磷化层的晶体构造能用电子显微镜或者高清放大镜判断磷化的好坏，也能把磷化层从零件上剥落下来然后测量，而且还可以用蜡块等做成模型后测量。

The crystal structure of phosphating layer can be judged by electron microscope or high-definition magnifying glass. The phosphating layer can also be peeled off from the parts and measured. Moreover, wax block can be used to make model for measurement.

把磷化层剥落的办法有：用铁的零件把磷化层划个口子，再拿稀盐酸把磷化层融化，蜡模就是磷化层的一模一样的复制，通过清洗，烘干后拿显示镜，用关照检查。

The as like as two peas for the phosphating layer are: iron parts are used to draw phosphating layer and then the thin phosphating layer is melted. The phosphating layer is melted. Wax pattern is a duplicate copy of phosphating layer. After cleaning, the display mirror is used for drying and the examination is conducted with care.

小样称量之后，放到120度的烤炉里面烘烤1小时，把小样拿出后，放到烘干的地方干了再称量。平均的质量拿磷化层的厚度来表示。

After weighing the sample, put it into a 120 degree oven to bake for 1 hour. After taking out the sample, put it in the drying place and weigh it again. The average mass is expressed by the thickness of the phosphating layer.

两块已经知道的水分的样品放到稀盐酸里，5分钟之后拿出来，静候几分钟等完全干了。试块底面拿纸巾吸干，再放到小瓶子里称量。测算出一个单位面积的增大的重量。通过测量水的两个试块，吊在很大的烧瓶里面。把试块底部距离表面10厘米，盖上盖子把烧瓶密闭好，放进恒温箱内24小时，立刻把试块拿出来放到烧瓶里称量重量。增大的重量拿膜重量的百分数衡量。

Put two known water samples into dilute hydrochloric acid, take them out after 5 minutes, wait for a few minutes, and then completely dry. The bottom surface of the test block is dried with a paper towel, and then weighed in a small bottle. Calculate the increase in weight per unit area. By measuring two test blocks of water, they are suspended in a large flask. Put the bottom of the test block 10 cm away from the surface, cover the flask, put it into the incubator for 24 hours, and immediately take out the test block and put it into the flask to weigh. The increased weight is measured as a percentage of the membrane weight.

磷化层的表面光滑程度，能用光折射的方法或者拿特定的仪器测量，表面光滑度世表示磷化层的均匀性。正常好的磷化层一般小于1微米，差的磷化差能达到10微米以上。

The surface smoothness of phosphating layer can be measured by light refraction method or by special instrument. The surface smoothness indicates the uniformity of phosphating layer. The normal good phosphating layer is generally less than 1 μ m, and the poor phosphating difference can reach more than 10 μ M.