Hlavní oblasti

Oblast zaměření: Dálkově řízené systémy
Komise : IEC/TC 57 (Power systems management and associated information exchange)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 9.03.2021
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This part of IEC 61970 belongs to the IEC 61970-450 to IEC 61970-499 series that, taken as a whole, defines at an abstract level the content and exchange mechanisms used for data transmitted between power system analyses applications, control centres and/or control centre components.

The purpose of this document is to rigorously define the subset of classes, class attributes, and roles from the CIM necessary to describe the result of state estimation, power flow and other similar applications that produce a steady-state solution of a power network, under a set of use cases which are included informatively in this standard.

This document is intended for two distinct audiences, data producers and data recipients, and may be read from those two perspectives. From the standpoint of model export software used by a data producer, the document defines how a producer may describe an instance of a network case in order to make it available to some other program. From the standpoint of a consumer, the document defines what that importing software must be able to interpret in order to consume power flow cases.

There are many different use cases for which use of this document is expected and they differ in the way that the document will be applied in each case. Implementers are expected to consider what use cases they wish to cover in order to know the extent of different options they must cover. As an example, the profiles defined in this document will be used in some cases to exchange starting conditions rather than solved conditions, so if this is an important use case, it means that a consumer application needs to be able to handle an unsolved state as well as one which has met some solution criteria.

Oblast zaměření: Světelné zdroje a svítidla
Komise : IEC/SC 34A (Electric light sources)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 9.03.2021
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This part of  IEC  62868 specifies  the safety requirements for flexible organic light emitting diode tiles and panels for use on supplies up to 120 V ripple free DC for indoor and similar general lighting purpose and designed for being bent during the manufacturing process of curved luminaires.

Oblast zaměření: Dálkově řízené systémy
Komise : IEC/TC 57 (Power systems management and associated information exchange)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 9.03.2021
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This part of IEC 61970 belongs to the IEC 61970-450 to IEC 61970-499 series that, taken as a whole, defines at an abstract level the content and exchange mechanisms used for data transmitted between power system analyses applications, control centres and/or control centre components.

The purpose of this document is to rigorously define the subset of classes, class attributes, and roles from the CIM necessary to describe the result of state estimation, power flow and other similar applications that produce a steady-state solution of a power network, under a set of use cases which are included informatively in this standard.

This document is intended for two distinct audiences, data producers and data recipients, and may be read from those two perspectives. From the standpoint of model export software used by a data producer, the document defines how a producer may describe an instance of a network case in order to make it available to some other program. From the standpoint of a consumer, the document defines what that importing software must be able to interpret in order to consume power flow cases.

There are many different use cases for which use of this document is expected and they differ in the way that the document will be applied in each case. Implementers are expected to consider what use cases they wish to cover in order to know the extent of different options they must cover. As an example, the profiles defined in this document will be used in some cases to exchange starting conditions rather than solved conditions, so if this is an important use case, it means that a consumer application needs to be able to handle an unsolved state as well as one which has met some solution criteria.

Oblast zaměření: Textilie
Komise : CEN/TC 248 (Textiles and textile products)
Původce: CEN
K připomínkám do: 14.03.2021
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This document lists the generic names used to designate the different categories of man-made fibres, based on a main polymer, currently manufactured on an industrial scale for textile and other purposes, together with the distinguishing attributes that characterize them. The term “man-made fibres” has been adopted for those fibres obtained by a manufacturing process, as distinct from materials which occur naturally in fibrous form.

This document presents recommendations of rules for the creation of the generic name (Annex A).

NOTE       These rules have been introduced in the sixth edition of ISO 2076, and thus, they could not be applied to the existing generic names of the previous editions.

Annexes include the description of the fibre structures in case of fibre made of several components (Annex B) and the description of modified fibres (Annex C).

Oblast zaměření: Plasty
Komise : CEN/TC 249 (Plastics)
Původce: CEN
K připomínkám do: 15.03.2021
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This document specifies two methods for evaluating the melting behaviour of semi-crystalline polymers.

Melting temperatures determined by the different methods usually differ by several kelvins for the reasons explained in the introduction.

Method A: Capillary tube

This method is based on the changes in shape of the polymer. It is applicable to all semi-crystalline polymers and their compounds.

NOTE 1   Method A can also be useful for the evaluation of the softening of non-crystalline solids.

Method B: Polarizing microscope

This method is based on changes in the optical properties of the polymer. It is applicable to polymers containing a birefringent crystalline phase. It may not be suitable for plastics compounds containing pigments and/or other additives which could interfere with the birefringence of the polymeric crystalline zone.

NOTE 2   Another method applicable to semi-crystalline polymers is described in ISO 11357‑3, Plastics — Differential scanning calorimetry (DSC) — Part 3: Determination of temperature and enthalpy of melting and crystallization.

Oblast zaměření: Ropné produkty
Komise : CEN/TC 336 (Bituminous binders)
Původce: CEN
K připomínkám do: 15.03.2021
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This document specifies the Binder Fast Characterization Test (for short: BTSV test, German: Bitumen-Typisierungs-Schnell-Verfahren). The test is conducted using a Dynamic Shear Rheometer (DSR). It is used to quickly characterize bitumen and bituminous binders and to assess the deformation behaviour at high service temperatures.

This document deals with the testing of fresh paving grade bitumen and modified bitumen, as conditioned in a laboratory ageing procedure (e.g. EN 12607‑1, EN 14769) and also as recovered from asphalt mixtures. The test procedure in accordance with this document is not applicable for bituminous binders with particles larger than 250 μm (e.g. filler material, granulated rubber).

NOTE            The test procedure has not been applied on bituminous binders recovered from bitumen emulsions yet.

The test determines the temperature and the associated phase angle at which a bituminous binder exhibits a defined complex shear modulus in stress-controlled oscillation mode at constant frequency and with continuous increase of the test temperature.

WARNING — The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and to ensure that regulatory requirements are fulfilled prior to application of this document.

Oblast zaměření: Nezařazeno
Komise : CEN/TC 205 (Non-active medical devices)
Původce: CEN
K připomínkám do: 15.03.2021
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This document specifies test methods for the evaluation of aspects of absorbency of wound dressings, test methods for the evaluation of moisture vapour transmission rate of permeable film wound and IV catheter dressings, and test methods to assess waterproofness and conformability.

Except for the requirements for waterproofness, this document does not contain performance requirements for test methods.

Oblast zaměření: Potravinářské produkty
Komise : CEN/TC 275 (Food analysis - Horizontal methods)
Původce: CEN
K připomínkám do: 15.03.2021
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This document describes an isotope dilution method for the quantitative determination of aflatoxins B1, B2, G1, G2 and M1 (AFB1, AFB2, AFG1, AFG2 and AFM1), ochratoxin A (OTA), deoxynivalenol (DON), zearalenone (ZEN), T-2 and HT-2 toxins (T-2 and HT-2) and fumonisins B1 and B2 (FB1 and FB2) in foods by liquid chromatography (LC) coupled with tandem mass spectrometry (MS/MS).

A specific immunoaffinity column (IAC) clean-up is needed for aflatoxins (AFs) and OTA in infant foods (e.g. infant cereals, milk-based powders), in spices, in dried fruits and in nuts.

The method has been validated through an intercollaborative study on different commodity groups: cereals and cereal-based products including food for infant and young children, nuts, spices, dried fruits and milk powder. The ranges of concentrations of each mycotoxin in these naturally contaminated and/or spiked food samples were:

aflatoxin B1:

0,0857 µg/kg – 11,4 µg/kg;

aflatoxin B2:

0,0792 µg/kg – 12,5 µg/kg;

aflatoxin G1:

0,0628 µg/kg – 20,9 µg/kg;

aflatoxin G2:

0,0520 µg/kg – 15,0 µg/kg;

aflatoxin M1:

0,0342 µg/kg – 0,110 µg/kg;

ochratoxin A:

0,448 µg/kg – 17,2 µg/kg;

deoxynivalenol:

45,2 µg/kg – 743 µg/kg;

zearalenone:

9,57 µg/kg – 131 µg/kg;

T-2 toxin:

10,3 µg/kg – 57,9 µg/kg;

HT-2 toxin:

9,50 µg/kg – 81,8 µg/kg;

fumonisin B1:

31,1 µg/kg – 4 262 µg/kg;

fumonisin B2:

44,2 µg/kg – 1 299 µg/kg.

The measuring ranges of the method for each mycotoxin/matrix combination are given in Table 7.

Oblast zaměření: Řízení procesů
Komise : IEC/SC 65C (Industrial networks)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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Amendment

Oblast zaměření: Elektromechanické součástky
Komise : IEC/SC 48B (Electrical connectors)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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This standard covers 2-way and 4-way (data/power) shielded free and fixed connectors for data transmission with frequencies up to 600 MHz and specifies the common dimensions, mechanical, electrical and transmission characteristics and environmental requirements as well as test specifications respectively.

This standard does specify several properties overlapping with specifications in the IEC 63171 series which have been drafted later. In case of conflict the specifications within this document prevail.

NOTE The connectors are intended to be used for single-pair Ethernet (SPE) according to the following IEEE Standards: 10BaseT1 (IEEE 802.3cg), 100Base-T1 (IEEE 802.3bw), 1000Base-T1 (IEEE 802.3bp), and optionally with Power over Data line (PoDL) power supply according to IEEE 802.3bu.

Komise : IEC/SC 46A (Coaxial cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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This blank detail specification applies to coaxial communication cables as described in IEC 61196-6. It specifies the requirements for drop cables for use in cabled television distribution networks operating at temperatures between -40ºC and +70ºC and in the frequency range from 5 MHz to 1000 MHz or from 5 MHz to 3000 MHz and is to be read in conjunction with IEC 61196-1 and IEC 61196-6.

Komise : IEC/SC 46A (Coaxial cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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This part of IEC 61196 applies to coaxial communications cables. It specifies the requirements for CATV drop cables for analogue and digital one and two way signal transmission, e.g. for cable networks for television signals, sound signals, interactive services, surveillance & control systems, and satellite television receiving systems according to the requirements of IEC 60728-1,IEC 60728-1-1, IEC 60728-101, IEC 60728-10, ISO/IEC 11801-1 and ISO/IEC 11801-4. This includes also the transmission of BCT signals provided by a CATV, MATV or SMATV cable network.

The operating frequency is from 5 MHz to 1000 MHz or from 5 MHz to 3 000 MHz.

Operating temperature is between -40 °C and +70 °C

Komise : IEC/SC 46A (Coaxial cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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This part of IEC 61196 describes three methods to determine the UV resistance of sheath materials for electric and for optical fibre cables. These tests apply for outdoor and indoor cable applications according to the product standard. The samples of sheath are taken from the finished cables.

Although this test method is written principally for communication cables, it may be used for energy cables if called up by the relevant product standard.

Where a sheath is of cross-linked (thermosetting) material, it should be recalled that the preparation of moulded plaques should be made before crosslinking.

Methods differ by the nature of the UV source.

Due to the excessive time to failure, the methods described are inappropriate to products where UV resistance is conferred by ≥ 2,0 % carbon black content meeting the requirements defined in IEC 60708.

Oblast zaměření: Silové kondenzátory
Komise : IEC/TC 33 (Power capacitors and their applications)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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Amendment

Oblast zaměření: Elektrické kabely
Komise : IEC/TC 20 (Electric cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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IEC 63294 provides the test methods specified for electric cables with rated voltages up to and including 450/750 V not included in IEC 60811 (series).

Komise : IEC/TC 18 (Electrical installations of ships and of mobile and fixed offshore units)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 16.03.2021
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This International Standard is applicable to AC supply systems with voltages from 1 kV up to and including 36 kV. The requirements contained in other parts of IEC 60092 apply where appropriate, subject to the exceptions stated in the clauses of this document.

Oblast zaměření: Laboratorní sklo
Komise : CEN/TC 332 (Laboratory equipment)
Původce: CEN
K připomínkám do: 16.03.2021
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This International Standard provides methods for the testing, calibration and use of volumetric instruments made from glass and plastic in order to obtain the best accuracy in use.

NOTE       Testing is the process by which the conformity of the individual volumetric instrument with the appropriate standard is determined, culminating in the determination of its error of measurement at one or more points.

The International Standards for the individual volumetric instruments include clauses on the definition of capacity; these clauses describe the method of manipulation in sufficient detail to define the capacity without ambiguity. This International Standard contains supplementary information.

The procedures are applicable to volumetric instruments with nominal capacities in the range of 100 µl to 10 000 ml. These include single-volume pipettes (see ISO 648), graduated measuring pipettes and dilution pipettes (see ISO 835), burettes (see ISO 385), volumetric flasks (see ISO 1042), and graduated measuring cylinders (see ISO 4788 and ISO 6706).

The procedures are not recommended for testing of volumetric instruments with capacities below 100 µl such as micro-glassware.

This International Standard does not deal specifically with pycnometers as specified in ISO 3507. However, the procedures specified below for the determination of volume of glassware can, for the most part, also be followed for the calibration of pycnometers.