Normy

Obsah

ČSN EN 1789+A1 This document specifies requirements for the design, testing, performance and equipping of road ambulances used for the transport, monitoring, treatment and care of patients. It contains requirements for the patient's compartment in terms of the working environment, ergonomic design and the safety of the crew and patients. This document does not cover the training of the crew, which is the responsibility of the authority/authorities in the country where the ambulance is to be registered. This document is applicable to road ambulances capable of transporting at least one patient on a stretcher and excludes the transportation of hospital beds. This document also specifies requirements for ambulances intended to carry transport incubator systems. This document covers the specific requirements of each type of road ambulance, which are designated according to the patient condition. This document gives general requirements for medical devices carried in road ambulances and used therein and outside hospitals and clinics in situations where the ambient conditions can differ from normal indoor conditions.

Obsah

ČSN ETSI EN 303 883-2 V2.1.1 The present document provides measurement procedures for receiver requirements to address the spectrum efficiency requirements set out in article 3.2 of the RED [i.7]. The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance for HS development, which can be further refined by the responsible TB. Baseline receiver concept comprises the following parameters: - Receiver Baseline Sensitivity (RBS); and - Receiver Baseline Resilience (RBR). The Baseline receiver concept is a further development of the signal interferer handling concept, see ETSI TS 103 361 [i.4].

Obsah

ČSN P CEN ISO/TS 24672 This document provides an overview of the methods used to determine the nanoparticle number concentration in liquid dispersions and aerosols. The methods described are the ensemble measurement techniques of differential centrifugal sedimentation (DCS), multi-angle dynamic light scattering (MDLS), small-angle X-ray scattering (SAXS) and ultraviolet-visible spectroscopy (UV-vis) and the particle counting methods of particle tracking analysis (PTA), resistive pulse sensing (RPS), single particle inductively coupled plasma mass spectrometry (spICP-MS), condensation particle counter (CPC), and differential mobility analysing system (DMAS). This document provides information on the use of each technique, along with considerations on sample preparation, advantages and limitations.

Obsah

ČSN EN 12583+A1 (38 6481) This document describes the specific functional requirements for the design, construction, operation, maintenance and disposal activities for safe and secure gas compressor stations. This document applies to new gas compressor stations with a Maximum Operating Pressure (MOP) over 16 bar and with a total shaft power over 1 MW. For existing compressor stations, this document applies to new compressor units. Where changes/modifications to existing installations or gas composition take place, due account can be taken of the requirements of this document. This document does not apply to gas compressor stations or compressor units operating prior to the publication of this document. For existing sites this document can be used as guidance. The purpose of this document is to: - ensure the health and safety of the public and all site personnel; - cover environmental issues; - avoid incidental damage to nearby property; and - open the gas infrastructure to accommodate renewable gases, including a possible design for hydrogen. This document specifies common basic principles for the gas infrastructure. Users of this document are expected to be aware that more detailed national standards and/or codes of practice can exist in the CEN member countries. This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this document, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts). CEN/TR 13737 (all parts) gives: - clarification of all legislations/regulations applicable in a member state; - if appropriate, more restrictive national requirements; - a national contact point for the latest information. This document does not apply to: - off-shore gas compressor stations; - gas compressor stations for compressed gas filling-stations; - customer installations downstream of the point of custody transfer; - design and construction of driver packages (see Annex C); - mobile compressor equipment. For supplies to utility services such as small central heating boilers reference is made to EN 1775. Figure 1 shows a schematic representation of compressor stations in a gas infrastructure. For further information refer to Annexes A, B, C, D, E and F.

Obsah

ČSN EN ISO 80369-2 This document specifies the design and dimensions for two small-bore connectors intended to be used for connections in respiratory applications of medical devices and accessories. One connector (R1) is intended for use on medical devices and accessories subjected to pressures up to 15 kPa (e.g. a breathing system). The other connector (R2) is intended for use on medical devices and accessories subjected to higher pressures between 15 kPa and 600 kPa (e.g. oxygen therapy tubing). NOTE 1 - The pressure is related to pressure available at the source to which the medical device is connected. NOTE 2 - The intended application does not preclude the use of other connectors on medical devices or accessories within this application. NOTE 3 - Requirements for alternative connectors for this intended application are specified in ISO 80369-1. This document does not specify requirements for the medical devices or accessories that use these connectors. Such requirements are given in device-specific standards. NOTE 4 - If a device-specific standard does not exist, the performance and material requirements specified in ISO 80369-1 can be used as guidance.

Obsah

ČSN ISO 10009 Tento dokument poskytuje návod k výběru a aplikaci nástrojů, které lze použít v systému managementu kvality k a) charakterizaci procesu nebo proměnné; b) usnadnění řešení problému; c) zdůraznění oblastí ke zlepšení; d) zlepšení efektivnosti.

Obsah

ČSN P CEN ISO/TS 19321 Tento dokument stanoví datové struktury informací zobrazovaných ve vozidle (IVI), které jsou požadovány různými ITS systémy pro výměnu dat mezi ITS stanicemi. Dokument stanoví obecné a rozšiřitelné datové struktury IVI, které se dále dělí na tzv. kontejnery pro konkrétní data. Přenášené IVI tvoří informace jako je kontextová rychlost, upozornění na práce na silnici, omezení pro vozidla, omezení jízdních pruhů, upozornění na nebezpečí na silnici, navigační služby nebo změna trasy. Informace jsou v kontejnerech uspořádány do dílčích struktur nazývaných datové rámce a datové prvky, které jsou popsány z hlediska svého obsahu a syntaxe. Popisované datové struktury nejsou vázány na konkrétní technologii přenosu, tento dokument tedy neposkytuje specifikaci komunikačního protokolu. Tento dokument poskytuje scénáře použití datové struktury, např. pro komunikaci na krátkou vzdálenost v reálném čase.

Obsah

ČSN EN IEC 62314 ed. 2 This document applies to particular all-or-nothing electrical relays denominated solid-state relays intended for performing electrical operations by single step function changes to the state of electric circuits between the OFF-state and the ON-state and vice versa. This document deals with solid-state relays which are intended for incorporation in other products or equipment. As such, solid-state relays are considered to be components and this document defines the basic safety-related and functional requirements for solid-state relays as stand-alone components. Such solid-state relays are incorporated in products or equipment which themselves comply with the relevant product and/or application standard(s) to meet their intended application. NOTE - The following are examples of such applications: - general industrial equipment; - electrical facilities; - electrical machines; - electrical appliances; - office communications; - building automation and environmental control; - automation and process control; - electrical installation engineering; - medical engineering; - telecommunications; - vehicle engineering; - transportation engineering; - lighting control. Solid state relay as apparatus: Where the solid-state relay is specified as apparatus with a function to the end-user, requirements on EMC are given in this document. Solid state relay as component: There are no EMC requirements for solid-state relays intended for incorporation into the equipment by the equipment manufacturer, because the performance strongly depends on the application into the equipment. The object of this document is to state: the characteristics of solid-state relays - the requirements which apply to solid-state relays with reference to a) electrical safety; b) their operation and behaviour; c) their dielectric properties; d) EMC; the tests verifying that the requirements have been met, and the test methods to be adopted; the information to be given with the solid-state relay or in the product documentation. Solid-state switching devices with monolithic structures fall within the scope of IEC sub committee 47E and are not covered in this document. Semiconductor controllers and contactors fall within the scope of the IEC 60947 series of standards - low-voltage switchgear and controlgear - developed by IEC subcommittee 121A and are not covered in this document.

Obsah

ČSN EN IEC 60384-8 ed. 3 This part of IEC 60384 is applicable to fixed capacitors of ceramic dielectric with a defined temperature coefficient (dielectric Class 1), intended for use in electronic equipment, including leadless capacitors but excluding fixed surface mount multilayer capacitors of ceramic dielectric, which are covered by IEC 60384-21 (Class 1). Capacitors for electromagnetic interference suppression are not included, but are covered by IEC 60384-14. The object of this document is to specify preferred ratings and characteristics and to select from IEC 60384-1:2021, the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of capacitor. Test severities and requirements specified in detail specifications referring to this document provide specific test severities and requirements of an equal or higher performance level. Further information on the conception of generic, sectional and detail specifications can be found in the Introduction of IEC 60384-1:2021.

Obsah

ČSN EN 16838 This document specifies classification, requirements for the construction, performance and energy consumption testing of: - gelato scooping cabinets used for sale and display of artisan and self-made gelato; - pozzetto used for sale of artisan and self-made gelato, without any display function. It specifies test conditions and methods for checking that the requirements have been satisfied, their marking and the list of their characteristics to be declared by the manufacturer.

Obsah

ČSN EN IEC 60422 ed. 3 Tato norma poskytuje návody a postupy pro monitorování, které jsou vyžadovány pro použití a údržbu minerálních izolačních olejů a jiných kapalin na bázi uhlovodíků v transformátorech a jiných elektrických zařízeních, včetně strategických náhradních dílů a nádrží pro uložení náhradních dílů a součástí. Je použitelný pro minerální izolační oleje, původně dodávané v souladu s IEC 60296, v transformátorech, rozváděčích a jiných elektrických zařízeních, kde je přiměřeně proveditelné odebírání vzorků oleje a kde platí normální provozní podmínky uvedené ve specifikacích zařízení. Má také pomoci obsluze energetického zařízení vyhodnotit stav oleje a udržovat jej v provozuschopném stavu. Poskytuje také společný základ pro přípravu specifičtějších a úplnějších místních kodexů správné praxe. Dokument obsahuje doporučení týkající se zkoušek a postupů hodnocení a nastiňuje metody mechanického čištění a regenerace oleje a dekontaminace oleje kontaminovaného PCB.