Normy

Obsah

ČSN EN ISO 10460 This document specifies the requirements for the periodic inspection and testing of welded aluminium-alloy, carbon and stainless steel gas cylinders of water capacity from 0,5 l to 150 l intended for compressed and liquefied gas service under pressure and to verify the integrity of such gas cylinders for further service. It also applies, as far as is practical, to cylinders of less than 0,5 l water capacity and greater than 150 l up to 450 l. This document does not apply to the periodic inspection and testing of acetylene cylinders or composite (fully wrapped or hoop-wrapped) cylinders. It is primarily intended for use with cylinders containing industrial gases other than liquefied petroleum gas (LPG). This document may also be applicable to LPG. Requirements for LPG applications are also provided in ISO 10464.

Obsah

ČSN EN ISO 29463-3 This part of ISO 29463 specifies the test procedure for testing the efficiency of flat sheet filter media. It is intended for use in conjunction with ISO 29463-1, ISO 29463-2, ISO 29463-4 and ISO 29463-5.

Obsah

ČSN EN ISO 14509-1 This part of ISO 14509 specifies the conditions for obtaining reproducible and comparable measurement results of the maximum sound pressure level of airborne sound generated during the passage of powered recreational craft of up to 24 m length of hull, including inboards, stern drives, personal watercraft (PWC) and outboard motors. It also specifies standard craft based type tests for stern drives with integral exhaust systems and for outboard motors. It also specifies the procedure to be followed if, in addition to the maximum sound pressure level, the determination of the sound exposure level is desired. NOTE: For craft other than those specified above, ISO 2922 is applicable for sound emission measurements. The accuracy grade of the acoustical test procedures specified in this part of ISO 14509 is engineering grade (grade 2).

Obsah

ČSN EN 50064 This document applies to wrought aluminium and aluminium alloy enclosures and their welding. These enclosures are pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases, used in indoor and outdoor installations of high-voltage switchgear and controlgear with rated voltages above 1 kV, where the gas is used principally for its dielectric and/or arc-quenching properties with rated voltages

Obsah

ČSN EN 50068 This document applies to wrought steel enclosures and their welding. These enclosures are pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases, used in indoor and outdoor installations of high-voltage switchgear and controlgear with rated voltages above 1kV, where the gas is used principally for its dielectric and/or arc-quenching properties with rated voltages:

Obsah

ČSN EN ISO 683-4 Norma ISO 683-4 stanoví technické dodací požadavky pro polotovary (například ocelové bloky, sochory, válcované bramy), tyče a válcované dráty vyrobené z automatových ocelí, neurčené k tepelnému zpracování, vhodné k cementování a k zušlechťování.

Obsah

ČSN EN 1279-5 Tento dokument obsahuje výrobkovou normu pro izolační skla pro použití ve stavebnictví.

Obsah

ČSN EN ISO 22477-1 This document establishes the specifications for the execution of static pile load tests in which a single pile is subjected to an axial static load in compression in order to define its load-displacement behaviour. This document is applicable to vertical piles as well as raking piles. All types of piles are covered by this document. The tests considered in this document are limited to maintained load tests. Pile load tests with constant penetration rate and cyclic load tests are not covered by this document. NOTE: This document is intended to be used in conjunction with EN 1997-1. EN 1997-1 provides numerical values of partial factors for limit states and of correlation factors to derive characteristic values from static pile load tests to be taken into account in design. This document provides specifications for the execution of static axial pile load tests: a) checking that a pile will behave as designed; b) measuring the resistance of a pile.

Obsah

ČSN EN 13200-3 This document specifies design requirements for layout and product characteristics for separating elements within spectator accommodation at permanent or temporary entertainment venues including sport stadia, sport halls, indoor and outdoor facilities for the purpose of enabling their functionality. Other permanent venues such as theatres, cinemas, opera houses, lecture halls and similar are excluded from this document. Elements and barriers included in this document are: - barrier front of a row of fixed seats; - barrier adjacent to end row of seats; - barrier behind a rear row of seats; - barrier at the foot of a gangway or on stairway, aligned at right angles to the direction of movement; - side or lateral barrier, aligned parallel to the direction of spectator movement; - gangway barriers; - gangway barriers in standing areas, aligned at right angles to the direction of spectator movement; - crush barriers; - barriers for spectator galleries; - external perimeter barriers and barriers between sectors.

Obsah

ČSN EN ISO 22653 This European standard specifies two methods of assessing the frictional properties of lining and insocks, irrespective of the material.

Obsah

ČSN EN 16523-1+A1 This European Standard specifies a test method for the determination of the resistance of protective clothing, gloves and footwear materials to permeation by potential hazardous liquid chemicals under the condition of continuous contact. This test method is applicable to the assessment of protection against liquid chemicals that can be collected only by liquid or gaseous collecting media. This test method is not !applicable to " the assessment of chemical mixtures, except for aqueous solutions. This standard is used with the specifications given in the products standards (for example !EN ISO 374 1:2016 " for gloves) where the following information is defined: - any pre-conditioning; - precise sampling (place, size, number); - associated levels of performance.

Obsah

ČSN EN ISO 23470 This document specifies a method for the determination of cation exchange capacity (CEC) and the content of exchangeable cations (Al, Ca, Fe, K, Mg Mn, Na) in soils using a hexamminecobalt(III)chloride solution as extractant. For soils containing calcium carbonate a calcite saturated hexamminecobalt(III)chloride solution is specified particularly for determination of exchangeable Ca. This document is applicable to all types of air-dry soil samples which have been prepared according to ISO 11464.