2 毫米,测试就为合格。 Slicing test should bedone as AWWA C210-97(5.2.3).If only the material length sliced is not exceed 3.2mm, the test can beregarded asqualified. J.缺陷检测 Defect test 100% 钢管 100% pipe 待涂层固化以后,要利用缺陷检测器在涂料技术规范中规定的电压下对钢管进行检测。 After the coating solidifying, the pipe test should bedone with defect detector under the specified voltage. 7 涂层修复 Coating reparation 修复 repair 检测到缺陷的所有钢管 Allpipes that have defects 待修复的区域必须进行清理,除去缺陷。修复面必须平整、光滑、以保证涂层和原涂层一样。 Thearea that need repaired must beblast cleaning and remove the defect. The repairing surface must be neat, smooth tokeep the coating accord with original coating. 8 修复检查 Repairing and checking A.测量涂层厚度 Measure the thickness ofcoating 所有修复的钢管 Allrevised pipe 每次修复至少应进行两次测量。平均干燥厚度必须等于或大于业主要求后度(单位:密耳)。Every revision should dotwice measurements.
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