Normy

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ČSN EN 13946 This document specifies a method for the sampling and laboratory preparation of benthic diatoms for ecological status and water quality assessments. The sampling and preparation procedures described can be used for later investigations using either light microscopy or molecular methods. Data produced by this method are suitable for production of indices based on the relative abundance of taxa. Analysis using molecular methods is not within the scope of the document.

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ČSN EN ISO 17508 This document specifies test methods for the determination of the chemical compatibility of packaging/ IBC made from polyethylene (PE), fluorinated polyethylene and co-extruded plastics. It covers the determination of adequate plastics compatibility against the following processes of deterioration: - softening due to absorption (swelling); - stress cracking; - combinations thereof. This document is applicable to: - drums and jerricans made from plastics; - composite packaging (plastics) with inner receptacle made from plastics; - rigid plastics IBCs (types 31H1 and 31H2); - composite IBCs with rigid plastics inner receptacles (type 31HZ1); used for the transport of liquid dangerous goods. Proof of adequate plastics compatibility obtained using the test procedures specified in this document is only applicable to the above packaging and IBC types of the following materials and material specifications: - packaging and IBCs made from PE; - packaging and IBCs made from PE, whose internal surfaces are fluorinated; and - packaging and IBCs which are coextrusion blow moulded and have walls with the following multilayer structure (from inside to outside): - polyamide (PA), bonding agents, PE, or - ethylene vinyl alcohol (EVOH), bonding agents, PE. Note - Packaging and IBCs made from PE and packaging and IBCs made from PE with fluorinated internal surfaces, deteriorate additionally due to molecular degradation reactions with the corresponding packaged substances. For this, the chemical compatibility can also be verified by the type tests described in ISO 13274:2013, Annex B, B.2.3, using the standard liquid nitric acid (55 %) or appropriate original packaged substances. Packaging made from Coex PE/PA and Coex PE/EVOH is not resistant to polar acid molecularly degrading substances such as nitric acid, with the result that a corresponding method is not considered for this process of deterioration in this document.

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ČSN ETSI EN 301 489-13 V2.1.1 The present document concerns the assessment of Citizens' Band (CB) radio equipment intended for the transmission of speech and associated support equipment with regard to ElectroMagnetic Compatibility (EMC). Requirements relating to the antenna port and emissions from the housing port of CB radio equipment are not included in the present document. Such requirements can be found in the relevant product standards for the effective use of the radio spectrum, see Table 1. NOTE - The relationship between the present document and the essential requirements of article 3.1(b) of Directive 2014/53/EU [i.4] is given in annex A.

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ČSN EN ISO 21182 This document specifies test methods for determining the dynamic and static coefficients of friction for light conveyor belts according to ISO 21183-1.

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ČSN EN 81-83 This document provides rules on how to apply EN 81-71:2022 to existing lifts to improve their vandal resistance. It is detailing the general requirement for vandal resistance as referred to in EN 81-80:2019, Annex A, Table A.1, No. 1.2. NOTE - EN 81-71:2018 referenced in EN 81-80:2019 has been replaced by EN 81-71:2022 without technical changes. The reference to category 0 has been removed. This document applies to permanently installed lifts serving defined landing levels, having a car designed for the transportation of persons or persons and goods.

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ČSN EN 4855-01 This document specifies the test procedures and calculations to determine the ECO efficiency of the following catering equipment installed in an aircraft: - chilling equipment (with and without freeze function); - ovens (steam and convection ovens); - beverage makers (coffee makers, water heaters); - trash compactors (single and double bin); - espresso makers (grain, powder, pad and capsule based). Based on the results it will be possible to derive the energy consumption index and a performance index of the considered equipment type. The two index values represent the ECO efficiency.

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ČSN EN IEC 61169-64 ed. 2 This part of IEC 61169, which is a sectional specification (SS), provides information for the preparation of detail specifications (DS) for coaxial connectors with 0,8 mm inner diameter of the outer conductor, characteristic impedance of 50 Ohm, and with screw coupling. These connectors are referred to below as type 0,8 connectors. They are used in telecommunications technology as well as in test and measurement applications for operating frequencies up to 145 GHz. This document describes mating face dimensions for high performance connectors (grade 1) and standard test connectors (grade 0), gauging information and tests selected from IEC 61169 1, applicable to all detail specifications relating to type 0,8 connectors. This document indicates the recommended performance characteristics to consider when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H. NOTE - Dimensions are in mm. All un-dimensioned pictorial configurations are for reference purposes only.

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ČSN EN IEC 60384-14-2 ed. 3 This part of IEC 60384 14 is applicable to the drafting of detail specifications for fixed capacitors and resistor-capacitor combinations for which safety tests only, are required for use in electronic equipment.

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ČSN EN IEC 60384-14-1 ed. 3 This part of IEC 60384-14 is applicable to the drafting of detail specifications for fixed capacitors and resistor-capacitor combinations for which both safety and performance tests based on assessment level DZ, are required for use in electronic equipment.

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ČSN EN IEC 61249-2-53 This part of IEC 61249 specifies requirements for properties of PTFE unfilled reinforced laminated sheet of a thickness 0,05 mm up to 10,0 mm of defined flammability (vertical burning test), copper-clad. This part of IEC 61249 is applicable to the design, manufacture, use of PTFE unfilled reinforced laminated sheet of defined flammability (vertical burning test), copper-clad. Its flame resistance is defined in terms of the flammability requirements of 8.4.

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ČSN EN 50286 ed. 2 This document is applicable to electrical insulating protective clothing used by skilled persons when they are working on or near live parts of low-voltage installations at nominal voltages up to 500 V AC. The purpose of this clothing is to prevent dangerous current from passing through persons when there is a risk of unintentional contact with several live parts located in and around the working area. This document does not deal with protection against the effects of an electric arc, DC applications and voltages higher than 500 AC. The products designed and manufactured according to this document contribute to the safety of the users provided they are used by skilled persons, in accordance with safe methods of work and the instructions for use.

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ČSN EN IEC 62386-351 This part of IEC 62386 is applicable to control devices to be used in, on, or attached to, a luminaire. This document builds on the digital addressable lighting interface as specified in the IEC 62386 series of standards, by adding specific requirements for power consumption, integrated bus and AUX power supplies, a mechanism to arbitrate between multiple application controllers, and a memory bank definition for multi-master devices. This document is only applicable to control devices complying with IEC 62386 103.