Normy

Obsah

ČSN EN ISO 16396-1 This document establishes a system of designation for polyamide (PA) moulding and extrusion materials, which can be used as the basis for specifications. The types of polyamide plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties a) viscosity number, b) tensile modulus, and c) nucleating additive, and on information about composition, intended application and/or method of processing, important properties, additives, colorants, fillers, and reinforcing materials. The designation system is applicable to all polyamide homopolymers, copolymers, and blends. It is applicable to unmodified materials ready for normal use and materials modified, for example, by colorants, additives, fillers, reinforcing materials, and polymer modifiers. This document does not apply to the following materials: - monomer casting-type polyamides of PA 6; - monomer casting-type polyamides of PA 12. It is not intended to imply that materials having the same designation give the same performance. This document does not provide engineering data, performance data, or data on processing conditions which can be required to specify a material. If such additional properties are required, they can be determined according to the test methods specified in ISO 16396-2, if suitable. In order to specify a thermoplastic material for a particular application, additional requirements can be given in data block 5 (see 4.1).

Obsah

ČSN EN 17176-2+A1 This part of EN 17176 specifies the characteristics of solid-wall pipes made of oriented unplasticized poly(vinyl chloride) (PVC-O) for piping systems intended for water supply and for buried drainage, sewerage, treated waste water and irrigation under pressure or above-ground where protected from direct sunlight. It also specifies the test parameters for the test methods referred to in this document. In conjunction with EN 17176-1 and EN 17176-5, it is applicable to oriented PVC-O pipes with or without integral socket intended to be used for the following: a) water mains and services lines; b) conveyance of water for both outside and inside buildings; c) drainage, sewerage and treated waste water under pressure; d) irrigation under pressure. It is applicable to piping systems intended for the supply of water with a maximum allowable operating pressure (PFA) up to and including 25 bar1). The piping system according to this document is intended for the conveyance of cold water up to and including 45 °C and especially in those applications where special performance requirements are needed, such as impact loads and pressure fluctuations. For temperatures between 25 °C and 45 °C, Figure C.1 of this document applies. This part of EN 17176 specifies a range of pipe sizes and pressure classes and gives a requirement and recommendations concerning colours. NOTE - It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.

Obsah

ČSN EN 17637 This document describes a calculation method to determine the indoor gamma dose from construction products. The method includes calculation of the indoor gamma dose from the individual construction product under its intended use, as well as the dose from the building taking consideration of multiple building materials where this is deemed necessary and any shielding from the terrestrial background. The calculation method builds on existing modelling principles for photon emission and absorption. Parameters of the modelling that are not product specific, such as room geometry, exposure coefficients, and conversion factors are predefined and form the underlying basis for the method in this EN. The choice for pre-defined model parameters is essential from a harmonization perspective, despite the fact that such parameters can vary considerably for every homeowner, building type, region or country. Typical examples are the exposure time, the location of exposure in the building, the terrestrial background radiation and the amounts and way the building materials are used in the building. The parameters are selected on the basis of international consensus, as laid down in ICRP, UNSCEAR, EU RP guidelines and other renowned publications. Product specific parameters such as density and thickness are specified in accordance with the product's intended use. In addition, the product's massic activities of 226Ra, 232Th and 40K are specified and obtained according to prEN 172161 [3]. The method provides a tiered approach with a basic approach intended for assessing individual construction products, followed by a more refined approach to assess a complete building design. The former approach assumes an identical structure of building materials on all six surfaces of the model room, and where needed complemented with other building materials that form an intrinsic part of the product's intended use. The latter approach enables evaluation of a known building design. Here the user can specify the applied construction product to walls, floor or ceiling separately in accordance with the product's intended use. The indoor gamma dose from the individual construction product as well as the building is expressed in terms of an annual effective dose from gamma radiation in the indoor environment. The formulation of the indoor gamma dose in the building is consistent with the dose for indoor external exposure as stated under Article 75 of the Basic Safety Standards Directive. As a result, the described method enables assessment of the calculated annual dose of the building against the reference level as defined in the Basic Safety Standards Directive2. The method is designed for assessment of mineral based building materials applied in bulk or superficially and used as a construction product in buildings. This includes any building materials that have been identified by EU member states as being of concern from a radiation protection point of view. The method is envisaged for use by producers of building materials, architects and building constructors as well as authorities.

Obsah

ČSN EN ISO 21597-2 Tento dokument zavádí možnost přidávat informace o obsahu určitého kontejneru další specializací generických typů vazeb specifikovaných v ISO 21597-1. Definované typy vazeb byly vybrány pro zlepšení využitelnosti kontejneru umožněním přidání sémantických vztahů, které jsou interpretovatelné lidmi pro lepší srozumitelnost těchto vazeb.

Obsah

ČSN EN 17672 (73 0914) This document provides horizontal rules for business-to-consumer communication including benchmarking systems that aim to inform consumers about the life cycle environmental performance of construction products, assembled systems and construction elements. The communication is based on the results of the life cycle of the product, system or element, as incorporated to the construction asset, see EN 15804:2012+A2:2019. B2C communication includes information on benefits and loads beyond the system boundary. This document is aimed at organizations providing business-to-consumer communication and benchmarking systems and provides guidance on how to develop business-to-consumer communication and common rules for benchmarking methodologies using EPD, see EN 15804, and see EN 15942 for the communication format. Business-to-consumer communication and benchmarking methodology described in this document is based on a functional unit and cradle-to-grave assessments. B2C communication with no benchmarking is also described in this document.

Obsah

ČSN EN ISO 13165-2 This document specifies a test method to determine radium-226 (226Ra) activity concentration in all types of water by emanometry. The test method specified is suitable for the determination of the soluble, suspended and total 226Ra activity concentration in all types of water with soluble 226Ra activity concentrations greater than 0,02 Bq l-1. The decay chains of 238U and 232Th are given in Annex A. Figure A.1 shows the 238U and its decay chain.

Obsah

ČSN ISO 32210 Tento dokument poskytuje organizacím návod, jak aplikovat zastřešující principy udržitelnosti, postupy a terminologii pro finanční aktivity. Zabývá se tím, co je podstatné z pohledu organizace a jejích zainteresovaných stran. Tento dokument je použitelný pro všechny organizace působící ve finančním sektoru včetně, ale nejen, přímých věřitelů a investorů, správců aktiv a poskytovatelů služeb. Kromě finančních institucí a zprostředkovatelů mohou tento dokument použít i další strany ve finančním sektoru, jako jsou poskytovatelé nebo příjemci udržiteného financování, vládní organizace, instituce veřejného a soukromého sektoru, podnikatelské subjekty, průmyslová sdružení, regulátoři finančního trhu a orgány dohledu a kontroly.

Obsah

ČSN EN ISO 4465 This document specifies requirements for the management of farmed Angora rabbits in accordance with animal welfare principles. This document applies to the management and control of critical activities in Angora rabbit farming, including accommodation, reproduction, feed and nutrients, health, fibre collection, ethical claims and supporting information.

Obsah

ČSN ETSI EN 300 132-1 V2.2.1 The present document contains requirements for the input of the ICT equipment connected to interface "A1". The voltage at interface "A1" defined in the present document is single phase and three phase AC. The following voltage range categories are covered: - Narrow single phase "A1"n-1p and narrow three phase "A1"n-3p AC voltage range defined to comply with nominal European AC voltages defined in IEC 60038 [i.2]. - Wide single phase "A1"w-1p and wide three phase "A1"w-3p AC voltage range for worldwide nominal AC voltages. This wide voltage range is based on the nominal voltages defined in IEC 60038 [i.2]. The present document aims at providing compatibility between the power supply equipment and both the ICT equipment, and the different load units connected to the same interface "A1" (e.g. control/monitoring, cooling system, etc.). The purpose of the present document is: - to identify a power supply system with the same characteristics for all ICT equipment defined in the area of application; the area of application may be any location where the interface "A1" is used i.e. telecommunication centres, Radio Base Stations, datacentres and customer premises; - to facilitate interworking of different (types of) loads; - to facilitate the standardization of power supply systems for ICT equipment; - to facilitate the installation, operation and maintenance in the same network of ICT equipment and systems from different origins. General requirements for safety and EMC are out of the scope of the present document series unless specific requirement not defined in existing safety or EMC standards. The present document concerns the requirements for the interface between Information and Communication Technology (ICT) equipment and its power supply. It includes requirements relating to its stability and measurement. Various other references and detailed measurement and test arrangements are contained in informative annexes.

Obsah

ČSN P CEN/TS 17676 This document specifies guidelines and recommendations for the safe operation and management of fitness centres during an infectious outbreak. This document sets out guidelines relative to the wide range of operating models for fitness centres with a framework of good practices for operators to use. This includes the operational and managerial procedures for offering and delivering the service covering users, staff, and contractors whilst on the premises.

Obsah

ČSN EN 13799 This document specifies minimum requirements for design and testing of contents gauges, which are directly connected to LPG transportable pressure vessels, LPG drums, LPG cylinders and static LPG pressure vessels above 0,5 l water capacity excluding those used for automotive containers. This document includes minimum requirements for the safe interchangeability of telemetry equipment, which is either integral in or additional to the contents gauge. This document does not apply to refineries or other process plants.

Obsah

ČSN EN 474-3 Tento dokument se společně s EN 474-1:2022 zabývá všemi významnými nebezpečími, nebezpečnými situacemi a událostmi pro nakladače, pokud jsou používány, jak je předpokládáno, a za podmínek výrobcem důvodně předvídatelného nesprávného použití (viz příloha A) spojené s celým životním cyklem stroje, jak je popsáno v EN ISO 12100:2010, 5.4. Požadavky tohoto dokumentu doplňují společné požadavky formulované v EN 474-1:2022. Tento dokument neopakuje požadavky EN 474-1:2022, ale doplňuje nebo upravuje požadavky pro nakladače. Tento dokument nestanovuje požadavky na hlavní elektrické obvody a pohony strojních zařízení, pokud je hlavním zdrojem energie externí elektrické napájení. Tento dokument nestanovuje požadavky pro vlastnosti bezpečnostních funkcí ovládacího systému (systémů). Následující významná a relevantní nebezpečí nejsou v tomto dokumentu zahrnuta: - nebezpečí způsobená laserem; - nebezpečí způsobená bleskem. Tento dokument se nezabývá tažením přívěsů. Tento dokument se nezabývá demoličními stroji. Tato část se také zabývá používáním vidlic, manipulací s kulatinou, manipulací s jedním těžkým předmětem a zvedacími činnostmi. Tento dokument neplatí pro nakladače, které byly vyrobeny před datem vydání tohoto dokumentu CEN. POZNÁMKA - Pro přepravu po veřejných komunikacích platí vnitrostátní dopravní předpisy (např. brzdění, řízení, osvětlení, tažení atd.), dokud nebudou k dispozici harmonizované požadavky.