Normy

Obsah

ČSN EN 2591-326 This European Standard specifies a method of determining a component's resistance to a liquid fuelled fire and the elements of connection. It shall be used together with EN 2591-100.

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ČSN EN 2591-318 This European Standard specifies a method of determining fire-resistance of elements of connection. It shall be used together with EN 2591-100.

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ČSN EN 4840-101 This European Standard specifies the required characteristics for heat-shrinkable polyolefin semi-rigid, limited fire hazard heat-shrinkable boots for use in aircraft electrical systems at operating temperatures between -30 °C and 105 °C. The moulded shapes may be supplied with a pre-coated adhesive. Refer to the manufacturers/suppliers for options. A guide to adhesive compatibility is given in Annex A. These moulded shapes are normally supplied in the styles and dimensions given in EN 4840-002 Tables 1 to 22. The colour is normally black. Styles and dimensions other than those specifically listed in EN 4840-002 Tables 1 to 22 may be available as custom items. These items shall be considered to comply with this standard if they comply with the property requirements listed in Table 1 with the exception of dimensions.

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ČSN EN 4641-001 This European Standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance, as well as the test methods and groups for fibre optic cables with a cladding of 125 µm outside diameter.

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ČSN EN 4510 This European standard specifies the characteristics of the pipe coupling adapter, 60° spherical sealing face manufactured in titanium alloy with locking ring, for installing in a boss for aerospace applications. These adapters shall be installed into port connections manufactured in accordance with EN 2602 using ISO 3601-1 sealing O-rings selected sizes. O-ring material depends on the system fluid and operation conditions. The installation shall be performed in accordance with EN 2608. Nominal working pressure: up to 28000 kPa. Temperature range: limited by elastomeric sealing ring, -54 °C to +135 °C.

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ČSN EN 4833 This European Standard specifies the dimensions, tolerances, required characteristics and the mass of an adaptor, flareless tube end EN 6123, ring locked type, for use in 35 000 kPa (5 080 psi) working pressure systems.

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ČSN EN 4834 This European Standard specifies the dimensions, tolerances and requirements of a port for a fluid connection with ring locked fitting, for use in aircraft systems at nominal operating pressure of 35 000 kPa (5 080 psi) maximum and temperature range of -54 to +135 °C (-65 to +275 °F).

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ČSN EN 4835 This European Standard specifies the installation and removal requirements for adaptors and reducers, threaded, with lockring for pipe couplings 24° according to EN 4833 and EN 4836. This standard establishes an accurate procedure of adaptor installation, removal and reinstallation to ensure the repeatability of the installation operation and to ensure the effective compliance to sealing and locking requirements. The adaptor shown on all Figures of this standard is given as an example for the 24° internal cone interface according to EN 6123. This procedure is used for adaptors 24°, for nominal pressure up to 35 000 kPa (5 080 psi).

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ČSN EN 4836 This European Standard specifies the dimensions, tolerances, required characteristics and the mass of a reducer, flareless tube end EN 6123, ring locked type, for use in 35 000 kPa (5 080 psi) working pressure systems.

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ČSN EN 6109 This European Standard defines the requirements for moulded elastomer seal elements for use in hydraulic systems using phosphate ester fluids for aerospace application. It shall be applied in conjunction with relevant material standards unless otherwise specified on the drawing, order, inspection schedule or contractual document.

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ČSN ISO/IEC 14443-1 Tento dokument definuje fyzikální charakteristiky karet s vazbou na blízko (PICC). Musí být používán spolu s dalšími částmi ISO/IEC 14443.

Obsah

ČSN EN ISO 12058-1 This document specifies the general principles of a method, using an inclined tube falling ball viscometer, for determining the viscosity of polymers and resins in the liquid emulsified or dispersed state. It is intended for application to liquids over a viscosity measurement range of 0,6 mPa˙s to 250 000 mPa˙s (temperature range -20 °C to +120 °C) for which the shear stress and shear rate are proportional, i.e. the viscosity is independent of the shear rate. This ideal behaviour is commonly known as Newtonian behaviour. If a liquid differs significantly from this behaviour, different results can be obtained with the different balls of a falling ball viscometer or from viscometers with different geometries, such as capillary and rotational viscometers.