Toimialayhteisöt

 

 

 

 

This document specifies a field method for the assessment of the surface density of various water-soluble salts on steel surfaces, before and/or after surface preparation, by conductometric determination. The individual surface densities of the salt composition like chlorides, sulphates, sodium, etc, cannot be determined by this method. This method assesses only contaminants that forms an electrolyte (ions) when in contact with water. These represent the greater part of the contaminants.

 

This document describes a set of physiological parameters allowing the measurement of sublethal effects in higher plants exposed to soil pollutants and other stressors (e.g. drought, nutrient availability, heat stress). It is applicable to soils of unknown quality (e.g. from contaminated sites, amended soils or soils after remediation), either in situ or following laboratory exposure assays. This document specifies the methods for analysing variations in physiological responses and oxidative damage that can be indicative of stress symptoms in the leaves of higher plants, either monocotyledonous or dicotyledonous species.

 

This document describes a set of biochemical parameters allowing the measurement of sublethal effects in higher plants exposed to soil pollutants and other stressors (e.g. drought, nutrient availability, heat stress). This document is applicable to soils of unknown quality (e.g. from contaminated sites, amended soils or soils after remediation), following laboratory exposure assays. This document specifies methods for measuring antioxidant defence enzyme activities that indicate stress symptoms in the leaves of lettuce and higher plants, either monocotyledonous or dicotyledonous species.

 

This document specifies a method for the determination of extractable metals in leather using extraction with an acid artificial-perspiration solution and subsequent determination with inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS) or spectrometry of atomic fluorescence (SFA). This method determines extractable metals in leather; it is not compound-specific or specific to the oxidation state of the metals. This method is especially suitable for determining the extractable chromium in chromium-tanned leathers. The method is applicable for the determination of many extractable metals, including: Interlaboratory test results and the quantification limits possible with ICP-OES are given in Table A.1 and Table A.2 of Annex A.

 

This document specifies a method for the determination of gross alpha and gross beta activity concentration for alpha- and beta-emitting radionuclides using liquid scintillation counting (LSC). The method is applicable to all types of waters with a dry residue of less than 5 g/l and when no correction for colour quenching is necessary. Gross alpha and gross beta activity measurement is not intended to give an absolute determination of the activity concentration of all alpha- and beta-emitting radionuclides in a test sample, but is a screening analysis to ensure particular reference levels of specific alpha and beta emitters have not been exceeded. This type of determination is also known as gross alpha and beta index. Gross alpha and beta analysis is not expected to be as accurate nor as precise as specific radionuclide analysis after radiochemical separations. The method covers non-volatile radionuclides below 80 °C, since some gaseous or volatile radionuclides (e.g. radon and radioiodine) can be lost during the source preparation. The method is applicable to test samples of drinking water, rain water, surface and ground water as well as cooling water, industrial water, domestic and industrial waste water after proper sampling and test sample preparation (filtration when necessary and taking into account the amount of dissolved material in the water). The method described in this document is applicable in the event of an emergency situation, because the results can be obtained in less than 4 h by directly measuring water test samples without any treatment. It is the laboratory's responsibility to ensure the suitability of this test method for the water samples tested.

 

This document specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. The formulae in this document apply to all pressure angles. It also covers the concepts and parameters for involute cylindrical gear pairs with parallel or crossed axes, and a constant gear ratio. Gear and mating gear in these gear pairs have the same basic rack tooth profile.

 

This document specifies minimum requirements of performance characteristics for the detection and quantification of nucleic acid sequences (DNA or RNA) by PCR-based assays. The PCR-based assays specified in this document do not include culturing and nucleic acid extraction stages. NOTE ISO 22174:2024 [5], clause 13, states that this document specifies the performance characteristics for PCR-based methods. To differentiate from complete methods, which are evaluated according to validation standards such as the ISO 16140 series, the term "PCR-based assay" is used in this document. This document applies to the detection and/or quantification of nucleic acids of microorganisms (bacteria, yeasts, moulds, viruses and protozoan parasites) associated with: products intended for human consumption; products for feeding animals; environmental samples in the area of food and feed production and handling; samples from the primary production stage. This document, or parts of it, is also applicable to other fields of PCR diagnostics based on a case-by-case evaluation. This document does not apply to sequencing methods or isothermal amplification methods like loop mediated amplification (LAMP) or nucleic acid sequence-based amplification (NASBA).

 

This document gives guidance on a consistent approach to justify the claims associated with the use of plant biostimulants. This document is aimed primarily at manufacturers, laboratories, researchers, technical centres, and companies that intend to place plant biostimulants on the market, as well as notifying authorities, notified bodies, and market surveillance authorities. To be in compliance with this standard, it is important to also follow the recommendations and quality criteria described in the standard ISO 37700-1:2026on general principles to demonstrate plant biostimulant claims.

 

This document specifies the general principles for justifying the product claims for plant biostimulants. It is applicable to all claims and all types of application of plant biostimulants. General principles define all general parameters, requirements and quality criteria to be applied in order to assess trials conducted to validate the claim(s) associated with the use of a plant biostimulant. This document is aimed primarily at manufacturers, laboratories, researchers, technical centres and companies that intend to place plant biostimulants on the market, as well as notifying authorities, notified bodies, and market surveillance authorities.

 

This document gives guidance and requirements for the assessment of conformity of compounds, products, joints and assemblies in accordance with the applicable part(s) of EN 1555, intended to be included in the manufacturer’s quality plan as part of the quality management system and for the establishment of certification procedures. NOTE 1 A test matrix provides an overview of the testing scheme in Annex B, Table B.1. NOTE 2 If certification is involved, the certification bodies and inspection bodies operating in accordance with EN ISO/IEC 17065 [2] and EN ISO/IEC 17020 [4] are considered to be competent. Mechanical fittings according to ISO 17885 are not covered in this document. In conjunction with EN 1555-1, EN 1555-2, EN 1555-3, EN 1555-4 and EN 1555-5, this document is applicable to PE pipes, fittings, and valves, their joints and joints with components of PE and other materials intended to be used under the following conditions: a) a maximum operating pressure, MOP, up to and including 10 bar , at a design reference temperature of 20 °C; b) an operating temperature between -20 °C and 40 °C. For operating temperatures between 20 °C and 40 °C, derating coefficients are specified in EN 1555 5. The EN 1555 series covers a range of MOPs and gives requirements concerning colours. It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.

 

 

This document specifies the evaluation of natural language processing systems, in the sense of measuring the quality of a system’s results to assess its functional suitability. It provides a definition of evaluation methods for those systems, together with guidance on how to select, implement and interpret those evaluation methods. This document covers quantitative metrics as well as other evaluation methods. It includes requirements on the implementation of the described metrics, and further requirements on the technical resources involved in the evaluation process.

 

This document specifies the evaluation of natural language processing systems, in the sense of measuring the quality of a system’s results to assess its functional suitability. It provides a definition of evaluation methods for those systems, together with guidance on how to select, implement and interpret those evaluation methods. This document covers quantitative metrics as well as other evaluation methods. It includes requirements on the implementation of the described metrics, and further requirements on the technical resources involved in the evaluation process.

 

ISO 22118:2010 specifies minimum requirements of performance characteristics for the detection of nucleic acid sequences (DNA or RNA) by molecular methods. ISO 22118:2010 applies to the detection of food-borne pathogens in foodstuffs and isolates obtained from them using molecular detection methods based on the polymerase chain reaction (PCR). ISO 22118:2010 is also applicable, for example, to the detection of food-borne pathogens in environmental samples and in animal feeding stuffs.

 

This document specifies design, assembly, installation and commissioning requirements for pump sets for use in sprinkler systems conforming to EN 12845:2015+A1:2019. Where applicable, this document can also be used for pump sets for other water based fixed firefighting systems.

 

This document provides guidance for sectoral stakeholders and product manufacturers in generating ICT product-relevant information based on EN 18037. Sectoral stakeholders are supported in applying the risk and cybersecurity assessment methodology so that the information needs of product manufacturers are covered by the sectoral assessment report. Product manufacturers receive guidance in using methodology according to EN 18037 for own assumptions of their ICT product’s sector-specific risks and security requirements. This document uses a step-by-step approach for guiding sectoral stakeholders and product manufacturers through the assessment. For each step, the relevant information provided by EN 18037 is summarized or referenced and the enhancements or clarifications in support of the information needs of the ICT product manufacturers are pointed out. From the perspective of product manufacturers, the re-use of existing product-specific specifications and certification tools is of particular relevance. Therefore, this document provides guidance how the results of sectoral assessments according to EN 18037 can be connected with these specifications and tools.

 

ISO 17234-2:2011 is supplementary to ISO 17234-1 and describes a special procedure to detect the use of certain azo colorants in commodities, which can release 4-aminoazobenzene. The procedure also detects 4-aminoazobenzene (Solvent Yellow 1) which is already available as free amine in commodities without reducing pretreatment. Azo colorants that are able to form 4-aminoazobenzene generate, under the conditions of ISO 17234-1, the amines aniline and 1,4-phenylenediamine. The presence of these 4-aminoazobenzene colorants cannot be reliably ascertained without additional information (e.g. the chemical structure of the colorant used) or without a special procedure.