Normy

Obsah

ČSN EN IEC 62759-1 ed. 2 Photovoltaic (PV) modules are electrical devices intended for continuous outdoor exposure during their lifetime. Existing type approval standards do not consider mechanical stresses that may occur during transportation to the PV installation destination. This part of IEC 62759 describes methods for the simulation of transportation of complete package units of modules and combined subsequent environmental impacts. A list of design modifications which require a retest is provided in Annex B. This document applies to flat plate photovoltaic modules.

Obsah

ČSN EN IEC 62988 This document establishes requirements relevant to the selection and use of wireless devices in instrumentation and control (I&C) systems important to safety used in nuclear power plants (NPPs). Those I&C systems may fully consist of wireless devices. NOTE - The word "use" refers to the integration of the device, its qualification, administrative control, and every other activity that may be necessary to use the device in an important to safety application. This document applies to the I&C of new NPPs and to backfit of I&C in existing NPPs. Every wireless device or wireless system that is important to safety is in the scope of this document. Both fixed and mobile devices and all data types (voice, process data, etc.) are included within the scope if they provide a safety classified function. This document restricts the use of wireless devices to systems supporting category C functions according to IEC 61226, excluding explicitly their use for categories A and B.

Obsah

ČSN EN IEC 63355 This document specifies a method for the determination of the content of halogens in cable management system (CMS) products or system components made completely or partly of combustible material(s). The determination is made by combustion and subsequent analysis of the combustion product by ion chromatography. This document specifies how CMS products or system components can be declared as halogen-free. This document is for environmental performance purposes only. Compliance with this document does not imply the absence of toxicity, corrosivity or opacity of produced smoke, or other reaction to fire characteristics. If any of these characteristics are to be evaluated, the appropriate standards can be used. The detection limit of this test method is typically 0,025 g of halogen per kg (0,002 5 %). Halides insoluble in aqueous solution present in the original sample or produced during the combustion step are not determined by this method.

Obsah

ČSN EN 17648 This document describes requirements related to ingredients used in e-liquids and e-liquid components. This document: - specifies ingredient purity and related supply chain requirements; - specifies ingredient exclusion criteria based on function and toxicological properties; - specifies the need for a toxicological risk assessment and provides guidance on the content of this as well as specifying competency requirements for those responsible for it; - specifies nicotine content versus label claim over shelf life and performance characteristics of the analytical method used to measure the nicotine; - specifies pH limits for the e-liquid; - provides guidance on the measuring of emissions; - specifies certain ingredient-related product labelling; - provides guidance on ingredients that should not be used in e-liquids; - provides guidance on maximum levels in finished e-liquid for certain undesirable constituents that may occur in natural extracts used as flavourings. This document does not apply to packaging, vaping devices or refill container materials/ingredients.

Obsah

ČSN P CEN/TS 17789-2 This document specifies a method for the determination by ion pair chromatography of the iron chelated by each individual ortho(hydroxy)-ortho(hydroxy) isomer of the chelating agents [o,o] EDDHA, [o,o] EDDHMA and by HBED in organo-mineral fertilizers, having an organic matrix based on vegetal residues (cocoa shells, grape residue, soybean residue, .), algae extract, and animal meal (feather, bones, blood, ...) and containing one or more of these substances, except for [o,o] EDDHMA and HBED mixes. The method allows the identification and the determination of the total concentration of water soluble iron chelates of these chelating agents. Also, after derivatization with Fe, the soluble amount of the chelating agents can be determined when other micronutrients beside Fe are present in organo-mineral fertilizers containing [o,o] EDDHA, [o,o] EDDHMA or HBED. This method is applicable to a mass fraction of the metal chelated of at least 0,625 %. NOTE 1 - The substances EDDHA and EDDHMA exist as several different isomeric forms. Positional isomers for the hydroxyl or methyl groups (in ortho, meta, and para positions) as well as stereo isomers (meso and dl-racemic forms) are known. Both meso and dl-racemic forms of the [ortho,ortho] EDDHA and [ortho,ortho]. Since para, meta and ortho methyl positional isomers of the EDDHMA present quite similar stability, they could be grouped: in the method here described the para, meta and ortho methyl positional isomers of the [o,o] EDDHMA are considered together. HBED (N,N'-bis(2-hydroxybenzyl)-ethylenediamine-N,N'-diacetic acid) does not present isomeric forms. NOTE 2 - At present, analytically pure standards only exist for [ortho,ortho] EDDHA, [ortho,ortho] EDDHMA and HBED. All other substances being unavailable as a standard, the influence of their eventual presence in the samples (with respect to the sensitivity and the selectivity of this method) has not been studied. NOTE 3 - The meso and the dl-racemic forms of [o,o] EDDHA and [o,o] EDDHMA can be determined separately by this method.

Obsah

ČSN EN 16583 This document is applicable to hydronic fan coil units (FCU) as factory-made single assemblies which provide the functions of cooling and/or heating but do not include the source of cooling or heating. This document is applicable to both air free delivery and air ducted units with a maximum external static pressure due to duct resistance of 300 Pa max. This document specifies methods for the determination of the acoustical performance of fan coil units, defining standard working condition and installation. It is not the purpose of this document to specify the tests used for production or field testing. NOTE - For the purpose of remaining clauses, the term "unit" is used to mean "fan coil unit".

Obsah

ČSN EN 16306 This document specifies a laboratory method for determining the resistance to thermal and moisture cycling of marble intended for the external cladding of building facades.

Obsah

ČSN ISO 18889 Tento dokument stanoví minimální požadavky na provedení, klasifikaci a označování rukavic, které nosí pracov-níci aplikující pesticidy a pracovníci vstupující do prostoru ošetřeného pesticidy, aby chránili ruce nebo ruce a předloktí před kontaktem s těmito produkty. Tento dokument se vztahuje na rukavice vyrobené z elastomerních a polymerních materiálů. Tento dokument se nezabývá ochranou proti fumigantům. Tento dokument je třeba používat ve spojení s ISO 21420.

Obsah

ČSN EN ISO 16628 This document specifies requirements for safety, materials, design and information supplied with tracheobronchial tubes. These devices are used when isolation of the airways of one or both lungs is required. Tracheal tubes that include bronchus blockers are excluded from the scope of this document

Obsah

ČSN EN ISO 11638 This document specifies the characteristics of heterogeneous poly(vinyl chloride) flooring on foam, based on poly(vinyl chloride), and supplied in roll form or tile and plank. Such products can contain a transparent, non PVC factory finish. To encourage the consumer to make an informed choice, this document includes a classification system, based on intensity of use, which shows where these floor coverings can be expected to give satisfactory service. It also specifies requirements for marking.

Obsah

ČSN ISO 10010 Tento dokument poskytuje návod pro hodnocení, vývoj a zlepšování kultury kvality organizace, aby pomohla organizaci dosáhnout udržitelného úspěchu. Tento dokument bere v úvahu základní pojmy a zásady managementu kvality se zvláštním zaměřením na zapojení a vedení lidí. Doporučení v tomto dokumentu jsou obecná a mají být aplikovatelná v jakékoli organizaci bez ohledu na její velikost, odvětví, umístění, vyspělost nebo produkty a služby, které poskytuje. POZNÁMKA - Tento dokument poskytuje příklady nástrojů pro hodnocení kultury kvality organizace pomocí sebehodnocení za účelem určení vyspělosti kultury kvality a potenciálu pro zlepšení.

Obsah

ČSN P CEN ISO/TS 7849-1 Tato část ISO/TS 7849 uvádí základní požadavky na reprodukovatelné metody určování horní meze hladiny akustického výkonu A pro hluk vyzařovaný strojem nebo zařízením s využitím měření vibrací na povrchu. Metodu lze použít jen pro hluk vyzařovaný vibrujícími povrchy pevných konstrukcí a nikoliv pro hluk generovaný aerodynamicky. Tato metoda měření vibrací je zvláště vhodná v případech, kdy z důvodu vysokého hluku pozadí nebo dalších rušivých interferencí prostředí nejsou možná přesná přímá měření hluku šířeného vzduchem, stanovená například v ISO 3746[7], ISO 3747[8], ISO 9614 (všechny části)[12]; nebo když je třeba rozlišit celkový vyzařovaný akustický výkon a složku vytvářenou vibracemi jeho konstrukce. POZNÁMKA 1 - Jednou z aplikací této části ISO/TS 7849 je rozlišení mezi vyzařováním akustického výkonu šířeného vzduchem, který je generován vibracemi konstrukce, a aerodynamickými složkami akustického výkonu. Takové rozlišení není proveditelné s ISO 3746[7] a ISO 9614 (všechny části) [12]. POZNÁMKA 2 - Může docházet k potížím, pokud je hluk generován malými částmi na površích strojních zařízení (pohyblivé kontakty, např. kluzný kruhový kartáč nebo komutátor nebo kartáč elektrického stroje). Metody popsané v této části ISO/TS 7849 platí především pro procesy, které jsou vzhledem k času stacionární.