简介:ISO 638 [1] is used in cases where the dry matter content is needed to calculate the result of chemical
analysis or physical testing and when the determination of the moisture content of a sample, rather than a lot,
is简介:ISO 638 [1] is used in cases where the dry matter content is needed to calculate the result of chemical
analysis or physical testing and when the determination of the moisture content of a sample, rather than a lot,
is required. As an example, the dry matter content of the sample is needed to express the content of elements,
such as cadmium and manganese, in relation to the oven-dry mass of the sample.详细>