Normy

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ČSN EN ISO 2507 This document specifies a specific method for determining the Vicat softening temperature (VST) of thermoplastics pipes and fittings. It includes the adaption of method B 50 of ISO 306:2022 using a force of 50 N and a heating rate of 50 °C/h and the procedure for specimen preparation. It includes the particular test conditions for determining the Vicat softening temperature (VST) of unplasticized poly(vinylchloride) (PVC-U) or chlorinated poly(vinylchloride) (PVC-C) pipes and fittings, for high impact resistance poly(vinylchloride) (PVC-HI) pipes and for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittings. This document can also be used for pipes and fittings from other materials (e.g. PE-UHMW).

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ČSN EN 18136 This document specifies requirements for the chemical and physical properties as well as quality control procedures for ground limestone for use as an addition in concrete. This document is also applicable to ground limestone to be used in mortars and grouts. This document does not specify provisions for the use of ground limestone in the production of concrete.

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ČSN EN ISO 19634 This document specifies the symbols to be used to represent physical, mechanical and thermal characteristics, as determined by methods described in relevant International Standards, for ceramic matrix composites. This document also specifies the symbols used in undertaking measurements of these characteristics. This document specifies symbols that are in accordance with the relevant parts of the ISO 80000 series where possible.

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ČSN EN ISO 10318-1 This document defines terms related to the functions, products, and properties in geosynthetics, and terms used in International Standards on geosynthetics.

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ČSN P CEN/TS 17011-3 This document describes: - the rationale for building customisation supporting business cases that are specific to their business environ-ment while maintaining organisational and semantic interoperability with the TC 440 specifications; - the difference between Usage specification and Extension specification; - a methodology on how to define customisations on: - BII Transaction specification, - Business rules, - Code lists; - how to claim compliance or conformance to a customisation of a TC 440 specification; - the connection to the eProcurement Ontology project. This specification does not describe the detailed process of building an extension.

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ČSN EN ISO 21719-1 This document establishes a framework and specifies electronic fee collection (EFC) functions for the personalization process of on-board equipment (OBE) used for EFC. The personalization process takes place within the domain of the entity that is responsible for the application in the OBE. This document is applicable to the EFC interface, e.g. using dedicated short-range communication or integrated circuit(s) card, between the personalization equipment (PE) and OBE as shown in Figure 1. This document does not cover the following: - whether the personalization functionality resides completely in the PE or whether this functionality instead resides in a central system, where the PE is more or less "transparent"; - the exact application command or message structures for the EFC personalization functionality (these are dependent on the communication media and are described in subsequent parts of the ISO 21719 series); - the test procedures for evaluation of an implementation for conformity to the requirements in this document; - setting-up of operating organizations (e.g. toll service provider, personalization agent, trusted third party). NOTE - Some of the issues listed above are subject to separate documents prepared by ISO/TC 204, CEN/TC 278 and the European Telecommunications Standards Institute - Electromagnetic compatibility and Radio Spectrum Matters (ETSI ERM).

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ČSN EN ISO 10642 This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A. NOTE 1 - Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753. NOTE 2 - The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load shown by a specific marking (property class preceded by a zero). The loadability in the head is assumed to be 80 % of that in the thread for all sizes and all property classes; see Table 5. NOTE 3 - Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.

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ČSN EN IEC 60721-3-7 ed. 2 This part of IEC 60721 classifies the groups of environmental parameters and their severities to which products are subject to during portable and non-stationary use. This includes periods of transfer, down time, maintenance and repair. The environmental conditions encompassed by these groups include the environmental conditions occurring - at locations where the product can be placed or used temporarily, and - during the transfer of products between different locations. The conditions of portable and non-stationary use to which products can be exposed include land-based and offshore, weatherprotected, and non-weatherprotected locations. The conditions also include those occurring during transfer between locations. The environmental conditions specified in this document are applicable to products which are frequently moved from place to place, particularly when the transfer time can be a significant proportion of the product's lifetime. During such transfer, the product is unlikely to have any special packaging. The environmental conditions specified in this document do not consider the use profile of the product, i.e., whether the product is used only during a temporary stationary state, during the state of transfer or arbitrary. Accidental incidents such as fire, explosion and other unforeseen incidents are not included. However, it can be important to take their occurrence into account in special cases. Micro-climates occurring within a product are not included. Classification for stationary use, storage and transportation environmental conditions are given in other subparts of the IEC 60721-3 series.

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ČSN EN 17192 This document specifies the requirements and test methods for rigid or semi-rigid non-metallic ductwork which are used for ventilation and air conditioning in buildings and excludes flexible ducts and ductwork made from insulation duct board. The specified test methods are under laboratory conditions and exclude on-site tests.

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ČSN EN ISO 15957 This document defines the properties of load test dusts used for heating, ventilation and air conditioning (HVAC) air filters as well as air cleaning equipment in laboratories. Test dusts used for evaluation of efficiency performance are not included.

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ČSN EN ISO 22109 This document specifies basic requirements for gearboxes to operate industrial valves for manual and automated on/off and modulating duties, including manual override gearboxes. It includes guidelines for classification, design and methods for conformity assessment. This document does not cover gear systems which are an integral part in the design of valves and subsea gearboxes. Other requirements or conditions of use different from those indicated in this document are agreed between the purchaser and the manufacturer or supplier (first party) prior to order.

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ČSN EN 15542 This document specifies the requirements and test methods applicable to factory applied cement mortar coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C. Coatings according to this document are suitable for soils of all common corrosion loads and trenchless applications. Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion protection properties of the cement mortar coating. These operations are normally covered in the laying instructions supplied by the manufacturers of pipes, clamps, house connection saddles, etc. and any relevant users' procedures. Such instructions are not part of this document.