本文阐述放射性同位素X射线吸收法分析石油及其产品硫份的原理及仪器，还讨论了若干技术问题。该仪器的量程分2%和4%两档，时间常数60秒，分析精度为满量程的±1%，样品称重后经5分钟即可读数。整个方法具有快速、准确、操作简便等特点。

The principle and apparatus for measuring sulfur content in petroleum and its products by radioisotope X-ray method are described. Two different ranges (0~4 wt%and 0~2 wt% sulfur) could be used with the apparatus. Analysis accuracy—1% of full scale; time constant—60 sec. This method is characterized by quickness

accuracy and ease of operation.