Normy

Obsah

ČSN EN IEC 61855 ed. 2 This document applies to electrical appliances for household and similar use for drying and styling hair (including their accessories). This document defines the main performance characteristics that are of interest to the user and specifies methods of measuring these characteristics.

Obsah

ČSN EN IEC 60318-7 Tato norma popisuje modelovou hlavu a trup nebo figurínu určenou k měření zdrojů zvuku umístěných v blízkosti ucha ve frekvenčním rozsahu od 100 Hz do 16 000 Hz. Figurína popsaná v tomto dokumentu je určena pouze pro akustická měření se vzdušným vedením. Není vhodná pro měření, která závisí na přenosových cestách vibrací, jako např. vedení kostí, nebo pro měření vyžadující simulaci kostí nebo tkání. Tento dokument specifikuje figurínu z hlediska jejích geometrických rozměrů i akustických vlastností. Pouze figuríny, které splňují oba soubory specifikací, jsou ve shodě s tímto dokumentem.

Obsah

ČSN EN ISO/IEC 24760-3 This part of ISO/IEC 24760 provides guidance for the management of identity information and for ensuring that an identity management system conforms to ISO/IEC 24760-1 and ISO/IEC 24760-2. This part of ISO/IEC 24760 is applicable to an identity management system where identifiers or PII relating to entities are acquired, processed, stored, transferred or used for the purposes of identifying or authenticating entities and/or for the purpose of decision making using attributes of entities. Practices for identity management can also be addressed in other standards.

Obsah

ČSN EN 13922+A1 This document specifies the following points regarding the minimum requirements for an overfill prevention system: - functions; - major components; - characteristics; - test methods. This document is applicable to overfill prevention systems for liquid fuels having a flash point up to but not exceeding 100 °C, excluding liquefied petroleum gas (LPG). NOTE - Vapour path detection is not part of this standard but can be provided as an option.

Obsah

ČSN EN 14487-1 (73 2431) This document is applicable to sprayed concrete to be used for repair and upgrading of structures, for new structures and for strengthening of ground. This document covers: - classification related to consistence of wet mix; - environmental exposure classes; young, hardened and fibre reinforced concrete; - requirements for constituent materials, for concrete composition and for basic mix, for fresh and hardened concrete and all types of fibre reinforced sprayed concrete; - specification for designed and prescribed mixes; - conformity. This document is applicable to wet mix as well as dry mix sprayed concrete. The substrates to which sprayed concrete can be applied include: - ground (rock and soil); - sprayed concrete; - different types of formwork; - structural components constituted of concrete, masonry and steel; - drainage materials; - insulating materials. Additional or different requirements may be needed for applications not within this document, for instance-refractory uses.

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ČSN EN ISO 15750-3 This document specifies the characteristics, dimensions and finish of the inserted flange-type closure systems used for steel drums.

Obsah

ČSN EN ISO 20347 Tato mezinárodní norma stanoví základní a dodatečné (volitelné) požadavky na kompletní pracovní obuv i na použité materiály a komponenty. Zahrnuje například mechanická rizika, odolnost proti uklouznutí, tepelná rizika, ergonomické chování. Specifikuje také požadavky na pracovní obuv upravenou nebo vyráběnou speciálně na míru pro konkrétního uživatele. Tato norma se kvůli interakci s oděvem (např. kalhoty překrývající obuv) a podmínkám na pracovišti (např. špína, bláto) nezabývá vlastností zvýšené viditelnosti. Norma rovněž nepokrývá zvláštní rizika, která jsou krytá doplňkovými normami souvisícími s příslušnou činností (například obuv pro hasiče, elektricky izolační obuv, ochrana proti úrazům řetězovou pilou, ochrana proti chemikáliím a stříkancům roztaveného kovu, ochrana pro motocyklisty).

Obsah

ČSN EN ISO 23611-4 This document specifies a method for sampling and handling free-living nematodes from terrestrial field soils as a prerequisite for using them as bio-indicators (e.g. to assess the quality of a soil as a habitat for organisms). This document applies to all terrestrial biotopes in which nematodes occur. The sampling design of field studies in general is specified in ISO 18400-101. This document is not applicable to aquatic nematodes because of differences in the sample matrix (e.g. water column). Methods for some other soil organism groups such as earthworms, collembolans enchytraeids or macro-invertebrates are covered in ISO 23611-1, ISO 23611-2, ISO 23611-3 and ISO 23611-5. This document does not cover the pedological characterization of the site which is highly recommendable when sampling soil invertebrates. ISO 10390, ISO 10694, ISO 11272, ISO 11274, ISO 11277, ISO 11461 and ISO 11465 include suitable procedures for measuring pH, particle size distribution, C/N ratio, organic carbon content and water-holding capacity.

Obsah

ČSN ETSI EN 300 132-2 V2.7.1 The present document contains requirements and measurements methods for the physical interface "A" that is situated between the power supply system(s) and the power consuming ICT equipment. The nominal voltage at power interface "A" of ICT equipment defined in the present document is DC voltage -48 V. The DC power can be supplied by a DC output power system (e.g. based on AC rectifiers on grid or DC/DC converters on solar system, fuel cell, DC engine or fuel cell generator) and also directly supplied by a battery backup in this DC power system. The purpose of the present document is to be able to use a power supply system with the same characteristics for all ICT equipment defined in the area of application: - to facilitate inter working of different types of load units; - to facilitate the standardization of ICT equipment; - to facilitate the installation, operation and maintenance in the same network of ICT equipment and systems from different origins. The present document aims at providing electrical compatibility between the power supply equipment and the power consuming ICT equipment, between different system blocks and loads connected to the same power supply feeding the interface "A" (e.g. control/monitoring, cooling system, etc.). The requirements are defined for: - the power supply input of any type of ICT equipment installed at telecommunication centres that are connected to interface "A" powered by DC; - any type of ICT equipment, installed in access networks and customers' premises, the DC interface "A" of which is also used by equipment requiring a DC supply source; - any type of ICT equipment powered by DC, used in the fixed and mobile networks installed in different locations such as buildings, shelters, street cabinets, outdoor installations. Disturbances on the power supply interface "A" relating to the continuous wave phenomena below 20 kHz are covered within the present document. The present document does not cover safety requirements, they are covered by relevant safety standards. The present document does not cover EMC requirements, they are covered by relevant EMC standards. NOTE - Annex B gives guidance on -60 VDC supply systems.

Obsah

ČSN ETSI EN 302 077 V2.3.1 The present document specifies technical characteristics and methods of measurements for transmitting equipment for broadcast sound services using the Digital Audio Broadcast (DAB) modulation system operating in VHF band III (174 MHz to 240 MHz). DAB transmissions are licensed by national administrations. The Final Acts of the CEPT T DAB Planning Meeting Constanţa, 2007 (WI95revCO07) [i.2] and the Final Acts of the Regional Radiocommunication Conference for planning of the digital terrestrial broadcasting service in parts of Regions 1 and 3, in the frequency bands 174 MHz to 230 MHz and 470 MHz to 862 MHz (RRC-06) [i.3] provide spectrum masks for Out-of-Band emissions under different conditions. These requirements are represented by four transmission cases in the present document, see table 0. The license conditions set by the national administration stipulate which transmission case (Out-of-Band spectrum mask) applies. NOTE - The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.

Obsah

ČSN EN 17652 (96 1560) This document describes assessments recommended for in situ preservation and monitoring of archaeological sites. It sets out the main parameters used to assess the state of preservation of archaeological materials and evaluate the environmental conditions of archaeological deposits and provides a framework for monitoring sites. A decision-making framework is included to help readers make appropriate knowledge-based choices. The procedures described are appropriate for terrestrial, wetland or underwater archaeological sites. They will not necessarily be relevant to all archaeological sites, and the level of assessment required and the resources needed are expected to be balanced with and proportionate to the significance and complexity of the site and the scale of any proposed changes. The informative annexes relate primarily to terrestrial sites; for detailed technical guidance on investigating and monitoring underwater sites, see sasmap.eu [19, 20]. NOTE - Underwater sites include all underwater sites and those in the intertidal zone.

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ČSN EN ISO/CIE 11664-2 This document defines three CIE standard illuminants for use in colorimetry: CIE standard illuminant A for the representation of typical tungsten-filament lighting, CIE standard illuminant D65 for the representation of average daylight having a correlated colour temperature of approximately 6 500 K and CIE standard illuminant D50 for the representation of daylight with a correlated colour temperature of approximately 5 000 K. Values of the relative spectral power distribution of the three illuminants are included in this document.