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This ISO standard defines the general principles for determining stress-strain curves for thermoplastics in a wide strain rate field, with a focus on data entry of material cards for finite element simulations in the event of transient loads (impact/crash). The procedure is to be used to investigate the strain rate dependent uniaxial tensile deformation behaviour of test specimens and to determine the tensile stress-strain relationship under noncyclic, highly dynamic conditions. The procedure is particularly suitable for use in the material group of injection-moulded thermoplastics, unfilled and filled, including short and long fiber reinforced thermoplastics with a fiber length of up to 10 mm. The proposed standard only describes tests in a standard atmosphere.

 

This standard shall be used as the basis for testing electrically powered air circulating fan heads and ceiling fans when air is used as the test gas. The scope is limited to air circulating fans with an input power greater than or equal to 125 W—except for ceiling fans that are larger than 1800 mm, which do not have a lower input power limit. The diameter of the fan being tested shall be limited by the minimum dimensions as shown in the applicable test figures. Exclusions: Only tests that fulfill all mandatory requirements of this standard may be designated as tests conducted in accordance with this standard.

 

This document specifies the requirements for materials, design and installation of the insulation of refrigerated liquefied gas (RLG) storage tank systems. RLG storage tank systems store liquefied gas with a low boiling point, i.e. below normal ambient temperature. The concept of storing such products in liquid form and in non-pressurized tanks therefore depends on the combination of latent heat of vaporization and thermal insulation. Consequently, thermal insulation for RLG storage tank systems is not an ancillary part of the containment system (as for most ambient atmospheric hydrocarbon tanks) but it is an essential component and the storage tank system cannot operate without a properly designed, installed and maintained insulation system. The main functions of the insulation in RLG storage tank systems are: - to maintain the boil off due to heat in-leak at or below the specified limits; - to limit the thermal loading of the outer tank components, so to prevent both their sudden damage and premature ageing (e.g. due to external condensation and ice formation); - to prevent damage by frost heave of the foundation/soil beneath the tank base slab (in combination with the slab heating system for tanks resting at grade); - to minimize condensation and icing on the outer surfaces of the tank. A wide range of insulation materials is available. However, the material properties differ greatly amongst the various generically different materials and also within the same generic group of materials. Therefore, within the scope of this document, only general guidance on selection of materials is given. NOTE For general guidance on selection of materials, see Annex A. This document deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed tank systems for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -196 °C. refrigerated, liquefied gases with operating temperatures between 0 °C and -196 °C.

 

This document specifies the characteristics and requirements for a piping system and its components, made from unplasticized polyamide (PA-U) intended to be used for thermoplastics piping systems in industrial applications above and below ground. This document is applicable to PA-U pipes, fittings, valves and their joints, and to joints with components of other plastics and non-plastic materials, depending on their suitability, intended to be used for the conveyance of liquid and gaseous fluids as well as solid matter in fluids for industrial applications such as the following: Characteristics and requirements which are applicable for PA-U are covered by the relevant clauses of this document. Those characteristics and requirements which are dependent on the material are given in the relevant normative Annex A.

 

This document describes the time of flight diffraction (TOFD) testing of polyethylene butt fusion (BF) joints, including pipe-to-pipe, pipe-to-fitting and fitting-to-fitting joints, used for the conveyance of fluids. This document provides a test to detect imperfections such as voids, inclusions, lack of fusions, misalignment and particulate contamination in the BF joints. The document only applies to polyethylene pipes and fittings without a barrier to ultrasonic waves. This document also provides requirements for procedure qualification and guidance for personnel qualifications, which are essential for applying this test technique. This document covers the equipment, the preparation and performance of the test, the indication assessment and the reporting for polyethylene BF joints. Acceptance criteria are not covered in this document.

 

This document specifies requirements and test methods for factory made thermally insulated bonded steel shut-off valve assemblies for hot water networks in accordance with EN 13941-1, comprising a steel valve, valve extension pipes, polyurethane (PUR) foam thermal insulation and a casing of polyethylene. This document applies to steel valve assemblies with an internal pressure of maximum 2,5 MPa. The principles of this document can be applied to thermal insulated bonded steel valve assemblies with internal pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure. The steel shut-off valve assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers.

 

This document specifies requirements and test methods for factory made thermally insulated bonded fitting assemblies for hot water networks in accordance with EN 13941-1, comprising a steel service pipe, in most cases a steel fitting, polyurethane (PUR) foam thermal insulation and a casing of polyethylene. The fitting assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document specifies the characteristics of the following fitting assemblies: - bends, T-pieces, and reducers. This document applies to fitting assemblies with a design pressure of at least 1,6 MPa.

 

This document specifies requirements and test methods for straight lengths of factory made thermally insulated bonded twin pipe assemblies for directly buried hot water networks in accordance with EN 13941-1, comprising two steel service pipes, polyurethane (PUR) foam thermal insulation and a casing of polyethylene. The twin pipe assembly can also include the following additional elements: Measuring wires, spacers and diffusion barriers.

 

This document specifies requirements for factory made thermally insulated bonded steel service valve assemblies for filling, draining, venting and operation purposes for directly buried hot and cold water networks in accordance with EN 13941-1, comprising a steel service valve, steel service pipe, polyurethane (PUR) foam thermal insulation and a casing of polyethylene (PE). This document applies of steel service valve assemblies with an internal pressure of maximum 2,5 MPa. The principles of this document can be applied to thermal insulated bonded steel service valve assemblies with internal pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure. The steel service valve assembly can also include the following additional elements: measuring wires, spacers, and diffusion barriers.

 

This document specifies requirements and test methods for fitting and steel valve assemblies of factory made thermally insulated bonded twin pipe assemblies for hot water networks in accordance with EN 13941-1, comprising two steel service pipes, in most cases steel fittings and/or steel valves, steel components, polyurethane (PUR) foam thermal insulation and one casing of polyethylene. NOTE Steel components can be e.g. fixing bars. The twin pipe assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document covers the following assemblies: - fittings: bends, T-pieces and reducers; - valves for main line. This document applies to fitting assemblies with an internal pressure of at least 1,6 MPa and steel valve assemblies with a maximum internal pressure of 2,5 MPa.

 

This document specifies a test method for PE valves to maintain tightness during and after being subjected to a force, applied as a bending moment to the operating mechanism. Valves according to these standards are intended for use in polyethylene (PE) piping systems for the transport of fluids. When specified in the product standard, this document can be applied to valves of material other than PE.

 

This document specifies a test method for the resistance to bending of a test piece, made of a valve assembled together with two pipes and placed between supports, when subjected to internal pressure. This document is applicable to valves with a polyethylene (PE) body for use with pipes having a nominal outside diameter from greater than 63 mm up to and including 400 mm and intended for the transport of fluids. When specified in the product standard, this document can be applied to valves of material different than PE.

 

This document defines terms used in the field of soil quality.

 

 

This document specifies requirements for sample containers intended for the storage of biological materials in biobanks. In addition to general requirements, this also includes special requirements depending on the storage conditions, the biological material and the intended use, as well as requirements for documentation and quality control. These requirements ensure a defined quality for the sample containers. This document specifies test criteria and test methods that enable proof of compliance with the requirements. This document is primarily aimed at manufacturers that produce sample containers for the storage of biological materials. Biobanks, submitters and users of biological sample material, and organizations that monitor or control the work of biobanks can also use this document.

 

This document specifies requirements for the biobanking of deep-sea biological materials including the collection, processing, transportation and storage of deep-sea biological materials. This document is applicable only to deep-sea biological materials that can be used for biomolecular processing, e.g., nucleic acids, proteins, and metabolites. This document is applicable to all organizations performing research and development on deep-sea biological material. This document does not apply to the collection of biological material intended for environmental impact assessment for sea floor mining.

 

This document specifies the test method used to determine the strength of the adhesive-bonded carbon fibre reinforced plastics (CFRP) to metal assemblies under combined loading conditions. The loading fixture, a standard specimen, and procedure for combined shear and normal load tests under plane stress conditions are provided. The test method is also applicable to bonded joints between metals and other composite materials, including glass fibre-reinforced plastics. This document does not cover specimen preparation of the adhesive joint.

 

This document specifies a laboratory test method for screening anti-fouling paints in a flow-through system using algae as the test organism. It is intended to be used in conjunction with ISO 21716-1, which specifies the general requirements. The purpose of the test is to determine the difference in the colour of algae on painted test panels compared with algae on inert non-toxic control panels under the test conditions. Examples of statistical analysis to determine if the difference in the colour of algae is statistically significant are given in Annex A.

 

This document provides principles and guidance for developing normative documents that contain: This document is intended for use by standards developers, industry associations and consortia, purchasers, regulatory authorities, consumers and non-government groups, accreditation bodies, conformity assessment bodies, conformity assessment scheme owners, and other interested parties, such as insurance organizations.