ISO 287:2017规定了一种烘箱干燥方法，用于测定大量纸张和纸板的水分含量。条款8中的程序描述了如何从批次中抽取试件，在取样时执行。 ISO 287:2017适用于所有类型的纸张和纸板，包括瓦楞纸板和实心纸板，前提是纸张或纸板不含除水以外的任何在本文件规定的温度下挥发性的物质。 注:为了测定纸或纸板样品的干物质含量，例如为了计算样品的干质量，可以使用ISO 638[1]。

ISO 287:2017 specifies an oven-drying method for the determination of the moisture content of a lot of paper and board. The procedure in Clause 8, describing how the test pieces are drawn from the lot, is performed at the time of sampling. ISO 287:2017 is applicable to every type of lot of paper and board, including corrugated board and solid board, provided that the paper or board does not contain any substances, other than water, that are volatile at the temperature specified in this document. NOTE For determination of the dry matter content of a sample of paper or board, e.g. for calculation of the dry mass of the sample, ISO 638^[1] can be used.