Cold rolled steel sheet for automobile—Test method of phosphate conversion coatings
全国钢标准化技术委员会(SAC/TC 183)
本标准规定了汽车用冷轧钢板磷酸盐转化膜（以下简称“磷化膜”）的术语和定义、试样处理、试验方法和试验报告。
本标准适用于汽车用冷轧钢板涂装前铁系、锌系、锌-锰系、锌-锰-镍系磷酸盐转化膜的测定。
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