Category: EN standards

1 Scope This standard specifies a general method for assessing the driving rain resistance of wall systems by determining the water tightness of wall systems or part of wall systems under pulsating air pressure. 2 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 2.1 driving rain resistance ability of the test specimen to […]

1 Scope This European Standard specifies the classification criteria of shutters and internal and external blinds in relation with their air permeability for the calculation of additional thermal resistance given by these products according to EN ISO 10077-1. This standard applies to shutters and blinds fitted to a window, a French window or a curtain walling in such a way […]

1 Scope This European Standard defines the means to be used to cathodically protect the immersed and buried metallic external surfaces of steel harbour installations and appurtenances in sea water and saline mud. 1.1 Structures This European Standard covers the cathodic protection of fixed and floating structures. This essentially includes piers, jetties, dolphins (mooring and berthing), sheet or tubular piling, […]

1 Scope This European Standard specifies practical performance tests for respiratory protective devices, except for diving apparatus. The purpose of these tests is to subjectively assess certain properties, characteristics and functions of the device, when worn by test subjects in simulated practical use, which cannot be assessed by tests described in other standards. 2 Normative references This European Standard incorporates, […]

1 Scope This European Standard specifies the dimensions and physical properties of a range of edge protectors which are used in conjunction with tensional strapping. 2 Normative references The following normative document contains provisions which, through reference in this text, constitute provisions of this European Standard. For dated references, subsequent amendments to, or revisions of, this publication, do not apply. […]

1 Scope This European Standard specifies a method for the routine extraction of aqua regia soluble elements (as listed in annex B) from soil improvers or growing media. Materials containing more than about 28 % (m/m) organic matter will require treatment with additional nitric acid. With high solute concentrations in extract solutions, spectral interference’s and background enhancement should be expected. […]

8 Procedure 8.1 Extraction 8.1.1 Test samples passing through a 20 mm sieve Take a weight equivalent to 60 ml of the sample volume (EN 13040:1999, clause 8.5) to the nearest 1 g and transfer to the container (6.2). Add 300 ml of extracting solution (5.5), secure the cap and shake for 1 h on the shaking machine (6.3) at […]

4.3 valve regulated (secondary) cell A secondary cell which is closed under normal conditions but has an arrangement which allows the escape of gas if the internal pressure exceeds a predetermined value. The cell cannot normally receive addition to the electrolyte. (see IEC 60050-486-01 -20) 4.4 gastight sealed (secondary) cell A secondary cell which remains closed and does not release […]

4 Degrees of protection – First characteristic numeral 4.1 Indication of degree of protection The first characteristic numeral indicates the degree of protection provided by the enclosure to persons and to the parts of the machine inside the enclosure. Table 2 gives, in the third column, brief details of objects which will be ‘excluded’ from the enclosure for each of […]

1 Scope This International Standard specifies a method for the determination of the trypsin inhibitor activity (TIA) of soya products. This trypsin inhibitor activity is indicative of the degree of toasting of these products. The detection limit of the method is 0,5 mg/g. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions […]