GB/T 11378-2005 in English

《GB/T 11378-2005金属覆盖层 覆盖层厚度测量 轮廓仪法》由TC57（全国金属与非金属覆盖层标准化技术委员会）归口，主管部门为中国机械工业联合会
本标准规定了金属覆盖层厚度的一种测量方法。该方法是首先在覆盖层表面和基体金属表面之间形成一个台阶，然后应用轮廓记录仪测量台阶的高度。本标准具体规定了仪器的特性以及轮廓仪法的特殊测量规程。本方法适用于测量平表面上厚度0.0l/μm～1 000/μm的金属覆盖层厚度，如果采取适当措施，也可以测量圆柱表面。它非常适合于微小厚度的测量，但对厚度小于0．01μm的工作表面平直度、平滑度的要求非常严格，因此建议不要在电子触针式仪器的最低厚度范围内采用本标准。本方法适用于制备覆盖层厚度标准片厚度的测量。

Scope

This standard specifies a method for measuring the thickness of metallic coatings. The method is to first form a step between the surface of the covering layer and the surface of the base metal, and then use a profile recorder to measure the height of the step. This standard specifies the characteristics of the instrument and specific measurement procedures for the profilometer method. This method is suitable for measuring the thickness of metal coatings with a thickness of 0.01 μm to 1000 μm on flat surfaces. If appropriate measures are taken, cylindrical surfaces can also be measured. It is very suitable for the measurement of tiny thickness, but the requirements for straightness and smoothness of the working surface with thickness less than 0.01μm are very strict, so it is recommended not to use this standard within the minimum thickness range of electronic stylus instruments. This method is suitable for the measurement of the thickness of the standard sheet prepared for the thickness of the covering layer.