Kemesta

Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2022-06-30
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This document specifies a test method for determining under defined conditions the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching with a scratch stylus loaded with a specified load. Penetration of the stylus is to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an intermediate coat.The method specified can be carried outa) either as a "pass/fail" test, by testing with a single specified load applied to the stylus to assess conformity with a particular specification, orb) as an assessment test by applying increasing loads to the stylus to determine the minimum load at which the coating is penetrated.NOTE Neither this document nor ISO 1518-2 specifies a method using a curved stylus, which is specified in ISO 12137. The choice between the three methods will depend on the particular practical problem.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2022-06-30
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ISO 7784-1:2016 specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive-paper covered wheels affect the coating of the rotating test specimens.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 139 (Paints and varnishes)
Alkuperä: CEN
Määräpäivä: 2022-06-30
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ISO 7784-2:2016 specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive rubber wheels affect the coating of the rotating test specimen.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 45/SC 2 (Testing and analysis)
Alkuperä: ISO
Määräpäivä: 2022-06-30
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This document specifies a method of thermal analysis of vulcanized rubber by differential scanning calorimetry (DSC). This method is intended for the observation and measurement of various properties and phenomena associated, such as physical transitions (glass transition, melting and crystallization, polymorphic transitions, etc.).
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 13 (Composites and reinforcement fibres)
Alkuperä: ISO
Määräpäivä: 2022-06-30
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This International Standard specifies a method for the determination of mode I interlaminar fracture toughness (critical energy release rate), GIC, of unidirectional fibre-reinforced plastic composites using a double cantilever beam (DCB) specimen.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 45/SC 3 (Raw materials (including latex) for use in the rubber industry)
Alkuperä: ISO
Määräpäivä: 2022-06-30
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This document specifies four methods for the determination of the content of the following groups of organic peroxides used as rubber vulcanizing agents. There are three titration methods and two gas-chromatography methods using capillary or packed column.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 9 (General test methods for paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2022-07-01
LaajennaSupista
 
This document specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive rubber wheels affect the coating of the rotating test specimen.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 9 (General test methods for paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2022-07-01
LaajennaSupista
 
This document specifies a test method for determining under defined conditions the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching with a scratch stylus loaded with a specified load. Penetration of the stylus is to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an intermediate coat. The method specified can be carried out
Toimialayhteisö: Kemesta
Komitea: ISO/TC 35/SC 9 (General test methods for paints and varnishes)
Alkuperä: ISO
Määräpäivä: 2022-07-01
LaajennaSupista
 
This document specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive-paper covered wheels affect the coating of the rotating test specimen.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 5 (Physical-chemical properties)
Alkuperä: ISO
Määräpäivä: 2022-07-05
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This document specifies a method of determining the bulk factor of a moulding material based on the ratio of the apparent volumetric density of a given quantity of particles and the corresponding material density. Knowledge of the bulk factor of a moulding material enables the calculation of minimum cavity volume in the design of moulds.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 5 (Physical-chemical properties)
Alkuperä: ISO
Määräpäivä: 2022-07-05
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This document specifies a method for the determination of the density of liquid resins using a pycnometer.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 5 (Physical-chemical properties)
Alkuperä: ISO
Määräpäivä: 2022-07-05
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This document specifies a method for the determination of vinyl chloride monomer in homopolymer and copolymer resins of vinyl chloride and compounded materials. The method is based on sample dissolution and headspace gas chromatography. Concentrations of vinyl chloride in the range 0,1 mg/kg to 3,0 mg/kg can be determined.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 61/SC 6 (Ageing, chemical and environmental resistance)
Alkuperä: ISO
Määräpäivä: 2022-07-06
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This test method is to evaluate the anti-biofilm activity of anti-biofilm treated plastics and other non-porous surfaces of products, including intermediate products. Textile and photocatalytic materials are out of its scope. This method is intended to be a screening test for material development, and it is not expected to reflect effects observed in the actual environment in which materials will be deployed. A “Crystal violet Staining – Absorbance measurement Assay” is used to quantify the amount of biofilm formation in this document.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 6 (Paper, board and pulps)
Alkuperä: ISO
Määräpäivä: 2022-07-06
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This Standard describes a procedure for the determination of sulphide, i.e. the hydrosulphide ion concentration, in white, oxidized white and green liquors as well as in black liquor having a dry matter content up to 40 %. The determination also includes the sulphide part of any polysulphide present in the solution.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 6 (Paper, board and pulps)
Alkuperä: ISO
Määräpäivä: 2022-07-06
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This standard specifies a potentiometric titration procedure for the determination of total, active and effective alkali in white and green liquors obtained and used in the kraft or sulphate pulping process. This method may not be used for the analysis of liquors such as oxidized white liquors which contain significant amounts of polysulphides. The definitions given below do not apply to such liquors. This method is not intended for the determination of particular ionic species, such as sulphides or carbo- nates.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 6 (Paper, board and pulps)
Alkuperä: ISO
Määräpäivä: 2022-07-06
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This standard describes a procedure for determining the content of residual alkali in Kraft black liquors having a dry matter content up to 40 %. The method is based on a potentiometric titration with hydrochloric acid and is intended for black liquor samples with an initial pH =11,0. The lower limit of determination is 0,1 g/l of eq. NaOH.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 249 (Plastics)
Alkuperä: CEN
Määräpäivä: 2022-07-07
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Toimialayhteisö: Kemesta
Komitea: CEN/TC 249 (Plastics)
Alkuperä: CEN
Määräpäivä: 2022-07-07
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ISO 6401:2008 specifies a method for the determination of vinyl chloride monomer in homopolymer and copolymer resins of vinyl chloride and compounded materials. The method is based on sample dissolution and headspace gas chromatography. Concentrations of vinyl chloride in the range 0,1 mg/kg to 3,0 mg/kg can be determined.A "dry method", suitable for PVC resins but not compounded materials, is widely used within the industry for in-house determinations. A separate International Standard based on this methodology is under development.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 23 (Transportable gas cylinders)
Alkuperä: CEN
Määräpäivä: 2022-07-07
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This document lists the best available acute-toxicity data of gases taken from a search of the current literature to allow the classification of gases and gas mixtures for toxicity by inhalation.Scope of amendmentChanges to formula in clause 4.3
Toimialayhteisö: Kemesta
Komitea: ISO/TC 136 (Furniture)
Alkuperä: ISO
Määräpäivä: 2022-07-21
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This International Standard specifies test methods for the determination of strength and durability of the structure of all types of seating without regard to use, materials, design/construction or manufacturing process. This International Standard does not apply to children’s highchairs, table mounted chairs and bath seats. Test methods for the assessment of ageing, degradation, ergonomics and electrical functions are not included. The test methods are not intended to assess the durability of upholstery materials, such as upholstery filling materials and upholstery covers. This International Standard does not include any requirements. Requirements for different end uses can be found in other Standards.