Kemesta

Toimialayhteisö: Kemesta
Komitea: CEN/TC 260 (Fertilizers and liming materials)
Alkuperä: CEN
Määräpäivä: 2022-06-02
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This document specifies the description of the physical unit in organic, organo-mineral and inorganic fertilizers.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 2 (Mechanical behavior)
Alkuperä: ISO
Määräpäivä: 2022-06-14
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 136 (Furniture)
Alkuperä: ISO
Määräpäivä: 2022-06-15
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 2 (Mechanical behavior)
Alkuperä: ISO
Määräpäivä: 2022-06-15
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 31/SC 6 (Off-the-road tyres and rims)
Alkuperä: ISO
Määräpäivä: 2022-06-15
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This document specifies designations and dimensions for earth-mover tyres and gives the recommended rims primarily intended for earth-moving machinery as defined in ISO 6165. The ISO 4250 series consists of three parts which specify the technical elements relating to designation and dimensions of tyres and rims for earth-movers; it also gives load tables for these tyres.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 45/SC 3 (Raw materials (including latex) for use in the rubber industry)
Alkuperä: ISO
Määräpäivä: 2022-06-15
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This document specifies: It applies to those rubbers listed in Table 1 which are normally used in vulcanized form.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 13 (Composites and reinforcement fibres)
Alkuperä: ISO
Määräpäivä: 2022-06-15
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This document specifies a method for the determination of the average thickness, the thickness under load and the recovery after compression of chopped-strand and continuous-filament textile-glass mats.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 249 (Plastics)
Alkuperä: CEN
Määräpäivä: 2022-06-16
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ISO 179-1:2010 specifies a method for determining the Charpy impact strength of plastics under defined conditions. A number of different types of specimen and test configurations are defined. Different test parameters are specified according to the type of material, the type of test specimen and the type of notch.The method can be used to investigate the behaviour of specified types of specimen under the impact conditions defined and for estimating the brittleness or toughness of specimens within the limitations inherent in the test conditions. It can also be used for the determination of comparative data from similar types of material.The method has a greater range of applicability than that given in ISO 180 (Izod impact testing) and is more suitable for the testing of materials showing interlaminar shear fracture or of materials exhibiting surface effects due to environmental factors.The method is suitable for use with the following range of materials:rigid thermoplastic moulding and extrusion materials (including filled and reinforced compounds in addition to unfilled types) and rigid thermoplastics sheets;rigid thermosetting moulding materials (including filled and reinforced compounds) and rigid thermosetting sheets (including laminates);fibre-reinforced thermosetting and thermoplastic composites incorporating unidirectional or multi-directional reinforcements (such as mats, woven fabrics, woven rovings, chopped strands, combination and hybrid reinforcements, rovings and milled fibres) or incorporating sheets made from pre-impregnated materials (prepregs), including filled compounds;thermotropic liquid-crystal polymers.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 249 (Plastics)
Alkuperä: CEN
Määräpäivä: 2022-06-16
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1.1 This document specifies a method for determining the Izod impact strength of plastics under defined conditions. A number of different types of specimen and test configurations are defined. Different test parameters are specified according to the type of material, the type of test specimen and the type of notch.1.2 The method is used to investigate the behaviour of specified types of specimen under the impact conditions defined and for estimating the brittleness or toughness of specimens within the limitations inherent in the test conditions.1.3 The method is suitable for use with the following range of materials:— rigid thermoplastic moulding and extrusion materials, including filled and reinforced compounds in addition to unfilled types; rigid thermoplastics sheets;— rigid thermosetting moulding materials, including filled and reinforced compounds; rigid thermosetting sheets, including laminates;— fibre-reinforced thermosetting and thermoplastic composites incorporating unidirectional or non-unidirectional reinforcements such as mat, woven fabrics, woven rovings, chopped strands, combination and hybrid reinforcements, rovings and milled fibres and sheet made from pre-impregnated materials (prepregs);— thermotropic liquid-crystal polymers.1.4 The method is not normally suitable for use with rigid cellular materials and sandwich structures containing cellular material. Notched specimens are also not normally used for long-fibre-reinforced composites or thermotropic liquid-crystal polymers.1.5 The method is suited to the use of specimens which can be either moulded to the chosen dimensions, machined from the central portion of a standard multipurpose test specimen (see ISO 20753) or machined from finished or semi-finished products such as mouldings, laminates and extruded or cast sheet.1.6 The method specifies preferred dimensions for the test specimen. Tests which are carried out on specimens of different dimensions or with different notches, or specimens which are prepared under different conditions, may produce results which are not comparable. Other factors, such as the energy capacity of the apparatus, its impact velocity and the conditioning of the specimens can also influence the results. Consequently, when comparative data are required, these factors are to be carefully controlled and recorded.1.7 The method is not intended to be used as a source of data for design calculations. Information on the typical behaviour of a material can be obtained, however, by testing at different temperatures, by varying the notch radius and/or the thickness and by testing specimens prepared under different conditions.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2022-06-16
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ISO 2811-1:2016 specifies a method for determining the density of paints, varnishes and related products using a metal or Gay-Lussac pycnometer.The method is limited to materials of low or medium viscosity at the temperature of test. The Hubbard pycnometer (see ISO 3507) can be used for highly viscous materials.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 9 (General test methods for paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2022-06-17
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This document specifies a method for determining the density of coating powders by liquid displacement in a measuring cylinder. The method is based on a determination of the mass and the volume of a test portion. It can be used for all types of coating powders.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 9 (General test methods for paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2022-06-17
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This document specifies a method for determining the density of paints, varnishes and related products using a metal or Gay-Lussac pycnometer. The method is limited to materials of low or medium viscosity at the temperature of test. The Hubbard pycnometer (see ISO 3507) can be used for highly viscous materials.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 2 (Mechanical behavior)
Alkuperä: ISO
Määräpäivä: 2022-06-20
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This document specifies a test method for the determination of puncture impact properties of rigid plastics, in the form of flat specimens, using instruments for measuring force and deflection. It is applicable if a force-deflection or force-time diagram, recorded at nominally constant striker velocity, is necessary for detailed characterization of the impact behaviour. The test method is applicable to specimens with a thickness between 1 mm and 4 mm. The method is suitable for use with the following types of material: The method is also applicable to specimens which are either molded or machined from finished products, laminates and extruded or cast sheet. The test results are comparable only if the conditions of preparation of the specimens, their dimensions and surfaces as well as the test conditions are the same. In particular, results determined on specimens of different thickness cannot be compared with one another (see annex E). Comprehensive evaluation of the reaction to impact stress requires that determinations be made as a function of impact velocity and temperature for different material variables, such as crystallinity and moisture content. The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be taken from finished products (see above) for tests by this method. Test data developed by this method should not be used for design calculations. However, information on the typical behaviour of the material can be obtained by testing at different temperatures and impact velocities (see annex D) by varying the thickness (see annex E) and by testing specimens prepared under different conditions. It is not the purpose of this document to give an interpretation of the mechanism occurring on every particular point of the force-deflection diagram. These interpretations are a task for scientific research.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 5 (Physical-chemical properties)
Alkuperä: ISO
Määräpäivä: 2022-06-22
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This document specifies a method for the determination of the thermal effusivity. This document is applicable to materials with thermal effusivity in the approximate range 40 W·s1/2·m-2·K-1
Toimialayhteisö: Kemesta
Komitea: CEN/TC 249 (Plastics)
Alkuperä: CEN
Määräpäivä: 2022-06-23
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 238 (Solid biofuels)
Alkuperä: ISO
Määräpäivä: 2022-06-23
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This document determines the fuel quality classes and specifications of graded densified solid biofuels produced from thermally treated biomass for commercial and industrial use. This document covers pellets and briquettes produced from the following raw materials (see ISO 17225-1:2021, Table 1): Subcategories of the above stated raw materials are included. This document does not consider products, which are marketed as charcoal or as charcoal products. For these products, ISO 17225-1:2021, Table 14 shall apply.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 335 (Solid biofuels)
Alkuperä: CEN
Määräpäivä: 2022-06-23
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This document determines the fuel quality classes and specifications of graded densified solid biofuels produced from thermally treated biomass for commercial and industrial use. Thermal treatment includes processes such as torrefaction, steam explosion, hydrothermal carbonization and charring, all of which represent different exposure to heat, oxygen, steam or water. This document covers pellets and briquettes produced from the following raw materials (see ISO 17225-1, Table 1):— 1. Woody biomass;— 2. Herbaceous biomass;— 3. Fruit biomass;— 4. Aquatic biomass;— 5. Blends and mixtures.Subcategories of the above stated raw materials are also included.This document does not consider products, which are marketed as charcoal or as charcoal products. For these products, ISO 17225-1, Table 14 shall apply.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2022-06-23
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 14 (Environmental aspects)
Alkuperä: ISO
Määräpäivä: 2022-06-29
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This document specifies test methods for assessing important properties of mechanically recycled polypropylene [PP (REC)] and polyethylene [PE (REC)] in granular or pellet form or for use in conventional plastics processing techniques. General guidance has been provided for determining the characteristics of PP (REC) and PE (REC), which can be used at 100% or in a proportion with standard (virgin) material grades available for processing on machines such as injection moulding, blow moulding, types of extrusion techniques etc. It is intended to help plastics processors and end users who intend to use recyclates with agreement on product specifications, as applicable. Country specific health and food-safety and environment related regulations for use of plastics recyclates are not in the scope of the document. Mixture of recyclates of PP and PE is not in the scope of this document.