A qualitative method of determining the corrosivity of a product by its effect on a small strip of polished copper suspended or placed in the product.
将一个擦亮的小铜片悬挂放置在产品中，依据对铜片的影响测定此产品腐蚀性的一种定性方法。
A qualitative method of determining the corrosivity of a product by its effect on a small strip of polished copper suspended or placed in the product.
将一个擦亮的小铜片悬挂放置在产品中，依据对铜片的影响测定此产品腐蚀性的一种定性方法。
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