Hlavní oblasti

Oblast zaměření: Polovodiče
Komise : IEC/TC 110 (Electronic display devices)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 1.01.2019
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This document specifies the standard measurement conditions and measuring methods for determining optical properties of the eyewear displays. This document applies to none see-through type (VR goggles) and see-through type (AR glasses) eyewear displays using virtual image optics.

Excluded: Contact lens-type displays, and the retina direct projection displays.

Oblast zaměření: Navigační přístroje
Komise : IEC/TC 80 (Maritime navigation and radiocommunication equipment and systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 1.01.2019
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Amendment

Oblast zaměření: Kovové koroze
Komise : CEN/TC 262 (Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys)
Původce: CEN
K připomínkám do: 4.01.2019
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This document describes methods for measuring the environmental parameters used to classify the corrosivity of indoor atmospheres on metals and alloys.

Oblast zaměření: Kovové koroze
Komise : CEN/TC 262 (Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys)
Původce: CEN
K připomínkám do: 4.01.2019
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This document deals with the classification of low corrosivity of indoor atmospheres.

The aim of this document is to characterise indoor atmospheric environments of low corrosivity that can affect metals and metallic coatings during storage, transport, installation or operational use, to set a consistent way of indoor corrosivity classification, and to prescribe procedures for derivation and estimation of indoor corrosivity categories.

This document specifies technical metals, whose corrosion attack after a defined exposure period is used for determination of corrosivity categories of indoor atmospheres of low corrosivity.

This document defines corrosivity categories of indoor atmospheres according to corrosion attack on standard specimens.

This document indicates important parameters of indoor atmospheres that can serve as a basis for an estimation of indoor corrosivity.

Selection of a method for determination of corrosion attack, description of standard specimens, its exposure conditions and evaluation are the subject of ISO 11844‑2. Measurement of environmental parameters affecting indoor corrosivity is the subject of ISO 11844‑3.

Oblast zaměření: Kovové koroze
Komise : CEN/TC 262 (Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys)
Původce: CEN
K připomínkám do: 4.01.2019
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This International Standard specifies methods for determination of corrosion rate with standard specimens of metals in indoor atmospheres with low corrosivity. For this direct method of evaluation corrosivity different sensitive methods can be applied using standard specimens of the following metals: copper, silver, zinc steel and lead. The values obtained from the measurements are used as classification criteria for the determination of indoor atmospheric corrosivity.

Oblast zaměření: Optika
Komise : CEN/TC 123 (Lasers and laser related equipment)
Původce: CEN
K připomínkám do: 5.01.2019
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This document specifies procedures and techniques for obtaining comparable values for the absorptance of optical laser components.

Komise : CEN/TC 88 (Thermal insulating materials and products)
Původce: CEN
K připomínkám do: 7.01.2019
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Amendment

Komise : CEN/TC 88 (Thermal insulating materials and products)
Původce: CEN
K připomínkám do: 7.01.2019
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Amendment

Oblast zaměření: Plynná paliva a hořlavé plyny
Komise : CEN/TC 238 (Test gases, test pressures and categories of appliances)
Původce: CEN
K připomínkám do: 7.01.2019
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This document gives details for the classification of gas appliances according to the method of supplying combustion air and of evacuating the products of combustion (types). This classification refers to gas appliances that are intended to be installed within buildings and/or outside of the building[1].

The European Standard classifies appliances as type A, B or C according to the basic principle for the evacuation of the products of combustion and air inlet.

In references to a gas appliance/gas appliances connected via “its” or “their” duct or ducts, it is intended that the air inlet duct and/or the discharge duct for carrying any products of combustion are part of the gas appliance. This means that such ducts are certified together with the gas appliance.

In terms of this standard a "single duct" is a flue duct designed and capable to discharging the products of combustion and/or air inlet duct for the air supply for only one appliance.

In terms of this standard a "common duct" is a flue duct designed and capable to discharging the products of combustion and/or air inlet duct for the air supply for more than one appliance.

This European Standard is a guide for the harmonization of product standards, for the preparation of installation standards and for the common understanding of the types of gas appliances.

This European Standard is neither an installation standard nor a product standard.

 

[1] If the appliance is installed outside of the building (if this circumstance is explicitly allowed by the manufacturer) it will not change its classification (i.e.: a type B53 boiler will remain B53 if installed outside according to manufacturer instructions).These appliances are subject to specific additional requirements and tests, according to specific product standards.

Oblast zaměření: Jaderná energie
Komise : CEN/TC 430 (Nuclear energy, nuclear technologies, and radiological protection)
Původce: CEN
K připomínkám do: 7.01.2019
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This guide describes the ceramographic procedure used to prepare sintered (U,Pu)O2 pellets for qualitative and quantitative examination of the pellet microstructure.

The examinations are performed before and after thermal treatment or chemical etching.

They allow:

—    Observation of any cracks, intra- and intergranular pores or inclusions,

—    Measurement of the grain size, porosity and plutonium homogeneity distribution.

The mean grain diameter is measured by one of the classic methods: counting (intercept method), comparison with standard grids or typical images, etc.[1] The measurement of individual grain sizes requires uniform development of the microstructure over the entire specimen.

The plutonium cluster and pore distribution and localisation are generally analysed by automatic image analysis systems. The plutonium distribution is usually revealed by chemical etching but alpha-autoradiography can also be used. The first technique avoids the tendency for autoradiography to exaggerate the size of plutonium-rich clusters due to the distance the alpha particles travel away from the source.

Komise : CEN/TC 139 (Paints and varnishes)
Původce: CEN
K připomínkám do: 7.01.2019
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This document specifies a test method for assessing the discoloration of coating systems on wood due to wood extractives from knots. The discoloration is measured by colorimetry and the result is stated as the colour difference between the coated surface on the knot and the coated surface beside the knot.

Oblast zaměření: Kovové konstrukce
Komise : CEN/TC 135 (Execution of steel structures and aluminium structures)
Původce: CEN
K připomínkám do: 7.01.2019
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This document specifies the product characteristics and performance criteria for steel components and aluminium components manufactured from steel or aluminium constituent products to be used for structural purposes in buildings and civil engineering works where their characteristic affects the mechanical resistance and stability of these construction works or parts thereof. This document only applies for components manufactured according to EN 1090‑2:2018, FprEN 1090‑3:2018, EN 1090‑4:2018 and EN 1090‑5:2017.

This document also gives methods for assessing the performance and specifies requirements for the assessment and verification of constancy of performance for these components.

This document covers series and non-series produced structural components including kits as well as steel parts of composite components.

This document does not cover (components for)

Aluminium structural composite components,

Amusement rides and devices which are machines or not permanently installed,

Anchor channels for use in concrete,

Balustrades unless fulfilling the function of a barrier,

Blind rivets,

Cabinets for cables and power supply installations,

Cables, ropes and wires,

Castings,

Circulation fixtures except sign gantry and cantilevers,

Components for suspended ceilings,

Fasteners glued to timber structures,

Fasteners for use in timber,

Fasteners and anchors for use in concrete and masonry,

Fastening plates and other cast into concrete fastenings,

Flagpoles,

Forgings,

Foundation bolts, column shoes and pile joints cast into concrete,

Joining devices for rail track isolation systems,

Non-structural fences and railings,

Ornamentations,

Piles if non-fabricated,

Pipelines and pipes,

Playground equipment,

Powder actuated fasteners,

Prefabricated steel and stainless steel wire rope systems with end connectors,

Prefabricated tension rod systems with end connectors,

Racking and shelving systems, if not integral part of the load bearing structure of the construction works,

Rails or sleepers for railway systems,

Raised floors,

Rebar connections,

Reinforcing steel for concrete or masonry,

Roof safety products incl. roof ladders and walkways,

Scaffoldings,

Sculptures (Metal Art),

Self-drilling and self-tapping screws,

Steel and aluminium components and elements produced on site,

Steel and aluminium stairs, walkways and fences forming integral part of a machine, silo, tank, etc.,

Steel spring elements,

Structural components for offshore structures,

Structural double skin metal faced sandwich panels,

Temporary structures (e.g. tents, fairground and amusement park machinery and structures)

Traditional craft type and non-structural components (e.g. weather cocks, letter boxes, bicycle racks, fences),

Tuned mass damper systems,

Wind turbine towers.

Komise : CEN/TC 88 (Thermal insulating materials and products)
Původce: CEN
K připomínkám do: 7.01.2019
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Amendment

Oblast zaměření: Jaderná energie
Komise : CEN/TC 430 (Nuclear energy, nuclear technologies, and radiological protection)
Původce: CEN
K připomínkám do: 7.01.2019
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This International Standard describes a method for determining the Oxygen-to-Metal (O/M) ratio in mixed uranium-plutonium oxide (U,Pu)O2±X pellets. The parameters given in the following paragraphs are relevant for pellets within a range of O/M ratio corresponding to 1,98 to 2,01. The method described in the standard must be adapted, with regard to the parameters, if the expected values of O/M ratio are outside the range.

Oblast zaměření: Jaderná energie
Komise : CEN/TC 430 (Nuclear energy, nuclear technologies, and radiological protection)
Původce: CEN
K připomínkám do: 7.01.2019
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This International Standard describes an analytical method for the electrochemical assay of pure plutonium nitrate solutions of nuclear grade, with a total uncertainty not exceeding ± 0,2 % at the confidence level of 0,95 for a single determination (coverage factor, K = 2). The method is suitable for aqueous solutions containing more than 0,5 g/L plutonium and test samples containing between 4 mg and 15 mg of plutonium. Application of this technique to solutions containing less than 0,5 g/L and test samples containing less than 4 mg of plutonium requires experimental demonstration by the user that applicable data quality objectives will be met.

For some applications, purification of test samples by anion exchange is required before measurement to remove interfering substances when present in significant amounts. Refer to Clause 9 for a discussion of interferences and corrective actions. Purification is also appropriate in situations where the purity of the test sample is unknown or when it may fluctuate unpredictably in a manufacturing process.

Clause 10 discusses the changes in application of the method and methodology that can be applied and important considerations when selecting measurement parameters, whilst still remaining within the intended scope of this standard.

Komise : CEN/TC 88 (Thermal insulating materials and products)
Původce: CEN
K připomínkám do: 7.01.2019
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Amendment

Komise : CEN/TC 88 (Thermal insulating materials and products)
Původce: CEN
K připomínkám do: 7.01.2019
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Amendment