Normy

Obsah

ČSN EN ISO 13165-1 This document specifies the determination of radium-226 (226Ra) activity concentration in non-saline water samples by extraction of its daughter radon-222 (222Rn) and its measurement using liquid scintillation analysis. The test method described in this document, using currently available scintillation counters, has a detection limit of approximately 50 mBq˙l-1. This method is not applicable to the measurement of other radium isotopes.

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ČSN ISO 20539 Dokument definuje termíny pro mezinárodní normy týkající se překladu, tlumočení a souvisící technologie.

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ČSN EN 813 This document specifies requirements, testing, marking and manufacturer's instructions and information for sit harnesses to be used in restraint, work positioning and rope access systems, where a low point of attachment is required. Sit harnesses are not suitable to be used for fall arrest purposes.

Obsah

ČSN EN ISO 16000-11 This document specifies the sampling procedures, transport conditions, storage and substrate used that can affect emissions of volatile organic compounds for three types of building products or furnishing: solid, liquid and combined. For individual products, the preparation of a test specimen for each type is specified.

Obsah

ČSN EN ISO 16021 This document provides guidelines and requirements for designing and conducting an evaluation of single-use adult incontinence absorbing products. It provides guidelines and requirements on creating data collection tools. In particular, it provides a framework for eliciting and recording the views of users and their carers on the acceptability of products. In addition, a product diary is described which can help to quantify some parameters of product use, such as wear times, the mass of urine absorbed by the product and the severity of any leakage from it. This document does not cover direct comparison between products based on statistical parameters, neither does it provide guidelines on measuring the clinical efficacy of products; that is available in ISO 14155.

Obsah

ČSN EN ISO 5365 This document specifies a method for designating the coding and nomenclature for tooth developmental stages using a single letter and number to facilitate data entry and support interoperability. The first letter represents the part of the tooth (crown, root and apex), and the number represents the stage of development of the tooth part.

Obsah

ČSN EN 15186 This document specifies a method for the assessment of the surface resistance to different kinds of visible scratches. It relates to the rigid surfaces of all finished products, regardless of their material. It does not apply to finishes on leather and fabrics. Method A is suitable for all types of surface coatings and coverings except for melamine faced boards (according to EN 14322) and HPL (according to EN 438-1). It simulates measurable penetrating and/or deforming scratches. Method B is suitable for all types of surfaces. It simulates first visible traces (e.g. scratches, marks) that can also be a change in the gloss. The test is intended to be carried out on a part of finished furniture. It can, however, be carried out on test panels of the same material, finished in an identical manner to the finished product, and of a size sufficient to meet the requirements of the test. It is essential that the test be carried out on unused surfaces.

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ČSN EN ISO/IEC 15421 ISO/IEC 15421:2010 specifies the requirements and test methods for physical and related attributes of a bar code master. It covers all forms of bar code master, irrespective of the mode of origination of the initial image, intended for reproduction by conventional printing processes. ISO/IEC 15421:2010 does not cover processes in which there is no master, such as computer to plate (CTP).

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ČSN EN ISO/ASTM 52943-2 This document specifies requirements for the additive manufacturing of metallic parts with directed energy deposition (DED) in the aerospace industry. Within the application scope of this document, wire is used as feedstock, and arc processes (gas-shielded metal arc processes (MIG/MAG/GMAW), tungsten inert gas processes (TIG/GTAW), plasma arc processes (PAW)) are used as the main energy source. This document is to be used in conjunction with the engineering documents, if required by the engineering authority. This document does not address health and safety issues.

Obsah

ČSN EN ISO/ASTM 52909 This document covers supplementary guidelines for evaluation of mechanical properties including static/quasi-static and dynamic testing of metals made by additive manufacturing (AM) to provide guidance toward reporting when results from testing of as-built specimen or specimen cut out from AM parts made by this technique or both. This document is provided to leverage already existing standards. Guidelines are provided for mechanical properties measurements and reporting for additively manufactured metallic specimen as well as those cut out from AM parts. This document does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and determine the applicability of regulatory limitations prior to use. This document expands upon the nomenclature of ISO/ASTM 52900 and principles of ISO 17295 and extends them specifically to metal additive manufacturing. The application of this document is primarily intended to provide guidance on orientation designations in cases where meaningful orientation/direction for AM cannot be obtained from available test methods.

Obsah

ČSN EN 30-1-2+A1 This document specifies the constructional and operational characteristics, as well as the requirements and methods of test for safety and marking, for domestic cooking appliances having forced-convection ovens and /or grills using combustible gases, given in EN 437:2021. This document includes requirements covering the electrical safety of equipment incorporated in the appliance that are associated with the use of gas. It does not include requirements covering the electric safety of electrically-heated components or their associated equipment. This document does not apply to: - outdoor appliances; - appliances connected to a combustion products evacuation duct; - appliances having a pyrolytic gas oven; - appliances having covered burners which do not comply with the constructional requirements of EN 30-1-1:2021, 5.2.8.2.2; - appliances incorporating flame supervision devices and having an automatic ignition device for which the duration of the ignition attempt is limited by design; - appliances equipped with a burner that is periodically ignited and extinguished under the control of an automatic on/off device; - appliances equipped with a burner having a fan for the supply of combustion air or for the evacuation of the products of combustion; - appliances supplied at pressures greater than those defined in EN 30-1-1:2021, 7.1.2; - appliances equipped with an oven and/or with a grill having a fan either for the supply of combustion air or for the evacuation of the products of combustion; - appliances equipped with a compartment in which a burner and an electric heating element can function simultaneously; - appliances having one or more burners that are capable of remote operation (type 1 or type 2), unless the burner(s) concerned are thermostatically controlled oven burners of time-controlled ovens that are designed for a delayed start without the user being present. This document does not cover the requirements relating to third family gas cylinders, their regulators and their connection.

Obsah

ČSN EN 15544 Použití výpočtů tohoto dokumentu umožňuje ověřit hodnoty emisí oxidu uhelnatého, oxidu dusičitého, organicky vázaného uhlíku a prachu a energetickou účinnost. Při dodržení výpočtů tohoto dokumentu jsou hodnoty emisí nižší nebo rovny pro oxid uhelnatý 1 500 mg/mn3 (1 000 mg/MJ), oxid dusičitý 225 mg/mn3 (150 mg/MJ), organicky vázaný uhlík 120 mg/mn3 (80 mg/MJ) a prach 90 mg/mn3 (60 mg/MJ). Pokud se výpočty podle tohoto dokumentu použijí v kombinaci s vhodnými spalovacími komorami, které při zkoušce typu prokáží nižší hodnoty emisí, považují se tyto hodnoty rovněž za splněné. Mohou existovat národní nebo místní předpisy, které stanovují přísnější zákonné požadavky na emise a/nebo účinnost. Tento dokument uvádí výpočty pro dimenzování kachlových/omítnutých kamen na základě potřebného jmenovitého tepelného výkonu uváděného výrobcem. Jedná se o individuálně stavěná kachlová/omítnutá kamna. Tento dokument lze aplikovat na individuálně stavěná kachlová/omítnutá kamna spalující dřevěná polena, s jednorázovou dávkou paliva za akumulační dobu s maximální dávkou od 10 kg do 40 kg (dřevěné poleno s obsahem vody od 12 % do 20 %, tloušťkou od 5 cm do 10 cm v průměru, délkou obvykle od 25 cm do 50 cm a s orientací do spalovací komory) a dobou akumulace (jmenovitá doba vyhřívání) od 8 h do 24 h. Tento dokument platí pro individuálně stavěná kachlová/omítnutá kamna se šamotovou vyzdívkou jako vnitřním materiálem, s objemovou hmotností mezi 1 750 kg/m3 a 2 300 kg/m3, pórovitostí od 17 objemových % do 33 objemových % a s tepelnou vodivostí od 0,90 W/mK do 1,35 W/mK (teplotní rozsah 20 °C až 400 °C). Tento dokument platí pro individuálně stavěná kachlová/omítnutá kamna s bočním přívodem spalovacího vzduchu, s přívodem vzduchu přes rám dvířek nebo svislým roštem dvířek do spalovací komory. Dokument platí pro rychlost přívodu spalovacího vzduchu mezi 2 m/s a 4 m/s. Tento dokument platí také pro kombinaci se spalovacími komorami, které jsou vhodné pro individuálně stavěná kachlová kamna/omítnutá kamna a u nichž byla v rámci zkoušky typu akreditovaným a/nebo oznámeným subjektem ověřena shoda s hodnotami emisí požadovanými právními předpisy. Následující obecné podmínky platí pro spalovací komory: - s poměrem vzduch/palivo mezi 1,95 a 3,95 podle zkoušky typu; - s maximální dávkou paliva od 5 kg do 40 kg; - použití jiných vhodných materiálů a také šamotu. Pokud jde o zkoušku typu, tento dokument se vztahuje na spalovací komory, které jsou zkoušeny: - podle EN 15250 (nebo EN 16510-2-5), - podle EN 13229 (nebo EN 16510-2-2), nebo - podle příslušných národních norem (např. ÖNORM B 8303). Tento dokument platí pro typově zkoušené spalovací komory určené pro dávkové spalování pelet, pokud splňují požadavky podle tohoto dokumentu (poměr vzduch/palivo mezi 1,95 a 3,95, množství pelet spálených za (78 ± 20) min). Tento dokument neplatí pro: - kombinace s výměníky tepla na ohřev vody pro ústřední topení nebo jinými prvky pohlcujícími teplo, jako jsou otevřené nádrže na vodu atd.; - spalovací komory se skleněnými deskami většími než 1/5 povrchu spalovací komory; - sériově vyráběná kamna (spotřebiče s pomalým uvolňováním tepla) nebo částečně sériově vyráběná kamna (spotřebiče s pomalým uvolňováním tepla) podle EN 15250 (nebo EN 6510-2-51)).