČSN EN 18007-5 This document specifies a method to determine the capability of a manufacturer to use the electromagnetic pulse welding process for production of products of the specified quality. It specifies quality requirements but does not assign those requirements to any specific product or product group. In this document, the term "aluminium" refers to aluminium and its alloys.

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ČSN EN 18007-4 This document specifies the requirements for the specification and qualification of welding procedures for electromagnetic pulse welding.

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ČSN EN 18007-1 This document defines terms and definitions related to the electromagnetic pulse welding process. In this document, the term "aluminium" refers to aluminium and its alloys.

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ČSN EN ISO 29461-3 (12 5005) This document specifies methods to determine the mechanical integrity of filters under defined conditions that can be encountered in abnormal operating environments. It describes the test methods for filter elements, independent of any ageing procedures like pulsing, loading, temperature cycles, wet conditions or others. The test procedure is intended for filters operating in the range of 0,24 m3/s (850 m3/h) up to 2,36 m3/s (8 500 m3/h). Filter elements with a lower efficiency than ISO T5 (ePM10) according to ISO 29461-1 are excluded. To ensure the comparability of the test results, only new filter elements or those loaded up to 625 Pa or maximum 800 Pa according to ISO 29461-1 are tested. This document does not describe a standardized method to measure the fractional or gravimetric efficiency. The efficiency of the filter element can be tested according to ISO 29461-1. The performance results obtained according to this document cannot be quantitatively applied (by themselves) to predict performance in real use.

Obsah

ČSN EN 17149-1 Tento dokument je základem souboru EN 17149 pro zajištění jednoty terminologie napříč souborem. Popisuje základní termíny a definice stejně jako obecné postupy pro hodnocení pevnosti struktur kolejových vozidel, která jsou vyráběna, provozována a udržována v souladu s normami platnými pro aplikace kolejových systémů. Dokument je platný pro všechny druhy kolejových vozidel. Postup hodnocení je omezen na železné materiály a hliník. Dokument nedefinuje konstrukční zatěžovací stavy. Není platný pro korozní podmínky nebo zvýšené provozní teploty v oblasti tečení.

Obsah

ČSN EN IEC 63281-3-2 Tato norma platí pro elektricky poháněná dopravní zařízení pro použití na veřejných komunikacích nebo na veřejných prostranstvích, která jsou primárně navržena pro přepravu nákladu ("nákladní elektrické přepravní prostředky"). Typické aplikační prostředí nákladních elektrických přepravních prostředků zahrnuje toto: pro účely hotelů, restaurací, kancelářských budov, nemocnic, průmyslových/rekreačních parků, veřejných komunikací atd.

Obsah

ČSN EN 50172 ed. 2 Tato norma specifikuje požadavky na elektrickou instalaci specifické pro systémy nouzového únikového osvětlení spolu s dokumentací pro revizi, provoz a údržbu a požadavky na zkoušky těchto systémů. Tato norma se nezabývá požadavky na náhradní osvětlení.

Obsah

ČSN EN ISO 14146 This document specifies the general requirements, based on ISO 11074 and ISO/IEC 17025, for all This document specifies the dosimetric and organizational criteria and the test procedures to be used for the periodic verification of the performance of dosimetry services supplying personal and/or area, i.e. workplace and/or environmental, dosemeters used for individual (personal) and/or area, i.e. workplace and/or environmental monitoring. The performance evaluation according to this document can be carried out by a dosimetry service to demonstrate the fulfilment of specified performance requirements. The irradiation qualities used in this document are representative for exposure situations that are expected or mimic workplace fields from the radiological activities being monitored using the dosemeters from the services. This document applies to personal and area dosemeters for the assessment of external photon radiation with a fluence-weighted mean energy between 8 keV and 10 MeV, beta radiation with a fluence-weighted mean energy between 60 keV and 1,2 MeV, and neutron radiation with a fluence-weighted mean energy between 25,3 meV, i.e. thermal neutrons with a Maxwellian energy distribution with kT = 25,3 meV, and 200 MeV. It covers all types of personal and area dosemeters needing laboratory processing (e.g. thermoluminescent, optically stimulated luminescence, radiophotoluminescent, track detectors or photographic-film dosemeters) and involving continuous measurements or measurements repeated regularly at fixed time intervals (e.g. several weeks, one month). Active direct reading as well as semi-passive or hybrid dosemeters, such as direct ion storage (DIS) or silicon photomultiplier (SiPM) dosemeters, for dose measurement, can also be treated according to this document. Then, they are treated as if they were passive, i.e. the dosimetry service reads their indicated values and reports them to the evaluation organization. In this document, the corrected indicated (corrected indication) value is the one given by the dosimetry systems as the final result of the evaluation algorithm (for example display of the software, printout) in units of dose equivalent (Sv). Environmental dosemeters usually indicate the quantity H*(10) but they can, in addition or alternatively, indicate the quantity H'(3), H'(0,07), air kerma, Ka, or absorbed dose, D. All these dosemeters can also be treated according to this document. If Ka or D is indicated (in Gy) the dose values in this document stated in Sv shall then be interpreted as equivalent values in Gy.

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ČSN EN ISO 18363-3 This document specifies a procedure for the simultaneous determination of 2-MCPD esters (bound 2 MCPD), 3-MCPD esters (bound 3-MCPD) and glycidyl esters (bound glycidol) in a single assay, based on acid catalysed ester cleavage and derivatization of cleaved (free) analytes with phenylboronic acid (PBA) prior to GC/MS analysis. This document is applicable to solid and liquid fats and oils. For all three analytes the limit of quantification (LOQ) is 0,1 mg/kg and the limit of detection (LOD) is 0,03 mg/kg.

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ČSN EN 18015 This test method is a standard procedure for the determination of saturates, olefins, aromatics and oxygenates in unleaded petrol using gas chromatography and vacuum ultraviolet detection (GC-VUV).

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ČSN EN 17399 This document defines the terms related to functions, products, and properties of algae and algae products. In order to better pack the methodologies, algae are regarded as a functional group of organisms consisting of microalgae, macroalgae, cyanobacteria and Labyrinthulomycetes.

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ČSN EN 17983 This document specifies methods for the measurement of energy content and main elements balances of algae from cultivation or from wild growth and algae products to provide biomass, intended for renewable algal raw material used as bioenergy and in bio-based products. This document also specifies carbon source parameters specific to algae as bio-based and it is applicable to studies covering algae production life cycle assessment (LCA) e.g. algal biomass farming or wild collection. This document does not apply to methods of algae and algae products sampling, harvesting and pre/postprocessing. This document does not apply to algae and algae products intended for the food and feed sector.