Normy

Obsah

ČSN EN ISO 17409 This document specifies electric safety requirements for conductive connection of electrically propelled road vehicles to external electric circuits. External electric circuits include external electric power supplies and external electric loads. This document provides requirements for the charging modes 2, 3, 4, as defined in IEC 61851-1, and reverse power transfer. For mode 4, this document provides requirements regarding the connection to an isolated DC EV charging station according to IEC 61851-23. NOTE 1 - This edition does not provide requirements for mode 1. NOTE 2 - External electric circuits are not part of the vehicle. This document applies to the on-board sections of vehicle power supply circuits. It applies also to dedicated power supply control functions used for the connection of the vehicle to an external electric circuit. It does not provide comprehensive safety information for manufacturing, maintenance and repair personnel. NOTE 3 - ISO 6469-3 provides general electrical safety requirements for electrically propelled road vehicles. NOTE 4 - With this edition of this document the limitation of y-capacitance for protection against electric shock under single failure conditions is no longer applicable as a fault protection provision when the vehicle has a conductive DC connection to an external electric circuit.

Obsah

ČSN EN 15741 This document specifies a gas chromatographic mass spectrometric (GC-MS) method for the determination of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in compound feeds and feed materials (oils and fats, fish meal). The method is applicable to compound feeds consisting of less than 20 % water by mass and oil/fatty samples containing residues of one or more of the following OCPs and PCBs and some of their isomers and degradation products: - aldrin; - dieldrin; - chlordane, as the sum of chlordane isomers and oxychlordane; - dichlorodiphenyltrichloroethane (DDT), as the sum of isomers o,p'-DDT, p,p'-DDT, p,p' TDE (p,p'-DDD), and p,p'-DDE; - endosulfan, as the sum of alpha-/beta-isomers and endosulfan-sulphate; - endrin, as the sum of endrin and delta-keto-endrin; - heptachlor, as the sum of heptachlor and heptachlor epoxide; - hexachlorobenzene (HCB); - hexachlorocyclohexane isomers alpha-HCH (alpha-BHC), beta-HCH (beta-BHC), -HCH (-BHC or lindane); - photo heptachlor; - cis- and trans-nonachlor; - non dioxin-like PCBs (ndl-PCBs), as the sum of PCB 28, 52, 101, 138, 153 and 180. The method has been fully validated by a collaborative trial for the substances and corresponding ranges (µg/kg) noted in Table 1.

Obsah

ČSN EN ISO 10211 Norma stanoví podrobnosti pro trojrozměrný a dvojrozměrný geometrický model tepelného mostu pro numerický výpočet: - tepelných toků ke zhodnocení celkové tepelné ztráty budovy nebo její části; - minimálních povrchových teplot ke zhodnocení rizika povrchové kondenzace. Tyto podrobnosti zahrnují použité geometrické okrajové podmínky a pomocné rozdělení modelu, teplotní okrajové podmínky, tepelné hodnoty a výpočtové vztahy. Norma je založena na těchto předpokladech: - všechny fyzikální vlastnosti jsou nezávislé na teplotě; - uvnitř stavebního prvku nejsou žádné tepelné zdroje. Norma se může použít také pro odvození lineárních a bodových činitelů prostupu tepla a teplotních faktorů povrchu. Do normy jsou výrazně včleněny vazby k soustavě norem ENB podle ISO 52000-1.

Obsah

ČSN EN ISO 16972 This document defines terms and specifies units of measurement for respiratory protective devices (RPDs), excluding diving apparatus. It indicates graphical symbols that can be required on RPDs, parts of RPD or instruction manuals in order to instruct the person(s) using the RPD as to its operation.

Obsah

ČSN EN 17092-1 This document describes some of the test methods for use with EN 17092 protective garments for motorcycle riders (Part 2 and following parts). It describes the appropriate test methods for zoning, ergonomics, mechanical properties and impact abrasion resistance.

Obsah

ČSN EN 71-7+A3 Tato část EN 71 stanovuje požadavky na látky a materiály používané v barvách nanášených prsty a platí pouze pro tyto barvy. Dodatečné požadavky jsou stanoveny pro značení, označování štítkem a nádobky.

Obsah

ČSN EN IEC/IEEE 82079-1 ed. 2 Tato část mezinárodní normy 82079 obsahuje zásady a obecné požadavky na informace pro používání produktů. Informace pro použití produktů zahrnují všechny fáze životního cyklu produktu, například dopravu, montáž, instalaci, uvedení do provozu, provoz, monitorování, odstraňování problémů, údržbu, opravu, vyřazení z provozu a likvidaci a příslušné úkoly prováděné kvalifikovanými a nekvalifikovanými osobami. Tento dokument poskytuje společné a základní aspekty sloužící jako závazný a obecný rámec pro budoucí další části tohoto souboru norem. Tento dokument je určen všem stranám odpovědným za koncepci, tvorbu, údržbu, překlad, lokalizaci, integraci obsahu, výrobu, poskytování a vyhodnocování, získávání a poskytování informací pro použití.

Obsah

ČSN P CEN/TS 17400 This document focuses on the principal aspects of urban ITS where vendor lock-in is recognized as a technical and financial problem: primarily centre-to-field communications and traffic management systems. It will cover the following scope: - approaches to the management of MVEs by urban authorities, including mitigation and migration options; - procedural and operational protocols to achieve interworking, using product/interface adaptation, translation products, replacement/reengineering, and other migration strategies; - technical options for interworking multiple vendors' products; - mechanisms to enable interoperability through automated translation between specifications, frameworks and product interfaces; - review of principal approaches taken to date to implement these options in community frameworks and specifications.

Obsah

ČSN EN ISO 3506-1 This document specifies the mechanical and physical properties of bolts, screws and studs, with coarse pitch thread and fine pitch thread, made of corrosion-resistant stainless steels, when tested at the ambient temperature range of 10 °C to 35 °C. It specifies property classes in relation to austenitic, martensitic, ferritic and duplex (austenitic-ferritic) steel grades for fasteners. The term "fasteners" is used in this document when bolts, screws and studs are considered all together. ISO 3506-6 provides general rules and additional technical information on suitable stainless steels and their properties. Fasteners conforming to the requirements of this document are evaluated at the ambient temperature specified in paragraph 1. It is possible that they do not retain the specified mechanical and physical properties at elevated and/or lower temperatures. NOTE 1 - Fasteners conforming to the requirements of this document are used without restriction in applications ranging from -20 °C to +150 °C; however, fasteners conforming to this document are also used for applications outside this range down to -196 °C and up to +300 °C. For more details, see Annex A and ISO 3506-6. Outside the temperature range of -20 °C to +150 °C, it is the responsibility of the user to determine the appropriate choice for a given application in consultation with an experienced fastener metallurgist and by taking into account e.g. stainless steel composition, duration of exposure at elevated or low temperature, the effect of the temperature on the fasteners mechanical properties and clamped parts, and the corrosive service environment of the bolted joint. NOTE 2 - ISO 3506-5 is developed in order to assist in the selection of appropriate stainless steel grades and property classes intended for use at temperatures up to +800 °C. This document applies to bolts, screws and studs: - with ISO metric thread in accordance with ISO 68-1, - with diameter/pitch combinations in accordance with ISO 261 and ISO 262, - with coarse pitch thread M1,6 to M39, and fine pitch thread M8×1 to M39×3, - with thread tolerances in accordance with ISO 965-1 and ISO 965-2, - with specified property classes, and - of any shape. Stainless steel grades and property classes can be used for sizes outside the diameter limits of this document (i.e. for d < 1,6 mm or d > 39 mm), provided that all applicable chemical, mechanical and physical requirements are met. Certain bolts, screws and studs might not fulfil the tensile or torsional requirements of this document because of the geometry of their head or unthreaded shank, thus resulting in reduced loadability (e.g. when shear area in the head is less than the stress area in the thread; see 8.2.2). This document does not apply to set screws and similar threaded fasteners not under tensile stress (see ISO 3506-3). It does not specify requirements for functional properties such as: - torque/clamp force properties, - shear strength, - fatigue resistance, or - weldability.

Obsah

ČSN EN ISO 10360-5 This document specifies acceptance and periodic reverification tests of CMM performance with contacting probing systems and is only applicable to CMMs using: - any type of contacting probing system; and - spherical or hemispherical stylus tip(s). NOTE - CMM probing performance tests are specified by the maximum permissible errors (MPEs), due to the impracticality of isolating the performance of the probing system from that of the CMM, even on a small artefact such as a test sphere. This document applies to CMMs supplied with any of the following: a) single-stylus probing systems; b) multi-stylus probing systems with fixed multiple styli attached to a single probe (e.g. "star" stylus); c) multiple probing systems such as those with a stylus for each of their probes; d) systems with articulating probing systems; e) stylus and probe changing systems; f) manual (non-driven) and automated CMMs; g) installations including a scanning probe, capable of being used in a scanning mode. This document is not applicable to non-contacting probing systems, which require different testing procedures. The term 'combined CMM and multi-stylus probing system size error' has been shortened to 'multi-stylus size error' for convenience. This applies in similar cases. If it is desirable to isolate the probing system performance as far as is practical, the influence of the CMM can be minimized but not eliminated. See Annex C for more information.

Obsah

ČSN EN IEC 61788-7 ed. 3 This part of IEC 61788 describes measurement of the surface resistance (Rs) of superconductors at microwave frequencies by the standard two-resonator method. The object of measurement is the temperature dependence of Rs at the resonant frequency. The applicable measurement range of Rs for this method is as follows: - Frequency: 8 GHz < f < 30 GHz - Measurement resolution: 0,01 m at 10 GHz The Rs data at the measured frequency, and that scaled to 10 GHz, assuming the f 2 rule for comparison, is reported.

Obsah

ČSN EN IEC 61076-8-101 This part of IEC 61076 describes 2-pole or 3-pole power plus 2-pole signal shielded and sealed connectors with plastic housing (hereinafter referred to as a connector) for electrical and electronic equipment, including overall dimensions, interface dimensions, technical characteristics, performance requirements and test methods. This document is applicable to electrical connectors with sealing and shielding requirements meeting this document, with a rated voltage up to and including 750 V a.c. or 1 000 V d.c. and a current rating of 40 A, in the field of electrical and electronic equipment.