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This document specifies requirements for masks and accessories, including any connecting element, that are required to connect the patient-connection port of sleep apnoea breathing therapy equipment to a patient for the application of sleep apnoea breathing therapy (e.g. nasal masks, exhaust ports and headgear).
This document applies to masks and their accessories used to connect sleep apnoea breathing therapy equipment to the patient.
The requirements in this document take priority over the requirements in ISO 18190.
This document does not cover oral appliances.
NOTE            This document has been prepared to address the relevant essential principles[14] and labelling principles[15] of the International Medical Devices Regulators Forum (IMDRF) as indicated in Annex I.

This document specifies two methods for determining the heat resistance of patent leather.
Method A makes use of a modified lastometer, while Method B uses the “Zwik” apparatus. Both methods are applicable to patent leathers for all end uses.

IEC 62841-2-22:2025 applies to hand-held cut-off machines fitted with
- one bonded reinforced wheel of Type 41 or Type 42; or
- one or more diamond cutting wheels with peripheral gaps, if any,
• having no positive rake angle; and
• not exceeding 10 mm for cut-off machines other than flush cutters, power cutters and wall chasers; and with
- a rated no-load speed not exceeding a peripheral speed of the wheel of 100 m/s at rated capacity; and
- a rated capacity not exceeding 430 mm.
NOTE 101 An example of a permitted diamond cutting wheel construction is shown in Figure 106.
These tools are intended to cut materials such as metals, concrete, masonry, glass and tile.
This document does not apply to:
- cut-off machines that can be converted to a grinder, sander or polisher, which are covered by IEC 62841-2-3;
- circular saws which are covered by IEC 62841-2-5; and
- die grinders and small rotary tools which are covered by IEC 62841-2-23;
- tools intended to cut wood, except for utility cutters;
- cut-off machines fitted with a bonded reinforced wheel of Type 42 with a diameter exceeding 230 mm.
This document is to be used in conjunction with IEC 62841-1:2014.

This document specifies a method for determining the colour fastness to water of leather of all kinds at all stages of processing.

The ISO 11929 series specifies a procedure, in the field of ionizing radiation metrology, for the calculation of the “decision threshold”, the “detection limit” and the “limits of the coverage interval” for a non-negative ionizing radiation measurand when counting measurements with preselection of time or counts are carried out. The measurand results from a gross count rate and a background count rate as well as from further quantities on the basis of a model of the evaluation. In particular, the measurand can be the net count rate as the difference of the gross count rate and the background count rate, or the net activity of a sample. It can also be influenced by calibration of the measuring system, by sample treatment and by other factors.
ISO 11929 has been divided into four parts covering elementary applications in ISO 11929-1, advanced applications on the basis of the GUM Supplement 1 in this document, applications to unfolding methods in ISO 11929-3, and guidance to the application in ISO 11929-4.
ISO 11929-1 covers basic applications of counting measurements frequently used in the field of ionizing radiation metrology. It is restricted to applications for which the uncertainties can be evaluated on the basis of the ISO/IEC Guide 98-3 (JCGM 2008). In ISO 11929-1:2025, Annex A, the special case of repeated counting measurements with random influences is covered, while measurements with linear analogous ratemeters are covered in ISO 11929-1:2025, Annex B.
ISO 11929-3 deals with the evaluation of measurements using unfolding methods and counting spectrometric multi-channel measurements if evaluated by unfolding methods, in particular, for alpha- and gamma‑spectrometric measurements. Further, it provides some advice on how to deal with correlations and covariances.
ISO 11929-4 gives guidance to the application of ISO 11929, summarizes shortly the general procedure and then presents a wide range of numerical examples. Information on the statistical roots of ISO 11929 and on its current development may be found elsewhere[30][31].
ISO 11929 also applies analogously to other measurements of any kind especially if a similar model of the evaluation is involved. Further practical examples can be found, for example, in ISO 18589[1], ISO 9696[2], ISO 9697[3], ISO 9698[4], ISO 10703[5], ISO 7503[6], ISO 28218[7] and ISO 11665[8].
NOTE            A code system, named UncertRadio, is available for calculations according to ISO 119291 to ISO 11929-3. UncertRadio[27][28] can be downloaded for free from https://www.thuenen.de/en/institutes/fisheries-ecology/fields-of-activity/marine-environment/coordination-centre-of-radioactivity/uncertradio. The download contains a setup installation file which copies all files and folders into a folder specified by the user. After installation one has to add information to the PATH of Windows as indicated by a pop‑up window during installation. English language can be chosen and extensive “help” information is available. Another tool is the package ‘metRology’[32] which is available for programming in R. It contains the two R functions ‘uncert’ and ‘uncertMC’ which perform the GUM conform uncertainty propagation, either analytically or by the Monte Carlo method, respectively. Covariances/correlations of input quantities are included. Applying these two functions within iterations for decision threshold and the detection limit calculations simplifies the programming effort significantly. It is also possible to implement this document in a spreadsheet containing a Monte Carlo add-in or into other commercial mathematics software.

IEC 60794-1-107:2025 applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. This document defines test procedures used in establishing uniform requirements for torsion performance. Refer to IEC 60794-1-2 for a reference guide to test methods and for general requirements and definitions.
NOTE Throughout this document, the wording "optical cable" also includes optical fibre units, microduct fibre units, etc.
This first edition partially cancels and replaces IEC 60794-1-21:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60794-1-21:2015:
a) Update of the typical test length according to the different types of cables;
b) Update of Figure 2 by loading weights to cable gripping fixture.

This document specifies requirements for single use transfusion gravity sets for medical use to ensure their compatibility with containers for blood and blood components as well as with intravenous equipment.
It also provides guidance on specifications relating to the quality and performance of materials used in transfusion sets, presents designations for transfusion set components, and ensures the compatibility of sets with a range of cellular and plasma blood components.
NOTE            In some countries, the national pharmacopoeia or other national regulations are legally binding and take precedence over this document.

IEC 60794-1-207:2025 describes test procedures to be used in establishing uniform requirements for optical fibre cables for the environmental property: performance degradation when exposed to nuclear radiation. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. Method F7A evaluates performance degradation of optical fibre cable in environmental background radiation; Method F7B evaluates performance degradation of optical fibre cable in adverse nuclear environments.
NOTE Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc.
This first edition cancels and replaces the method F7 of the second edition of IEC 60794-1-22 published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) detailed content of sample, apparatus, procedure, requirements and details of the method to be specified and reported are added.

This part of IEC 60966 is a detail specification that applies to cable assemblies with F-Quick connectors (see IEC 61169-47) and requires quad-shield screening class A++ (see
IEC 61196-6-5). This document applies to the cable assemblies for radio and TV receivers.

This document supplements or modifies the corresponding clauses in IEC 62841-1, so as to convert it into the IEC Standard: Particular requirements for hand-held band saws. Where a particular subclause of IEC 62841-1 is not mentioned in this document, that subclause applies as far as reasonable. Where this document states "addition", "modification" or "replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
IEC 62841-1:2014, Clause 1 is applicable, except as follows:
This document applies to hand-held band saws.

This document specifies methods for determining the density (dry density or fully impregnated density), oil content (related to test piece volume and related to open porosity) and open porosity of permeable sintered metal materials. This document applies in particular to porous metal bearings and to structural parts produced by pressing and sintering metal powders.

This document specifies the test method for assessing the propensity of textile floor coverings to soiling in the absence of abrasive wear and texture changes using a standard artificial soil composition. This document applies to the testing of unused textile floor coverings of all types. This document can also be extended to assess the effects of fibre finishes, cleaning chemicals and cleaning equipment (see Annex A).

IEC 61643-21:2025 is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are intended to be connected to telecommunications and signalling networks, and equipment rated up to 1 000 V RMS and 1 500 V DC. These telecommunications and signalling networks can also provide power on the same line, e.g. Power over Ethernet (PoE). Performance and safety requirements, tests and ratings are specified in this document. These devices contain at least one voltage-limiting component (clamping or switching) and are intended to limit surge voltages and divert surge currents. This second edition cancels and replaces the first edition published in 2000, Amendment1:2008 and Amendment 2:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) New structure of IEC 61643-21 based on IEC 61643-01:2024; b) Several safety requirements based on IEC 61643-01:2024 have been added. This International Standard is to be used in conjunction with IEC 61643-01:2024.

IEC 63341-3:2025 specifies the performance evaluation methodologies for fuel cell power systems that are designed for utilisation in electrically propelled rolling stock. The scope of this document concerns itself exclusively with electrically powered rolling stock. Internal combustion engines utilising hydrogen are not encompassed within the scope of this document. This document is applicable to hydrogen fuel cell power systems for electrically propelled rolling stock. This document does not apply to reformer-equipped fuel cell power systems. This document does not cover the hydrogen fuel systems that are permanently or separately attached to either the rolling stock or the fuel cell power system. These systems are addressed in IEC 63341-2. The fundamental system overview, incorporating the interrelationships between the primary functions and the connections to the external system, is delineated in IEC 63341-1:2025, Figure 4. The relevant standards are comprehensively delineated in IEC 63341-1. The performance targets for fuel cell power systems are agreed upon between the user and the manufacturer

IEC 63437:2025 specifies the essential characteristics of off grid and unreliable grid refrigerating appliances for domestic and similar use or light commercial use, cooled by internal natural or forced air convection. It defines input voltage supply signals for appliances designed for unreliable grid and off grid conditions. An unreliable grid condition can be the result of disturbances on the electricity supply, such as power outages, or issues with power quality, such as voltage spikes and surges, that could cause performance challenges to refrigerating appliances. An off grid supply, in this context, for example is generated by a solar panel or a stand-alone solar home system that is not connected to the power grid. This document simulates the power characteristics in off grid and unreliable grid conditions but does not specify requirements or test procedures to assess performance of generators, solar panels, solar home system or any other system generating a supply signal. The supply signals defined in this document can also be used for evaluation of the performance of other refrigerating appliances such as medical or laboratory appliances, professional storage refrigerators or freezers, refrigerated display cabinets, beverage coolers or ice cream freezers. This document specifies the test methods for measuring the functional performance characteristics and requirements. This document does not apply to refrigerating appliances designed for a good quality and stable electricity grid and refrigerating appliances utilising fuelled absorption cooling technology. This document is applicable to any refrigerating appliance for domestic or light commercial use that has a rated performance to properly operate off grid or under unreliable grid operating conditions resisting power interruptions and supply variations. Off grid and unreliable grid refrigerating appliances are appliances intended to for use with standalone or intermittent or distorted electrical mains. Electrical mains supply is assumed to be alternating current (AC) for unreliable grid or direct current (DC) for off grid. This document is also applicable to hybrid refrigerating appliances.

This document defines terms related to the functions, products, and properties in geosynthetics, and terms used in International Standards on geosynthetics.

This document defines terms related to gene transfer for mammalian systems, including the use of viral and non-viral gene delivery systems and via mechanical mechanisms. This document is applicable to the development, measurement, and use of gene delivery systems for all applications.

IEC 62933-3-1:2025 is applicable to EES systems designed for grid-connected indoor or outdoor installation and operation. This document considers: necessary functions and capabilities of EES systems; sizing and design of EES system; operation of EES system; test items and performance assessment methods for EES systems; requirements for monitoring and acquisition of EES system operating parameters; exchange of system information and control capabilities required; maintenance of EES system. Stakeholders of this document comprise personnel involved with EES systems, which include: - planners of electric power systems and EES systems; - owners of EES systems; - operators of electric power systems and EES systems; - constructors; - suppliers of EES systems and its equipment; - aggregators. Use-case-specific technical documentation, including planning and installation specific tasks such as system design, monitoring, measurement, tests, operation and maintenance, are very important and can be found throughout this document.

This document specifies a method using a farinograph for the determination of the water absorption of flours and the mixing behaviour of doughs made from them by a constant flour mass procedure or by a constant dough mass procedure. The method is applicable to experimental and commercial flours from wheat (Triticum aestivum L.). NOTE This document is related to ICC 115/1[5] and AACC Method 54-21.02[6].