BS ISO 16132:2016 pdf download – Ductile iron pipes and fittings — Seal coats for cement mortar linings 4 Performance test requirements 4.1 Short-term sealing efficiency When tested in accordance with Annex A, the pH of the test water shall not exceed 9,5. By agreement between the manufacturer of the product and the customer, other performance tests with other exposure periods, test waters and/or limits of pH value may be undertaken to suit particular national or customer requirements. 4.2 Long-term sealing efficiency When tested in accordance with Annex B, the pH of the test water shall not exceed 9,5 for each of the test samples. By agreement between the manufacturer of the product and the customer, other performance tests with other exposure periods, test waters and/or limits of pH value may be undertaken to suit particular national or customer requirements. Note that if the seal coat has been documented by the manufacturer to a National Standard and successfully used for a minimum of 5 years, the performance of the type test in accordance with Annex B is only required for significant changes in the coating material, type or formulation which could adversely affect the performance of the seal coat. 4.3 Cyclic pressure When tested in accordance with Annex C, visual inspection shall display no peeling of the seal coat or cracking with a width in excess of 0,8 mm. It is permissible to have some precipitation of white alkaline deposit. At the conclusion of the visual inspection, the pipe samples shall immediately be tested for sealing efficiency in accordance with Annex A. When tested in accordance with Annex A, the pH of the test water shall not exceed 9,5 in either of the pipe samples. Note that if the seal coat has been tested and successfully used for a minimum of 10 years, the performance of the type test in accordance with Annex C is only required for significant changes in the coating material, type, or formulation which could adversely affect the performance of the seal coat. 5 Routine test requirements 5.1 General Coating and re-work procedures (e.g. drying regimes for solvent-based coatings and mixing and curing regimes for multi-component materials) shall be defined by the manufacturer of the product in agreement with the seal coat supplier, if necessary, so as to enable the product to conform to the requirements of this International Standard. The tests specified in 5.2 to...
Download Address
Download