CEN - European Committee for Standardization

This document provides information on the characteristic values for use in designing structures incorporating wood-based panels. The characteristic values given are as defined in EN 1995 1 1.
When utilizing the classification system for derivation of plywood characteristic values, this document can only be applied with reference to EN 636.
This document includes the characteristic values of the mechanical properties for plywood complying with EN 636 in bending, tension, compression, panel shear and planar shear. EN 636 classifies bending properties into two sets of classes, one for stiffness and another for strength. Stiffness and strength in tension and compression are related to the same properties in bending.
For shear properties, fixed values determined by correlation to density are provided.
Where optimized values are needed, the characteristic values are determined directly by testing in accordance with EN 789 and EN 1058 or by combination of testing according to the latter two standards and calculation according to EN 14272.
This document applies to panels complying with the three following conditions:
—   5 layers or more and 6 mm overall thickness and more;
—   the ratio of the cumulative thickness of veneers in alternate directions does not exceed 2.5;
—   wood species with a mean density greater than 350 kg/m3 and not exceeding 750 kg/m3.

This document provides information on the characteristic values for use in designing structures incorporating wood-based panels. The characteristic values given are as defined in EN 1995 1 1.
This document includes the characteristic values of both the mechanical properties and density for the panels set out below:
—   OSB/2, OSB/3 and OSB/4, complying with EN 300;
—   Particleboard, P4, P5 P6, P7 complying with EN 312;
—   Hardboard, HB.HLA2 complying with EN 622 2;
—   Medium board, MBH.LA2 complying with EN 622 3;
—   MDF.LA and MDF.HLS complying with EN 622 5;
—   MDF.RWH complying with EN 622 5.

This document specifies requirements for gaseous fire-extinguishing systems, with respect to FK-5-1-12 extinguishant. It includes details of physical properties, specification, usage and safety aspects.
This document is applicable only to systems operating at nominal pressures of 25 bar, 34,5 bar, 42 bar, 50 bar and 70 bar1 with nitrogen propellant. This does not preclude the use of other systems.
1   1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm².

This document defines the core data set for a concise international patient summary (IPS), which supports continuity of care for a person and assists with coordination of their care.
This document provides an abstract definition of a patient summary from which derived models are implementable.
This document does not cover the workflow processes of data entry, data collection, data summarization, subsequent data presentation, assimilation, or aggregation. Furthermore, this document does not cover the summarization act itself, i.e. the intelligence, skills and competences, that results in the data summarization workflow. It is not an implementation guide that is concerned with the various technical layers beneath the application layer. Representation by various coding schemes, additional structures and terminologies are not part of this document.

This document specifies requirements for calibration, verification and validation of equipment used for:
—     control of process variables during fabrication,
—     control of the properties of equipment used for welding or welding allied processes,
where the resulting output cannot be readily or economically documented by subsequent monitoring, inspection and testing. This involves process variables influencing the fitness-for-purpose and in particular the safety of the fabricated product.
NOTE            This document is based on the lists of process variables stated in International Standards for specification of welding procedures, in particular, but not exclusively in the ISO 15609 series. Future revisions of these International Standards can result in addition or deletion of parameters considered necessary to specify.
Some guidance is, in addition, given in Annex B for requirements for calibration, verification and validation as part of acceptance testing of equipment used for welding or allied processes.
This document does not specify requirements to calibrate, verify and validate as part of inspection, testing, non-destructive testing or measuring of final welded products performed in order to verify product conformance.
This document applies only to calibration, verification and validation of equipment for use in production or on site.
This document does not apply to the manufacture and installation of equipment for welding. Requirements for new equipment are formulated in directives and product codes (standards), as necessary.
Annex C provides information when other parties are involved in calibration, verification and validation activities.

This document specifies the characteristics of, and corresponding test methods for, unalloyed titanium for use in the manufacture of surgical implants.
Six grades of titanium based on tensile strength are listed in Table 2.
NOTE            The mechanical properties of a sample obtained from a finished product made of this metal do not necessarily conform with those specified in this document.

1.1   Scope of EN 1998-3
(1)   This document is applicable to the assessment and retrofitting of buildings and bridges in seismic regions, namely as given in a) to c):
a)   to provide criteria for the assessment of the seismic performance of existing individual buildings and bridges;
b)   to describe the procedure to be followed in selecting necessary corrective measures;
c)   to set forth criteria for the design of retrofitting measures (i.e. design, structural analysis including intervention measures, final dimensioning of structural parts and their connections to existing structural members).
NOTE 1   For the purposes of this document, retrofitting covers both the seismic upgrading (e.g. strengthening or adding a passive system) of undamaged structures and the repair and possible upgrading of earthquake-damaged structures.
NOTE 2   Only the most common retrofit techniques are covered in this document. This does not exclude the use of other techniques, which can be developed in each country, based on the strengthening principles of this document.
NOTE 3   Annex D gives flowcharts for the application of this document.
(2)   Unless specifically stated, EN 1998-1-1 and EN 1998-5 apply.
(3)   Reflecting the performance requirements of EN 1998-1-1:2024, 4.1, this document covers the seismic assessment and retrofitting of buildings and bridges made of the more commonly used structural materials: concrete, steel and composite, timber and masonry.
NOTE   Annexes B and C contain additional guidance related to the assessment of timber and masonry structures, respectively, and to their retrofitting when necessary.
(4)   This document is intended for the assessment of individual structures, to decide on the need for structural intervention and to design the retrofitting measures that may be necessary. It is not intended for the vulnerability assessment of populations or groups of structures in seismic risk evaluations for various purposes (e.g. for determining insurance risk, for setting risk mitigation priorities, etc.).
(5)   This document provides (in its material-specific Clauses 8 to 11) criteria for the verification of the more common retrofitting techniques currently in use.
(6)   This document gives specific rules for the assessment and retrofitting relevant to existing buildings and bridges of consequence classes CC1, CC2 and CC3, as defined in EN 1990:2023, 4.3.
(7)   Although the provisions of this document are applicable to all common categories of buildings and bridges, the seismic assessment and retrofitting of monuments and heritage structures often requires different types of provisions and approaches, depending on the nature of the monuments and heritage structures.
1.2   Assumptions
(1)   The assumptions of EN 1998-1-1 apply to this document.
(2)   The provisions of this document assume that the data collection and tests are performed by experienced personnel and that the engineer responsible for the assessment, the possible design of the retrofitting and the execution of work has appropriate experience of the type of structures being upgraded or repaired.
(3)   It is assumed that inspection procedures, checklists and other data-collection procedures will be documented and filed and referred to in the assessment/design documents.

This document specifies the determination of Cr(VI) in solid waste material and soil by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.
NOTE       In case of reducing or oxidising waste matrix no valid Cr(VI) content can be reported.

1.1   Scope of EN 1995-1-2
(1) This document deals with the design of timber structures for the accidental situation of fire exposure and it is intended to be used in conjunction with EN 1995-1-1 and EN 1991-1-2.
This document only identifies differences from, or supplements to, normal temperature design.
(2) This document applies to timber structures required to fulfil a loadbearing function, separating function or both.
(3) This document gives principles and application rules for the design of structures for specified requirements in respect of the aforementioned functions and the levels of performance.
(4) This document applies to structures, or parts of structures, that are within the scope of EN 1995-1-1 and are designed accordingly.
(5) The methods given in this document are applicable to all products covered by European technical product specifications made reference to in this document.
1.2   Assumptions
(1) In addition to the general assumptions of EN 1990, the following assumptions apply:
-   the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation;
-   any fire protection measure taken into account in the design will be adequately maintained.

This document specifies the methods for determination of the diameter and length of pellets. Concerning the pellet length, methods for the determination of fractions of specified lengths, such as pellets > 40 mm and particles < 10 mm and for determination of the average length are included.

This document specifies a method to evaluate the general thermal comfort of people in a space and the degree of discomfort (thermal dissatisfaction) of people exposed to moderate thermal environments. It defines the analytical determination and interpretation of thermal comfort using calculation of predicted mean vote (PMV) and predicted percentage of dissatisfied (PPD) and local thermal comfort criteria, giving the environmental conditions considered acceptable for general thermal comfort as well as those representing local discomfort.
It is applicable to healthy men and women exposed to indoor environments where thermal comfort is desirable, but where moderate deviations from thermal comfort occur, in the design of new environments or the assessment of existing ones.
Although developed specifically for the work environment, this document is applicable to other kinds of environment as well.

ISO 15363:2017 specifies the ring hydraulic pressure test for metallic tubes. It is generally applied to tubes with an outside diameter greater than 120 mm and outside diameter to thickness ratio of not less than 20.
The objective of this test is to ascertain the value of the hoop stress required to produce a specified total circumferential (hoop) strain.

This document specifies the requirements relating to:
Steel 33CrMoV12 (1.8522)
Air melted
Softened
Forging stock
a or D ≤ 300 mm
for aerospace applications.
NOTE   ASD-STAN designation: FE-PL1504.
Material number: 1.8522.

This document specifies test methods for metal casting sand moulds produced using additive manufacturing technologies, with mechanical and physical properties including, but not limited to, tensile strength, transverse strength, gas permeability and thermal expansion.

This document specifies a method for the determination of the adhesion and cohesion properties of sealants after cyclic exposure to heat and artificial light followed by a period of exposure to water at a defined temperature.

This document specifies methods for the calculation of the dry matter fraction of sludge, sludge products, treated biowaste, soil and waste for which the results of performed analysis are calculated to the dry matter basis. Depending on the nature and origin of the sample, the calculation is based on a determination of the dry residue (method A) or a determination of the water content (methods A and B). It applies to samples containing more than 1 % (mass fraction) of dry residue or more than 1 % (mass fraction) of water.
Method A applies to sludge, sludge products, treated biowaste, soil and solid waste. Method B applies to liquid waste and to samples which are suspected or known to contain volatiles except for water.

This document specifies the requirements relating to:
Steel X3CrNiMoAl13-8-2 (1.4534)
Vacuum induction melted and consumable electrode remelted
Softened
Forging stocks
a or D ≤ 300 mm
for aerospace applications.
NOTE   ASD-STAN designation: FE-PM1503
Material number: 1.4534

This document specifies a definition for the different weight information for the weight reporting during the development and the certification phase. Further it is a baseline for a seat weight determination to get comparable seat weights for seat brochures, marketing reasons and the eco efficiency index.

This document specifies the characteristics of reverse-taper grooved pins with one quarter-length progressive grooves on both sides (with closed ends), in steel and stainless steel, and with nominal diameters 2 mm to 25 mm.
These grooved pins are designed to fulfil the main following functions:
—     relative rotation of the assembled parts,
—     locking of two (or more) parts
with an easy installation (due to its symmetrical shape) and a medium level of pull-out resistance (due to the elastic fit behaviour of the pin).
The general requirements (including functional principles for grooved pins and assembly) are specified in ISO 13669.

This document specifies requirements and test methods for total digestible fluoride content and a minimum soluble fluoride release potential in dental varnishes containing fluoride, intended for use in the oral cavity directly on the outer surfaces of teeth and fillings. This also specifies packaging and labelling requirements, including the instructions for use. This document covers fluoride varnishes to be applied by dental health care workers.
This document does not apply to fast acting topical fluoride products such as fluoride oral rinses.

This document specifies requirements for the specification and qualification of brazing procedures for brazing of metallic materials.
This document specifies requirements for brazing of the test piece, testing of the test specimen, essential variables and their range of qualification, acceptance criteria, brazing procedure qualification record (BPQR) and brazing procedure specification (BPS).
This document gives general provisions on quality requirements for brazing (see Annex A).
This document does not cover testing of residual stresses, corrosion resistance and impact properties.
This document applies to the following brazing processes according to ISO 857-2 and ISO 4063:2009 with local and global heating:
—    911 Infrared brazing;
—    912 Flame brazing, torch brazing;
—    913 Laser beam brazing;
—    914 Electron beam brazing;
—    916 Induction brazing;
—    918 Resistance brazing;
—    919 Diffusion brazing;
—    921 Furnace brazing;
—    922 Vacuum brazing;
—    923 Dip-bath brazing;
—    924 Salt-bath brazing;
—    925 Flux bath brazing;
—    926 Immersion brazing;
—    972 Arc weld brazing.
The principles of this document can be applied to other brazing processes and brazing of materials not listed.

This document specifies the requirements relating to:
Steel X15CrNi17-3 (1.4057)
Air melted
Softened
Forging stock
a or D ≤ 300 mm
for aerospace applications.
NOTE   ASD-STAN designation: FE-PM3901
Material number: 1.4057

This document provides guidance on characterizing the modifications of river hydromorphological features described in EN 14614:2020. Both standards focus more on morphology than on hydrology and continuity, and include a consideration of sediment and vegetation. This document will enable consistent comparisons of hydromorphological forms and processes between rivers within a country and between different countries in Europe, providing guidance for broad-based characterization across a wide spectrum of hydromorphological modification of river channels, banks, riparian zones and floodplains. Although of lesser focus, it considers the indirect effects of catchment-wide modifications to these river and floodplain environments. Its primary aim is to assess ‘departure from naturalness’ as a result of historical and modern human pressures on river hydromorphology, and it suggests suitable sources of information (see EN 14614:2020, Table A.1) which may contribute to characterizing the modification of hydromorphological properties. In doing so, it does not replace methods that have been developed for local assessment and reporting.
Decisions on river management for individual reaches or catchments require expert local knowledge and vary according to river type.

This document specifies the requirements for protective gloves to protect the hairdressers especially from the risk associated with micro-organisms and dangerous chemicals and defines terms to be used.

This document applies to gangways for passenger vessels for inland navigation. It specifies the type, main dimensions and test conditions that can be observed for safety reasons.
NOTE   A gangway serves as walkway between the passenger vessel and the shore.

This document specifies the requirements relating to:
Steel X2NiCoMo18-8-5 (1.6359)
Vacuum induction melted and vacuum arc remelted
Solution treated and precipitation treated
Sheets and strips
a ≤ 6 mm
1 750 MPa ≤ Rm ≤ 2 000 MPa
for aerospace applications.
W.nr: 1.6359
ASD-STAN designation: FE-PM2701

This document is concerned with the assessment of fish survival in pumping stations and hydropower plants, defined as the fraction of fish that passes an installation without significant injury. It does not concern indirect consequences of such installations, usually included in the notions ‘fish safety’ or ‘fish-friendliness’, like avoidance of fish affecting migration, behavioural changes, injury during attempted upstream passage, temporary stunning of fish resulting in potential predation, or depleted oxygen levels.
This document applies to pumps and turbines in pumping stations and hydropower plants that operate in or between bodies of surface water, in rivers, in streams or estuaries containing resident and/or migratory fish stocks. Installations include centrifugal pumps (radial type, mixed-flow type, axial type), Archimedes screws, and water turbines (Francis type, Kaplan type, Bulb type, Straflo type, etc.).
The following methods to assess fish survival are described:
—   Survival tests involving the paired release of live fish, introduced in batches of test and control fish upstream and downstream of an installation, and the subsequent recapture in full-flow collection nets. The method is applicable to survival tests in the field and in a laboratory environment. (Clause 6);
—   A validated model-based computational method consisting of a blade encounter model and correlations that quantify the biological response to blade strike (Clause 7).
The computational method can be used to scale results from laboratory fish survival tests to full-scale installations operating under different conditions (Clause 8).
The survival tests and computational method can also be applied to open-water turbines, with the caveats mentioned in Annex C.
The results of a survival test or a computed estimation can be compared with a presumed maximum sustainable mortality rate for a given fish population at the site of a pumping station or hydropower plant. However, this document does not define these maximum rates allowing to label a machine as “fish-friendly”, nor does it describe a method for determining such a maximum.
This document offers an integrated method to assess fish survival in pumping stations and hydropower plants by fish survival tests and model-based calculations. It allows (non-)government environmental agencies to evaluate the impact on resident and migratory fish stocks in a uniform manner. Thus the document will help to support the preservation of fish populations and reverse the trend of declining migratory fish stocks. Pump and turbine manufacturers will benefit from the document as it sets uniform and clear criteria for fish survival assessment. Further, the physical model that underlies the computational method in the document, may serve as a tool for new product development. To academia and research institutions, this document represents the baseline of shared understanding. It will serve as an incentive for further research in an effort to fill the omissions and to improve on existing assessment methods.

This document specifies the requirements relating to:
Steel X15CrNi17-3 (1.4057)
Air melted
Hardened and tempered
Bars for machining
De ≤ 200 mm
900 MPa ≤ Rm ≤ 1 100 MPa
for aerospace applications.
NOTE   ASD-STAN designation: FE-PM3901
Material number: 1.4057

This document specifies the technical delivery conditions for welded tubes, of square and rectangular cross section, made from stainless steels, for mechanical and structural engineering and decorative use.

This European standard specifies gas quality characteristics, parameters and their limits, for gases classified as group H that are to be transmitted, injected into and from storages, distributed and utilized.
NOTE   For information on gas families and gas groups see EN 437.
This European standard does not cover gases conveyed on isolated networks.
For biomethane, additional requirements indicated in prEN 16723 1 apply.

This document specifies the determination of the ECO efficiency of passenger seats installed in large airplanes.
This document is only applicable to the weight aspects of ECO efficiency, but this document does not apply to other aspects of sustainability.

This document specifies the requirements relating to:
Steel X2NiCoMo18-8-5 (1.6359)
Vacuum induction melted and vacuum arc remelted
Solution treated and precipitation treated
Plates
6 mm < a ≤ 40 mm
1 750 MPa ≤ Rm ≤ 2 000 MPa
for aerospace applications.
W.nr: 1.6359
ASD-STAN designation: FE-PM2701

This document specifies an instrumental method for the routine determination of the specific electrical conductivity in an aqueous extract of soil, sludge, biowaste or waste. The determination is carried out to obtain an indication of the content of water-soluble electrolytes in a sample.
This document is applicable to all types of air-dried samples of soil, sludge, biowaste and waste.

This part of the EN 1366 series specifies a method of test and criteria for the evaluation (including field of direct application rules) of the ability of a penetration seal to maintain the fire resistance of a separating element at the position at which it has been penetrated by a service or services. Penetration seals used to seal gaps around chimneys, air ventilation systems, fire rated ventilation ducts, fire rated service ducts, shafts and smoke extraction ducts as well as combined penetration seals are excluded from this part of the EN 1366 series.
NOTE   EN 15882-5 [6] deals with penetration seals including ducts and dampers.
Supporting constructions are used in this part of the EN 1366 series to represent separating elements such as walls or floors. These simulate the interaction between the test specimen and the separating element into which the sealing system is to be installed in practice.
This part of the EN 1366 series is intended to be used in conjunction with EN 1363 1.
The purpose of a test described in this part of the EN 1366 series is to assess the integrity and insulation performance of the penetration seal, of the penetrating service or services and of the separating element in the surrounding area of the penetration seal.
No information can be implied by the test concerning the influence of the inclusion of such penetrations and penetration seals on the loadbearing capacity of the separating element.
It is assumed that in each case the lintel above a penetration seal in the wall is designed in hot and cold state in a way that it does not apply any additional vertical load on the penetration seal.
It is not the intention of this test to provide quantitative information on the rate of leakage of smoke and/or hot gases or on the transmission or generation of fumes. Such phenomena are only noted in the test report in describing the general behaviour of test specimens during the test.
Tests in accordance with this part of the EN 1366 series are not intended to supply any information on the ability of the penetration seal to withstand stress caused by movements or displacements of the penetrating services.
The risk of spread of fire downwards caused by burning material, which drips e.g. through a pipe downwards to floors below, is at present excluded from this document.
Tests in accordance with this part of the EN 1366 series do not address any risks associated with leakage of dangerous liquids or gases caused by failure of pipes in case of fire.
Tests in accordance with this part of the EN 1366 series of pipe penetration seals for pipes of pneumatic dispatch systems, pressurized air systems, etc. simulate a situation where the systems are shut off in case of fire.
Explanatory notes to this test method are given in Annex H.
All values given without tolerances in this document are nominal ones unless otherwise specified.
All pipe diameters are outside diameters unless otherwise specified.

This document specifies requirements for electrically heated steam boilers manufactured from stainless steel specifically dedicated for generating steam for sterilizers and disinfectors.
This document covers only steam boilers that are heated by immersion heaters and which have a maximum allowable pressure (PS) of not greater than 6 bar, a maximum volume (V) of 1 000 litres and a product of PS ∙ V not greater than 3 000 bar ∙ l.

This document gives guidelines for the restoration of rivers, including their channels, riparian zones and floodplains. The word ‘river’ is used as a generic term to describe permanently flowing and intermittent watercourses of all sizes, with the exception of artificial water bodies such as canals. Some aspects of landscape restoration beyond the boundaries of what are often considered typical river processes are also considered.
A clear framework of guiding principles to help inform the planning and implementation of river restoration work is provided. These principles are applicable to individuals and organizations wishing to restore rivers, and stress the importance of monitoring and appraisal. This document makes reference to existing techniques and guidance, where these are appropriate and within the scope of this document.
This document gives guidelines on:
-   the core principles of restoration;
-   aims and overall outcomes of river restoration;
-   the spectrum of typical approaches to river restoration with a focus on those that are nature-based and restore both physical and ecological aspects;
-   identifying opportunities for restoration and possible constraints, with a focus on physical and natural rather than socio-economic aspects;
-   different scales of restoration and how restoration works across different catchments and landscapes;
-   the importance of monitoring and appraising restoration work across the range of approaches and scales.

This document provides procedures for monitoring the dose to the skin, the extremities, and the lens of the eye. It gives guidance on how to decide if such dosemeters are needed and to ensure that individual monitoring is appropriate to the nature of the exposure, taking practical considerations into account.
This document specifies procedures for individual monitoring of radiation exposure of the skin of the body, extremities (skin of the hands, fingers, wrists, forearms including elbow, lower leg including patella, feet and ankles), and lens of the eye in planned exposure situations. It covers practices which involve a risk of exposure to photons in the range of 8 keV to 10 MeV, electrons and positrons in the range of 0,07 MeV to 1,2 MeV mean beta energies being equivalent to 0,22 MeV and 3,6 MeV beta maximum energy - in accordance to the ISO 6980 series, and neutrons in the range of thermal to 20 MeV.
This document gives guidance for the design of a monitoring programme to ensure compliance with legal individual dose limits. It refers to the appropriate operational dose quantities, and it gives guidance on the type and frequency of individual monitoring and the type and positioning of the dosemeter. Finally, different approaches to assess and analyse skin, extremity, and lens of the eye doses are given.
It is not in the scope of this document to consider exposure due to alpha radiation fields.
NOTE 1        The requirements for the monitoring of the occupational exposure may be given in national regulations.
NOTE 2        Dose to the lens of the eye due to intake of tritium is not in the scope of this document. Moreover, the situation of the workers that work in contaminated atmosphere and can have alpha and/or radon eye lens dose is also not in the scope.

This document specifies general constructive and functional requirements and their test methods for granule applicator with regard to minimizing the potential risk of environmental contamination during use.
This document deals with all the significant environmental hazards related to the granule applicators.
This document does not deal with safety requirements for protection of the operator only.
NOTE   General safety requirements are covered by EN ISO 4254-1:2015 and EN ISO 4254-1:2015/A1:2021.
This document is not applicable to granule applicators manufactured before the date of its publication.

This document specifies requirements for the measurement of preheating temperature, interpass temperature and preheat maintenance temperature for fusion welding. This document can also be applied as appropriate in the case of other welding processes. This document does not apply to the measurement of post weld heat treatment temperatures.

This document defines terms for the crime prevention through building design, urban planning and city maintenance. For some specific terms used in the other parts of the EN 14383-series, it provides equivalent terms in three languages, as well as definitions.
This document uses the crime type definitions of the ICCS [5] (including the coding in numbers).
In a national context national definitions of crime types may be preferred.

The EN 1434 series of standards provide technical principles and practical advice in selecting, installing and commissioning of thermal energy meters. However, because a standard cannot cover all areas completely, this document assists users of thermal energy meters.

This document specifies the CM method for determining the moisture content of cementitious screed, calcium sulphate screed and magnesite screed made according to EN 13813.

This document specifies control applications and function blocks focusing on, but not limited to, lighting, solar protection and heating, ventilation and air conditioning (HVAC) applications.
It describes how energy performance, comfort, and operational requirements of buildings are translated into functional specifications for integrated plant and room control.

This document specifies a method for determining the dimensional stability (i.e. the shrinkage and swelling) of cementitious screed, calcium sulphate screed, magnesite screed and synthetic resin screed materials made in accordance with EN 13892-1.

This document defines terms used in conjunction with, and the general principles of, test methods for determining the laser-induced damage threshold and for the assurance of optical laser components subjected to laser radiation.

This document specifies methods for characterizing the chemical properties of powders or liquid dispersions containing graphene-related two-dimensional material (GR2M), using a set of suitable measurement techniques.
This document covers the determination of elemental composition, oxygen to carbon ratio, trace metal impurities, weight percentage of chemical species and functional groups present, by use of the following techniques:
— X-ray photoelectron spectroscopy (XPS);
— thermogravimetric analysis (TGA);
— inductively coupled plasma mass spectrometry (ICP-MS);
—Fourier-transform infrared spectroscopy (FTIR).
This document covers sample preparation, protocols and data analysis for the different techniques.

The purpose of this document is to specify requirements for marking, identification, leaktightness, electrical and operational safety and mechanical resistance for sanitary tapware with opening and closing controlled electronically.
The conditions of use for the supply system type are specified in Table 2:
[Table 2]
Annex B lists possible consequences of using a product outside its recommended operating range.
[Figure 1]
[Figure 2]

This document specifies the design, safety and operation characteristics of gaseous hydrogen land vehicle (GHLV) refuelling connectors.
GHLV refuelling connectors consist of the following components, as applicable:
—     receptacle and protective cap (mounted on vehicle);
—     nozzle;
—     communication hardware.
This document is applicable to refuelling connectors which have nominal working pressures or hydrogen service levels up to 70 MPa and maximum flow rates up to 120 g/s.
This document is not applicable to refuelling connectors dispensing blends of hydrogen with natural gas.