Infoteenus
33 SIDETEHNIKA
Uued standardid
EVS-EN IEC 62351-7:2026
Power systems management and associated information exchange - Data and communications security - Part 7: Network and system management (NSM) data object models
Käsitlusala:
IEC 62351-7:2025 defines network and system management (NSM) data object models that are specific to power system operations. These NSM data objects will be used to monitor the health of networks and systems, to detect possible security intrusions, and to manage the performance and reliability of the information infrastructure. The goal is to define a set of abstract objects that will allow the remote monitoring of the health and condition of IEDs (Intelligent Electronic Devices), RTUs (Remote Terminal Units), DERs (Distributed Energy Resources) systems and other systems that are important to power system operations.
Power systems operations are increasingly reliant on information infrastructures, including communication networks, IEDs, and self-defining communication protocols. Therefore, management of the information infrastructure has become crucial to providing the necessary high levels of security and reliability in power system operations.
The telecommunication infrastructure that is in use for the transport of telecontrol and automation protocols is already subject to health and condition monitoring control, using the concepts developed in the IETF Simple Network Management Protocol (SNMP) standards for network management. However, power system specific devices (like teleprotection, telecontrol, substation automation, synchrophasors, inverters and protections) need instead a specific solution for monitoring their health.
The NSM objects provide monitoring data for IEC protocols used for power systems (IEC 61850, IEC 60870-5-104) and device specific environmental and security status. As a derivative of IEC 60870-5-104, IEEE 1815 DNP3 is also included in the list of monitored protocols. The NSM data objects use the naming conventions developed for IEC 61850, expanded to address NSM issues. For the sake of generality these data objects, and the data types of which they are comprised, are defined as abstract models of data objects.
In addition to the abstract model, in order to allow the integration of the monitoring of power system devices within the NSM environment in this part of IEC 62351, a mapping of objects to the SNMP protocol of Management Information Base (MIBs) is provided.
The objects that are already covered by existing MIBs are not defined here but are expected to be compliant with existing MIB standards. For example protocols including EST, SCEP, RADIUS, LDAP, GDOI are not in scope.
This edition of IEC 62351-7 cancels and replaces IEC 62351-7 published in 2017. This new edition constitutes a technical revision and includes the following significant technical changes with respect to IEC 62351-7:
a) Reviewed and enriched the NSM object data model;
b) UML model adopted for NSM objects description;
c) SNMP protocol MIBs translation included as Code Components
Power systems operations are increasingly reliant on information infrastructures, including communication networks, IEDs, and self-defining communication protocols. Therefore, management of the information infrastructure has become crucial to providing the necessary high levels of security and reliability in power system operations.
The telecommunication infrastructure that is in use for the transport of telecontrol and automation protocols is already subject to health and condition monitoring control, using the concepts developed in the IETF Simple Network Management Protocol (SNMP) standards for network management. However, power system specific devices (like teleprotection, telecontrol, substation automation, synchrophasors, inverters and protections) need instead a specific solution for monitoring their health.
The NSM objects provide monitoring data for IEC protocols used for power systems (IEC 61850, IEC 60870-5-104) and device specific environmental and security status. As a derivative of IEC 60870-5-104, IEEE 1815 DNP3 is also included in the list of monitored protocols. The NSM data objects use the naming conventions developed for IEC 61850, expanded to address NSM issues. For the sake of generality these data objects, and the data types of which they are comprised, are defined as abstract models of data objects.
In addition to the abstract model, in order to allow the integration of the monitoring of power system devices within the NSM environment in this part of IEC 62351, a mapping of objects to the SNMP protocol of Management Information Base (MIBs) is provided.
The objects that are already covered by existing MIBs are not defined here but are expected to be compliant with existing MIB standards. For example protocols including EST, SCEP, RADIUS, LDAP, GDOI are not in scope.
This edition of IEC 62351-7 cancels and replaces IEC 62351-7 published in 2017. This new edition constitutes a technical revision and includes the following significant technical changes with respect to IEC 62351-7:
a) Reviewed and enriched the NSM object data model;
b) UML model adopted for NSM objects description;
c) SNMP protocol MIBs translation included as Code Components
Alusdokumendid:
IEC 62351-7:2025; EN IEC 62351-7:2026
Asendab:
EVS-EN 62351-7:2017
EVS-EN IEC 61300-3-14:2026
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-14: Examinations and measurements - Error and repeatability of the attenuation settings of a variable optical attenuator
Käsitlusala:
This part of IEC 61300 provides a method to measure the error and repeatability of the attenuation value settings of a variable optical attenuator (VOA). There are two control technologies for VOAs, manually controlled and electrically controlled. This document covers the both control technologies and VOAs of both single-mode and multimode. For electrically controlled VOAs, the hysteresis characteristics of attenuation are sometimes important. The hysteresis characteristics can be measured as stated in Annex B.
Alusdokumendid:
EN IEC 61300-3-14:2026; IEC 61300-3-14:2025
Asendab:
EVS-EN 61300-3-14:2014
EVS-EN IEC 61300-3-7:2021/A1:2026
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components
Käsitlusala:
Amendment to EN IEC 61300-3-7:2021
Alusdokumendid:
EN IEC 61300-3-7:2021/A1:2026; IEC 61300-3-7:2021/AMD1:2025
EVS-EN IEC 61300-1:2022/A2:2026
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance
Käsitlusala:
Amendment to EN IEC 61300-1:2022
Alusdokumendid:
IEC 61300-1:2022/AMD2:2025; EN IEC 61300-1:2022/A2:2026
EVS-EN 303 489 V1.1.1:2026
Lennujuhtimise seire; Sagedustel 1 030 MHz ja 1 090 MHz töötavad laiaulatusliku multilateratsiooni (WAM) süsteemid; Raadiospektrile juurdepääsu harmoneeritud standard
Käsitlusala:
The present document specifies technical characteristics and methods of measurements for the following equipment used in ground-based ATC Surveillance for civil air navigation:
• Wide Area Multilateration (WAM) systems with Mode S capabilities which may include Mode A/C,
transmitting at 1 030 MHz and at 1 090 MHz, and receiving at 1 090 MHz, used for air traffic control with or
without 1 090 MHz phase overlay.
The system operates in the frequencies as indicated in Table 1 below.
Table 1: WAM service frequencies
Signals; Service frequencies
Interrogation Transmission; 1 030 MHz
Reference/Test Transmission; 1 090 MHz
Receive; 1 090 MHz
Antennas for this equipment are passive.
Remote Field Monitors (RFM) as described in ETSI EN 303 363-2 as well as Vehicle transmitters as described in
ETSI EN 303 213-5-2 are not covered in the present document.
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU is given in Annex A.
• Wide Area Multilateration (WAM) systems with Mode S capabilities which may include Mode A/C,
transmitting at 1 030 MHz and at 1 090 MHz, and receiving at 1 090 MHz, used for air traffic control with or
without 1 090 MHz phase overlay.
The system operates in the frequencies as indicated in Table 1 below.
Table 1: WAM service frequencies
Signals; Service frequencies
Interrogation Transmission; 1 030 MHz
Reference/Test Transmission; 1 090 MHz
Receive; 1 090 MHz
Antennas for this equipment are passive.
Remote Field Monitors (RFM) as described in ETSI EN 303 363-2 as well as Vehicle transmitters as described in
ETSI EN 303 213-5-2 are not covered in the present document.
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU is given in Annex A.
Alusdokumendid:
ETSI EN 303 489 V1.1.1
EVS-EN IEC 61757-8-1:2026
Fibre optic sensors - Part 8-1: Pressure measurement - Pressure sensors based on fibre Bragg gratings
Käsitlusala:
This part of IEC 61757 defines the terminology, structure, and measurement methods of optical pressure sensors for gases or liquids based on a diaphragm in combination with fibre Bragg gratings (FBGs) as the sensing element. This document also specifies the most important features and characteristics of these fibre optic pressure sensors and defines procedures for measuring these features and characteristics.
Alusdokumendid:
EN IEC 61757-8-1:2026; IEC 61757-8-1:2025
EVS-EN 302 065-3-3 V3.1.1:2026
Lähitoimeseadmed (SRD), mis kasutavad ultralairiba (UWB) tehnoloogiat;
Raadiospektrile juurdepääsu harmoneeritud standard;
Osa 3. Nõuded maantee- ja raudteesõidukite UWB seadmetele;
Jagu 3. Nõuded UWB raadiotuvastuse rakendustele, mis töötavad sagedusvahemikus 6,0 GHz kuni 8,5 GHz
Käsitlusala:
The present document specifies technical requirements, limits and test methods for UWB devices installed in motor and railway vehicles in the frequency range 6,0 GHz to 8,5 GHz, used for UWB radiodetermination applications.
The present document covers only monostatic radar equipment.
Further details of the covered UWB radiodetermination equipment installed in motor and railway vehicles and the related EUT categories can be found in clause 4.2 of the present document.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU is given in annex A.
The present document covers only monostatic radar equipment.
Further details of the covered UWB radiodetermination equipment installed in motor and railway vehicles and the related EUT categories can be found in clause 4.2 of the present document.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU is given in annex A.
Alusdokumendid:
ETSI EN 302 065-3-3 V3.1.1
Asendatud standardid
EVS-EN 61300-3-14:2014
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-14: Examinations and measurements - Error and repeatability of the attenuation settings of a variable optical attenuator
Käsitlusala:
IEC 61300-3-14:2014(E) provides a method to measure the error and repeatability of the attenuation value settings of a variable optical attenuator (VOA). There are two control technologies for VOAs, manually controlled and electrically controlled. This standard covers both control technologies of VOAs and also covers both single-mode and multimode fibre VOAs. This third edition cancels and replaces the second edition published in 2006 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- title modification replacing the word "accuracy" by "error";
- inclusion of the distinction of manually and electrically controlled variable optical attenuators in the Scope;
- revision of clauses for apparatus and details to be specified to harmonize with other standards in the IEC 61300 series;
- addition of "the maximum deviation of attenuation from setting" to the clause for calculation;- addition of "measurement method of hysteresis characteristics" in Annex B.
Keywords: attenuation value settings, variable optical attenuator (VOA)
- title modification replacing the word "accuracy" by "error";
- inclusion of the distinction of manually and electrically controlled variable optical attenuators in the Scope;
- revision of clauses for apparatus and details to be specified to harmonize with other standards in the IEC 61300 series;
- addition of "the maximum deviation of attenuation from setting" to the clause for calculation;- addition of "measurement method of hysteresis characteristics" in Annex B.
Keywords: attenuation value settings, variable optical attenuator (VOA)
Alusdokumendid:
IEC 61300-3-14:2014; EN 61300-3-14:2014
Asendatud:
EVS-EN IEC 61300-3-14:2026
CEN/CLC/ETSI TR 101551:2014
Guidelines on the use of accessibility award criteria suitable for public procurement of ICT products and services in Europe
Käsitlusala:
The TR will give guidance to procurers on the award criteria relevant to each area of user needs in the procurement of ICT products and services
Alusdokumendid:
CEN/CLC/ETSI TR 101551:2014
Asendatud:
CEN/CLC/ETSI/TR 101551:2026
EVS-EN 62351-7:2017
Power systems management and associated information exchange - Data and communications security - Part 7: Network and system management (NSM) data object models
Käsitlusala:
This International Standard defines network and system management (NSM) data object models that are specific to power system operations. These NSM data objects will be used to monitor the health of networks and systems, to detect possible security intrusions, and to manage the performance and reliability of the information infrastructure. The goal is to define a set of Abstract Objects that will allow the remote monitoring of the health and condition of IEDs (Intelligent Electronic Devices), RTUs (Remote Terminal Units), DER (Distributed Energy Resources) systems and other systems that are important to the power system operations.
Alusdokumendid:
EN 62351-7:2017; IEC 62351-7:2017
Asendatud:
EVS-EN IEC 62351-7:2026
Kavandid
prEN 301 545-2 V1.5.1
Digital Video Broadcasting (DVB);
Second Generation DVB Interactive Satellite System (DVB-RCS2);
Part 2: Lower Layers for Satellite standard
Käsitlusala:
The present document is a specification of the lower layers and the lower layer signalling system for the two-way satellite network variants defined by ETSI TS 101 545-3. The present document constitutes a complete specification of the lower layers for a transparent star satellite network, a transparent mesh overlay satellite network and a regenerative re-multiplexing satellite network. Also, components required for a satellite network with a TRANSEC system are included.
The present document is normative for the consumer terminal profile in a transparent star satellite network as defined by ETSI TS 101 545-3, and does also include normative components specific to the other terminal profiles and satellite network variants defined by ETSI TS 101 545-3.
The present document is normative for the consumer terminal profile in a transparent star satellite network as defined by ETSI TS 101 545-3, and does also include normative components specific to the other terminal profiles and satellite network variants defined by ETSI TS 101 545-3.
Alusdokumendid:
Draft ETSI EN 301 545-2 V1.5.1
prEN 319 412-1 V1.7.0
Electronic Signatures and Trust Infrastructures (ESI);
Certificate Profiles;
Part 1: Overview and common data structures
Käsitlusala:
The present document provides an overview of the Recommendation ITU-T X.509 | ISO/IEC 9594-8 based
certificate profiles and the statements for EU Qualified Certificates specified in other parts of ETSI EN 319 412. It specifies common data structures that are referenced from other parts of ETSI EN 319 412.
The profiles specified in this multi-part deliverable aim to support both Regulation (EU) No 910/2014 and the use
of certificates in a wider international context. Within the European context, it aims to support both EU Qualified
Certificates and other forms of certificate.
certificate profiles and the statements for EU Qualified Certificates specified in other parts of ETSI EN 319 412. It specifies common data structures that are referenced from other parts of ETSI EN 319 412.
The profiles specified in this multi-part deliverable aim to support both Regulation (EU) No 910/2014 and the use
of certificates in a wider international context. Within the European context, it aims to support both EU Qualified
Certificates and other forms of certificate.
Alusdokumendid:
Draft ETSI EN 319 412-1 V1.7.0
prEN 319 412-5 V2.6.0
Electronic Signatures and Trust Infrastructures (ESI);
Certificate Profiles;
Part 5: QCStatements
Käsitlusala:
The present document defines specific QCStatement for the qcStatements extension as defined in IETF RFC 3739, clause 3.2.6, including requirements for their use in EU qualified certificates. Some of these QCStatements can be used
for other forms of certificate.
The QCStatements defined in the present document can be used in combination with any certificate profile, either defined in ETSI EN 319 412-2, ETSI EN 319 412-3 and ETSI EN 319 412-4, or defined elsewhere.
The QCStatements defined in clause 4.3 can be applied to regulatory environments outside the EU. Other requirements specified in clause 4 are specific to Regulation (EU) No 910/2014 but may be adapted for other regulatory environments
for other forms of certificate.
The QCStatements defined in the present document can be used in combination with any certificate profile, either defined in ETSI EN 319 412-2, ETSI EN 319 412-3 and ETSI EN 319 412-4, or defined elsewhere.
The QCStatements defined in clause 4.3 can be applied to regulatory environments outside the EU. Other requirements specified in clause 4 are specific to Regulation (EU) No 910/2014 but may be adapted for other regulatory environments
Alusdokumendid:
Draft ETSI EN 319 412-5 V2.6.0
prEN 300 019-1-3 V3.1.0
Environmental Engineering (EE);
Environmental conditions and environmental tests
for telecommunications equipment;
Part 1: Classification of environmental conditions;
Sub-part 3: Stationary use at weatherprotected locations
Käsitlusala:
The present document defines classes of environmental conditions and their severities to which telecommunication
equipment may be exposed. The severities specified are those which will have a low probability of being exceeded;
generally less than 1 % of the operating time in a year.
The present document applies to equipment mounted for stationary use including periods of erection work, down time,
maintenance and repair at weatherprotected locations defined in clause 5.
equipment may be exposed. The severities specified are those which will have a low probability of being exceeded;
generally less than 1 % of the operating time in a year.
The present document applies to equipment mounted for stationary use including periods of erection work, down time,
maintenance and repair at weatherprotected locations defined in clause 5.
Alusdokumendid:
Draft ETSI EN 300 019-1-3 V3.1.0
prEN 300 019-1-4 V3.1.0
Environmental Engineering (EE);
Environmental conditions and environmental tests
for telecommunications equipment;
Part 1: Classification of environmental conditions;
Sub-part 4: Stationary use at non-weatherprotected locations
Käsitlusala:
The purpose of the present document is to define a class of environmental conditions and their severities to which
equipment may be exposed. Only severe conditions, which may be harmful to the equipment, are included. The
severities specified are those which will have a low probability of being exceeded; generally less than 1 % of the
operating time in a year.
The present document applies to equipment mounted for stationary use including periods of erection work, down time,
maintenance and repair at non-weatherprotected locations defined in clause 5.
equipment may be exposed. Only severe conditions, which may be harmful to the equipment, are included. The
severities specified are those which will have a low probability of being exceeded; generally less than 1 % of the
operating time in a year.
The present document applies to equipment mounted for stationary use including periods of erection work, down time,
maintenance and repair at non-weatherprotected locations defined in clause 5.
Alusdokumendid:
Draft ETSI EN 300 019-1-4 V3.1.0
prEN IEC 60793-1-53:2026
Optical fibres - Part 1-53: Measurement methods and test procedures - Water immersion tests
Käsitlusala:
This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment.
The purpose of this standard is to define a test that determines the suitability of category A1 multimode fibres and class B and C single-mode fibres to withstand the environmental condition of immersion in water which can occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of immersion in water over a given period. This procedure is conducted in accordance with IEC 60068-2-18, Test Rc: immersion.
The purpose of this standard is to define a test that determines the suitability of category A1 multimode fibres and class B and C single-mode fibres to withstand the environmental condition of immersion in water which can occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of immersion in water over a given period. This procedure is conducted in accordance with IEC 60068-2-18, Test Rc: immersion.
Alusdokumendid:
prEN IEC 60793-1-53:2026; 86A/2658/CDV
prEN IEC 60793-1-47:2026
Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobending loss
Käsitlusala:
This part of IEC 60793 establishes uniform requirements for measuring the macrobending loss of single-mode fibres (class B) at 1 550 nm or 1 625 nm, category A1 multimode fibres at 850 nm or 1 300 nm, and category A3 and A4 multimode fibres at 650 nm, 850 nm or 1 300 nm, thereby assisting in the inspection of fibres and cables for commercial purposes.
This document gives two methods for measuring macrobending sensitivity:
– Method A - Fibre winding, pertains to class B single-mode fibres and category A1 multimode fibres.
– Method B - Quarter circle bends, pertains to category A3 and A4 multimode fibres.
For both of these methods, the macrobending loss can be measured utilizing general fibre attenuation techniques, for example the power monitoring technique (see Annex A) or the cut-back technique (see Annex B). Methods A and B are expected to produce different results if they are applied to the same fibre. This is because the key difference between the two methods is the deployment, including the bend radius and length of fibre that is bent. The reason for the difference is that A3 and A4 multimode fibres are expected to be deployed in short lengths with a smaller number of bends per unit fiber length compared to single-mode and category A1 multimode fibres.
In this document, the "curvature radius" is defined as the radius of the suitable circular shaped support (e.g. mandrel or guiding groove on a flat surface) on which the fibre can be bent.
In addition, informative Annex D has been added to approximate bend loss for class B single-mode fibres across a broad wavelength range at various effective bends.
This document gives two methods for measuring macrobending sensitivity:
– Method A - Fibre winding, pertains to class B single-mode fibres and category A1 multimode fibres.
– Method B - Quarter circle bends, pertains to category A3 and A4 multimode fibres.
For both of these methods, the macrobending loss can be measured utilizing general fibre attenuation techniques, for example the power monitoring technique (see Annex A) or the cut-back technique (see Annex B). Methods A and B are expected to produce different results if they are applied to the same fibre. This is because the key difference between the two methods is the deployment, including the bend radius and length of fibre that is bent. The reason for the difference is that A3 and A4 multimode fibres are expected to be deployed in short lengths with a smaller number of bends per unit fiber length compared to single-mode and category A1 multimode fibres.
In this document, the "curvature radius" is defined as the radius of the suitable circular shaped support (e.g. mandrel or guiding groove on a flat surface) on which the fibre can be bent.
In addition, informative Annex D has been added to approximate bend loss for class B single-mode fibres across a broad wavelength range at various effective bends.
Alusdokumendid:
prEN IEC 60793-1-47:2026; 86A/2654/CDV
prEN IEC 60793-1-50:2026
Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state) tests
Käsitlusala:
This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment.
The purpose of this standard is to determine the suitability of class A multimode fibres and class B and C single-mode fibres to withstand the environmental condition of high humidity and high temperature which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of high humidity at constant temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-78, Test Cab: Damp heat, steady state.
NOTE This test method may be used for other fibre categories if agreed between customer and supplier.
The purpose of this standard is to determine the suitability of class A multimode fibres and class B and C single-mode fibres to withstand the environmental condition of high humidity and high temperature which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of high humidity at constant temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-78, Test Cab: Damp heat, steady state.
NOTE This test method may be used for other fibre categories if agreed between customer and supplier.
Alusdokumendid:
prEN IEC 60793-1-50:2026; 86A/2655/CDV
prEN IEC 60793-1-51:2026
Optical fibres - Part 1-51: Measurement methods and test procedures - Dry heat (steady state) tests
Käsitlusala:
This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment.
The purpose of this standard is to determine the suitability of class A multimode fibres and class B and C single-mode fibres to withstand the environmental condition of high temperature (dry heat) which can occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of high temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-2, Test Bd: Dry heat for heat-dissipating specimens with gradual change of temperature that are not powered during the conditioning period.
NOTE This test method may be used for other fibre categories if agreed between customer and supplier.
The purpose of this standard is to determine the suitability of class A multimode fibres and class B and C single-mode fibres to withstand the environmental condition of high temperature (dry heat) which can occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of high temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-2, Test Bd: Dry heat for heat-dissipating specimens with gradual change of temperature that are not powered during the conditioning period.
NOTE This test method may be used for other fibre categories if agreed between customer and supplier.
Alusdokumendid:
prEN IEC 60793-1-51:2026; 86A/2656/CDV
prEN IEC 60793-1-52:2026
Optical fibres - Part 1-52: Measurement methods and test procedures - Change of temperature tests
Käsitlusala:
This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment.
The purpose of this standard is to define a test that determines the suitability of class A multimode fibres, class B and C single-mode fibres and class D polarization-maintaining fibres to withstand the environmental condition of change in temperature which can occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of change of temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-14, Test Nb: Change of temperature with specified rate of change.
NOTE This test method may be used for other fibre categories if agreed between customer and supplier.
The purpose of this standard is to define a test that determines the suitability of class A multimode fibres, class B and C single-mode fibres and class D polarization-maintaining fibres to withstand the environmental condition of change in temperature which can occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of change of temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-14, Test Nb: Change of temperature with specified rate of change.
NOTE This test method may be used for other fibre categories if agreed between customer and supplier.
Alusdokumendid:
prEN IEC 60793-1-52:2026; 86A/2657/CDV