CEN - European Committee for Standardization

This document specifies a method for the measurement of focal spot sizes within the range of 5 µm to 300 µm of X-ray systems up to and including 225 kV tube voltage. This determination is based on the evaluation of an image with a dedicated focal spot that has been radiographically recorded using an edge and evaluated with a digital method.
The imaging quality and the resolution of X-ray images depend highly on the characteristics of the effective focal spot, in particular its size and the two-dimensional intensity distribution as seen from the detector plane.
For the characterization of commercial X-ray tube types (i.e. for advertising or trade), the nominal values of Annex A are preferred.
NOTE            The same procedure can be used at higher kilovoltages by agreement but the accuracy of the measurement can be poorer.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 017, type A, crimp, class P, used in elements of connection (relay bases) according to EN 3155 002.
It is used together with EN 3155 001.
The associated male contacts are specified in the standards of relays associated to the relay bases listed in EN 3155 002.

This document specifies the required characteristics, tests and tooling applicable to electrical contacts, male 044, type A, double crimping, class T, used in elements of connection according to EN 3155 002.
It is used together with EN 3155 001.
The associated female contacts are specified in EN 3155 045.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 015, type A, crimp, class S, used in elements of connection specified in EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are specified in EN 3155-014.

This document specifies the required characteristics, tests and tooling applicable to female electrical quadrax contacts, shielded, size 8, type E characteristic impedance 100 Ω, crimp, class R, used in elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are specified in EN 3155-074.

This document specifies requirements for two types, seven classes and three grades of wire- or textile-reinforced dredging hoses with nominal sizes ranging from 100 to 1 300. Such hoses are suitable for the delivery or suction of seawater or freshwater mixed with silt, sand, coral and small stones with a specific gravity in the range from 1,0 to 2,3 at ambient temperature ranging from -10 °C to +40 °C or for low-temperature hoses (designated -LT) ranging from -20 °C to +40 °C.
This document covers two types of hose, as follows:
type 1: floating type, for delivery only, which includes flotation material to give the hose buoyancy;
type 2: submarine type for delivery and suction.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 071, type A, crimp, class S used in elements of connection according to EN 3155 002.
It is intended to be used together with EN 3155 001.
The associated male contacts are specified in EN 3155 008 and EN 3155 070.

This document specifies the characteristics of silver-plated Bolts normal Hexagon Head with relieved shank and long thread, in heat resisting steel FE-PA92HT (A286), tensile strength class 1 100 MPa at room temperature. The maximum test temperature of the material is 650 °C.

This document specifies two methods for the determination of the chlorine content of homopolymers and copolymers of vinyl chloride, free from plasticizers or additives, namely:
method A (combustion in a bomb);
method B (combustion in a flask).

This document specifies both a procedure for preliminary examination of a single sample as received for testing, and a procedure for preparing a test sample by blending and reduction of a series of samples representative of a consignment or a bulk delivery of fluid fertilizer.
NOTE            This document complements the corresponding standard for solid fertilizers (ISO 14820-2).

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 045, type A, double crimping, class T, used in elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are specified in EN 3155-044.
Double crimping contact has a barrel which is designed to crimp conductor and jacket of cable in two locations, one on the conductor and the other on the jacket. This way it protects the conductor from mechanical strengths.

This document specifies the dimensions and construction of, and requirements for, four types of hose and hose assembly for use in all operations associated with the ground fuelling and defuelling of aircraft.
All four types are designed for:
use with petroleum fuels having an aromatic-hydrocarbon content not exceeding 30 % by volume;
operation within the temperature range of −30 °C to +65 °C and such that they will be undamaged by climatic conditions of −40 °C to +70 °C when stored in static conditions. For LT hose, the temperature range of −40 °C to +65 °C and such that they will be undamaged by climatic conditions of −48 °C to +70 °C when stored in static conditions;
operation at up to 2,0 MPa (20 bar) maximum working pressure, including surges of pressure which the hose can be subjected to in service.

This document specifies the process of decision-making, planning, implementing and documenting the conservation of tangible cultural heritage. It applies to material expressions of tangible cultural heritage such as individual objects, collections, the built environment, historic sites, archaeological sites and cultural landscapes.
This document concerns the documentation gathered during a conservation process and focuses on concepts to support the sector in working towards interoperability, whilst not specifying methods, systems or conventions.
NOTE   This document does not cover how to identify cultural heritage nor who or what competences are required to undertake decisions or other parts of the process.

This document specifies the required characteristics, tests and tooling applicable to male electrical Quadrax contacts, shielded, size 8, type E characteristic impedance 100 Ω, crimp, classes P, R and S, used in elements of connection according to EN 3155 002.
It is used together with EN 3155 001.
The associated female contacts are specified in EN 3155 075.

1.1        General
This document specifies methods for determining the sound power level of a noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free field near one or more reflecting planes. The sound power level produced by the noise source, in frequency bands or with A-weighting applied, is calculated using those measurements.
NOTE   Differently shaped measurement surfaces can yield differing estimates of the sound power level of a given noise source which are accounted for in the uncertainty associated with this test method. An appropriately drafted noise test code (see ISO 12001) gives detailed information on the selection of the surface.
1.2        Types of noise and noise sources
The methods specified in this document are suitable for all types of noise (steady, non-steady, and fluctuating) as defined in ISO 12001, except for short duration, impulsive events.
This document is applicable to all types and sizes of noise source (e.g. stationary or slowly moving component or sub-assembly), provided that the conditions for the measurements can be met.
NOTE   It is possible that the conditions for measurements given in this document are impracticable for very tall or very long sources such as chimneys, ducts, conveyors and multi-source industrial plants. A noise test code for the determination of noise emission of specific sources can provide alternative methods in such cases.
1.3        Test environment
The test environments that are applicable for measurements made in accordance with this document can be located indoors or outdoors, with one or more sound-reflecting planes present on or near which the noise source under test is mounted. The ideal environment is a completely open space with no bounding or reflecting surfaces other than the reflecting plane(s), such as that provided by a qualified hemi-anechoic chamber, but procedures are given for applying corrections (within limits that are specified) in the case of environments that are less than ideal. Annex A or ISO 26101-2 specifies methods for determining the adequacy of the test environment and for determination of corrections to be applied to account for the effect of the test environment.
1.4        Measurement uncertainty
Information is given on the uncertainty of the sound power levels determined in accordance with this document, for measurements made in limited bands of frequency and with frequency A-weighting applied. Annex I specifies procedures for testing laboratories that can be used to reduce measurement uncertainty. The uncertainty conforms to ISO 12001, accuracy grade 2 (engineering grade). General information on measurement uncertainty is provided in this document and additional information can be found in ISO 5114-1[8].

This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 070, type A, crimp, class S, used in elements of connection according to EN 3155 002.
It is used together with EN 3155 001.
The associated female contacts are specified in EN 3155 003, EN 3155 009 and EN 3155 071.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 003, type A, crimp, class S used in elements of connection according to EN 3155 002.
It is used together with EN 3155 001.
The associated male contacts are specified in EN 3155 008.

This document contains definitions of terms related to intraocular lenses as well as definitions related to the methods used to evaluate these IOLs.
NOTE            The terms are listed in the alphabetical order of the English terms.

This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A.
NOTE 1        Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753.
NOTE 2        The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load shown by a specific marking (property class preceded by a zero). The loadability in the head is assumed to be 80 % of that in the thread for all sizes and all property classes; see Table 5.
NOTE 3        Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.

This document specifies requirements and provides recommendations for the design, equipment and operation of interpreting hubs for simultaneous interpreting. This document also ensures the usability and accessibility of interpreting hubs for all interpreters.
This document builds upon ISO 20109 and ISO 24019, which both contain requirements and recommendations regarding the equipment necessary for simultaneous interpreting.

This document gives guidelines for cleaning to a specified degree on cleanroom surfaces, surfaces of equipment in a cleanroom and surfaces of materials in a cleanroom. Under consideration are all surfaces (external or internal) that are of interest. It provides guidance on the assessment of cleaning methods for achieving the required surface cleanliness by particle concentration (SCP) and surface cleanliness by chemical concentration (SCC) levels and which techniques should be considered to achieve these specified levels.
The appropriateness of cleaning techniques will make reference to the cleanliness levels and associated test methods found in ISO 14644-9 and ISO 14644-10.
The document gives general guidance on the following:
expected surface cleanliness levels;
suitability of cleaning methods;
compatibility of surfaces with the cleaning technique;
assessment of cleaning appropriateness.
The following are excluded from this document:
classification of cleaning methods;
product produced within a cleanroom;
specific surface-related cleaning methods;
detailed description of cleaning mechanisms, methods and procedures of various cleaning methods;
detailed material characteristics;
description of damage mechanisms by cleaning processes and time-dependent effects;
references to interactive bonding forces between contaminants and surfaces or generation processes that are usually time-dependent and process-dependent;
other characteristics of particles such as electrostatic charge, ionic charges, etc.;
chemical reactions between molecular contaminants and surfaces;
microbiological aspects of surface cleanliness;
radioactive aspects of contamination;
health and safety considerations;
environmental aspects such as waste disposal, emissions, etc.;
selection and use of statistical methods.

This document specifies a methodology to assess the suitability of equipment (e.g. machinery, measuring equipment, process equipment, components and tools) for use in cleanrooms and associated controlled environments, with respect to airborne particle cleanliness as specified in ISO 14644-1. Particle sizes range from 0,1 µm to equal to or larger than 5 µm (given in ISO 14644-1).
NOTE            Where regulatory agencies impose supplementary guidelines or restrictions, appropriate adaptation of the assessment methodology can be required.
This document is not applicable to the following items:
assessment of suitability with respect to biocontamination;
testing for suitability of decontamination agents and techniques;
cleanability of equipment and materials;
requirements on design of equipment and selection of materials;
physical properties of materials (e.g. electrostatic, thermal properties);
optimizing performance of equipment for specific process applications;
selection and use of statistical methods for testing;
protocols and requirements for local safety regulations.

This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 008, type A, crimp, class S, used in elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated female contacts are specified in EN 3155-003 and EN 3155-009.

This document specifies the characteristics and technical requirements for protruding head tubular sleeves, in corrosion resisting steel, which can be plain or provided with a series of annular grooves.
Passivated sleeves are for use in aerospace assemblies whose maximum operating temperature does not exceed 650 °C. It is important that the operating temperatures for aluminium pigmented sleeves do not exceed 230 °C.

This document specifies a method for the analysis of pesticide residues in foods of animal origin with a low fat content, such as meat/muscle, egg or milk by LC-MS/MS. Because of the low material requirements for miniaturized processing and the few work steps, the process is particularly time and cost-saving with high reliability and effectiveness. The method has been collaboratively studied on a number of commodity/pesticide combinations. Precision data are summarized in Table B.1. Guidelines for calibration are outlined in CEN/TS 17061:2019.

This document specifies the minimum requirements for the materials, design, construction and workmanship, manufacturing processes, examinations and testing at time of manufacture for refillable, seamless, stainless steel gas cylinders with water capacities up to and including 150 l.
It is applicable to cylinders for compressed, liquefied and dissolved gases with a maximum actual tensile strength, Rma, of less than 1 100 MPa.
NOTE            If so desired, cylinders of water capacity between 150 l and 450 l can be manufactured to be in full conformance to this document.

This document is applicable for evaluating absorbent incontinence products for urine, faeces, or both for adults and children. It provides a context for the procedures described in other International Standards and for published testing procedures. General factors relating to incontinence products and their usage are also addressed.

This document specifies the grammar of symbols used in ISO 10360 series in order to identify metrological characteristics of coordinate measuring systems (CMSs) and their specifications.
This document does not provide the meaning of these symbols, neither of whole symbols nor of their components. These meanings are specified in the ISO 10360 documents introducing them.

This document specifies the labelling requirements for intraocular lenses (IOLs) and the information to be provided within or on the packaging.
NOTE            This document attempts to harmonize the recognized labelling requirements for IOLs throughout the world. However, there can be additional national requirements.

This document specifies a test method for the quantitative determination of ignition and combustion delays of middle distillate fuels intended for use in compression ignition engines. The method utilizes a constant volume combustion chamber with direct fuel injection into heated, compressed synthetic air. A dynamic pressure wave is produced from the combustion of the product under test. An equation is given to calculate the derived cetane number (DCN) from the ignition and combustion delays determined from the dynamic pressure curve.
This document is applicable to middle distillate fuels, fatty acid methyl esters (FAME) and blends of diesel fuels and FAME. The method is also applicable to middle distillate fuels of non-petroleum origin, oil-sands based fuels, blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives and low-sulphur diesel fuel oils. However, users applying this document especially to unconventional distillate fuels are warned that the relationship between derived cetane number and combustion behaviour in real engines is not yet fully understood.
This document covers the ignition delay range from 2,6 ms to 3,9 ms and combustion delay from 3,78 ms to 6,56 ms (62,78 DCN to 39,44 DCN).
NOTE   The combustion analyser can measure shorter or longer ignition and combustion delays, but precision is not known.
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 users of this document to take appropriate measures to ensure the safety and health of personnel prior to application of the document, and fulfil statutory and regulatory requirements for this purpose.

This document specifies requirements for transportable liquid oxygen systems that are common to both base units and portable units and requirements that are particular to base units.
Stationary liquid oxygen systems used for oxygen pipeline supply systems are excluded from this document.
NOTE 1        Throughout this document the term “units” is used where the requirement applies to both base units and portable units.
NOTE 2        ISO 18777 - 2 specifies those requirements particular to portable units.

Within the field of health informatics, the DICOM (digital imaging and communication in medicine) standard addresses the exchange of digital images, and information related to the production and management of those images, between both medical imaging equipment and systems concerned with the management and communication of that information, such as Picture Archiving anc Communication System (PACS), Hospital Information System (HIS) and Radiology Information System (RIS).
This document is equivalent to part 1 of DICOM. As such, it normatively describes the content of DICOM (Clause 6) and the requirements to make a claim of conformance (Clause 5).
The DICOM standard is applicable to diagnostic medical imaging as practiced in radiology, cardiology, pathology, dentistry, ophthalmology and related disciplines, and image-based therapies such as interventional radiology, radiotherapy and surgery. It is also applicable to a wide range of image and non-image related information exchanged in clinical, research, veterinary, and other medical environments.

This document defines the properties of load test dusts used for heating, ventilation and air conditioning (HVAC) air filters as well as air cleaning equipment in laboratories. Test dusts used for evaluation of efficiency performance are not included.

This document specifies the characteristics of 90° corner, reduced series, counterbored fixed anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round, in heat resisting steel, MoS2 lubricated.
Classification: 1 100 MPa  / 315 °C .

This document specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated.
Classification: 1 100 MPa1/235 °C2.

This document specifies the requirements and test methods applicable to factory applied cement mortar coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C.
Coatings according to this document are suitable for soils of all common corrosion loads and trenchless applications.
Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion protection properties of the cement mortar coating. These operations are normally covered in the laying instructions supplied by the manufacturers of pipes, clamps, house connection saddles, etc. and any relevant users' procedures. Such instructions are not part of this document.

This document specifies guidelines for periodic inspections of gas equipment for welding, cutting and allied processes placed downstream of the gas cylinder’s valve as shown in Figure 1 or, in the case of centralized distribution, downstream from the tapping point, since commissioning.
NOTE   In some cases, gas cylinders can be replaced by cylinder bundles. Acetylene cylinder bundle systems upstream of the tapping point are excluded.
This document applies to gas welding equipment intended for professional use which utilizes compressed gases up to 300 bar (30 MPa), acetylene, liquefied petroleum gas (LPG), methylacetylene-propadiene mixtures (MPS) and carbon dioxide (CO2) and related mixtures.
This document does not apply to automatic applications of gas welding, cutting and allied processes.

(1) This document applies to concrete for structures cast in situ, precast structures, and structural precast products for buildings and civil engineering structures.
(2) The concrete described by this document can be:
—   normal-weight, heavy-weight and lightweight;
—   mixed on site, ready-mixed or produced in a plant for precast concrete products;
—   compacted or self-compacting to retain no appreciable amount of entrapped air other than entrained air.
(3) This document specifies requirements for:
—   the constituents of concrete;
—   the properties of fresh and hardened concrete;
—   the limitations for concrete composition;
—   the specification of concrete;
—   the delivery of fresh concrete;
—   the production control procedures;
—   the assessment criteria for individual values.
(4) This document does not apply to:
—   aerated concrete;
—   foamed concrete;
—   concrete with density less than 800 kg/m3;
—   refractory concrete.
(5) This document does not cover health and safety requirements for the protection of workers during production and delivery of concrete.

This document defines the concepts and definitions and is the first part of a set of standards to define the framework for digital twins in the built environment. It includes the terms and definitions, the relation with building information modelling and addresses the lack of standards for the qualitative specification of a digital twin, which can include geometric, attributive, structural and infrastructural quality, as applicable.
This document is based on the experiences obtained in use cases [1] and documents from other technical committees, including ISO/IEC 30173.
This document can be used in the development of other standards and in support of communications among diverse, interested parties or stakeholders. This initiative aims to define an ecosystem of digital twins opening the opportunity to release even greater value, using data for the public good.

(1) This document specifies the scheme for the conformity assessment and assessment criteria for concrete.
(2) The document provides technical rules for assessment of the performance of the concrete and actions to be followed in the event of non-conformity of the product or negative assessment.
(3) This document gives provisions and guidance for certification of factory production control and of the concrete.

This document specifies the characteristics of the jam-nut mounted receptacles of the family of bayonet coupling circular connectors, intended for use in an operating temperature range of –65 °C to 175 °C or 200 °C continuous.
This document applies to models specified in Table 4.
For contacts, filler plugs and rear accessories associated with this receptacle, see EN 3646 002. For plugs and protective covers, see EN 3646 008 and EN 3646 009 respectively.

This document specifies principles and gives guidance for developing normative documents that contain:
specified requirements for the object of conformity assessment;
specific methods and procedures for an individual conformity assessment activity (e.g. test methods);
rules and methodology for conformity assessment (as part of conformity assessment schemes, including provisions for organizations that perform conformity assessment activities).
This document is intended for the following users:
standards developers;
regulatory authorities;
conformity assessment scheme owners;
industry associations and consortia;
conformity assessment bodies;
accreditation bodies;
purchasers;
consumers and non-governmental groups;
other interested parties, e.g. insurance organizations.

This document specifies requirements for the design and construction of climated rooms and any associated equipment for public use.
This document does not apply to electrotechnical aspects of climated rooms.

This document specifies the requirements and test methods for rigid or semi-rigid non-metallic ductwork which are used for ventilation and air conditioning in buildings and excludes flexible ducts and ductwork made from insulation duct board.
The specified test methods are under laboratory conditions and exclude on-site tests.

This document specifies the interface requirements for controlled emission toilet equipment on railway vehicles and the infrastructure, including catering area sink waste retention tanks. Vehicle and infrastructure specific requirements are also given.
The document includes fixed and portable infrastructure equipment used to empty retention tanks, but excludes equipment fitted to railway vehicles where no fixed connections are used between vehicle and infrastructure.

1.1   In Scope
From Clause 8 to Clause 15, the scope includes:
-   Management Information;
-   Product Design;
-   Change Management;
-   Documents;
-   Application of PDM-specific metadata (see EN 9300-21);
-   Definition of PDM-specific metadata for Archive Information Packages (AIP).
Common Meta Data archive package requirements defined in EN 9300-21.
A visual representation of the scope of this document can be seen in Figure 1. An overview of the various parts in the EN 9300-200 series is provided in Table 1.
[Figure 1 - Scope of EN 9300-210 As Designed]
[Table 1 - EN 9300 Part 200 series]
This document does not attempt to specify how to create an OAIS/LOTAR information package. Nor does it address common issues in the archive domain, such as: snapshot vs. incremental archival methods (which are determined as part of the implementation of an archive system), or package-to-package linkages (Meta Data WG) or how to identify metadata for an archival package (Meta Data WG). Integration of PDM metadata with other domain and common metadata will be in EN 9300-021.
The scope of EN 9300-210 is same as the EN 9300-001.
1.2   Out of scope
This document does not attempt to describe how to create an OAIS/LOTAR information package. Nor does it address common issues in the archive domain, such as: snapshot vs. incremental archival methods (which are determined as part of the implementation of an archive system), or package-to-package linkages (Meta Data WG) or how to identify metadata for an archival package (Meta Data WG). For integration of PDM metadata with other domain and common metadata, see EN 9300-21.

This document specifies test methods and requirements for the design of electrical devices, when under normal operating conditions, on small craft so that they can be operated without igniting a surrounding flammable gas atmosphere.
This document does not apply to ignition protection procedures for:
—     devices or components that can operate in hydrogen and air mixtures;
—     devices with dysfunctional issues;
—     mechanisms of ignition from external sources, such as static electricity, lightning or other factors not related to the equipment under test.

This document specifies a method to measure ice adhesion from artificial ice on test substrates by using a centrifuge. Basic ice types are defined and test parameters for the ice removal are described to achieve reproducibility of test results for ice adhesion measurements for rotor blade coatings. This document does not intend to provide fixed test parameter to account for the diversity of relevant icing scenarios in this field of application.
NOTE            In practice, ice adhesion can be determined by two different measurement principles, the centrifugal test (covered in this document) and the shear test, which differ in dynamic and quasistatic shear rates.
This test method can be used to test the adhesion of dynamic ice on the coating system of a wind turbine rotor blade under operation.

This document specifies a method using automated Randall extraction for the determination of the hexane extract (or light petroleum extract), called the “oil content”, of oilseeds used as industrial raw materials.
The procedure for sunflower seed is different from those for others seeds as it includes an additional moisture content determination after the seed has been ground to prepare the test sample.
If required, the pure seeds and the impurities can be analysed separately. In the case of groundnuts, the pure seeds, the total fines, the non-oleaginous impurities and the oleaginous impurities can be analysed separately.