ISO 13805 pdf download

ISO 13805 pdf download.Vitreous and porcelain enamels for aluminium — Determination of the adhesion of enamels on aluminium under the action of electrolytic solution 1 Scope This International Standard specifies a test method for the accelerated determination of the resistance of porcelain enamel coatings on aluminium and aluminium alloys to spalling as a result of exposure to moisture or weathering. Because spalling is caused by the lack of adhesion between the coating and the base metal, the spall test is a test of adhesion. The greater the extent of spalling in this test, the greater the likelihood that the article will spall in service. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative document indicated below. For undated references, the latest edition of normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. IS0 381 9, Laboratory glassware — Beakers . ISO 4788, Laboratory glassware — Graduated measuring cylinders. ISO 1 01 41 , Vitreous and porcelain enamels — Vocabulary. ISO 1 3805, Vitreous and porcelain enamels on aluminium — Production of specimens for testing. 3 Terms and definitions For the purposes of this International Standard, the terms and definitions given in ISO 1 01 41 apply. 4 Principle A scored enamelled aluminium specimen is exposed to an aqueous test solution consisting of antimony trichloride, SbCl 3 , having a concentration of 1 0 g/I, at an ambient temperature of 1 8 O C to 28 O C for 20 h. 5 Designation The test method for the determination of the adhesion of enamel coatings on aluminium and aluminium alloys by means of the spall test described in this International Standard shall be designated as follows: 6 Apparatus 6.1 Balance. 6.2 Graduate measuring cylinder, with a capacity of 1 000 ml in accordance with ISO 4788. 6.3 Beaker, in accordance with ISO 381 9 or plastic vessel of suitable size. 6.4 Plastic or glass hook, or stand, for holding the specimen in the test solution. 6.5 Viscose sponge. 6.6 File. 6.7 Steel needle. 7 Reagents 7.1 Test solution The test solution...