ISO 28706-3 INTERNATIONAL STANDARD edition Second2017-11 Vitreous and porcelain enamels Determination of resistance to chemical corrosion - Petesmination of resistance to chemical corrosion by alkaline liquids using a hexagonal vessel or a tetragonal glass bottle Emaux vitrifiés - Determination de la resistance a la corrosion chimique- Partie 3: Détermination de la résistance a la corrosion chimique par des liquides alcalins dansun récipienthexagonal ouune bouteille en verretétragonale Reference number IS0 28706-3:2017(E) Iso @IS02017 IS028706-3:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland AHbyghty raeansedlalestronicotherwipemifieldlanilaitdfitdisgpplbbicatbpyimgyoltqnsthgintprndtioedntnttiaiaet) otimeamyisowithout prior written permission. Permission can be requested from either ISO at the address below or ISo's member body in the country of the requester. fsodeBparigbt Afics 3·CP401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 [email protected] 47 www.iso.org ii @ IS0 2017 - All rights reserved IS028706-3:2017(E) Contents Page Foreword iv Introduction. V Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Principle .2 5 Reagents 2 6 Apparatus and materials 2 7 Test specimens. 9 8 Procedure. 9 8.1 General .. 9 8.2 Hexagonal vessel 9 9 Expression of results .10 10 Standard detergent solution test .10 10.1 General. 10 10.2 Test solution 11 10.3 Dasationtemptlrettest 11 Test report. 11 10.5 11 Other test solutions and/or conditions 12 11.1 General 12 11.2 Test solution 12 11.3 Destationtemthrattest 12 11.5 Test report. 12 Bibliography 13 @ IS0 2017 - All rights reserved iii