本文件规定了中药天然产品中二氧化硫的测定方法，包括仪器、化学品、操作程序和配方的要求。 适用于中药天然产品，包括中药（全药材）和从植物或动物中提取的饮片。 它不适用于传统中药中使用的矿物质。

This document specifies the determination method of sulfur dioxide in natural products used in traditional Chinese medicine, which includes the requirements of the device, chemicals, operational procedures and formula. It is applicable to natural products of traditional Chinese medicine, including Chinese materia medica (whole medicinal materials) and decoction pieces derived from plants or animals. It is not applicable to minerals used in traditional Chinese medicine.