Normy

Obsah

ČSN EN IEC 63402-1 This part of IEC 63402 specifies general requirements and the architecture between the Point of Common Coupling (PCC) and smart devices (SD) operating within the Smart Grid premises-side system (i.e. residential or commercial but not industrial premises). This document does not include requirements for: - safety - electromagnetic compatibility (EMC); - data security, as it is assumed that the underlying protocols will take the data security aspect into account NOTE - Although data security is not within the scope of this document, Clause 4 provides some high-level design guidelines for data security. - special equipment (e.g. legacy heat pumps) with a direct physical connection to the grid, as such equipment bypasses the customer energy manager (CEM) and is not HBES/BACS enabled (covered by other standards than the IEC 63402 series). This group EE publication is primarily intended to be used as an EE standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document.

Obsah

ČSN EN IEC 60122-2 This part of IEC 60122 has been compiled in response to a generally expressed desire on the part of both users and manufacturers for guidelines to the use of quartz crystal units for filters and oscillators so that the crystal units may be used to their best advantage. It draws attention to some of the more fundamental questions which will be considered by the user before it places its order for a unit for a new application, and in so doing will, it is hoped, help ensure against unsatisfactory performance, unfavourable cost and non-availability. It is not the function of this document to explain theory, nor to attempt to cover all the eventualities that can arise in practical circumstances. Lastly, it it is not considered as a substitute for close liaison between manufacturer and user. Standard specifications, such as those of the IEC of which these guidelines form a part, and national specifications or detail specifications issued by manufacturers, will define the available combinations of the resonant characteristics and the temperature characteristic. These specifications are compiled to include a wide range of quartz crystal units with standardized performances. It cannot be over-emphasized that it is the responsibility of the user, wherever possible, to select the quartz crystal units from these specifications, when available, even if it can lead to making small modifications to the circuit to enable the use of standard resonators. This applies particularly to the selection of the nominal frequency.

Obsah

ČSN EN IEC 60335-2-104 Tato norma se zabývá bezpečností elektrických zařízení pro zachytávání a/nebo recyklování pro zachycení a/nebo recyklování chladiva z klimatizátorů vzduchu a chladicích zařízení. To platí pro klimatizátory vzduchu, tepelná čerpadla a chladicí zařízení s otevřeným pohonem nebo motor-kompresory, jejichž jmenovitá napětí nejsou vyšší než 300 V u jednofázových spotřebičů a 600 V u ostatních spotřebičů.

Obsah

ČSN EN IEC 60335-2-106 ed. 2 Tato část IEC 60335 se zabývá bezpečností přenosných vyhřívaných koberců, vyhřívaných koberců a podobných spotřebičů, topných jednotek určených pro vytápění místnosti, do níž jsou umístěny, a které jsou určeny pro nainstalování přímo pod materiály použité jako odnímatelné podlahové krytiny takové jako jsou koberce, podlahový vinyl nebo plovoucí laminátové podlahy, jejichž jmenovité napětí nepřesahuje 250 V u jednofázových instalací a 480 V u ostatních instalací, včetně spotřebičů napájených stejnosměrným proudem (DC).

Obsah

ČSN EN ISO 13802 This document specifies frequency and methods for the verification of pendulum impact-testing machines used for the Charpy impact test, Izod impact test, and tensile impact test described in ISO 179-1, ISO 180 and ISO 8256, respectively. Verification of instrumented impact machines is covered insofar as the geometrical and physical properties of instrumented machines are identical to non-instrumented machines. The force/work verification of instrumented machines is not covered in this document. This document is applicable to pendulum-type impact-testing machines, of different capacities and/or designs, with the geometrical and physical properties specified in Clause 5. Methods are specified for verification of the geometrical and physical properties of the different parts of the test machine. These methods are for use when the machine is being installed, has been repaired, has been moved, or is undergoing periodic checking.

Obsah

ČSN EN 18065 This document defines a system for the classification of recycled plastics based on the available data depth (Data Quality Levels, DQL) and provides guidelines for the labelling of the recyclate type and recycled content in compounds. It is intended to support parties involved in the use and trading of recycled plastics, explicitly including digital trading platforms.

Obsah

ČSN EN 18064-6 This document provides characteristics and typical values for polystyrene (PS) recyclates intended for groups of defined applications (the product families). The characteristics and typical values for the different product families are derived from the performance requirements of the products belonging to that family, including requirements for product manufacturing processes where applicable. This document applies to plastic recyclates intended to be used for the manufacturing of (intermediate) products. This document is intended to be used in conjunction with part 1 of this standard series, which describes the designation system for plastic recyclates. The designation system allows comparison between recycled and virgin material at the level of the polymer's defined designatory properties. NOTE 1 - Examples of designations of plastic recyclates are given in Annex A. NOTE 2 - The selection of relevant properties for a product family is based on EN ISO 10350-1, extended with specific properties related to plastic recyclates.

Obsah

ČSN EN 14932 This document specifies the requirements for dimensional, mechanical, oxygen transmission rate and optical characteristics of thermoplastic stretch films for wrapping bales used for ensiling of forage. It specifies a measurement for solar reflectance of the films. This document specifies also test methods to check these requirements. This document is applicable to white, black, or coloured films based on polyethylene materials. It covers the width range from 250 mm up to 1 500 mm. The performances of the stretch films in conformance with this document are based on the use of at least six layers of films, pre-stretched at a ratio between 60 % and 70 % for round bales and a ratio of 55 % and 65 % for wrapping square bales. This document also gives guidance for design for recycling.

Obsah

ČSN EN 13655 This document specifies the requirements related to dimensional, mechanical, optical and thermal characteristics of thermoplastic films for mulching applications in agriculture and horticulture. These mulch films are intended to be removed after use and not incorporated in the soil. These mulch films are not intended to be used for soil disinfection by fumigation. Films for soil disinfection are in the scope of EN 17098-1 [1] and EN 17098-2 [2]. The biodegradable mulch films intended to be incorporated in the soil after used are also not in the scope of this document. They are in the scope of EN 17033 [3]. This document specifies a classification for durability of mulching films and the test methods referred to in this document. This document is applicable to thermoplastic mulch films, used for agriculture and horticulture in Europe, based on polyethylene and/or ethylene copolymers, of the following types: - transparent films; - black films; - reflective films (e.g. white films, black/white films and black/silver films); - films of other colour(s) for weed control (e.g. green, brown). This document defines the criteria for design for recycling of mulch films and refer to EN 18109 for the product lifecycle, including installation, use, removal and collection for end of life for management of the product after its usage. NOTE - Mulch films can be highly soiled by organic and mineral residues at the end of their use life: the observed rates (or levels) of soilage of mulch films can vary from 70 % to 90 %, therefore the film thickness is a key factor on the rate of soilage, the thinnest films (e.g. less than 20 micron) will be the mostly soiled, difficult, expensive to remove, recover and recycle.

Obsah

ČSN EN 14204 This document specifies a test method and the minimum requirements for mycobactericidal activity of chemical disinfectant and antiseptic products that form a homogeneous, physically stable preparation when diluted with hard water or - in the case of ready-to-use-products - with water. Products can only be tested at a concentration of 80 % or less, as some dilution is always produced by adding the test organisms and interfering substance. The method described is intended to determine the activity of commercial formulations or active substances under the conditions in which they are used. This document is applicable to products that are used for equipment disinfection by immersion, surface disinfection by wiping, spraying or flooding or other means and teat disinfection in the veterinary area - i.e. in the breeding, husbandry, production, veterinary care facilities, transport and disposal of all animals except when in the food chain following death and entry to the processing industry. EN 14885 specifies in detail the relationship of the various tests to one another and to "use recommendations". NOTE - This method corresponds to a phase 2 step 1 test.

Obsah

ČSN EN ISO 9239-1 The text of ISO 9239-1:2025 has been approved by CEN as EN ISO 9239-1:2025 without any modification. This document specifies a method for assessing the wind-opposed burning behaviour and spread of flame of horizontally mounted floorings exposed to a heat flux radiant gradient in a test chamber, when ignited with pilot flames. Annex A gives details of assessing the smoke development, when required. This method is applicable to all types of flooring, e.g. textile carpet, cork, wood, rubber and plastics coverings as well as coatings. Results obtained by this method reflect the reaction to fire performance of the flooring, including any substrate if used. Modifications of the backing, bonding to a substrate, underlay or other changes of the flooring can affect test results. It cannot be used alone to describe or appraise the fire hazard or fire risk of floorings under actual fire conditions. Information on the precision of the test method is given in Annex B.

Obsah

ČSN EN ISO 11350 This International Standard specifies a method for the determination of the genotoxic potential of water and waste water using the bacterial strains Salmonella enterica subsp. enterica serotype Typhimurium TA 98 and TA 100 in a fluctuation assay. This combination of strains is able to measure the genotoxicity of chemicals that induce point mutations (base pair substitutions and frameshift mutations) in genes coding for enzymes that are involved in the biosynthesis of the amino acid, histidine. NOTE 1 - ISO 13829[8] applies for the measurement of genotoxicity of samples containing DNA-crosslinking agents. This method is applicable to: - fresh water; - waste water; - aqueous extracts and leachates; - eluates of sediments (fresh water); - pore water; - aqueous solutions of single substances or of chemical mixtures; - drinking water. NOTE 2 - When testing drinking water, extraction and pre-concentration of water samples can prove necessary.