Source for standards, engineering specifications, manuals and technical publications

Current scope:
This European Standard lays down harmonized identifiers for marketed liquid and gaseous fuels. The
requirements in this standard are to complement the informational needs of users regarding the
compatibility between the fuels and the vehicles that are placed on the market. The identifier is
intended to be visualized at dispensers and refuelling points, on vehicles, in motor vehicle dealerships
and in consumer manuals as described in this document.
Marketed fuels include for example petroleum-derived fuels, synthetic fuels, biofuels, natural gas,
LPG, hydrogen and biogas and blends of the aforementioned delivered to mobile applications.
NOTE For the purposes of this document, the terms “% (m/m)” and “% (V/V)” are used to represent
respectively the mass fraction, µ, and the volume fraction, φ.
Scope of the revision:
Inclusion of the new standard for small engine petrol (FprEN 17867).

This project describes test methods and automatic measuring  equipment for the determination of NOx(NO+NO2) CO, CO2 and O2 emissions in the flue gases including the sampling system and the calibration gases. the document should be introduced in the relevant gas appliances TC.

This document specifies safety requirements relevant to certain aspects of the design and construction of classified pools according to Clause 4. It is intended for those concerned with the design, construction, planning and operation of classified swimming pools. It provides guidance about the risks associated by identifying the design characteristics required for a safe environment.
The requirements of this document are applicable to all new classified pools and, as appropriate, to specific refurbishments of classified existing pools.
This document has limited application to classified pools which consist of segregated areas of rivers, lakes or the sea but this document should be followed where relevant.
National and/or local legislation may apply.
This document is not applicable to domestic swimming pools according to EN 16582 (all parts). Further definitions of domestic swimming pools and/or use are given in EN 16582.

The proposed document will specify a method for the determination of the sum of selected perfluoroalkyl and polyfluoroalkyl substances (PFAS) in drinking water using liquid chromatography mass spectrometry (LC MS/MS).
The method covers at least the substances needed for the calculation of the 'Sum of PFASs ' according to Annex III, part B, point 3 of the new European drinking water directive (draft). Currently the DWD comprises the perfluoralkyl acids C4 to C13 as well as the perfluoralkyl sulfonic acids C4 to C13.
Other matrices like groundwater and additional substances like HFPO-DA (GenX) and ADONA or perfluoralkansulfonamides (FASA) will be included if possible. The lower application range of the method can vary depending on the sensitivity of the equipment used and the matrix of the sample. For most compounds to which this document applies ≥0,2 ng/l as limit of quantification can be achieved. Actual levels can depend on the blank levels realized by individual laboratory.
The applicability of the method to further substances, not listed in the annex of the DWD, or to further types of water is not excluded, but is intended to be validated separately for each individual case.

EN 13611:2019, Clause 1 applies with the following modification and addition:
Modification:
The 1st paragraph of EN 13611:2019, Clause 1 is replaced by:
This document specifies the safety, design, construction, and performance requirements and testing for gas filters for burners and appliances burning one or more gaseous fuels.
This document is applicable to gas filters with declared maximum inlet pressures up to and including 600 kPa and of nominal connection sizes up to and including DN 250.
Addition:
This document is not applicable to:
-   gas filters that are connected directly to mains pipe-work or to a container that maintains a standard distribution pressure.
The 4th paragraph of EN 13611:2019, Clause 1 is removed.

This document specifies general safety requirements and test methods for equipment installed in swimming pools for public use as classified in EN 15288-1 and EN 15288-2.
Where specific standards exist, this general standard is not expected to be used alone.
Special care is expected to be taken in applying this general standard alone to equipment for which no product specific standard has yet been published.

The EN 4500 series specifies the rules for the drafting and presentation of metallic material standards for aerospace applications. This Part 001 specifies the "General Rules" framework valid for all parts.

The EN 4500 series specifies the rules for the drafting and presentation of metallic material standards for aerospace applications. This Part 005 specifies the "Specific rules for steels".

This document gives guidance on the characteristics and best practices of a professional farmer organization. This document is applicable to commercially oriented farmer organizations. It does not apply to purely socially oriented farmer organizations or individual farmers. It provides a common standard of professionalism for commercially oriented farmer organizations, which can serve as guidance to inform, harmonize, and complement existing and future organizational development and assessment processes. This document is applicable to large and small farmer organizations, without regard to the number of members, volume of business, output or capital investment, nor to the specific crop or product. It can also be applicable, when adapted, for very small or nascent organizations, for specific or differentiated products or for markets with special requirements. It does not address every capacity or aspect of professionalism that can be of importance to a specific customer or market, nor imply the need for uniformity in organizational type or structure.

Modification to EN 50522:2022

This document sets out a laboratory sequential procedure for the froth flotation testing of fine coal, e.g. coal having a particle size of less than 0,5 mm. The procedure provides a means of evaluating the flotation characteristics for coal (expressed as a yield/ash relationship) that can be expected from the froth flotation process. This document does not apply to pulp samples that cannot be dewatered without the use of heat or chemical additives. This document does not apply to procedures for the investigation of flotation kinetics. The test is not intended to provide plant design data. This document is intended to be read in conjunction with ISO 8858-1.

IEC 63412-1:2024 specifies quantities and parameters which it is essential to provide to the user of shear-wave elastography systems, many in the image headers. This document is applicable to medical-diagnostic, ultrasonic shear-wave elastography systems, exciting (internally or externally) shear waves and tracking their propagation within biological tissue.

This document specifies requirements for non-sterile, single-use graduated flow regulators used as subcomponents in sterilized infusion sets for single use to control the flow of intravenous infusion solutions with fluid contact under gravity feed conditions.

IEC 61280-2-13:2024 series defines a procedure for calculating the root-mean-square error vector magnitude of optical n-APSK signals from a set of measured symbols. It specifically defines the normalization of the reference states and a procedure for optimal scaling of the measured symbol states. The procedure described in this document applies to single-polarized optical signals as well as to conventional polarization-multiplexed signals with independently modulated polarization tributaries. In general, it is not advisable to apply these procedures without modification to signals, in which optical amplitude, phase, and polarization state are simultaneously modulated to encode the information data. This document does not specify any signal processing steps for extracting the symbols from the received optical signals, because these steps depend on the optical receiver and can vary with the type of the transmitted n-APSK signal. These and optional additional signal processing steps are defined in application-specific documents.

This document specifies the general procedure to be followed in determining the dynamic viscosity of unpigmented coating materials, such as paints, varnishes and related products, as well as binders at a shear rate range between 9 000 s−1 and 12 000 s−1. It describes an absolute viscosity measurement with cone-plate measuring geometry at high shear rates. The measured value gives information about the resistance offered by the material to brushing, spraying and roller coating during application. The method specified in this document is suitable for all paints and varnishes whether they are Newtonian in behaviour or not. For materials containing dispersions of large particles, the measuring geometry is expected to be adapted.

This document specifies water jet cleaning methods for the removal of the existing coatings and rust during surface preparation of steel surfaces before application of paints and related products. It provides information on the effectiveness of the individual methods and their fields of application. It also describes the equipment and the procedures to follow.

This document specifies a method for the identification of single fish and fish fillets to the level of genus or species. It allows the identification of a large number of commercially important fish species using DNA barcoding. This method was validated on raw fish. Laboratory experience indicates additional applicability to processed fish products (e.g. cold smoked, hot smoked, salted, frozen, cooked, fried and deep-fried samples). The described method is usually unsuitable for the analysis of highly processed foods (e.g. tins of fish with highly degraded DNA where the fragment lengths are not sufficient for amplification of the targets). Furthermore, it does not apply to complex fish products containing mixtures of two or more fish species. The identification of fish species is carried out by PCR amplification of either a segment of the mitochondrial cytochrome b gene (cytb) or the cytochrome c oxidase I gene (cox1, syn COI), or both, followed by sequencing of the PCR products and subsequent sequence comparison with entries in databases.