本欧洲标准规定了在化学分析和物理测试之前制备土壤改良剂或生长介质样品的常规方法。本文所述的程序仅适用于以其将用于其预期目的的形式提供给实验室的那些样品。 注1:该方法不适用于石灰材料，不适用于岩棉和泡沫板等材料。 注2:实验室压实堆积密度的确定见附件A. 注3:实验室试验确定含水量的结果见附件B. 注4:实验室试验确定压实实验室堆积密度的结果见附件B. 注5:请注意可能存在有关特定产品申报的国家立法，这可能与本欧洲标准的一般要求有所不同

This European Standard specifies a routine method for preparing a sample of soil improver or growing media prior to chemical analysis and physical testing. The procedures described herein apply only to those samples that are supplied to a laboratory in the form in which they will be used for their intended purpose. NOTE 1 This method is not applicable to liming materials and is not suitable for materials like rockwool and foam slabs. NOTE 2 The determination of the laboratory compacted bulk density is given in Annex A. NOTE 3 The results of an interlaboratory trial to determine moisture content are given in Annex B. NOTE 4 The results of an interlaboratory trial to determine compacted laboratory bulk density are given in Annex B. NOTE 5 Attention is drawn to the possible existence of national legislation for the declaration of specific products, which could differ from the general requirements of this European Standard.