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磷酸是无色无臭的晶体或是无色粘稠的浓溶液。磷酸用途广泛，是常用的化工原料。为了保护接触磷酸作业工人的身体健康，需制订我国车间空气中磷酸卫生标准。为此，我们于１９９５～１９９６年对两家生产磷酸的工厂进行调查。对 象 与 方 法一、基本情况本文调查了我省Ａ化
Phosphoric acid is a colorless, odorless crystal or a colorless viscous concentrated solution. Phosphate widely used, is commonly used chemical raw materials. In order to protect the health of workers exposed to phosphoric acid, it is necessary to formulate the phosphoric acid hygiene standard in the workshop air in our country. To this end, we conducted a survey of two factories producing phosphoric acid from 1995 to 1996. Objects and methods First, the basic situation This article investigated A province