Normy

Obsah

ČSN EN 12814-1 This document specifies the dimensions and the method for sampling and preparing test specimens, together with the conditions for carrying out the bend test. The result of the test is also influenced by the deformation behaviour of the tested material, the kind of welding process and the geometry of the sample. The test is applicable to plate and tube butt jointed assemblies made from thermoplastic materials filled or unfilled, but not reinforced, irrespective of the welding process used. It is not applicable to assemblies with a wall thickness < 3 mm.

Obsah

ČSN EN 13385 This document specifies the minimum requirements for inspection at time of filling of battery vehicles and multiple-element gas containers (MEGCs) for compressed and liquefied gases. The elements of battery vehicles and MEGCs covered by this document are: - seamless steel or seamless aluminium alloy cylinders or tubes, and - composite cylinders or tubes (hoop-wrapped or fully-wrapped) with a water capacity up to 3000 l. This document is not applicable to MEGCs using tanks as elements. This document is not applicable to the automotive components of a battery trailer. NOTE - Acetylene battery-vehicles are covered by EN 13720 [1].

Obsah

ČSN EN 12081 This document is a part of a package of standards: EN 12080, EN 12081, EN 12082-1 and EN 12082-2. This document specifies the quality requirements of greases intended for the lubrication of axlebox rolling bearings according to EN 12080, required for reliable operation of trains on European networks. It covers the requirements for conformity assessment of new greases, as well as requirements for quality batch control and change management.

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ČSN EN 9242 The purpose of this document is to: - remind the end-purpose of the development phase (see Clause 5); - precise the content and outcomes of a development plan (see Clause 6). This document is a supporting document that supplements EN 9241 regarding the specific aspects to be taken into account in the development plan. The iteratively realized development plan is consistent with the documents identified in 6.2.2. This document applies to each level of the product breakdown structure. In particular, it takes into account the customer/supplier relationships.

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ČSN EN 3475-408 This document specifies a method of testing the fire resistance of "fire-proof" electrical cables.

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ČSN EN 6050 This document specifies the characteristics of close tolerance pins, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050-T73 with chemical film, inch series, with a maximum operating temperature of 80 °C for aerospace applications.

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ČSN EN 3050 This document specifies the characteristics, qualification and acceptance requirements for O-rings in low compression set fluorocarbon rubber (FKM) in accordance with EN 2798.

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ČSN EN 3049 This document specifies the characteristics of O-rings in fluorocarbon rubber (FKM), low compression set, hardness 80 IRHD, for aerospace applications. They are intended to be used in air, mineral / synthetic oil and fuel systems. Operating conditions - Temperature: a) Continuous operation: -20 °C to +225 °C; b) Static applications minimum temperature of use: -50 °C. Limitation: not used with phosphoric ester type hydraulic fluids (permanent or temporary immersion).

Obsah

ČSN EN 4855-02 This document specifies a test procedure to identify performance characteristics and a weight rating of convection and steam ovens used on aircraft. Furthermore, it specifies the calculation procedure to determine an energy consumption index and a performance index. There is no direct correlation between the ECO efficiency and cooking performance in terms of food quality and appearance. The two index values represent the ECO efficiency.

Obsah

ČSN EN IEC 60966-2-8 ed. 2 This part of IEC 60966 is a detail specification that applies to cable assemblies with F-Quick connectors (see IEC 61169-47) and requires quad-shield screening class A++ (see IEC 61196 6 5). This document applies to the cable assemblies for radio and TV receivers.