Normy

Obsah

ČSN EN 4612-010 This document specifies the characteristics of UV laser printable jacket, silver plated copper conductor, electrical cables Crosslinked Ethylene Tetra Fluoro Ethylene co-polymer (XLETFE) family for use in the on-board electrical systems of aircraft operating at temperatures between - 65 °C and 150 °C, operating at voltages not exceeding 600 V rms at sea level and frequencies not exceeding 2 000 Hz. This insulation system has been used in aerospace applications using 115 V (phase-to-neutral) 400 Hz ac and 28 Vdc. Verification of the suitability of cables for use in other electrical systems is the responsibility of the user. These cables are suitable for airframe use without additional protection. In case of conflict between this standard and other referenced documents the requirements of this standard shall take precedence.

Obsah

ČSN EN 4612-006 This document specifies the characteristics of UV laser printable jacket, tin plated copper conductor, electrical cables Crosslinked Ethylene Tetra Fluoro Ethylene co-polymer (XLETFE) family for use in the on-board electrical systems of aircraft operating at temperatures between - 65 °C and 135 °C, operating at voltages not exceeding 600 V rms at sea level. This insulation system has been used in aerospace applications using 115 V (phase-to-neutral) 400 Hz ac and 28 Vdc. Verification of the suitability of cables for use in other electrical systems is the responsibility of the user. These cables are suitable for airframe use without additional protection. In case of conflict between this standard and other referenced documents the requirements of this standard shall take precedence.

Obsah

ČSN EN 3155-027 This document specifies the required characteristics and tests applicable to female electrical contacts 027, type A, crimp, class R, used in elements of connection according to EN 3155-002. The associated male contacts are defined in EN 3155-026.

Obsah

ČSN EN 3155-026 This document specifies the required characteristics and tests applicable to male electrical contacts 026, type A, crimp, class R, used in elements of connection according to EN 3155-002. It shall be used together with EN 3155-001. The associated female contacts are defined in EN 3155-027.

Obsah

ČSN EN 4660-003 The purpose of this MOAA standard is to define a set of open architecture standards, concepts & guidelines for Advanced Avionics Architectures (A3). The three main goals for the MOAA Standards are: - Reduced life cycle costs, - Improved mission performance, - Improved operational performance. The MOAA standards are organised as a set of documents including: - A set of agreed standards that describe, using a top down approach, the Architecture overview to all interfaces required to implement the core within avionics system, - The guidelines for system implementation through application of the standards. The document hierarchy is given in Figure 1: (in this figure the document is highlighted) Figure 1 - MOAA Standard Documentation Hierarchy This standard details the functionality and principle interfaces of an EN 4660 compliant network to ensure the interoperability of Common Functional Modules and design guidelines to assist in implementation of such a network. The purpose of this standard is to establish by means of well defined interfaces and functionality, a network design that is technology transparent and that is open to a multi-vendor market. Therefore, specific data communication network topology, protocols and technologies are not identified in this document. Although the physical organisation and implementation of the network shall remain the System Designers choice, in accordance with the best use of the current technology, it is necessary to define interfaces and parameter sets in order to achieve a logical definition of the network with a defined functionality. This definition includes: - The generic functionality applicable to all networks. - The logical interfaces to the Operating System and Module Support Layers. - Optionally the physical interfaces to the Common Functional Modules (CFM). This document identifies the principle interfaces for the Network, in Clause 4, and where appropriate, provides requirements on network parameters to be defined.

Obsah

ČSN EN IEC 62026-1 ed. 2 (35 4105) Tato část IEC 62026 platí pro rozhraní mezi nízkonapěťovými spínacími přístroji, řídicími přístroji a řadiči (tj. programovatelné řadiče, osobní počítače, atd.). Tento dokument neplatí pro vysokoúrovňové průmyslové komunikační sítě, které jsou známy jako sběrnice a zabývá se jimi subkomise IEC/SC 65C. Účelem tohoto dokumentu je harmonizovat a definovat pravidla, součásti a požadavky obecné povahy platné pro průmyslová CDI. Tyto vlastnosti z různých norem pro CDI, které lze považovat za obecné, byly tudíž sloučeny dohromady v této části IEC 62026. Pro každé CDI jsou pro stanovení všech požadavků a zkoušek nezbytné dva dokumenty: tento dokument, na níž je v příslušných částech pro CDI pokrývajících různé typy CDI odkazováno jako na "IEC 62026-1" nebo "část 1"; předmětová část pro CDI v souboru IEC 62026. Předmětová část pro CDI může vynechat obecný požadavek, jestliže neplatí, nebo ho může doplňovat, je-li v daném případě nedostatečný.

Obsah

ČSN EN IEC 62885-8 This part of IEC 62885 is applicable for measurements of the performance of mains-operated dry vacuum cleaners, including water filter vacuum cleaners, for commercial use. The requirements for the construction and testing covered by this document are applied in addition to the requirements for commercial vacuum cleaners in IEC 60335-2-69. The purpose of this document is to specify essential performance characteristics of dry vacuum cleaners for commercial use that are of interest to operators and to describe methods for measuring these characteristics.

Obsah

ČSN EN 15182-4 (38 9480) In addition to the requirements given in EN 15182-1:2019, this document applies to hand-held high pressure branchpipes (nozzles) with a nominal pressure of 40 bar (4,0 MPa) PN 40, with a maximum flow rate up to 250 l/min at a reference pressure of 6 bar (0,6 MPa). It deals with: - safety requirements; - performance requirements; - test methods. This document applies to branchpipes as defined in Annex A of EN 15182-1:2019.

Obsah

ČSN EN 15182-2 (38 9480) In addition to the requirements given in EN 15182-1:2019, this document applies to hand-held combination branchpipes (nozzles), with a nominal pressure of 16 bar (1,6 MPa) PN 16, with a maximum flow rate up to 1 000 l/min at a reference pressure of 6 bar (0,6 MPa). It deals with: - safety requirements; - performance requirements; - test methods. This document applies to branchpipes as defined in Annex A of EN 15182-1:2019.

Obsah

ČSN EN ISO 11495 This document describes an analytical procedure for the determination of palladium in palladium alloys with a nominal content up to 990 % (parts per thousand), including alloys according to ISO 9202.

Obsah

ČSN ISO 3260 Tato mezinárodní norma specifikuje metodu stanovující stupeň delignifikace buničiny pomocí měření spotřeby chloru.Tato metoda je použitelná pro všechny druhy buničiny.

Obsah

ČSN P CEN/TS 17307 This document specifies a method for the identification of the elastomers in granulates or powder derived from End-of-Life Tyres. The method specified is a qualitative method only.