Normy

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ČSN EN 4700-001 This document specifies the requirements for the ordering, manufacture, testing, inspection and delivery of steel and heat-resisting (cobalt, nickel and iron-based alloys) alloy plates, sheets and strips. It is presupposed to be applied when referred to and in conjunction with the EN material standard unless otherwise specified on the drawing, order or inspection schedule.

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ČSN EN 4700-005 This document specifies the requirements for the ordering, manufacture, testing, inspection and delivery of steel and heat-resisting alloy forging stock. It is presupposed to be applied when referred to and in conjunction with the EN material standard unless otherwise specified on the drawing, order or inspection schedule.

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ČSN EN 4700-004 This document specifies the requirements for the ordering, manufacture, testing, inspection and delivery of steel and heat-resisting alloy wires. It is presupposed to be applied when referred to and in conjunction with the EN material standard unless otherwise specified on the drawing, order or inspection schedule.

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ČSN EN IEC 61169-74 This part of IEC 61169, which is a Sectional Specification (SS), provides information and rules for the preparation of Detail Specifications (DS) for series HN RF coaxial connectors with screw coupling with a characteristic impedance of 50 Ohm. This document prescribes mating face dimensions for high performance connectors (grade 2), dimensional details of standard test connectors (grade 0), gauging information and tests selected from IEC 61169-1, applicable to all Detail Specifications relating to series HN RF connectors. This document indicates recommended performance characteristics which are considered when writing a Detail Specification and it covers test schedules and inspection requirements for assessment levels M and H. The series HN connectors are intended to be used in microwave transmission systems and can be connected with all kinds of RF cables and microstrips. The operating frequency is up to 6 GHz.

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ČSN EN 18035 This document specifies the requirements for uncoated high strength steel strands of zinc or zinc alloy coated high strength steel strands, encapsulated with wax and a sheath for construction applications. The document applies only to products as supplied by the manufacturer.

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ČSN EN ISO 18862 This document specifies methods for the determination of acrylamide in coffee and coffee products by extraction with water, clean-up by solid-phase extraction (SPE) and determination by high performance liquid chromatography with tandem mass spectrometric detection (HPLC-MS/MS) and gas chromatography with mass spectrometric detection (GC-MS) after derivatization. The methods were validated in a validation study for roasted coffee, soluble coffee, coffee substitutes and coffee products with ranges from 53 µg/kg to 612,1 µg/kg.

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ČSN EN 13245-3 This document establishes a system of designation for profiles made of cellular unplasticized poly(vinyl chloride) (PVC-UE) intended to be used for building applications. This system is intended to be used in product specification after the application is specified. NOTE - It is intended to use this method for the designation of PVC-UE profiles for information related to technical literature of the manufacturer, not for the marking of the products. This part is applicable to PVC-UE profiles of any colour, obtained by a mono-extrusion or a co-extrusion process, with or without surface finishing (e.g. foil, paint or print). This document defines minimum requirements for the surface finishing of PVC-UE profiles. Profiles for the management of electrical power cables, communication cables and power track systems used for the distribution of electrical power, profiles for windows or doors and profiles for guttering are not covered by this document.

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ČSN EN 1793-1 This document specifies the laboratory method for measuring the sound absorption performance of road traffic noise reducing devices in reverberant conditions. It covers the assessment of the intrinsic sound absorption performance of devices that can reasonably be assembled inside the testing facility described in EN ISO 354. This method is not intended for the determination of the intrinsic characteristics of sound absorption of noise reducing devices to be installed on roads in non-reverberant conditions. The test method in EN ISO 354 referred to in this document excludes devices that act as weakly damped resonators. Some devices will depart significantly from these requirements and in these cases, care is needed in interpreting the results.

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ČSN EN 15051-2 This document specifies the rotating drum test apparatus and associated test method for the reproducible production of dust from a bulk material under standard conditions, and the measurement of the inhalable, thoracic and respirable dustiness mass fractions, with reference to existing European standards, where relevant (see Clause 6). This method is suitable for general bulk material handling processes, including all those processes where the bulk material is dropped, or can be dropped. It differs from the continuous drop method presented in EN 15051 3:2025 [4]. In EN 15051 2:2025 the same bulk material is repeatedly dropped, whilst in EN 15051 3:2025, the bulk material is dropped only once, but continuously. Furthermore, this document specifies the environmental conditions, the sample handling and analytical procedures, and the method of calculating and presenting the results. A categorization scheme for dustiness is specified, to provide a standardized way to express and communicate the results to users of the bulk materials. This document is applicable to powdered, granular or pelletized bulk materials. A standard sample volume is used. This document does not apply to test the dust released when solid bulk materials are mechanically reduced (e.g. cut, crushed).

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ČSN EN ISO 1135-4 This document specifies requirements for single use transfusion gravity sets for medical use to ensure their compatibility with containers for blood and blood components as well as with intravenous equipment. It also provides guidance on specifications relating to the quality and performance of materials used in transfusion sets, presents designations for transfusion set components, and ensures the compatibility of sets with a range of cellular and plasma blood components. NOTE - In some countries, the national pharmacopoeia or other national regulations are legally binding and take precedence over this document.

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ČSN EN ISO 6876 This document specifies the classification, requirements and test methods for endodontic sealing materials used in dentistry. This document is applicable to materials used for conventional orthograde endodontic sealing (Type 1) and materials used for other endodontic sealing procedures including apexification, perforation filling, resorption treatment or retrograde root-end filling (Type 2). The Type 2 endodontic sealing materials may be used for vital pulp therapy. However, this document does not address or include requirements for vital pulp therapy. This document does not specify requirements or test methods for sterility. NOTE 1 - Reference to applicable national regulations and internationally accepted pharmacopeias can be made. NOTE 2 - National requirements regarding sterilization processes, if available, can be used. Standards on methods of validating sterilization processes are also available: ISO 11737-1, ISO 11737-2 and ISO 11737-3.