Normy

Obsah

ČSN EN ISO 20418-1 This document specifies a qualitative and quantitative testing method to determine the content of wool, cashmere, yak fibres and their blends in textiles by microscope preliminary screening, protein extraction, enzymatic digestion and specific peptides detection using a liquid chromatography-mass spectrometer equipped with electrospray ionization source (LCI-ESI-MC). This method can be applied to relevant textile products at each process stage (i.e. from raw material to garment) with a homogeneous distribution of the components. It can be applied to different types of textile materials (e.g. staples, tops, yarns and fabrics) that contain wool, cashmere or yak fibres and their blends. The method is based on a preliminary identification of all fibres in the blend on the basis of their morphology, by light microscopy. The proteins are then extracted by a thiourea/urea/dithiothreitol (DTT) solution. An enzymatic digestion by trypsin of the protein extracted from the fibres is carried out. Analysis of the specific markers is performed by LC-MS and the percent composition is calculated. This method is applicable to samples containing other kinds of fibres than wool, cashmere and yak, by combining its results with the results obtained using the ISO 1833 series and/or the ISO 17751 series. This document does not apply if fibres of the same animal species are present (e.g. blends of cashmere and mohair); in this case, the quantitative analysis can be performed using microscopic analysis (e.g. ISO 17751 series).

Obsah

ČSN EN ISO 11260 This document specifies a method for the determination of the cation exchange capacity (CEC) at the pH of the soil and for the determination of the content of exchangeable sodium, potassium, calcium and magnesium in soil. This document is applicable to all types of air-dried soil samples. ISO 11464 can be used for pre-treatment.

Obsah

ČSN EN ISO 7488 This document specifies requirements for electrically-powered mixing machines for mixing dental amalgam alloy, and dental mercury in capsules to produce dental amalgam. This document specifies the test methods used to determine conformity with these requirements. This document refers to those machines that mix by an oscillating action and which are sold by the manufacturer for the purpose of mixing dental amalgam whether or not they are intended for mixing any other type of product. This document does not specify requirements for removable mixing-capsules, as are used in many machines to contain the material to be mixed, although considered as part of the machine when in use or under test.

Obsah

ČSN EN ISO 10139-1 This document specifies requirements for the physical properties, test methods, packaging, marking and manufacturer's instructions for soft denture lining materials suitable for short-term use, including functional impression taking using existing removable prosthesis.

Obsah

ČSN EN ISO 28319 This document specifies requirements and test methods for laser welding and the filler materials thereto used in the dental laboratory for welding of metallic restorations and appliances. For filler materials used in laser welding, this document also specifies the information given in the instructions for use, marking and labelling.

Obsah

ČSN ETSI EN 302 969 V1.3.1 The scope of the present document is to define the high level system requirements for reconfigurable Mobile Devices enabling the provision of Radio Applications. The work will be based on the Use Cases defined in ETSI TR 103 062 [i.1] and ETSI TR 102 944 [i.2].

Obsah

ČSN ETSI EN 319 401 V2.2.1 The present document specifies general policy requirements relating to trust service providers (TSPs) that are independent of the type of TSP. It defines policy requirements on the operation and management practices of TSPs. Other specifications refine and extend these requirements as applicable to particular forms of TSP. The present document does not specify how the requirements identified can be assessed by an independent party, including requirements for information to be made available to such independent assessors, or requirements on such assessors. NOTE: See ETSI EN 319 403 [i.6]: "Electronic Signatures and Infrastructures (ESI); Requirements for conformity assessment bodies assessing Trust Service Providers".

Obsah

ČSN EN 1176-2 ed. 2 Tato evropská norma určuje doplňkové bezpečnostní požadavky pro trvale instalované dětské houpačky. Pokud je to vhodné, mohou být použity příslušné bezpečnostní požadavky z této části EN 1176 i tam, kde není houpání hlavní činností hraní.

Obsah

ČSN ISO 30300 Tato mezinárodní norma stanoví termíny a definice příslušné pro normy o MSR zpracované ISO/TC 46/SC 11. Současně vymezuje cíle použití MSR, stanoví zásady pro MSR, popisuje procesní přístup a stanoví role pro vrcholový management.

Obsah

ČSN ISO 31000 Tento dokument poskytuje směrnice pro řízení rizik, kterým jsou organizace vystaveny. Aplikování těchto směrnic může být přizpůsobeno pro jakoukoli organizaci a její kontext. Tento dokument poskytuje společný přístup pro řízení jakéhokoliv typu rizika a není specifický ani pro průmysl, ani pro sektory. Tento dokument lze využívat po celou dobu života organizace a může se použít na jakoukoliv činnost, včetně rozhodování na všech úrovních.

Obsah

ČSN EN ISO 2819 This document specifies methods of checking the adhesion of electrodeposited and chemically deposited coatings. It is limited to tests of a qualitative nature. This document does not describe certain tests that have been developed at various times to give a quantitative measure of adhesion of metallic coating to a substrate, since such tests require special apparatus and considerable skill in their performance which renders them unsuitable as quality control tests for production parts. Some of these quantitative tests can, however, be useful in research and development work.

Obsah

ČSN EN 1011-8 - Tento dokument specifikuje požadavky pro tavné svařování nelegovaných a nízkolegovaných litinových odlitků vyrobených podle: - EN 1561 Slévárenství - Litiny s lupínkovým grafitem; - EN 1562 Slévárenství - Temperované litiny; - EN 1563 Slévárenství - Litiny s kuličkovým grafitem. Tento dokument se neužívá pro spojovací svařování litinových odlitků k jiným materiálům.