Normy

Obsah

ČSN P CEN ISO/TS 20048-1 This document defines a method for determination of off-gassing (permanent gases) and oxygen depletion from woody as well as non-woody biomass, including densified materials such as pellets and briquettes, as well as non-densified materials such as chips. The method is also applicable for thermally treated materials, including torrefied and carbonized materials. The emission and depletion factor and emission and depletion rate for various gas species emitted from sample within a closed test container is determined by means of gas chromatography. The emission and depletion factor and emission and depletion rate provide guidance for ventilation requirements to keep gas concentrations below Permissible Exposure Levels (PEL) in spaces where workers can be exposed to the enclosed atmosphere.

Obsah

ČSN P CEN/TS 17747 This document gives guidelines on the handling, storage, processing and documentation of venous whole blood specimens intended for DNA, RNA and protein examination from exosomes and other extracellular vesicles during the pre-examination phase before a molecular examination is performed. This document covers specimens collected in venous whole blood collection tubes. The pre-examination process described in this document results in isolated DNA, RNA and proteins from enriched exosomes and other extracellular vesicles. This document is applicable to molecular in vitro diagnostic examinations performed by medical laboratories. It is also intended to be used by health care institutions including facilities collecting and handling specimen, laboratory customers, in vitro diagnostics developers and manufacturers, biobanks, institutions and commercial organizations performing biomedical research, and regulatory authorities. Different dedicated measures are taken during the pre-examination phase for venous whole blood circulating cell-free RNA (ccfRNA) examination and for venous whole blood circulating cell-free DNA (ccfDNA) examination, both without prior enrichment of exosomes and other extracellular vesicles. These are not described in this document but are covered in EN ISO 20186-3, Molecular in vitro diagnostic examinations - Specifications for pre-examination processes for venous whole blood - Part 3: Isolated circulating cell free DNA from plasma and CEN/TS 17742, Molecular in vitro diagnostic examinations - Specifications for pre-examination processes for venous whole blood - Isolated circulating cell free RNA from plasma. NOTE - International, national or regional regulations or requirements can also apply to specific topics covered in this document.

Obsah

ČSN EN ISO 3506-6 This document specifies general rules and provides technical information on stainless steels and their properties, which are relevant when using other parts of the ISO 3506 series. It includes specifications for corrosion-resistant stainless steels and nickel alloys, which are suitable for the manufacture of fasteners. It applies to austenitic, martensitic, ferritic and duplex (austenitic-ferritic) stainless steel grades and nickel alloys for fasteners, and is intended to be used together with the relevant parts of the ISO 3506 series. Common designations of stainless steels and nickel alloys used for fasteners are given in Annex A.

Obsah

ČSN EN ISO 14644-8 This document establishes typical assessment processes to determine grading levels of air chemical cleanliness (ACC) in cleanrooms and associated controlled environments, in terms of airborne concentrations of specific chemical substances (individual, group or category), and provides a protocol to include test methods, analysis and time-weighted factors for their determination. This document currently considers only concentrations of air chemical contaminants between 100 g/m3 and 10-12 g/m3 under cleanroom operational conditions. This document is not relevant for application in those industries, processes or productions where the presence of airborne chemical substances is not considered a risk to the product or process. It is not the intention of this document to describe the nature of air chemical contaminants. This document does not give a classification of surface chemical contamination.

Obsah

ČSN EN 17610 This document provides product category rules (PCR) for Type III environmental declarations for: - Building hardware products for opening and closing doors, gates, windows and shutters: - Lever handles and knob furniture (EN 1906); - Single-axis hinges (EN 1935); - Hardware for windows and door height windows (EN 13126 (all parts)); - Fittings for shutters (e.g. EN 14648); - Controlled door closing devices, electrically powered hold-open devices for swing doors and door coordinator devices (EN 1154, EN 1155, EN 1158); - Hardware for sliding doors, folding doors and roll fronts (EN 1527, EN 15706); - Glass door gear; - Building hardware products for locking and unlocking doors, gates, windows and shutters: - Mechanically operated locks and locking plates, multipoint locks, latches and locking plates (EN 12209, EN 156851); - Cylinders for locks (EN 1303); - Padlocks and padlock fittings (EN 12320); - Mechanically operated push-button locksets (BS 8607); - Emergency exit devices operated by a lever handle or push pad, for use on escape routes and panic exit devices operated by a horizontal bar, for use on escape routes (EN 179, EN 1125); - Electromechanical building hardware products: - Mechatronic cylinders (EN 15684); - Mechatronic padlocks (EN 16864); - Mechatronic door furniture (EN 16867); - Electromechanically operated locks and striking plates (EN 14846); - Electrically controlled exit systems for use on escape routes (EN 13637). This document complements the core rules for the product category of construction products as defined in the European standard EN 15804:2012+A2:2019. The core PCR: - defines the parameters to be declared and the way in which they are collated and reported; - describes which stages of a product's life cycle are considered in the EPD and which processes are to be included in the life cycle stages; - defines rules for the development of scenarios; - includes the rules for calculating the Life Cycle Inventory and the Life Cycle Impact Assessment underlying the EPD, including the specification of the data quality to be applied; - includes the rules for reporting the predetermined, environmental and health information that is not covered by Life Cycle Assessment (LCA) for the product, construction process(es) and construction service(s), as relevant; - defines the conditions under which construction products can be compared based on the information provided by EPD. For the EPD of construction services the same rules and requirements apply as for the EPD of construction products.

Obsah

ČSN EN 13814-2 Tento dokument specifikuje minimální požadavky nezbytné k zajištění bezpečné údržby, provozu, inspekce a testování zábavních jízd a zábavních zařízení, která jsou určena k instalaci jak opakovaně, aniž by došlo k poškození nebo ztrátě integrity, tak dočasně nebo trvale na výstavištích a v zábavních parcích nebo v jiných jiná místa. Tribuny, zařízení na staveništi, lešení, odnímatelné zemědělské konstrukce, jednoduchá dětská zábavní zařízení na mince, přepravující až tři děti a rekreační zařízení, jako jsou tobogány nebo letní sáňkařské dráhy, vybavení dětských hřišť, lanová hřiště, lezecká stěna, nafukovací prvky, trampolíny, zařízení bazénů (tento seznam není vyčerpávající) nejsou zahrnuty do tohoto dokumentu. Z hlediska ochrany zdraví a bezpečnosti pracovníků platí národní předpisy.

Obsah

ČSN EN IEC 61340-5-3 ed. 3 Tato norma definuje vlastnosti ochranných obalů proti ESD, které jsou potřebné pro ochranu součástek citlivých na elektrostatický výboj (ESDS) v průběhu všech fází výroby, údržby/úpravy, přepravy a skladování. Jsou citovány zkušební metody pro hodnocení obalů a materiálů obalů pro tyto výrobky a vlastnosti materiálů. Rovněž jsou uvedeny požadované meze vlastností. Tato norma se nevztahuje na ochranu před elektromagnetickým rušením (EMI), elektromagnetickými impulzy (EMP) ani ochranou elektricky iniciovaných výbušných materiálů nebo zařízení.

Obsah

ČSN EN 61952 ed. 2 This International Standard applies to composite line post insulators consisting of a loadbearing cylin-drical insulating solid core consisting of fibres - usually glass - in a resin-based matrix, a housing (outside the insulating core) made of polymeric material and end fittings permanently attached to the insulating core. Composite line post insulators covered by this standard are subjected to cantilever, tensile and compressive loads, when supporting the line conductors. They are intended for use on a.c. overhead lines with a rated voltage greater than 1 000 V and a frequency not greater than 100 Hz.

Obsah

ČSN EN ISO 22007-2 This document specifies a method for the determination of the thermal conductivity and thermal diffusivity, and hence the specific heat capacity per unit volume of plastics. The experimental arrangement can be designed to match different specimen sizes. Measurements can be made in gaseous and vacuum environments at a range of temperatures and pressures. This method gives guidelines for testing homogeneous and isotropic materials, as well as anisotropic materials with a uniaxial structure. The homogeneity of the material extends throughout the specimen and no thermal barriers (except those next to the probe) are present within a range defined by the probing depth(s) (see 3.1). The thermal-transport properties of liquids can also be determined, provided care is taken to minimize thermal convection.

Obsah

ČSN EN ISO 13479 This document specifies a test method for determining the resistance to slow crack growth of polyolefin pipes, expressed in terms of time to failure in a hydrostatic pressure test on a pipe with machined longitudinal notches in the outside surface. The test is applicable to pipes of wall thickness greater than 5 mm.

Obsah

ČSN EN 12976-1 Tato norma stanovuje požadavky na trvanlivost, spolehlivost a bezpečnost průmyslově vyráběných solárních tepelných soustav. Norma rovněž obsahuje pravidla pro hodnocení shody s těmito požadavky a stejně tak je zahrnut koncept systémových řad. Požadavky této normy se použijí na průmyslově vyráběné solární soustavy jako výrobky. Vlastní montáž těchto soustav, včetně jejich integrace do střech nebo fasád není uvažována, ale jsou dány požadavky na dokumentaci pro montážníka a uživatele, která má být dodána se soustavou.

Obsah

ČSN EN 15031 This document is applicable to aluminium based coagulants (aluminium sulfate, aluminium chloride (monomeric), aluminium chloride hydroxide (monomeric), aluminium chloride hydroxide sulfate (monomeric), sodium aluminate and polyaluminium chloride hydroxide and polyaluminium chloride hydroxide sulfate) used directly or for the production of formulations for treatment of water for swimming pools. It describes the characteristics of aluminium based coagulants and specifies the requirements and the corresponding test methods for aluminium based coagulants. It gives information on their use in swimming pool water treatment. It also determines the rules relating to safe handling and use (see Annex B).