Normy

Obsah

ČSN ETSI EN 302 454 V2.2.1 The present document specifies technical characteristics and methods of measurements for digitally modulated radiosondes operating in the range from 1 668,4 MHz to 1 690 MHz. NOTE 1: The present document does not cover radiosondes with an imbedded receiver. NOTE 2: 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 ISO 10582 Tato evropská norma specifikuje vlastnosti heterogenních podlahových krytin bez podložky, sestávajících z polyvinylchloridu (PVC), dodávaných buď ve tvaru dlaždic nebo desek nebo v návinech. Výrobky mohou obsahovat průhlednou povrchovou vrstvu, která neobsahuje PVC. Norma obsahuje klasifikační systém (viz ISO 10874) založený na intenzitě používání, který uvádí prostředí vhodné pro tyto podlahové krytiny. Specifikuje také požadavky na označování.

Obsah

ČSN EN ISO 14052 This document provides guidance for the practical implementation of material flow cost accounting (MFCA) in a supply chain. MFCA fundamentally traces the flows and stocks of materials within an organization, quantifies these material flows in physical units (e.g. mass, volume) and evaluates the costs associated with material flows and energy uses. MFCA is applicable to any organization that uses materials and energy, regardless of its products, services, size, structure, location, and existing management and accounting systems. In principle, MFCA can be applied as an environmental management accounting tool in the supply chain, both upstream and downstream, and can help to develop an integrated approach for improving material and energy efficiency in the supply chain. This document is based on the principles and general framework for MFCA described in ISO 14051. The MFCA framework presented in this document includes scenarios for improving material and energy efficiency in a supply chain, principles for successful application of MFCA in a supply chain, information sharing, and practical steps for the implementation of MFCA in a supply chain.

Obsah

ČSN EN ISO/ASTM 52901 This document defines and specifies requirements for purchased parts made by additive manufacturing. It gives guidelines for the elements to be exchanged between the customer and the part provider at the time of the order, including the customer order information, part definition data, feedstock requirements, final part characteristics and properties, inspection requirements and part acceptance methods.

Obsah

ČSN EN ISO 22397 This International Standard provides guidelines for establishing partnering arrangements among organizations to manage multiple relationships for events impacting on societal security. It incorporates principles and describes the process for planning, developing, implementing and reviewing partnering arrangements.

Obsah

ČSN EN ISO 20728 This document specifies a method for the determination of resistance to stress corrosion cracking (SCC) of magnesium alloys intended for use in structural applications (such as magnesium front end, gearbox and clutch housing units, steering column parts, shift actuators, valve covers and housings, brackets and intake manifold blades, electronic devices, power tools and medical equipment). The method allows determination of the resistance to SCC as a function of the chemical composition, the method of manufacture and heat treatment of magnesium alloys. The document is applicable to cast and wrought magnesium alloys in the form of castings, semi-finished products, parts and weldments and covers the method of sampling, the types of specimens, the loading procedure, the type of environment and the interpretation of results. The document allows assessment of the relative performance of materials and products in environments containing chlorides or sulphates, provided that the failure mechanism is not changed, but does not qualify a material or product for service application.

Obsah

ČSN EN ISO 11990 This document specifies a method of testing the continuous wave (cw) laser resistance of the shaft of a tracheal tube and the cuff regions including the inflation system of tracheal tubes designed to resist ignition by a laser.

Obsah

ČSN EN 17065 Tato evropská norma stanovuje zkušební postupy a přejímací kritéria pro brzdový systém používaný v osobních vozech včetně řídicích vozů pro použití v běžném provozu. Je využitelná pro všechny nové osobní vozy včetně řídicích vozů, které jsou projektovány pro běžný provoz na konvenční evropské železniční síti v souladu s EN 14198. Tato norma nezahrnuje zkoušky pro schvalování dílů brzdy.

Obsah

ČSN EN 4839-001 This European Standard specifies the three-poles temperature compensated arc fault circuit breakers without signal contacts, rated from 3 A to 25 A and used in aircraft on-board circuits. In any operating state a "trip-free" tripping is ensured. These Items are designed to protect aircraft wiring system from circuit overload and arc faults. It describes specific environmental, electrical and mechanical characteristics and the stringency of tests to be applied according to test methods of EN 3841-100. If the design of the arc fault circuit breakers contains software or complex hardware, as a minimum, the software and hardware shall be developed in accordance with RTCA DO-178B or C, DAL C and RTCA DO-254, DAL C, respectively. These circuit breakers are intended for use in aircraft with electrical supplies in accordance with EN 2282.

Obsah

ČSN EN ISO 11192 This International Standard specifies graphical symbols for operator controls, gauges, tell-tales, indicators, instructions and warnings against risks in small craft and for engines and other equipment intended to be used for small craft of up to 24 m length of hull.

Obsah

ČSN EN 13201-2 Tato část evropské normy stanovuje požadavky specifikované prostřednictvím tříd osvětlení pozemních komunikací s ohledem na zrakové potřeby uživatelů pozemních komunikací a zohledňuje environmentální aspekty osvětlení pozemních komunikací. POZNÁMKA: Provozní třídy svítivosti pro snížení omezujícího oslnění a regulaci rušivého světla a provozní třídy oslnění pro snížení rušivého oslnění jsou definovány v informativní příloze A. Osvětlení přechodů pro chodce je popsáno v informativní příloze B. Hodnocení omezujícího oslnění v konfliktních oblastech (třídy C) a u komunikací pro chodce a cyklisty (třídy P) je uvedeno v informativní příloze C.

Obsah

ČSN EN IEC 62885-5 This part of IEC 62885 lists the characteristic performance parameters for high pressure cleaners and steam cleaners in accordance with IEC 60335-2-79. The intent is to serve the manufacturers in describing parameters that fit in their manuals and in their literature. This can include all or some of the parameters listed in this definition document.