Abstract The test method covers procedures for determining pressure spots and adhesion or anti-adhesion properties of organic coatings applied to coil coated or factory coated metal substrates prior to fabrication. The coated metal is cut into at least four and, recommended, six sheets of suitable size, which are then placed under...
"Standaardpraktyk vir spoelbedekking met behulp van kronkelende traksiestawe" (ASTM D 4147) ASTM D4147 is die standaardmetode om 'n dun filmbedekking van eenvormige dikte op 'n plat plaat aan te wend met behulp van 'n opgerolde krapstaaf. ASTM D 4147-1999 Preparation of Coil Coatings with Coiled Wire and Scraper The plate is fixed on...
Betekenis en doel 5.1 This procedure defines a test method for comparing the relative wear resistance of pipe coatings. 5.2 Wear resistance can be used to specify a better coating thickness for candidate materials in the development and research work of studying new coating systems or methods and in quality control. Omvang van 1.1...
Betekenis en doel 4.1 Damage to pipe coatings is almost inevitable during transportation and construction. Breaking or peeling of the pipe coating may expose the pipe to possible corrosion because after the pipe is installed underground, the surrounding soil will be moist and will constitute effective electrolytes. The cathodic protection potential...
