Normy

Obsah

ČSN ETSI EN 301 549 V3.1.1 The present document specifies the functional accessibility requirements applicable to ICT products and services, together with a description of the test procedures and evaluation methodology for each accessibility requirement in a form that is suitable for use in public procurement within Europe. The present document is intended to be used with Web based technologies, non-web technologies and hybrids that use both. It covers both software and hardware as well as services. It is intended for use by both providers and procurers, but it is expected that it will also be of use to many others as well. The relationship between the present document and the essential requirements of Directive 2016/2102 on the accessibility of the websites and mobile applications of public sector bodies [i.28] is given in Annex A. The present document contains the necessary functional requirements and provides a reference document such that if procedures are followed by different actors, the results of testing are similar and the interpretation of those results is clear. The test descriptions and evaluation methodology included in the present document are elaborated to a level of detail compliant with ISO/IEC 17007:2009 [i.14], so that conformance testing can give conclusive results.

Obsah

ČSN ETSI EN 300 175-4 V2.8.1 The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the Data Link Control (DLC) layer. The DLC layer is part 4 of the DECT CI standard and layer 2b of the DECT protocol stack. Two planes of operation are specified for this DLC (sub)layer. These planes are called the Control plane (C-plane) and the User plane (U-plane). The C-plane is mostly concerned with the DECT signalling aspects. It provides a reliable point-to-point service that uses a link access protocol to offer error protected transmission of Network (NWK) layer messages. The C-plane also provides a separate point-to-multipoint (broadcast) service (Lb). The U-plane is only concerned with end-to-end user information. This plane contains most of the application dependent procedures of DECT. Several alternative services (both circuit-mode and packet-mode) are defined as a family of independent entities. Each service provides one or more point-to-point U-plane data links, where the detailed characteristics of those links are determined by the particular needs of each service. The defined services cover a wide range of performance, from "unprotected with low delay" for speech applications to "highly protected with variable delay", for local area network applications. NOTE - The performance of the DLC services need not be tight to any particular application. For example the "unprotected with low delay" service could also be used for data applications, e.g. if some data protection is provided outside the DECT protocol. The present document uses the layered model principles and terminology as described in Recommendations ITU T X.200 [14] and X.210 [15]. The present document includes New Generation DECT, a further development of the DECT standard introducing wideband speech, improved data services, new slot types and other technical enhancements.

Obsah

ČSN ETSI EN 300 175-7 V2.8.1 The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the security architecture, the types of cryptographic algorithms required, the way in which they are to be used, and the requirements for integrating the security features provided by the architecture into the DECT CI. It also describes how the features can be managed and how they relate to certain DECT fixed systems and local network configurations. The security architecture is defined in terms of the security services which are to be supported at the CI, the mechanisms which are to be used to provide the services, and the cryptographic parameters, keys and processes which are associated with these mechanisms. The security processes specified in the present document are each based on one of three cryptographic algorithms: - an authentication algorithm; - a key stream generator for MAC layer encryption; and - a key stream generator plus a Message Authentication Code generator for CCM authenticated encryption. The architecture is, however, algorithm independent, and either the DECT standard algorithms, or appropriate proprietary algorithms, or indeed a combination of both can, in principle, be employed. The use of the employed algorithm is specified in the present document. Integration of the security features is specified in terms of the protocol elements and processes required at the Network (NWK) and Medium Access Control (MAC) layers of the CI. The relationship between the security features and various network elements is described in terms of where the security processes and management functions may be provided. The present document does not address implementation issues. For instance, no attempt is made to specify whether the DSAA or DSAA2 should be implemented in the PP at manufacture, or whether the DSAA, DSAA2 or a proprietary authentication algorithm should be implemented in a detachable module. Similarly, the present document does not specify whether the DSC or DSC2 should be implemented in hardware in all PPs at manufacture, or whether special PPs should be manufactured with the DSC, DSC2 or proprietary ciphers built into them. The security architecture supports all these options, although the use of proprietary algorithms may limit roaming and the concurrent use of PPs in different environments. Within the standard authentication algorithms, DSAA2, DSC2 and CCM are stronger than DSAA and DSC and provide superior protection. DSAA2 and DSC2 are based on AES [10] and were created in 2011. CCM is also based on AES [10] and was added to the standard in 2012. The present document includes New Generation DECT, a further development of the DECT standard introducing wideband speech, improved data services, new slot types and other technical enhancements. The present document also includes DECT Ultra Low Energy (ULE), a low rate data technology based on DECT intended for M2M applications with ultra low power consumption.

Obsah

ČSN EN 676 This document specifies the terminology, the general requirements for the construction and operation of forced draught gas burners and also the provision of control and safety devices, and the test procedure for these burners. This document is applicable to: - automatic gas burners with a combustion air fan (hereinafter called "burners") and gas line components, intended for use in appliances of different types, and that are operated with gaseous fuels; - pre-mixed burners and nozzle mixed burners; - single burners with a single combustion chamber; - single-fuel and dual-fuel burners when operating only on gas; - the gas function of dual-fuel burners designed to operate simultaneously on gaseous and liquid fuels, which, for the latter, the requirements of EN 267 also apply. This document deals with all significant machine hazards, hazardous situations and events relevant to burners, when they are used as intended and under conditions of misuse which are reasonably foreseeable, see Annex J. This document specifies the requirements to ensure the safety during commissioning, start-up, operation, shut-down and maintenance. This document does not apply to burners specifically designed for use in industrial processes carried out on industrial premises. This document deals also with the additional requirements for the burners in the scope with pressurized parts and /or firing pressurized bodies, see Annex K. This document deals also with forced draught burners intended to be used with biogenous gaseous fuels, mixtures with line-conveyed gas and special gaseous fuels. This document deals also with burners and their equipment to increase the total appliance efficiency, see Annex M.

Obsah

ČSN EN ISO 20257-1 (38 6613) This document provides requirements and guidance for the design and operation of floating liquefied natural gas (LNG) installations, including installations for the liquefaction, storage, vaporisation, transfer and handling of LNG, in order to have a safe and environmentally acceptable design and operation of floating LNG installations. This document is applicable to: - floating LNG liquefaction installations (plant) - FLNG; - floating LNG regasification installations (plant) - FSRU; - floating storage units - FSU. This document is applicable to offshore, near-shore or docked floating LNG installations. This document includes any jetty in the scope in case of docked floating LNG installations with regards to the mooring. This document briefly describes floating LNG mooring concepts. This document is applicable to both newbuilt and converted floating LNG installations, and addresses specific requirements. This document is not applicable to: - onshore LNG storage, liquefaction and/or regasification installations/plants, except for docked FSRU and/or FLNG installations; - offshore LNG plants based on non-floating structure (such as gravity based structure [GBS] principle); and - support onshore based facilities (such as support vessels, tugs, etc.). This document is not intended for design floating power generation facilities though relevant parts of this document can be used. This document is not intended to cover LNG as fuel bunkering applications.

Obsah

ČSN EN IEC 60947-4-1 Tato norma platí pro dále uvedená zařízení: - elektromechanické stykače a spouštěče včetně spínacích ochranných zařízení motoru (MPSD); - ovladače stykačových relé; - kontakty použité výhradně pro obvod cívky tohoto stykače nebo tohoto stykačového relé; - vyhrazené příslušenství (např. vyhrazené vinutí, vyhrazené příslušenství západky); určené pro připojení k rozvodným obvodům, motorovým obvodům a dalším zátěžovým obvodům, jejichž jmenovité napětí nepřesahuje 1 000 V AC nebo 1 500 V DC.

Obsah

ČSN ETSI EN 302 217-2 V3.2.2 The present document specifies technical characteristics and methods of measurements for Point-to-point (P-P) Digital Fixed Radio Systems (DFRS) operating in frequency bands allocated to Fixed Service (FS) from 1 GHz to 86 GHz, corresponding to the appropriate frequency bands from 1,4 GHz to 86 GHz as described in annex B to annex J. Systems in the scope of the present document are generally intended to operate in full frequency division duplex (FDD) and covers also unidirectional applications. Time division duplex (TDD) applications, when possibly applicable in a specific band, are explicitly mentioned as appropriate in annex B through annex J. The present document covers requirements to demonstrate that radio equipment both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference NOTE: The relationship between the present document and the essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.

Obsah

ČSN EN 62552-3 This part of IEC 62552 specifies the essential characteristics of household and similar refrigerating appliances cooled by internal natural convection or forced air circulation, and establishes test methods for checking these characteristics. This part of IEC 62552 describes the methods for the determination of energy consumption characteristics and defines how these can be assembled to estimate energy consumption under different usage and climate conditions. This part of IEC 62552 also defines the determination of volume.

Obsah

ČSN EN ISO 19111 This document defines the conceptual schema for the description of referencing by coordinates. It describes the minimum data required to define coordinate reference systems. This document supports the definition of: spatial coordinate reference systems where coordinate values do not change with time. The system may: - be geodetic and apply on a national or regional basis, or - apply locally such as for a building or construction site, or - apply locally to an image or image sensor; - be referenced to a moving platform such as a car, a ship, an aircraft or a spacecraft. Such a coordinate reference system can be related to a second coordinate reference system which is referenced to the Earth through a transformation that includes a time element; - spatial coordinate reference systems in which coordinate values of points on or near the surface of the earth change with time due to tectonic plate motion or other crustal deformation. Such dynamic systems include time evolution, however they remain spatial in nature; - parametric coordinate reference systems which use a non-spatial parameter that varies monotonically with height or depth; - temporal coordinate reference systems which use dateTime, temporal count or temporal measure quantities that vary monotonically with time; - mixed spatial, parametric or temporal coordinate reference systems. The definition of a coordinate reference system does not change with time, although in some cases some of the defining parameters can include a rate of change of the parameter. The coordinate values within a dynamic and in a temporal coordinate reference system can change with time. This document also describes the conceptual schema for defining the information required to describe operations that change coordinate values. In addition to the minimum data required for the definition of the coordinate reference system or coordinate operation, the conceptual schema allows additional descriptive information - coordinate reference system metadata - to be provided. This document is applicable to producers and users of geographic information. Although it is applicable to digital geographic data, the principles described in this document can be extended to many other forms of spatial data such as maps, charts and text documents.

Obsah

ČSN EN IEC 61558-1 ed. 3 Tato část normy IEC 61558 pojednává o bezpečnostních aspektech transformátorů, tlumivek, napájecích zdrojů a jejich kombinací, jako je elektrická, tepelná a mechanická bezpečnost. Tento dokument dále zahrnuje nezávislé nebo sdružené nepřenosné nebo přenosné typy suchých transformátorů, napájecích zdrojů, včetně impulzně řízených napájecích zdrojů, tlumivek a jejich kombinací v oblasti bezpečnosti. Jejich vinutí může být zapouzdřené nebo nezapouzdřené. Netvoří součást distribuční sítě.

Obsah

ČSN ETSI EN 300 392-1 V1.6.1 The present document defines addressing for Terrestrial Trunked Radio system (TETRA) supporting Voice plus Data (V+D). It also gives background information of the air interface, the interworking between TETRA systems and to other systems via gateways, the terminal equipment interface on the Mobile Station (MS), the security aspects in TETRA networks, the management services offered to the operator, the performance objectives, and the supplementary services that come in addition to the basic and tele-services used as a basis for TETRA standardization. The present document defines and specifies the TETRA addressing and identities and their organization in groups corresponding to the different functions. It establishes the background of the TETRA general network design for standardization purposes: - it gives information about the circuit mode and packet mode reference points for the MS and switching and management infrastructure; - it gives information about a model of the air interface protocol stack, different functions of layers and sublayers; - it gives information about the functions provided by the circuit mode teleservices used for speech and basic services used for data transfer; - it gives information about the functions related to the management of the users' mobility across networks and inside a network including roaming and migration; - it gives information about the functions related to the transport of short data messages as a service specific to TETRA; - it gives information about the functions related to the support of packet data service in a way specific to TETRA; - it gives information about the supplementary services that mainly extend the capabilities of the circuit mode basic and teleservices; - it gives information about the various possibilities of individual circuit mode call scenarios and provides guidance on priority concepts for packet data and circuit mode services and on the service quality. NOTE: This part of the multi-part document may, by its nature as a general design statement, require updating when later parts of the multi-part document are completed and maintained (in order to avoid any non alignment). If a discrepancy occurs between this part and any other part of the multi-part document, then the other part will take precedence. The present document may be maintained mainly on those clauses, which are referred from other parts or standards.

Obsah

ČSN EN ISO 11073-10201 Within the context of the ISO/IEEE 11073 family of standards for point-of-care medical device communication, an abstract, object-oriented domain information model that specifies the structure of exchanged information, as well as the events and services that are supported by each type of object, is provided in this standard. All data structure elements are specified using abstract syntax (ASN.1) and may be applied to many different implementation technologies, transfer syntaxes, and application service models. Core subjects include medical, alert, system, patient, control, archival, communication, and extended services. Model extensibility is supported, and a conformance model and statement template is provided.