Normy

Obsah

ČSN EN 61960-3 Tato norma určuje zkoušky výkonnosti, označování, značení, rozměry a ostatní požadavky na akumulátorové lithiové články a baterie pro přenosné aplikace. Cílem tohoto dokumentu je dát prodejcům a uživatelům lithiových akumulátorových článků a baterií soubor kritérií, podle kterých budou moci posoudit výkonnost lithiových akumulátorových článků a baterií nabízených různými výrobci. Přenosné aplikace zahrnují zařízení držená v ruce, přenosná zařízení a přemístitelná zařízení.

Obsah

ČSN EN 62788-1-6 This part of IEC 62788 defines the terminology, test equipment, test environment, specimen preparation, test procedures, and test report for measuring the degree of cure of Ethylene-Vinyl Acetate (EVA) encapsulation sheet used in photovoltaic (PV) modules. The differential scanning calorimetry (both residual enthalpy and melt/freeze protocols) and gel content methods are included herein. This procedure can be used by material- or module-manufacturers to verify that the cross-linking additive is present and is active. The procedure can also be used to verify the module manufacturing (lamination) process for the purposes of quality- and process-control. The procedure can also be used to assess the uniformity of the EVA formulation within a roll as well as to compare variation of the EVA formulation from roll to roll. This procedure can be applied to uncured or recently cured EVA sheet as well as uncured or recently cured EVA from PV modules.

Obsah

ČSN EN 16943 This European Standard describes a method for the determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc in different foodstuffs using optical emission spectrometry with inductively coupled plasma (ICP-OES) after pressure digestion. This method has been validated in an interlaboratory study according to ISO 5725 on infant formula soya based, cheese, chicken meat, wheat flour, apple juice, lobster and milk (see elements ranges Table 1 and validation data in Annex B). HorRat values greater than 2 have been observed for certain analyte/matrix combinations during the validation study. At European or International level, vertical standards for the determination of specific minerals can exist, e.g. for milk and milk products or for animal and vegetable fats and oils.

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ČSN EN ISO 4589-3 This document specifies methods for determining the minimum volume fraction of oxygen, in a mixture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions over a range of temperatures between 25 °C and 150 °C. The range of temperatures is typically between 40 °C and 150 °C. The results are defined as temperature index values at the test temperature, which is typical of the practical temperature that a plastic material can experience in an overheated service situation. Methods are provided for testing materials that are self-supporting at the test temperature in the form of vertical bars or sheet up to 10,5 mm thick. However, they are not applicable to form V which requires a supporting frame as defined in ISO 4589-2:2017, Table 2. These methods are suitable for solid, laminated or cellular materials characterized by an apparent density 100 kg/m3 or higher. The methods are also applicable to some cellular materials having an apparent density of less than 100 kg/m3. A method is provided for testing flexible sheet or film materials while supported vertically. This document also includes a method (see Annex A) for determining the temperature at which the OI of small vertical test specimens in air is 20,9 % under specified test conditions. The temperature at which this occurs is defined as the flammability temperature (FT) and the method is limited to the determination of temperatures less than 400 °C. The method is not applicable to materials having an OI of

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ČSN EN 16578 Tato norma uvádí požadavky na udržitelnost společně s metodami posuzování udržitelnosti a schématy vyhodnocování pro keramické zdravotnětechnické zařizovací předměty, jako jsou záchodové mísy a soupravy podle EN 997, nástěnné pisoárové mísy podle EN 13407, umyvadla podle EN 14688, společná umývací koryta podle EN 14296 a bidety podle EN 14528.

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ČSN EN ISO 27500 This International Standard is intended for executive board members and policy makers of all types of organizations (whether large or small) in the private, public and non-profit sectors. It describes the values and beliefs that make an organization human-centred, the significant business benefits that can be achieved, and explains the risks for the organization of not being human-centred. It provides recommendations for the policies that executive board members need to implement to achieve this. It sets out high-level human-centred principles for executive board members to endorse in order to optimize performance, minimize risks to organizations and individuals, maximize well-being in their organization, and enhance their relationships with the customers. The importance of organizational policy to address human-centredness is emphasized. This International Standard is not a management system standard. It is not intended or appropriate for certification purposes or regulatory or contractual use. This International Standard is not intended to prevent the development of national standards that are more specific or demanding.

Obsah

ČSN EN ISO 14780 Norma definuje metody pro redukci velikosti celkových vzorků (nebo dílčích vzorků) na laboratorní vzorky a laboratorních vzorků na podvzorky a analytické vzorky pro obecný rozbor a je použitelná pro tuhá biopaliva. Pro redukci vzorku využívá příhradové děliče vzorků, rotační děliče vzorků, lopaty a lopatky, střižní mlýn nebo drtič dřeva, sekyru, ruční pilu a síta. Norma obsahuje obecné postupy redukce vzorku, metody dělení vzorku za použití žlábkování, směšovacího pásu, dlouhé hromady, rotačního děliče, kuželování a kvartování. Dále obsahuje metody redukce hmotnosti laboratorních vzorků na podvzorky a analytické vzorky pro obecný rozbor, skladování a značení. Příloha A obsahuje hodnoty preciznosti. Příloha B obsahuje schéma přípravy vzorků pro jednorázovou dodávku a příloha C schéma přípravy vzorků pro nepřetržitou dodávku.

Obsah

ČSN ETSI EN 301 511 V12.5.1 The present document specifies technical characteristics and methods of measurements for the following radio equipment type: - GSM mobile station. This radio equipment type is for operation within the Digital cellular telecommunications system in the GSM 900 and/or GSM 1800 frequency bands as shown in table 1, with a channel separation of 200 kHz, utilizing constant envelope modulation and carrying traffic channels according to the Time Division Multiple Access (TDMA) principle. The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.9] under the conditions identified in annex A. The present document covers the general access requirements for terminal equipment up to and including 3GPP Rel-12. The general access requirements, applied to the terminal equipment, are for one release only. The present document does not cover the GPRS Class A mobiles and the ECSD mobiles. For each test purpose and its corresponding conformance requirement, a reference is given to the test method in ETSI TS 151 010-1 [2]. The requirements apply at the air interface, which may be stimulated to perform the tests by additional equipment if necessary. The measurement uncertainty is described in ETSI TS 151 010-1 [2], annex 5. In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the Radio Equipment Directive [i.9] will apply to equipment within the scope of the present document. NOTE 1: A list of such ENs is included on the web site http://www.newapproach.org. ETSI TS 151 010-1 [2] constitutes the conformance test suite for GSM. The verification of the conformance requirements in the present document is based on the tests described in this reference. The set of requirements in ETSI TS 151 010-1 [2] and the set of requirements in the present document need not be identical. Some requirements only apply to specific types of mobile station (e.g. data tests only apply to mobile stations with a data facility, tests that only apply to GSM 900 or only to GSM 1800 or to both). The present document indicates the specific test which should be carried out for each mobile station type. An active accessory is covered by the present document if it modifies the terminal performance in an aspect which affects conformance to essential requirements. NOTE 2: Only active devices are subject to the present document. Accessories may be tested with specific terminals, and either approved for use with those terminals only, or may possibly be approved for use with a wider range of terminals, depending on the nature and effect of the accessory.

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ČSN EN 16883 This European Standard provides guidelines for sustainably improving the energy performance of historic buildings, e.g. historically, architecturally or culturally valuable buildings, while respecting their heritage significance. The use of this standard is not limited to buildings with statutory heritage designation, it applies to historic buildings of all types and ages. This European Standard presents a normative working procedure for selecting measures to improve energy performance, based on an investigation, analysis and documentation of the building including its heritage significance. The procedure assesses the impact of those measures in relation to preserving the character-defining elements of the building.

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ČSN EN ISO 25178-72 This document defines the XML file format x3p for storage and exchange of topography and profile data.

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ČSN EN 61169-11 This part of IEC 61169, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for RF coaxial connectors with threaded coupling, typically for use in 50 Ohm cable networks (type 4,1-9,5). This document prescribes mating face dimensions for general purpose connectors - grade 2, dimensional details of standard test connectors-grade 0, gauging information and tests selected from IEC 61169-1, applicable to all detail specifications relating to series 4,1-9,5 RF connectors. This specification indicates recommended performance characteristics to be considered when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H. The 4,1-9,5 types RF coaxial connectors with nominal impedance 50 Ohm are threaded coupling units which are used with all kinds of RF cables and microstrips in microwave transmission systems. And the working frequency is up to 14 GHz.

Obsah

ČSN EN 61189-5-503 Tato norma specifikuje vodivá anodická vlákna (dále jen CAF) a specifikuje nejen zkoušku vlhkým teplem kon-stantním, ale rovněž zkoušku vlhkým teplem cyklickým a zkoušku tlakovou nesaturovanou vodní párou (HAST).