ASTM B244-2009 用涡流仪测量铝的阳极镀层厚度及非磁性基底金属的其它非导电镀层厚度的测量方法
ASTM B244-2009 Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic Basis Metals with Eddy-Current Instruments
测试周期：9-12个工作日