Kemesta

Toimialayhteisö: Kemesta
Komitea: CEN/TC 193 (Adhesives)
Alkuperä: CEN
Määräpäivä: 2025-12-04
LaajennaSupista
 
This document establishes a classification for one component polyurethane (PUR) adhesives according to their suitability for use in load-bearing timber products in defined climatic exposure conditions, and specifies performance requirements for such adhesives for the factory manufacture or factory-like manufacturing of load-bearing timber products only. It also classifies “adhesive product lines” where all the products within the line have the same chemical composition except for a different amount of catalyst. This document only specifies the performance of adhesives for use in an environment corresponding to the defined conditions. The performance requirements of this document are applicable to the adhesives only, not to the manufactured timber products. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions) or the production of wood-based panels, except solid wood panels, or modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. acetylated wood, heat treated wood and polymer impregnated wood. This document is primarily intended for use by adhesive manufacturers and for use in timber products bonded with adhesives, to assess or control the quality of adhesives. The requirements are applicable to the type testing of the adhesives. Production control activities are outside the scope of this document. Adhesives meeting the requirements of this document are adequate for use in load-bearing timber products, provided that the bonding process has been carried out according to an appropriate product standard. This document does not address the classification and use of adhesives in combination with the spraying of water before or during the bonding process; see informative Annex C of this document. This does neither allow nor forbid the use of adhesives in combination with the spraying of water.
Toimialayhteisö: Kemesta
Komitea: ISO/TC 31 (Tyres, rims and valves)
Alkuperä: ISO
Määräpäivä: 2025-12-05
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This International Standard specifies methods for measuring rolling resistance, under controlled laboratory conditions, for new pneumatic tyres designed primarily for use on motorcycles. The relationship between values obtained and the fuel economy of the vehicle is undetermined, and such values are not intended to be used to indicate levels of performance or quality. This International Standard applies to motorcycle tyres. Measurement of tyres using the methods of this standard enables comparisons to be made between the rolling resistance of new tyres when they are free-rolling straight ahead, in a position perpendicular to the drum outer surface, and in steady-state conditions. In measuring tyre rolling resistance, it is necessary to measure small forces in the presence of much larger forces. It is, therefore, essential that equipment and instrumentation of appropriate accuracy be used. During the measurement of rolling resistance using the methods of this standard, the value of the rolling circumference of the tyre can be derived using the drum method standard ISO 13328.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 193 (Adhesives)
Alkuperä: CEN
Määräpäivä: 2025-12-11
LaajennaSupista
 
This document specifies a method of determining the ability of adhesive bonds to resist static load. It is applicable to adhesives used in load bearing timber structures. It is applicable for the following applications: a) for assessing the compliance of adhesives according to EN 301, EN 15425, EN 16254, EN 17334 and EN 17418; b) for assessing the suitability and quality of adhesives for load-bearing timber structures; c) for assessing the effect on the bond strength resulting from constant load at different climate conditions. This method is intended primarily to obtain performance data for the classification of adhesives for load bearing timber structures according to their suitability for use in defined climatic environments. This method is not intended to provide data for structural design and does not necessarily represent the performance of the bonded member in service.
Toimialayhteisö: Kemesta
Komitea: CEN/TC 212 (Pyrotechnic articles)
Alkuperä: CEN
Määräpäivä: 2025-12-11
LaajennaSupista
 
This document defines the terms and specifies the requirements, means of categorization, test methods, minimum labelling requirements and instructions for use of the article, for ignition devices (except ignition devices for pyrotechnic articles for vehicles) of the following generic types: — igniters; — components for pyrotechnic trains; — pyrotechnic cords and fuses; — delay fuses; — fuzes. NOTE Safety fuses are subject to Directive 2014/28/EU and therefore not considered in this document. This document does not apply for articles containing pyrotechnic compositions that include any of the following substances: — arsenic or arsenic compounds; — polychlorobenzenes; — mercury compounds; — white phosphorus; — picrates or picric acid.