描述了一种测定天然土壤酸溶性硫酸盐含量的程序，其中包括除可忽略的稀有物质外的所有天然硫酸盐。由于硫酸盐含量受季节性波动的影响，因此获得的结果给出了采样时的硫酸盐含量。该方法也可用于测定1:1土壤:水提取物的硫酸盐含量或地下水的硫酸盐含量。结合第1部分阅读。

Describes a procedure for determining the acid soluble sulphate content of natural soil which includes all naturally occurring sulphates apart from negligible rarities. The results obtained give the sulphate content at the time of sampling only as the sulphate content is subject to seasonal fluctuations. The method can also be used for the determination of the sulphate content of 1 : 1 soil : water extract, or the sulphate content of groundwater. To be read in conjunction with Part 1.