读者:最近,我县一工厂生产三氯化磷,需要我们测其车间空气浓度。我们想知道三氯化磷有无卫生标准,它的最高容许浓度是多少我们还想知道采用什么方法进行监测,所需什么仪器,怎样进行操作。如果我们想知道标准的具体内容,应该何处去找。编者:中国公共卫生杂志1990年第6卷第7期、第8期上刊登了1989年卫生部批准实施的109种国家卫生标淮目录。其中就有三氯化磷。它的车间空气中最高容许浓度为0.5mg/m~3。所用仪器是分光光度计,采用钼酸铵分光光度法。采样时,用一个装有10ml纯水作吸收液的多孔玻板吸收管,以0.2L/min 的浓度,抽取12～24L车间空气。此方法的测定范围 Readers: Recently, a factory in our county produces phosphorus trichloride, which requires us to measure the air concentration in the workshop. We would like to know if there is any hygienic standard for phosphorus trichloride. What is the maximum allowable concentration? We also want to know what instrument to use and how to operate it. If we want to know the specific content of the standard, where should we find. Editor: China Public Health Journal 1990 Volume 6 No. 7, No. 8 published in 1989 approved by the Ministry of Health 109 kinds of national health standards directory. Among them there is phosphorus trichloride. Its workshop air maximum allowable concentration of 0.5mg / m ~ 3. The instrument used is a spectrophotometer using ammonium molybdate spectrophotometry. At the time of sampling, 12 ~ 24L of workshop air was extracted at a concentration of 0.2L / min using a perforated glass pipette containing 10ml of pure water as the absorbing liquid. The scope of this method