Kemesta

This document specifies a laboratory test method for determining the biocidal/biostatic efficacy of single active substances or combinations thereof used in film preservatives in a coating against fungal growth. This document does not apply to coatings not susceptible to fungal growth. The test method comprises only active substances for film preservation, not the protection of the substrate itself, e.g. wood, which is dealt with in another standard. The test method is applicable for active substances used for wood and masonry coatings. It is not applicable to marine coatings.Safety, health and environmental aspects are not in the scope of this document.Determination of the performance of film preservatives in coatings by applying ageing procedures is not within the scope of this document.

This document specifies the method of testing the knowledge and skill of a welder who is required to carry out welds on thermoplastics in new constructions and repair work.The skill examination of a welder is an essential condition for the assurance of the quality of the welding work.The application of this document guarantees that the examination is carried out according to a uniform test procedure.This document applies when the contractor or the authorities responsible for the application require it.Gas and water utility network industries with alternative qualification programmes are excluded from this document.This document applies to the following welding processes:- hot gas welding: round nozzle, speed, wedge;- extrusion welding;- heated tool welding: butt, saddle, socket, wedge;- electrofusion welding: socket, saddle;- solvent welding: socket.This document applies to the welding of the following products:- sheet;- pipe (unreinforced, solid wall only);- fittings (unreinforced only);- lining membrane.This document covers the welding of the following groups of materials:a) for sheets, pipes and fittings:- group 1: PVC (including all kinds of PVC-U, PVC-C) or ABS;- group 2: PP (including all kinds of PP);- group 3: PE (including all kinds of PE);- group 4: PVDF;- group 5: ECTFE or PFA or FEP;b) for lining membranes and flooring:- group 6: PVC-P;- group 7: PE (including all kinds of PE);- group 8: ECB;- group 9: PP;c) for pipes and fittings only:- group 10: PA-U 11 or PA-U 12.

This document specifies a laboratory test method for determining the biocidal/biostatic efficacy of single active substances or combinations thereof used in film preservatives in a coating against algal growth. The document does not apply to coatings not susceptible to algal growth. The test method comprises only active substances for film preservation, not the protection of the substrate itself, e.g. wood, which is dealt with in another standard. The test method is applicable for active substances used for wood and masonry coatings. It is not applicable to marine coatings.Safety, health and environmental aspects are not in the scope of this document.Determination of the performance of film preservatives in coatings by applying ageing procedures is not within the scope of this document.

This document specifies a measuring method for the characterization of rheological properties of structural adhesives using oscillatory rheometry. Moreover, the testing procedure can be applied to the reactive mixture of several components or the components of a reactive bonding paste material. The advantage of the method in comparison to rotational viscometry measurements lies in the separation of elastic and viscous material properties, thus allowing the defining of the viscoelastic properties. This enables more precise information concerning the flow behaviour of the materials, thereby resulting in a better understanding of their processing properties.The method described is particularly suitable for filled and paste-like adhesives. These are frequently processed using automated pump and application systems in industrial applications and will be set precisely considering their rheological properties. As the rheological behaviour of uncured adhesives is mostly independent of their properties in the cured state, the document can also serve for the examination of non-structural adhesives.