Kemesta

 

This document specifies the requirements for rubber hoses and rubber hose assemblies used for the transfer of liquefied petroleum gas (LPG) in liquid or gaseous phase and natural gas with a maximum working pressure of 25 bar (2,5 MPa) and vacuum within the temperature range of -30 °C to +70 °C and, when designated -LT, -50 °C to +70 °C.

 

This document specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam. For all sizes of aluminium cast material couplings and for all couplings of size DN 100, the pressure range is from -0,8 bar to 10 bar in the working temperature range from -20 °C to +65 °C. All other couplings according to this document are capable of operating within the pressure range from 0,8 bar1 to 16 bar in the working temperature range from -20 °C to +65 °C.

 

This document specifies a method for the determination of the water vapour transmission rate (often erroneously called “permeability”) of sheet materials. This method is not generally recommended for use if the transmission rate is expected to be less than 1 g/m2 per day or for materials thicker than 3 mm. In such cases the method specified in ISO 9932 is preferred. The method cannot be applied to materials that change dimensionally (shrink or expand) to an appreciable extent under the test conditions used. In the case of materials that are damaged by hot wax, only mechanically-sealed test dishes can be used. For some purposes it may be necessary to determine the transmission rate of creased material; a procedure for this is given in Annex B.

 

 

This document defines terms, gives guidance for classification and establishes requirements for nucleic acid- and protein-based bio-devices. This document is applicable to bio-devices incorporating natural, modified and synthetically derived nucleic acid and/or protein. This document does not apply to medical devices or products.

 

This part of ISO 8502 describes a method of extracting and analysing of water-soluble contaminants from a surface by use of filter paper which can be attached to any surface, regardless of its shape (flat or curved) and its orientation (facing in any direction, including downwards). The method described is suitable for use in the field to determine the presence of water-soluble contaminants before painting or a similar treatment. NOTE The extraction method can give a false conductivity result or not take all the water-soluble material off the surface because of: (1) Soluble materials hiding in the crevices or under folds of metal; (2) Soluble materials under corrosion layers, passivation layers produced by corrosion inhibitors, oil, grease, or other non-visible thin films.