6451 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONMEXAYHAPOAHAA OPFAHM3AUMA O CTAHAAPTW3AUWW-ORGANISATION INTERNATIONALE DE NORMALISATION Plastics coated fabrics -- Polyvinyl chloride coatings - Rapid method for checking fusion Supports textiles revetus de plastique - Revetements en polychlorure de vinyle - Methode rapide de controle de gelification First edition - 1982-09-15 UDC 678.066 : 620.19 Ref. No. ISO 6451-1982 (E) 6451-1982 (E) termination, polyvinyl chloride, degrees, gelation. Descriptors : coated fabrics, fabrics coated with plastics, Price based on 1 page Copyright International Organization for Standardization ted without license from IHS Not for Resale Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO member bodies). The work of developing Interna- tional Standards is carried out through Iso technical committees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as international Standards by the ISo Council. International Standard ISO 6451 was developed by Technical Committee ISO/TC 45, Rubber and rubber products, and was circulated to the member bodies in November 1980. Hungary Austria Spain Belgium India Sri Lanka Ireland Sweden Brazil Canada Thailand Italy China Korea, Dem. P. Rep. of Turkey Korea, Rep. of Czechoslovakia United Kingdom Netherlands USA Denmark Poland USSR Egypt, Arab Rep. of France Romania Germany, F.R. South Africa, Rep. of No member body expressed disapproval of the document. International Organization for Standardization,1982 Printed in Switzerland Copyright International Organization for Standardization ted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 6451-1982 (E) Plastics coated fabrics -- Polyvinyl chloride coatings Rapid method for checking fusion 1 Scope and field of application with the coating under test outwards. Secure each test piece with a suitable metal clip (2.4) and immerse the assembly in the This International Standard specifies a rapid method for check- acetone (2.1) in the vessel (2.2) at standard laboratory ing the fusion of polyvinyl chloride (PVC) coatings on coated temperature. fabrics. After 15 min, remove each assembly from the acetone and ex- The method is not suitable for coatings obtained from aqueous amine visually for new cracks or holes. Disregard any removal dispersions of PVC. of laquer or surface effects. 2 Reagent and apparatus 5 Expression of results 2.1 Acetone, of recognized analytical grade. If fresh cracks and holes have appeared in the bent area, report that fusion is incomplete. 2.2 Glass vessel, to contain the test assemblies and which may be covered by a glass plate. 6 Test report 2.3 Glass rod, of diameter 5 mm. The test report shall include the following information : 2.4 Metal clips. a) a reference to this International Standard; 3 Test pieces b) a full identification of the product tested; Depending on the thickness of the coated fabric, cut three test pieces of dimensions either 20 mm × 40 mm or c) the test temperature; 20 mm × 70 mm. The test pieces should, if possible, be taken one near the centre and the others at lieast 200 mm from the d) the result of the test (fusion complete or incomplete); sides of the sample. If the material under test is coated on both sides, the number of test pieces should be increased to six so that three test pieces can be examined per coated face. e) any deviation, by agreement or otherwise, from the procedure specified; 4 Procedure f) the date of the test; Examine the PvC layer of the test piece for cracks or holes and record the result.