Kemesta

Toimialayhteisö: Kemesta
Komitea: CEN/TC 249 (Plastics)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 9 (Thermoplastic materials)
Alkuperä: ISO
Määräpäivä: 2018-02-26
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Toimialayhteisö: Kemesta
Komitea: CEN/TC 207 (Furniture)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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This document defines visual assessment procedures for the appearance of ready for use furniture surfaces with regard to surface defects and colour variations in a used condition.It is not applicable to constructive features or geometric dimensions, e.g. parallelism of edges.It is not applicable to textile and leather surfaces.It also applies to decorative wooden surfaces and visible frame finishes, for example on upholstered furniture.It applies to the incoming and outgoing goods inspections, as well as local assessments.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 12 (Preparation of steel substrates before application of paints and related products)
Alkuperä: ISO
Määräpäivä: 2018-02-26
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This part of ISO 8504 describes methods for hand-tool and power-tool cleaning of steel substrates before application of paints and related products. It applies both to new steelwork and to steel surfaces that have been coated previously and that show areas of breakdown requiring maintenance painting. It describes the equipment to be used and the procedure to be followed
Toimialayhteisö: Kemesta
Komitea: CEN/TC 137 (Assessment of workplace exposure to chemical and biological agents)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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This European Standard provides the methodology for measuring and characterizing the dustiness of a bulk material that contains or releases nano-objects or submicrometer particles. In addition, it specifies the environmental conditions, the sample handling procedure and the method of calculating and presenting the results. Guidance is given on the choice of method to be used.The methodology described in this European Standard enablesa) the quantification of dustiness in terms of health-related index mass fractions,b) the quantification of dustiness in terms of an index number and an emission rate, andc) the characterization of the aerosol from its particle size distribution and the morphology and chemical composition of its particles.NOTE 1 Currently, no number-based classification scheme in terms of particle number has been established for particle dustiness release. Eventually, when a large enough number of measurement data has been obtained, the intention is to revise this European Standard and to introduce a number-based classification scheme.This European Standard is applicable to all bulk materials, including powders, granules or pellets, containing or releasing nano-objects or submicrometer particles.NOTE 2 The vortex shaker method specified in part 5 of this European Standard has not yet been evaluated for pellets and granules.NOTE 3 The rotating drum and continuous drop methods have not yet been evaluated for nanofibres and nanoplates.This European Standard does not provide methods for assessing the release of particles during handling or mechanical reduction of machining (e.g. crushing, cutting, sanding, sawing) of solid nanomaterials (e.g. nanocomposites).
Toimialayhteisö: Kemesta
Komitea: CEN/TC 137 (Assessment of workplace exposure to chemical and biological agents)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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This European Standard provides the methodology for measuring the dustiness of bulk materials that contain or release nano-objects or submicrometer particles, under standard and reproducible conditions and specifies for that purpose the rotating drum method.In addition, this European Standard specifies the selection of instruments and devices and the procedures for calculating and presenting the results. It also gives guidelines on the evaluation and reporting of the data.The methodology described in this European Standard enablesa) the measurement of the respirable, thoracic and inhalable dustiness mass fractions,b) the measurement of the number-based dustiness index of respirable particles in the size range from about 10 nm to 1 000 nm,c) the measurement of the number-based emission rate of respirable particles in the size range from about 10 nm to 1 000 nm,d) the measurement of the number-based size distribution of the released aerosol in the size range from about 10 nm to 10 µm, ande) the collection of released airborne particles in the respirable fraction for subsequent observations and analysis by analytical electron microscopy.This European Standard is applicable to the testing of a wide range of bulk materials including powders, granules or pellets containing or releasing nano-objects or submicrometer particles in either unbound, bound uncoated and coated forms.NOTE 1 Currently no number-based classification scheme in terms of dustiness indices or emission rates have been established. Eventually, when a large number of measurement data has been obtained, the intention is to revise this European Standard and to introduce such a classification scheme, if applicable.NOTE 2 The method specified in this European Standard has not been investigated for the measurement of the dustiness of bulk materials containing nanofibres and nanoplates in terms of number-based dustiness indices or emission rates. However, there is no reason to believe that the number-based dustiness indices or emission rates could not be measured with the rotating drum using the set-up described in this European Standard.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 137 (Assessment of workplace exposure to chemical and biological agents)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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This European Standard provides the methodology for measuring the dustiness of bulk materials that contain or release nano-objects or submicrometer particles, under standard and reproducible conditions and specifies for that purpose the continuous drop method.In addition, this European Standard specifies the selection of instruments and devices and the procedures for calculating and presenting the results. It also gives guidelines on the evaluation and reporting of the data.The methodology described in this European Standard enablesa) the measurement of the respirable and inhalable dustiness mass fractions,b) the measurement of the number-based dustiness index of respirable particles in the size range from about 10 nm to 1 000 nm,c) the measurement of the number-based emission rate of respirable particles in the size range from about 10 nm to 1 000 nm,d) the measurement of the number-based size distribution of the released aerosol in the size range from about 10 nm to 10 µm, ande) the collection of released airborne particles in the respirable fraction for subsequent observations and analysis by analytical electron microscopy.This European Standard is applicable to the testing of a wide range of bulk materials including powders, granules or pellets containing or releasing nano-objects or submicrometer particles in either unbound, bound uncoated and coated forms.This European Standard is applicable to all bulk materials containing nanoparticles or releasing nanoparticles while being handled.NOTE 1 Currently no number-based classification scheme in terms of dustiness indices or emission rates have been established. Eventually, when a large number of measurement data has been obtained, the intention is to revise this European Standard and to introduce such a classification scheme, if applicable.NOTE 2 The methods specified in this European Standard have not been evaluated for nanofibers and nanoplates.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 137 (Assessment of workplace exposure to chemical and biological agents)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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This European Standard provides the methodology for measuring and characterizing the dustiness of bulk materials that contain or release nano-objects or submicrometer particles, under standard and reproducible conditions and specifies for that purpose the small rotating drum method.In addition, this European Standard specifies the selection of instruments and devices and the procedures for calculating and presenting the results. It also gives guidelines on the evaluation and reporting of the data.The methodology described in this European Standard enablesa) the measurement of the respirable dustiness mass fraction,b) the measurement of the number-based dustiness index of respirable particles in the size range from about 10 nm to 1 000 nm,c) the measurement of the number-based size distribution of the released aerosol in the size range from about 10 nm to 10 µm,d) the quantification of the initial dustiness emission rate and the time to reach 50 % of the total particle number released during testing, ande) the characterization of the aerosol from its particle size distribution and the morphology and chemical composition of its particles.This European Standard is applicable to the testing of a wide range of bulk materials including powders, granules or pellets containing or releasing nano-objects or submicrometer particles in either unbound, bound uncoated and coated forms.NOTE 1 Currently no number based classification scheme in terms of particle number and emission rate has been established for powder dustiness. Eventually, when a large number of measurement data has been obtained, the intention is to revise the European Standard and to introduce such a classification scheme, if applicable.NOTE 2 The small rotating drum method has been applied to test the dustiness of a range of materials including nanoparticle oxides, nanoflakes, organoclays, clays, carbon black, graphite, carbon nanotubes, organic pigments, and pharmaceutical active ingredients. The method has thereby been proven to enable testing of a many different materials that can contain nanomaterials as the main component.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 137 (Assessment of workplace exposure to chemical and biological agents)
Alkuperä: CEN
Määräpäivä: 2018-02-26
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This European Standard provides the methodology for measuring and characterizing the dustiness of bulk materials that contain or release nano-objects or submicrometer particles, under standard and reproducible conditions and specifies for that purpose the vortex shaker method.In addition, this European Standard specifies the selection of instruments and devices and the procedures for calculating and presenting the results. It also gives guidelines on the evaluation and reporting of the data.The methodology described in this European Standard enablesa) the measurement of the respirable dustiness mass fraction,b) the determination of the mass-based dustiness index of respirable particles in the size range from about 10 nm to 1 000 nm;c) the determination of the number-based dustiness index of respirable particles in the size range from about 10 nm to 1 000 nm;d) the determination of the number-based emission rate of respirable particles in the size range from about 10 nm to 1 000 nm;e) the determination of the number size distribution of the released respirable aerosol in the size range from about 10 nm to 10 µm;f) the collection of released airborne particles in the respirable fraction for subsequent observations and analysis by electron microscopy.This European Standard is applicable to the testing of a wide range of bulk materials including nanomaterials in powder form.NOTE 1 With slightly different configurations of the method specified in this European Standard, dustiness of a series of carbon nanotubes has been investigated ([5] to 10]). On the basis of this published work, it can be assumed that the vortex shaker method is also applicable to nanofibres and nanoplates.This European Standard is not applicable to millimetre-sized granules or pellets containing nano-objects in either unbound, bound uncoated and coated forms.NOTE 2 This comes from the configuration of the vortex shaker apparatus and the small test sample required. Eventually, if future work provides accurate and repeatable data demonstrating that this is possible, the intention is to revise the European Standard and to introduce this application.NOTE 3 As observed in the pre-normative research Project [4], the vortex shaker method specified in this European Standard provides a more energetic aerosolization than the rotating drum, the continuous drop and the small rotating drum specified in prEN 17199-2:2018 [1], prEN 17199-3:2018 [2] and prEN 17199-4:2018 [3], respectively. It can better simulate high energy dust dispersion operations or processes where vibration is applied or even describe a worst case scenario in a workplace, including the (non-recommended) practice of cleaning contaminated worker coveralls and dry work surfaces with compressed air.NOTE 4 Currently no classification scheme in terms of dustiness indices or emission rates has been established according to te vortex shaker method. Eventually, when a large number of measurement data has been obtained, the intention is to revise the European Standard and to introduce such a classification scheme, if applicable.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 58/SC 2 (Cylinder fittings)
Alkuperä: ISO
Määräpäivä: 2018-03-05
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This International Standard specifies the requirements for design, specification, type testing and production testing and inspection of dedicated LPG manually operated cylinder valves for use with and directly connected to transportable refillable LPG cylinders. It also includes requirements for associated equipment for vapour and liquid service. Bursting discs and/or fusible plugs are not covered in this International Standard. Annex B identifies requirements for production testing and inspection. This International Standard excludes other LPG cylinder devices which are not an integral part of the dedicated manually operated cylinder valve. This International Standard does not apply to cylinder valves for fixed automotive installations and ball valves.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 58/SC 2 (Cylinder fittings)
Alkuperä: ISO
Määräpäivä: 2018-03-05
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This International Standard specifies the requirements for design, specification, type testing and production testing and inspection for dedicated LPG self-closing cylinder valves for use with and directly connected to transportable refillable LPG cylinders. It also includes requirements for associated equipment for vapour and liquid service. Bursting discs and/or fusible plugs are not covered in this International Standard. Annex A identifies requirements for production testing and inspection. This International Standard excludes other LPG cylinder devices which are not an integral part of the dedicated self-closing cylinder valve. This International Standard does not apply to cylinder valves for fixed automotive installations and ball valves.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 6 (Ageing, chemical and environmental resistance)
Alkuperä: ISO
Määräpäivä: 2018-03-05
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This part of ISO 877 specifies a method for exposing plastics to concentrated solar radiation using reflecting concentrators to accelerate the weathering processes. The purpose is to assess property changes produced after specified stages of such exposures. General guidance concerning the scope of ISO 877 is given in ISO/DIS 877-1:2016, Clause 1. The reflecting concentrators used in these exposures are sometimes referred to as “Fresnel reflectors” because in cross-section the array of mirrors used to concentrate the solar radiation resembles the cross-section of a Fresnel lens. For additional information about solar concentrating exposures, including a partial list of standards in which they are specified, refer to the Bibliography.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 58/SC 4 (Operational requirements for gas cylinders)
Alkuperä: ISO
Määräpäivä: 2018-03-05
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This document describes the use of modal acoustic emission (MAE) testing during periodic inspection and testing of hoop wrapped and fully wrapped composite transportable gas cylinders and tubes, with aluminium-alloy, steel or non-metallic liners or of linerless construction, intended for compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 10 000 l. This document addresses the periodic inspection and testing of composite cylinders constructed to ISO 11119-1, ISO 11119-2, ISO 11119-3, ISO 11515 and ISO 17519 standards and can be applied to other composite cylinders designed to comparable standards when authorized by the competent authority. Unless noted by exception, the use of “cylinder” in this document refers to both cylinders and tubes.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 134 (Fertilizers and soil conditioners)
Alkuperä: ISO
Määräpäivä: 2018-03-26
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This International Standard establishes a method for the determination of crude (free) moisture in ammoniated phosphate products – specifically Di-ammonium phosphate (DAP) and Mono-ammonium phosphate (MAP) fertilizer materials. Moisture is determined by drying a representative portion of the sample under vacuum and at a temperature of 50 oC.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2018-03-26
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Toimialayhteisö: Kemesta
Komitea: ISO/TC 35 (Paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2018-03-26
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This document specifies a titrimetric method for determining the esterified-acid content in binders for paints and varnishes, free acids and acid anhydrides being necessarily included in the result obtained. Because different binders vary in their resistance to saponification, this International Standard is of limited applicability. If necessary, completeness of saponification may be checked by repeating the test under more severe conditions achieved by the use of longer saponification time, more concentrated potassium hydroxide solution, or a higher-boiling alcohol as solvent. Annex A specifies a procedure suitable for binders that saponify with difficulty. The method is not applicable to those materials that show further reaction with alkalis beyond normal saponification.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 10 (Test methods for binders for paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2018-03-26
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This Document specifies the requirements and the corresponding methods of test for raw, refined and boiled linseed oils for paints and varnishes.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2018-03-26
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