w/w是质量分数的意思吗?比如73%w/w是质量分数73%的意思吗两个w是什么单词的缩写

Question

w/w 是质量分数的意思吗?
比如 73% w/w 是质量分数 73%的意思吗 两个w是什么单词的缩写

Answer 1

w/w
an abbreviation for "by weight," used in chemistry and pharmacology to describe the concentration of a substance in a mixture or solution.Properly speaking,2% w/w means that the mass of the substance is 2% of the total mass of the solution or mixture.The metric symbol g/g has the same meaning as w/w.
翻译如下：
意为“质量比”的缩写,常用于化学及药理学,描述某物质在混合溶液中的浓度.比方说,2% w/w 意思是这种物质占溶液总质量的2%.公制单位g/g与其意思相同.