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This document describes an analytical method for the determination of uranium in samples from pure product materials such as U metal, UO2, UO3, uranyl nitrate hexahydrate, uranium hexafluoride and U3O8 from the nuclear fuel cycle. This procedure is sufficiently accurate and precise to be used for nuclear materials accountability. This method can be used directly for the analysis of most uranium and uranium oxide nuclear reactor fuels, either irradiated or un-irradiated, and of uranium nitrate product solutions. Fission products equivalent to up to 10 % burn-up of heavy atoms do not interfere, and other elements which could cause interference are not normally present in sufficient quantity to affect the result significantly. The method recommends that an aliquot of sample is weighed and that a mass titration is used, in order to obtain improved precision and accuracy. This does not preclude the use of alternative techniques which could give equivalent performance. The use of automatic device(s) in the performance of some critical steps of the method has some advantages, mainly in the case of routine analysis.

 

This document describes an analytical method for the determination of uranium in samples from pure product materials such as U metal, UO2, UO3, U3O8, uranyl nitrate hexahydrate and uranium hexafluoride from the nuclear fuel cycle. This procedure is sufficiently accurate and precise to be used for nuclear materials accountability. This method can be used directly for the analysis of most uranium and uranium oxide nuclear reactor fuels, either irradiated or un-irradiated, and of uranium nitrate product solutions. Fission products equivalent to up to 10 % burn-up of heavy atoms do not interfere, and other elements which could cause interference are not normally present in sufficient quantity to affect the result significantly. The method recommends that an aliquot of sample is weighed and that a mass titration is used, in order to obtain improved precision and accuracy. This does not preclude the use of alternative techniques which could give equivalent performance. The use of automatic device(s) in the performance of some critical steps of the method has some advantages, mainly in the case of routine analysis.

 

This document specifies requirements and test methods to ensure absolute sealing of compressed gaseous hydrogen piping for gaseous hydrogen fuel cell–powered unmanned aircraft systems (HFC UAS). It applies to all piping—from the hydrogen storage cylinder through to the fuel cell—such that no hydrogen leakage occurs under normal operation, transient conditions, or fault scenarios. Compliance with these requirements enables HFC UAS operators and regulatory authorities to demonstrate and certify the absence of any hydrogen gas leaks, thereby ensuring flight safety.

 

This document specifies the required performance of attachable hydrogen cylinders for HFC UAS with power pack hydrogen fuel cell systems. This document specifies the minimum safety, performance, and integrity requirements for attachable hydrogen cylinders, which are key components of hydrogen fuel cell powered unmanned aircraft systems (HFC UAS), to ensure safe flight and intended performance. It is applicable only to systems in which the hydrogen fuel cell power generation system is unitized as a power pack.

 

This document describes methods and requirements for proof of delivery replacing the physical signature, while being as secure and trustworthy as physical signatures. It applies to situations where the traditional, physical signature is required by the service to be provided and where this traditional physical signature is not required by regulation. It applies to parcels delivered to recipients by postal operators and Logistic Service Providers (LSP). This document aims to meet or exceed the level of confidence associated with traditional, physical signatures. The new proof of delivery process will ascertain that the item is delivered to an authorized recipient or receiver and also prove that the recipient accepted the delivery. This document includes only the delivery process (forward flow).

 

This document provides guidance and, where appropriate, defines procedures for variations of certain parameters and factors associated with the design of lightweight partition walls, which have been tested in accordance with EN 1364-1, and classified according to EN 13501-2. This document only applies to non-loadbearing lightweight partition walls which have been tested (= reference test) with a single steel framework, provided with a lining on both sides of the steel framework. The lightweight partition wall cavity can be insulated or not with a mineral wool. This document does not apply to any other types of non-loadbearing lightweight partition walls considered in EN 1364-1.

 

This document describes methods of specifying and evaluating the performances of electric vehicle charging robots. This document is not applicable to wireless charging systems for electric vehicles. This document is not intended for the verification or validation of safety requirements.

 

This document specifies machinery safety requirements. This document is applicable to thermal and catalytic cleaning systems with regenerative or recuperative preheating for exhaust gas loaded with flammable substances from surface treatment equipment. This document deals with all significant hazards, hazardous situations or hazardous events relevant to thermal and catalytic cleaning systems for exhaust gas from surface treatment equipment, when these are used as intended and under conditions of misuse which are reasonably foreseeable. See Annex A for significant hazards. The specific significant risks related to the use of this machinery with exhaust gases from sources other than surface treatment equipment (e.g. from chemical production, tank farms, cremation, wastewater treatment) are not dealt with in this document. Limits of thermal and catalytic cleaning systems for exhaust gas from surface treatment equipment are specified by the interfaces given in Figure 1. Figure 1 - Limits of the machinery This document is not applicable to - cleaning systems without preheating of input gas; - cleaning systems for input gas with a concentration of flammable substances higher than those specified in 4.8; - cleaning systems for input gas containing H2 or pyrolysis gases; - cleaning systems for input gas with a O2/N2 ratio higher than in air; - absorptive and adsorptive exhaust gas cleaning systems; - membrane separators; - UV exhaust gas cleaning systems; - filter systems; - plasma exhaust gas cleaning systems; - biological exhaust gas cleaning systems. This document is not applicable to the machinery or machinery components manufactured before the date of its publication.

 

 

This document specifies requirements and gives recommendations for the design, installation, water supplies and backflow prevention, commissioning, maintenance and testing of fixed residential fire sprinkler systems in buildings for residential occupancies. This document is intended for use by those concerned with purchasing, designing, installing, testing, inspecting, approving, operating and maintaining automatic residential sprinkler systems, in order that such equipment will function as intended throughout its life. This document identifies construction details of buildings which are the minimum necessary for satisfactory performance of residential sprinkler systems complying with this standard. This document applies to any addition, extension, repair or other modification to the residential sprinkler system. This document does not cover situations such as arson where fires of a malicious intent may be started in multiple locations simultaneously.

 

This document specifies safety requirements for rechargeable energy storage systems (RESS) of electrically propelled road vehicles for the protection of persons. This document specifies assessment methods for thermal propagation risk mitigation in case of a cell failure leading to an internal short circuit, including the collection of associated data. It also specifies a selection of different test methods for thermal propagation. The selected tests can be carried out at vehicle level or for RESS and RESS subsystem if appropriate. This document does not provide comprehensive safety information for the manufacturing, maintenance and repair personnel. NOTE 1 Requirements for motorcycles and mopeds are specified in ISO 13063 and ISO 18243. NOTE 2 Additional safety requirements can apply for RESS that can be recharged by means different from supplying electric energy (e.g. redox flow battery).

 

Web Content Accessibility Guidelines (WCAG) 2.2 defines how to make web content more accessible to people with disabilities. Accessibility involves a wide range of disabilities, including visual, auditory, physical, speech, cognitive, language, learning, and neurological disabilities. Although these guidelines cover a wide range of issues, they are not able to address the needs of people with all types, degrees, and combinations of disability. These guidelines also make web content more usable by older individuals with changing abilities due to aging and often improve usability for users in general. 

 

1.1 Scope of CEN/TS 1993-1-901 (1) This document provides rules for structural design of steel orthotropic bridge decks against fatigue using geometric stresses, employing the hot-spot stress method where possible. (2) This document only applies to materials which conform to EN 1993-1 (all parts), but it does not apply to stainless steels and weathering steels. (3) This document only applies to structures where execution conforms to EN 1090-2. NOTE Supplementary execution requirements are indicated in the detail category tables. (4) The fatigue resistances given in this document apply to orthotropic bridge decks operating under normal atmospheric conditions and with sufficient corrosion protection and regular maintenance. 1.2 Assumptions (1) Unless stated otherwise, EN 1990-1, EN 1991-2, EN 1993-1 (all parts) and EN 1993-2 apply. (2) The design methods given in this document are applicable if - the execution quality is as specified in EN 1090-2, and - the construction materials and products used are as specified in the relevant parts of EN 1993 (all parts), or in the relevant material and product specifications.

 

This test method defines test terms and specifies a standard method for evaluating the homogeneity of electrically conductive spread carbon fibre tow using eddy current measurement. The impedance in the width direction of the fibre is measured continuously, and the standard deviation of the measured impedance determines the homogeneity of the conductive material in fibre form.

 

This part of ISO 3377 specifies a method for determining the tear strength of leather using a single edge tear. The method is sometimes described as a trouser tear. It is applicable to all types of leather.

 

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 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 part of ISO 13164 specifies a test method for the determination of 222Rn activity concentration in a sample of water following its transfer from the aqueous phase to the gas phase by degassing and its detection. It gives recommendations for rapid measurements performed within less than 1 h. The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, range from 0,1 Bq·l-1 to several hundred thousand becquerels per litre for a 100 ml test sample. This test method is used successfully with drinking water samples. The laboratory is responsible for ensuring the validity of this test method for water samples of untested matrices. This test method can be applied on field sites or in the laboratory.

 

This part of ISO 13164 gives general guidelines for sampling, packaging, and transporting of all kinds of water samples, for the measurement of the activity concentration of 222Rn. The test methods fall into two categories: a) direct measurement of the water sample without any transfer of phase (see ISO 13164-2[7]); b) indirect measurement involving the transfer of the 222Rn from the aqueous phase to another phase (see ISO 13164-3[8] and 13164-4[9]). The test methods can be applied either in the laboratory or on-site. The laboratory is responsible for ensuring the suitability of the test method for the water samples tested.